Re: [BVARC] 2 Mtr. base station.

[Gary Sitton via BVARC]

Chris, I can use only 5w on xmit and get a very low noise repeater 
connection.  My antenna is a vertical dipole at 20'.

Gary

On May 17, 2024 3:09:51 PM Chris Medlin via BVARC  wrote:
Hi Gary, What radio are you running in the house? If it’s a mobile rig, you 
wont need anything more than low power from the Heights.. it will last you 
a good while… probably 500mA on receive and 2A on xmit (on low power).




Chris/AC5CM



From: BVARC  On Behalf Of Gary Sitton via BVARC
Sent: Friday, May 17, 2024 2:53 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gary Sitton 
Subject: [BVARC] 2 Mtr. base station.



Just tested my repeater connection from the Heights.  I have 100 amp 13 v., 
Lithium-Iron-Phosphate system here.  Cell phone is working but no cable 
internet. We have no power here but are getting by.


Gary K5AMH




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[BVARC] 2 Mtr. base station.

[Gary Sitton via BVARC]

Just tested my repeater connection from the Heights.  I have 100 amp 13 v., 
Lithium-Iron-Phosphate system here.  Cell phone is working but no cable 
internet. We have no power here but are getting by.

Gary K5AMH

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Re: [BVARC] Please explain this end fed antenna

[Gary Sitton via BVARC]

I agree on a 49:! Unun for HWEF use. For 1.8 mhz special care should be 
taken in the design.

G.

On May 7, 2024 8:48:02 PM Michael Shanks via BVARC  wrote:
I do believe it would be best to go to a 64 to 1 ballon I believe it’s 64 
to one I could be wrong rather than the 49 to one for that wire if you got 
the space try it I have


Sent from my iPhone


On May 7, 2024, at 8:24 PM, Michael Shanks  wrote:
If I remember correctly, my NF half wave for 180 was 262 with a 49 one 
ballon about 20 foot to 37 foot up in the air worked well with that much 
wire in the air. You’d be surprised what you can hear.


Sent from my iPhone


On May 6, 2024, at 7:08 PM, Gary Sitton via BVARC  wrote:
Also, if the main portion isn't well above ground, you'll need to make the 
length greater to account for the capacitive effect of the ground itself. L 
configurations are very effective but avoid the inverted V scheme.

G.

On May 6, 2024 12:58:52 PM Gary Sitton via BVARC  wrote:
Clue: HWEF (half wave end fed) so half of160 meters is 80 meters or about 
250 feet!

Gary K5AMH


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Re: [BVARC] Please explain this end fed antenna

[Gary Sitton via BVARC]

Also, if the main portion isn't well above ground, you'll need to make the 
length greater to account for the capacitive effect of the ground itself. L 
configurations are very effective but avoid the inverted V scheme.

G.

On May 6, 2024 12:58:52 PM Gary Sitton via BVARC  wrote:
Clue: HWEF (half wave end fed) so half of160 meters is 80 meters or about 
250 feet!

Gary K5AMH


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Re: [BVARC] Please explain this end fed antenna

[Gary Sitton via BVARC]

Clue: HWEF (half wave end fed) so half of160 meters is 80 meters or about 
250 feet!

Gary K5AMH

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Re: [BVARC] Antenna Tuner

[Gary Sitton via BVARC]

Odd multiples of a full wave length will exhibit voltage minima and current 
maxima at the ends. The means from Ohms law that the ends will exhibit 
impedance minima,  that is you will need a impedance  match to higher 
values. A 9:1unun will generally give EFHW antennas a reasonable match to 
50 Ohms coax. End feeding a long wire is a tricky business and frought with 
many problems.

73, Gary K5AMH



On March 31, 2024 12:26:24 PM John D via BVARC  wrote:
Andre I was having issues with an end fed 73 ft length wire with no unun  
and was hoping  longer length would decrease SWR. it looks like the exact 
opposite happened…


John D
W5RDY


On Mar 30, 2024, at 7:20 PM, Andre Pollard  wrote:
Did you tune the length of the wire? I'm running a end fed with 49:1 unun, 
and SWR was terrible with 66' of wire. Ended up taking ~4 feet off, and SWR 
is under 1.8 on 40, 20, 15, and 10.


On Sat, Mar 30, 2024, 6:54 PM John D via BVARC  wrote:
Does anyone have a recommendation for a good antenna tuner for a 1/2 wave 
end fed wire antenna? Have researched Yaesu FC40, LDG Electronics, MFJ, ham 
radio website and have not found anything that has attracted my attention. 
My SWRs are way off and  according to the website "literature" wire 
antennas need a tuner...


Any feedback would be greatly appreciated.

John D
W5RDY

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[BVARC] Free: Used 350 watt PC power supply!

[Gary Sitton via BVARC]

All:

This was an operating PC power supply Dell compatible.

It has all auxiliary internal cables and AC line (120/240).

Free to first person who picks it up locally in the Heights

in near north Houston just inside loop 610.  Call me at

(713) 305-6765 for location details, etc.

73,
Gary Sitton, K5AMH
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Re: [BVARC] Astron RS-50 Power supply for Sale

[Gary Sitton via BVARC]

Well priced!
Gary K5AMH


On January 14, 2024 9:29:40 AM K5BOU via BVARC  wrote:
I’m selling my power supply, Aston RS-50 A, in excellent condition. 
Excellent review. No scratch like new. They were used for only six months. 
See the link below for the specs sheet.

With the original box. Retail for $450+ Taxe.
Selling prices: $275. ( Cash/Zelle)
Pickup in Richmond, near FM 359

Astron Corporation RS-50A Astron Power Supplies | DX Engineering


K5BOU-PhilippeBoucaumont
Houston|Texas|USA|
https://mccrarymeadowsweather.com/

#77940


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Re: [BVARC] Solar effect

[Gary Sitton via BVARC]

Mike, you're right. It's protons or hydrogen ions in the large mass 
ejections.

There are some photons both ionizing (x-rays and gamma rays) and visible,
but mostly hydrogen ions.

Gary K5AMH

On 1/5/2024 11:15 AM, Mike Knerr via BVARC wrote:
I understood that a coronal mass ejection released protons, not 
photons. These also bring high electromagnetic fields with them.

I understood the electromagnetic fields are causing the problems.
Just a thought.
Mike Knerr KI5UBL
73

On Fri, Jan 5, 2024, 10:03 AM Stephen Flowers via BVARC 
 wrote:


Richard,
Good morning and Good question.  The way I understand it, solar
flares emit a large amount of photons at various frequencies.  If
these photons are sufficiently energetic, then they will pass a
large portion of the ionosphere and impact what we refer to as the
D layer.  Note that the D layer is a daytime ionospheric layer
that according to some models in the literature is made up of NO^+
, NO^+ (H_2 O)_n , H^+ (H_2 O)_n , CO_3 ^− , and O_3 ^−

These species readily combine with free electrons that increase in
numbers due to the flares.  This in turn results in “less
refraction" of E waves that we as amateurs need to bounce our
signals off of to communicate.  In a nutshell, D layer
constituents don’t refract as much and this is interpreted as “D
layer absorption”.  If you look at this
 
URL
you can playback a movie of the latest D layer absorption
measurements.  During a solar storm you’ll see the bar graph in
the right hand corner increases across multiple frequencies.

Note that in a solar flare event the lower frequencies are
*/preferentially/* impacted.

Screenshot 2024-01-05 at 9.48.35 AM.png

Of course other layers in the ionosphere are also affected by
solar flares in ˜8 minutes of emission and CMEs hit us w/a delayed
impact of ˜1 day or so; however, you may be on to something when
you say that the lower frequencies suffer a bigger impact.  In
that case, you may be right in that the higher frequencies, 20m
and higher, may be the way to go for Ham radio ops during solar
storms.

Thank you for bringing up this topic!

73,
Stephen (W2WF)



On Jan 5, 2024, at 9:03 AM, David Holden via BVARC
 wrote:

A strong solar storm can cause a complete blackout of HF
communication including the higher frequency bands. I was in a
QSO a year or so ago and it just dropped as a solar storm hit.
The noise floor dropped to zero as not even noise could propagate
through the highly energized atmosphere.

Lesser solar storms can increase noise particularly on the lower
bands so 80 might be unusable while 20 might just be noisy.

David WJ9O



On Jan 4, 2024, at 10:25 PM, Richard Bonica via BVARC
 wrote:


To all,
Tell me if I am wrong on this. During these solar storms, it is
my understanding to use the higher frequency rather than lower?
If so, is 20 and 40m bands a good choice?
Thank you in advance
Richard
KG5YCU

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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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[BVARC] simple 1/2 wave and 5/8 wave coaxial verticals

[Gary Sitton via BVARC]

    Regarding recent conversations on 5/8 wave vertical antennas:

https://vk2zoi.com/flower-pots/

    Open this website with a browser and open one of the articles

on "Double 5/8 Flower Pot" verticals.   This 5/8 wave vertical dipole

may be constructed using some RG-59 coax and a bit of soldering.

The antenna uses the coax itself to form 1/4 wave sleeve transformers

to convert the dipole's 100 ohm feed point to 50 ohms.  The coil of

RG-59 is used to choke off the sneak RF path on the outer portion of

the coax.  It takes a bit of thought to understand this system but it

actually works well.  The entire antenna should be covered using a

1" section of PVC as shown else the SWR will rise when it gets wet.

I have implemented the simpler 1/2 wave "Flower Pot" vertical using

RG-8X coax for my 2 mtr. base station antenna.  I currently use a  QRO

1/2 wave vertical dipole on 20 mtrs. using the same principle.

73,
Gary Sitton, K5AMH
gasit...@comcast.net

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Re: [BVARC] Can someone please identify this CW? Thank you.

[Gary Sitton via BVARC]

Marvin:

Sounds like "EAUP857" at about 25 wpm, what ever that means

73, Gary

On 10/14/2023 8:03 AM, Suggs, Marvin (KTRK-TV) via BVARC wrote:





Sent from my iPhone


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gasit...@comcast.net
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Re: [BVARC] Digital Scope and .357 S Magnum For Sale!

[Gary Sitton via BVARC]

Digital Scope sold! Thanks.

S model 686-6 still available.

On August 29, 2023 11:48:01 AM Gary Sitton via BVARC  wrote:

Hello:


Very Good Cond. Hantek DSO05202P 200 MHz digital sampling scope + goodies 
$350 OBO.



Excellent Cond. S .357 Magnum (Stainless steel, 7 shot, 6" barrel) $600 OBO.



73,

Gary Sitton, K5AMH
gasit...@comcast.net

(713) 305-6765



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[BVARC] Digital Scope and .357 S Magnum For Sale!

[Gary Sitton via BVARC]

Hello:

Very Good Cond. Hantek DSO05202P 200 MHz digital sampling scope + 
goodies $350 OBO.


Excellent Cond. S .357 Magnum (Stainless steel, 7 shot, 6" barrel) 
$600 OBO.


73,
Gary Sitton, K5AMH
gasit...@comcast.net
(713) 305-6765

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Re: [BVARC] AI

[Gary Sitton via BVARC]

Let's challenge AI, prove that
 Dec 25 = Oct 31,
or Christmas = Halloween. The proof is clear since
 Decimal 25 = Octal 31, QED!

Gary K5AMH



On August 5, 2023 12:03:13 AM Scott Little via BVARC  wrote:


On Sat, Jul 29, 2023 at 06:32:38PM -0500, K5BOU via BVARC wrote:
I just ask AI app to write a small document about Ham Radio. He took less 
to 2 minutes. Crazy!

The issue with this is that ChatGPT and other LLMs will happily write a
proof for 4^2 == sqrt(16)...
and you have to closely read the proof to find the error.
I'd rather stick to actual people for copywriting.
---
Scott KI5WLJ



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Re: [BVARC] Nizar A. Mullani, BS, Receives SNMMI 2023 Georg Charles de Hevesy Nuclear Pioneer Award - SNMMI

[Gary Sitton via BVARC]

All:

        I remember Nizar back when I worked with him at the
Positron Corp. in the late 80's.  He was with MD Anderson and
coordinated our work on PET cameras with the Doctors there
and facilitated the use of UT's small Cyclotron to produce
the positron emitting isotopes like florine-18.  Since the
half-life of this isotope is about 2 hours, Nizar had to rush
the drug (a glucose analog)  to us and injected himself many
times as a test subject for brain scans, etc.  I was a computer
programmer then and worked on 2-D digital image processing
algorithms.  Congratulations to Nizar for his work on nuclear
medicine technology and devices!

73, Gary K5AMH

On 6/26/2023 7:54 AM, Nizar Mullani via BVARC wrote:
Sorry I could not be at FD. I had to be in Chicago to receive the 
highest award presented by the Society of Nuclear Medicine. The award 
was for my work with PET, DermLite and Veinlite products. PET scanners 
are used for staging of cancer patients during treatment.


Nizar K0NM.

Nizar A. Mullani, BS, Receives SNMMI 2023 Georg Charles de Hevesy 
Nuclear Pioneer Award - SNMMI



https://www.snmmi.org/NewsPublications/NewsDetail.aspx?ItemNumber=44178


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Re: [BVARC] Fwd: Rifle Stuff Available.

[Gary Sitton via BVARC]

Items all sold!
K5AMH


On April 30, 2023 1:22:02 PM Gary Sitton via BVARC  wrote:

AN OFFER PENDING...
K5AMH



To any interested party:

I am no longer needing the following rifle accessories:
1) Tipton "Best Gun Vise" rifle cleaning and servicing vise.
2) Caldwell "Lead Sled" ballistic rifle scope zeroing setup.
3) Miscellaneous Magpul rifle stock and grip parts, and a
4) Bushnell "Red Dot" picatinny rail sighting system.
I wish to dispose of all of these items to a single individual.
73, Gary Sitton, K5AMH
gasit...@comcast.net
(713) 305-6765


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[BVARC] Fwd: Rifle Stuff Available.

[Gary Sitton via BVARC]

AN OFFER PENDING...

K5AMH




To any interested party:

   I am no longer needing the following rifle accessories:

1) *Tipton* "Best Gun Vise" rifle cleaning and servicing vise.

2) *Caldwell* "Lead Sled" ballistic rifle scope zeroing setup.

3) Miscellaneous *Magpul *rifle stock and grip parts, and a

4) *Bushnell* "Red Dot" picatinny rail sighting system.

I wish to dispose of*all *of these items to a single individual.

73,Gary Sitton, K5AMH

gasit...@comcast.net
(713) 305-6765
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Re: [BVARC] Rifle Stuff Available.

[Gary Sitton via BVARC]

Almost any offer if cash & pickup in the Heights.

Gary

On 4/30/2023 12:32 PM, Rick Wannall via BVARC wrote:


I could certainly make use of some of that. If you still have them, 
what would you want for them?


Rick Wannall

KG5ITH

*From:* BVARC  *On Behalf Of *Gary Sitton via 
BVARC

*Sent:* Sunday, April 30, 2023 11:41
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB 
*Cc:* Gary Sitton 
*Subject:* [BVARC] Rifle Stuff Available.

To any interested party:

   I am no longer needing the following rifle accessories:

1) *Tipton* "Best Gun Vise" rifle cleaning and servicing vise.

2) *Caldwell* "Lead Sled" ballistic rifle scope zeroing setup.

3) Miscellaneous *Magpul *rifle stock and grip parts, and a

4) *Bushnell* "Red Dot" picatinny rail sighting system.

I wish to dispose of*all *of these items to a single individual.

73,Gary Sitton, K5AMH

gasit...@comcast.net

(713) 305-6765



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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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[BVARC] Rifle Stuff Available.

[Gary Sitton via BVARC]

To any interested party:

   I am no longer needing the following rifle accessories:

1) *Tipton* "Best Gun Vise" rifle cleaning and servicing vise.

2) *Caldwell* "Lead Sled" ballistic rifle scope zeroing setup.

3) Miscellaneous *Magpul *rifle stock and grip parts, and a

4) *Bushnell* "Red Dot" picatinny rail sighting system.

I wish to dispose of*all *of these items to a single individual.

73,Gary Sitton, K5AMH

gasit...@comcast.net
(713) 305-6765
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Re: [BVARC] BLT-109 N5EKO/B

[Gary Sitton via BVARC]

Hope they don't shoot it down!


On March 10, 2023 8:38:51 PM Walter Holmes via BVARC  wrote:
Here’s an update on one of the balloons we launched last Saturday from the 
HamFest.


It just woke up for the day a few minutes ago over China.

You can click on the following link if you want to track it yourself at any 
time.

https://aprs.fi/#!mt=roadmap=6=a%2FN5EKO-109=604800=604800




Walter/K5WH


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[BVARC] Eddie: Digital copy OK here...

[Gary Sitton via BVARC]

Gary Sitton, K5AMH
gasit...@comcast.net

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Re: [BVARC] Fwd: What's wrong with this picture?

[Gary Sitton via BVARC]

Yikes & OMG!!

On 10/13/2022 11:21 AM, Michael Ewer via BVARC wrote:

She’s going to have hot fingers!

Sent from my iPhone

On Oct 13, 2022, at 11:18 AM, john Parmalee via BVARC 
 wrote:




John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ




Women in STEM fields.jpg
--


Women in STEM fields.jpg
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--
Gary Sitton, K5AMH
gasit...@comcast.net
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Re: [BVARC] Used Dell PC Free..

[Gary Sitton via BVARC]

Sorry, it's been given away.
Gary K5AMH


On October 11, 2022 6:16:19 AM Cal Birdsall via BVARC  wrote:


Hi Gary - If no one has spoken for it I could use a spare.  Thanks

Cal Birdsall N5BR
Sent from my iPhone
713-419-1977



On Oct 10, 2022, at 11:42 AM, Gary Sitton via BVARC  wrote:

?
Anyone who needs an IBM PC, this one needs only a keyboard, mouse and 
monitor. It has W-10 installed in it on an SSD. It's free for pickup at my 
QTH in the Heights.

Gary Sitton, K5AMH
(713)-305-6765


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[BVARC] Used Dell PC Free..

[Gary Sitton via BVARC]

Anyone who needs an IBM PC, this one needs only a keyboard, mouse and 
monitor. It has W-10 installed in it on an SSD. It's free for pickup at my 
QTH in the Heights.

Gary Sitton, K5AMH
(713)-305-6765

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Re: [BVARC] Very long exchange

[Gary Sitton via BVARC]

Glad to hear someone even knows what a bug is!
Gary


On September 28, 2022 8:50:37 PM "Jonathan Guthrie, KA8KPN via BVARC" 
 wrote:



I might have my antenna up by then, and I've been practicing with a bug.

On 9/27/2022 7:39 PM, Mark via BVARC wrote:


This weekend SKCC will have an event that has a Long exchange. Look it up

The skcc member nr is optional ; I will send MEMBER NR.


I will be working the CA QSO party.

But will work SKCC MEMBERS





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Re: [BVARC] Elecraft P3 BLACK SCREEN but not DEAD

[Gary Sitton via BVARC]

Get a schematic and a digital jolt meter to check the regulator outputs. I 
have my 13 VDC supply system protected with large 16 V MOVs and reverse 
biased silicon 10 A diodes. Fuses are way too slow to protect the equipment!

73, Gary K5AMH


On August 21, 2022 8:10:23 AM Glenn Anderson via BVARC  wrote:
I had the same problem with mine a while ago. The problem was with the 
3.3-volr regulator module. It would get very hot and stop working after a 
few minutes. There are two regulator modules on the input board. A 5-volt 
and a 3.3-volt. They are the thick, black, edge-mounted things on the 
board. If you have the same problem,  one if them will be very hot after a 
few minutes. I replaced mine with a different type and it solved the issue.


Calls to the factory were of little help.

Let me know if this is helpful.

Glenn

 Original message 
From: Allen Brier via BVARC 
Date: 8/21/22 02:44 (GMT-06:00)
To: tdxs-l...@tdxs.net, 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
, ctd...@lists.kkn.net

Cc: n...@earthlink.net
Subject: [BVARC] Elecraft P3 BLACK SCREEN but not DEAD

My P3 screen has gone black. When I plug in the power, I still hear some 
very quiet relay click.  Any quick ideas?


Full disclosure: I suffered a voltage spike some time ago which took out my 
K3 some time ago (it is at Elecraft now); P3 still operated but the POWER 
switch no longer worked, i.e. it was on all the time whenever power was 
applied. (I am borrowing a K3 from a very, very good friend).


Does anyone work on P3’s besides Elecraft?


Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801


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Re: [BVARC] Seeking Antenna Design Info

[Gary Sitton via BVARC]

Capacitor-less traps made of RG-8X are neat also. There's a computer 
program for these weird guys on the internet. The real problem here is for 
a given coil/trap inductance at some frequency, how much does it shorten 
the remaining antenna? Also, what trade off between inductance and 
capacitance is best for any trap frequency? All this applies to air core 
inductors and not ferrites.

Gary


On July 9, 2022 8:58:42 PM Rick Hiller via BVARC  wrote:
Loading coils used also as traps are my focus.  Alpha Delta uses what they 
call an Iso-Res  Isolation (trap) and Resonator (loading coil) in their 
antennas.   Bill Orr mentions a few antennas in his books that use them, 
but they are cookbook examples for building and nothing on the design of 
the dual function coil.


Can any one provide me with a book reference or a URL etc. that might 
provide clues as to the design, building and measurement of such devices?



I realize that certain coils have a self-resonance and I can find info on 
that, but there are no references that apply this self-resonance to an 
antenna design.



Contact me direct, if you wish.   rickhille...@gmial.com




More detail if you wish to read about it..JP sent me a design 
of a shortened EFHW for 80 and 40 that uses a 110 uH coil near the end of 
the antenna wire that provides loading for 80 MX and traps 40 MX energy, 
thus making the antenna dual band.  I modeled it in EZNEC based on the 
basic design, and lo and behold the antenna when doing an SWR sweep does 
indeed resonant on 80 and 40.  Displaying the currents on the wire show 
that it is used at full length on 80 and stops at the coil on 40.
I think I am missing something in my research.  TNX for readingany help 
appreciated.



TNX ES 73W5RH
Rick Hiller  e-mail: rickhille...@gmail.comh choke
Cell:832-474-3713
Physical: 9031 Troulon Drive
  Houston, TX 77036

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Re: [BVARC] Dozens of DVDs FREE for pickup...

[Gary Sitton via BVARC]

Sorry, already taken.

On June 29, 2022 1:34:44 PM Travis Burgess via BVARC  wrote:





Those would be perfect for movie nights at a nursing home or the VA hospital.

Travis

From: BVARC  on behalf of orin snook via BVARC 


Sent: Wednesday, June 29, 2022 12:49 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: orin snook 
Subject: Re: [BVARC] Dozens of DVDs FREE for pickup...
Gary,

Pick up the 4th?

73,
KB5F
Orin Snook
281-745-0539

From: BVARC  on behalf of Gary Sitton via BVARC 


Sent: Wednesday, June 29, 2022 12:29 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gary Sitton 
Subject: [BVARC] Dozens of DVDs FREE for pickup...
Total mixed bag of last 10 years of collecting DVDs:
Rom-Com, Mystery, Sci-Fi, Drama, Action, etc.
All FREE for pickup at my QTH in Heights. Must
take entire batch!
73,
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

T

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Re: [BVARC] Dozens of DVDs FREE for pickup...

[Gary Sitton via BVARC]

Ok, but they go in trash on the 5th!!
Gary


On June 29, 2022 12:49:19 PM orin snook via BVARC  wrote:

Gary,

Pick up the 4th?

73,
KB5F
Orin Snook
281-745-0539

From: BVARC  on behalf of Gary Sitton via BVARC 


Sent: Wednesday, June 29, 2022 12:29 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gary Sitton 
Subject: [BVARC] Dozens of DVDs FREE for pickup...
Total mixed bag of last 10 years of collecting DVDs:
Rom-Com, Mystery, Sci-Fi, Drama, Action, etc.
All FREE for pickup at my QTH in Heights. Must
take entire batch!
73,
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."


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[BVARC] Dozens of DVDs FREE for pickup...

[Gary Sitton via BVARC]

Total mixed bag of last 10 years of collecting DVDs:

 Rom-Com, Mystery, Sci-Fi, Drama, Action, etc.

All FREE for pickup at my QTH in Heights. Must

take entire batch!

73,
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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Re: [BVARC] Roller Inductor Question

[Gary Sitton via BVARC]

Yes, that's also another reason for the increased spacing.
Gary K5AMH

On 6/29/2022 9:00 AM, Joseph Benoit via BVARC wrote:
In addition to otherwise stated by K5AMH, as the frequency gets much 
higher incrementally smaller inductance value is required (wider 
spacing, turns-per-inch on a given coil diameter) and smaller 
incremental change is needed to fine-tune if it were.


On Sat, Jun 25, 2022 at 11:14 AM Michael Giannaccio via BVARC 
 wrote:


This is probably a basic question but I’ve come up empty in my
search and can’t seem to find the answer in the Antenna Book.

Can someone explain to me or link me to some reading as to why
some roller inductors and screwdriver antennas like the ATAS have
less turns per inch on the ends of the coil and more towards the
center? I do have the latest edition of the antenna book so if
it’s in there I can look it up.





Thanks!

73,

Mike Giannaccio
W5REZ
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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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Re: [BVARC] Roller Inductor Question

[Gary Sitton via BVARC]

Yes, the wider spacing at one end is to reduce the parasitic
inter winding capacitance at higher frequencies (> 10 MHz).
This winding to winding capacitance effects the self resonance
of the inductor making it less ideal at these higher frequencies.

Gary K5AMH


On 6/25/2022 11:14 AM, Michael Giannaccio via BVARC wrote:

This is probably a basic question but I’ve come up empty in my search and can’t 
seem to find the answer in the Antenna Book.

Can someone explain to me or link me to some reading as to why some roller 
inductors and screwdriver antennas like the ATAS have less turns per inch on 
the ends of the coil and more towards the center? I do have the latest edition 
of the antenna book so if it’s in there I can look it up.





Thanks!

73,

Mike Giannaccio
W5REZ


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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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Re: [BVARC] Slightly used GE washer & elec. dryer for sale.

[Gary Sitton via BVARC]

Yes , I'll send model numbers soon but am busy now.
Gary

On June 8, 2022 9:25:46 AM Dwayne Jones via BVARC  wrote:

Gary,
Can you post photos and maybe model numbers?

Dwayne
KB5YTA

On Wed, Jun 8, 2022 at 8:31 AM Gary Sitton via BVARC  wrote:

Purchased these two units recently but they're medium capacity, commercial 
grade. I need at least high capacity, so I must replace these units. 
Purchase price was about $2,000 but will accept any reasonable offer at 
this point.  Must pickup in 77008 Heights area near loop 610.

Thanks,
Gary K5AMH
713-305-6765


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[BVARC] Slightly used GE washer & elec. dryer for sale.

[Gary Sitton via BVARC]

Purchased these two units recently but they're medium capacity, commercial 
grade. I need at least high capacity, so I must replace these units. 
Purchase price was about $2,000 but will accept any reasonable offer at 
this point.  Must pickup in 77008 Heights area near loop 610.

Thanks,
Gary K5AMH
713-305-6765

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Re: [BVARC] Tailgate -- What are you bringing?

[Gary Sitton via BVARC]

I remember the work-horse Germanium 2N404 NPN transistors in the '60s. 
Yikes, haven't seen one lately!

73, Gary K5AMH


On April 14, 2022 8:08:58 AM John Mechura via BVARC  wrote:

Greetings,

What are you bringing to the BVARC Tailgate?  Post it here.

Also what might you be looking for?

I am looking for Hamsticks and my interest runs toward Boat Anchors, tubes 
and Germanium transistors.  Old stuff.


John, KI5HOC

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[BVARC] MFJ-250 "Cantenna" KW Dummy Load, Free if picked up.

[Gary Sitton via BVARC]

Hi:

   I have another KW Dummy Load now and no longer

need this one.  This basically a 200 watt, 50 Ohm. non-

reactive resistor in a  sealed and vented 1 gal. can filled

with mineral oil.  It has an SWR < 1.3:1 to 200MHz and

can take full power for short periods (< 30 Sec.) for tuning

or testing purposes.  This item is about $100 new and is

a must for any QRO station.  Has a SO-239 connector on

the top.

*Free *to good home, but must pickup in Heights area

Houston, TX 77008.


Gary Sitton, K5AMH
gasit...@comcast.net
(713) 305-6765
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Re: [BVARC] masts & towers

[Gary Sitton via BVARC]

Amen brother!

On March 31, 2022 7:05:20 AM Neal Naumann via BVARC  wrote:
If you attend any area Hamfest with an ARRL forum, John Stratton N5AUS 
(ARRL board member and civil trial attorney) will tell you that an HOA is 
no excuse for putting up an antenna.  He can feed you ammunition if there 
is an issue with your HOA.


My HOA has a vague statement about antennas 10 ft higher than the highest 
point on my house.  With that in mind and a "it's better to ask forgiveness 
than permission " attitude, for the past 20 years I have had antennas up to 
20 ft in height attached yp my chimney.   This past year I got tired of 
dealing with my extension ladder and put four sections of Motorola/ Rohn 35 
in the ground about 6 feet.  So that's about 34 feet above ground.  I 
recently came across a good deal on a Hygain TH-3JRS and I also have a 4 
element 2 meter beam side mounted.


I have never received a complaint... except for grass growing in the 
sidewalk cracks.


I also converted my 10 meter 5/8 wave Siro Toronado to a 30 meters and it's 
mounted on a 10 ft pole, so that's also about 35' to the top.  My 12 meter 
diy vertical is also at about 30 feet.  I'm working on a 60 meter vertical 
that will use an insulated push-up pole that will be about 43' high.


According to N5AUS,  all property owners in the United States are 
guaranteed the right to display Ol' Glory.  That flag pole can be 33 feet 
tall and have coax attached.


I hate stupid rules and enjoy pushing the limits.  Some people drive the 
speed limit - I never have.


For those that say "don't buy a house in a HOA"  - I challenge you to 
purchase a (decent and reasonably priced) house in the Houston area, in an 
acceptable school district, and close to work, that's not in an HOA.


73,

Neal N5EN



From: BVARC  on behalf of Jeff Greer via BVARC 


Sent: Wednesday, March 30, 2022, 3:02 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Jeff Greer 
Subject: [BVARC] masts & towers

Hi, BVARC!

I'm curious as to what others are doing for masts/towers.  I'm in an HOA 
("no antennas") with a tiny little yard.  Nobody has complained so far 
about my homebrew "DX Commander" style fan vertical, which looks like a 31' 
jackite pole (because that's pretty much what it is, with some 3d-printed 
wire spreaders).  I was holding that up w/ a 5' piece of 3/4 copper water 
pipe driven halfway into the ground.  Worked for several months, but the 
wind finally bent the pipe.  I have some 5' electrical conduit that looks a 
little tougher, but I may resort to guying.  The metal inside the bottom of 
the fiberglass pole, I suspect, interferes with my 10m element, anyway...


I'm also wanting to put my Ed Fong DBJ-1 (which looks like a 5' PVC pipe) 
up with the feedpoint 25-30'.  I picked up a couple of old tires, and I'm 
thinking of filling one with concrete (think tetherball pole) and mounting 
a couple of pieces of angle iron in the concrete, so I can drill holes, put 
some sort of mast between them, and make a "tilt over" base/hinge for the 
mast.  Has anybody built a self-supporting (non-guyed) 30 foot mast out of, 
say, some sort of stock from Home Depot/Lowe's?  The internet has lots of 
stories about using chain link fence top rail (10' sections), but most say 
that 2 of those (20') is all you join before it gets super wobbly.  Would 
love to use some sort of square tube - maybe nesting sections - but not 
sure where to get 10' sections, and not sure aluminum would be strong 
enough or steel would be light enough...


Anyway, that's where I am.  I thought I'd float this out there to benefit 
from the experience of those who have been there and done that.  Hope y'all 
can help me come up with something that will work while avoiding poor 
choices that could cause damage or hurt somebody.


Thanks!

-Jeff, W5JEF


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Re: [BVARC] EzNecis now free, a zoom session

[Gary Sitton via BVARC]

Thanks,I'll be there.
Gary, K5AMH


On March 19, 2022 2:03:06 PM john Parmalee via BVARC  wrote:
Antennas have been a special interest of mine over the years. A few years 
ago, Richard Gillette, W9PE, recently SK, got me started with MMA-ANA as it 
was an ok free antenna program. EzNec has always been the best but so 
expensive.  Now it is free to download. Simply google EzNec and download it.
It is a bit tricky to navigate at first so I am going to offer what I have 
learned in a few weeks in the form of a zoom room session. 
www.k5wh.net/zoom Monday night, 7:30 So, you can get started go ahead and 
download the free version and play with it a bit.  Hint, it comes loaded 
with a file last.ezl, that was your last file from whenever.  You can 
download any of the existing files at “OPEN”. I will show you how to make 
your own antenna modeling files.


John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ

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[BVARC] FREE Wireless Phone System...

[Gary Sitton via BVARC]

All:

FREE Panasonic wireless phone system available for local pickup only

in the Heights in Houston.  I no longer use local wired AT phone

service but have gone completely mobile!  First person gets the bag

of 8 phones, 2 base stations and all the chargers.  These are digital

2 GHz encrypted communication hand-held wireless phones with

lots of nice features.  All this seems to be in working order!

73,
Gary Sitton, K5AMH
gasit...@comcast.net
(713) 305-6765
247 W. 21st St. 77008
Houston (Heights)
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Re: [BVARC] BVARC NEWS BLAST #104 22-01-16

[Gary Sitton via BVARC]

It's in Stafford, TX at 800' I thought.
Gary, K5AMH


On January 16, 2022 7:19:59 PM Robert Polinski via BVARC  
wrote:
To those looking for the 146.940 KE5OOG repeater, I do not know where it 
is, but you are welcome to use the 146.940 KG5EEO repeater! Robert


From: BVARC  On Behalf Of Rick Hiller via BVARC
Sent: Sunday, January 16, 2022 6:59 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB ; TDXS List 


Cc: Rick Hiller 
Subject: [BVARC] BVARC NEWS BLAST #104 22-01-16

BVARC NEWS BLAST # 104- January 16, 2022


NETS
Monday Night BVARC Net -- 8 PM.  Visit with Clint, KF5HDF, NCS.
   All are welcome to check in and stay awhile (or not)
146.94 KE5OOG Repeater

Stir Crazy -- Week days daily at Noon -- various NCS stations.  146.94 repeater
 Check in, tell your story or just listen, but do check in.

80 Meter Rag Chew Net -- Wednesday 7 PM(local)  with John, K5LKJ, as NCS.
Early check-ins at 6:30
Just a chance to chew the rag for an hour or so.
3910 KHz LSB
==

Local Happenings


BVARC Beacon Newsletter -- January -- First Issue of 2022
 In your mailbox now or in color at bvarc.org.
An excellent source for BVARC club info.  K5IZO - Editor
Top notch editorial and technical content.
Featured Columns:  The Prez Says, The Radio Hotel and
   JP's Cutting Thru the Static and The Feed Point.
   Along with meeting info, eating info, BOD Minutes, FCC License 
Testing
  and local Hamfest info, plus the new 2022 Board member listing

TDXS January Meeting Notice from Doug Seyler
  Time: Jan. 20, 2021 07:00 PM Central Time
  Join Zoom Meeting at..
https://us02web.zoom.us/j/81604776785?pwd=R255OVBqRnljZFppaE1nb0RXdXlyZz09
  Meeting ID: 816 0477 6785
  Passcode: 325536

==

  Trivia for the Grey Matter

 Coaxial cable was first used in what war time setting?
A) War of 1812
   B) US Civil War
   C) Spanish American War
   D) WW I
Answer to last week's Trivia -- C) 1927 W and K were added to the existing 
call signs for hams

==
 There will be no news BLAST next week Jan 23rd.

Be curious and enjoy your hobby -- Ed.


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Re: [BVARC] N5XZ North American QSO Party, CW - January

[Gary Sitton via BVARC]

Terry, how high up is your full wave loop? I guess it's also horizontal.
Gary, K5AMH


On January 16, 2022 4:31:13 PM terry leatherland via BVARC 
 wrote:

Glad to see you are back on the air

You probably heard. I took a hidden strike the same time you did.
It took out my CAT computer control on my FT991.
Now I have a complete new station.
FTDX10  + Expert amp 1.3K  + new computer   +  2 antennas.  One Folded 
Dipole  One 40 M Full wave loop.



Terry Leatherland, K5PGF
281-455-8090
Sugar Land, Tx



On Sunday, January 16, 2022, 12:25:26 AM CST, Allen Brier via BVARC 
 wrote:



   North American QSO Party, CW - January

Call: N5XZ
Operator(s): N5XZ
Station: N5XZ

Class: Single Op LP
QTH: TX
Operating Time (hrs): 8:50

Summary:
Band  QSOs  Mults
---
 160:
  80:
  40:  38161
  20:  17957
  15:  11042
  10:   3319
---
Total:  703   179  Total Score = 125,837

Club: Texas DX Society

Team: TDXS2

Comments:

First real contest in a while. Good conditions.

Rig: K3/P3
Ant: 4el SteppIR @ 25 ft
S/W: N1MM

North American QSO Parties - CW - 2022-01-15 1800Z to 2022-01-16 0600Z - 707
QSOs
N5XZ Max Rates:

2022-01-16 0133Z - 5.0 per minute  (1 minute(s)), 300 per hour
2022-01-16 0137Z - 3.0 per minute  (10 minute(s)), 180 per hour
2022-01-15 2139Z - 2.0 per minute  (60 minute(s)), 119 per hour

N5XZ Runs >10 QSOs: for computer named: MEDIACENTER

2022-01-15 1903 - 1919Z,   14028 kHz, 35 Qs, 133.8/hr N5XZ
2022-01-15 1933 - 2012Z,   21029 kHz, 65 Qs, 100.0/hr N5XZ
2022-01-15 2041 - 2057Z,   14031 kHz, 46 Qs, 175.4/hr N5XZ
2022-01-15 2107 - 2123Z,   14034 kHz, 39 Qs, 149.4/hr N5XZ
2022-01-15 2147 - 2154Z,7031 kHz, 17 Qs, 143.0/hr N5XZ
2022-01-15 2219 - 2232Z,   28032 kHz, 27 Qs, 123.8/hr N5XZ
2022-01-16 0111 - 0125Z,7036 kHz, 23 Qs, 101.3/hr N5XZ
2022-01-16 0127 - 0137Z,7036 kHz, 32 Qs, 181.4/hr N5XZ
2022-01-16 0149 - 0154Z,7029 kHz, 14 Qs, 173.8/hr N5XZ
2022-01-16 0156 - 0204Z,7029 kHz, 18 Qs, 135.3/hr N5XZ
2022-01-16 0206 - 0218Z,7029 kHz, 26 Qs, 126.0/hr N5XZ
2022-01-16 0223 - 0259Z,7027 kHz, 67 Qs, 110.8/hr N5XZ
2022-01-16 0321 - 0331Z,7027 kHz, 15 Qs, 89.7/hr N5XZ


Posted using 3830 Score Submittal Forms at: http://www.3830scores.com/


Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801


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Re: [BVARC] Astron RS-35A FREE (but DOA)

[Gary Sitton via BVARC]

Allen:
    Most of those switchers have an MOV and a low-pass
filter on the 120 AC input.  This would be an easy fix
if that's all it is.  I would come and get it except that
Richmond is a bit of a trip.  I would like to visit your
site anyway sometime though.  Don't throw it out just
yet...
73, Gary K5AMH

On 1/8/2022 3:12 PM, Allen Brier via BVARC wrote:


I have an Astron RS-35A here that is DOA from the lightning strike. 
There might be some good spare parts in it, or you can try to fix it. 
Free for pickup. I also have a couple of computer cases and other 
junque available.


Call or email…

Allen R. Brier N5XZ

1515 Windloch Lane

Richmond, TX 77406

713-705-4801



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Re: [BVARC] The Great Harvey Wells Caper - Part 1

[Gary Sitton via BVARC]

   OK, I'm stupid but why Harvey Wells?  I actually have an
old H.W. Z-Match Balanced Tuner which I restored and plan
to use on a big loop whenever I get one up on my small lot.
I did get an O.O. notice in the '50s of severe chirp on 20
mtrs using a surplus ARC-5 transmitter.  I just ditched the
rig and got a Heath Kit VFO which was much more stable.
Later while in CA as WB6NDY in the early '70s a nearly
Ham complained of my key click on 20 mtr CW.  I fixed the
cathode keying circuit with a resistor and capacitor in my
restored old 90 watt transmitter and all was well.

73, Gary K5AMH

On 12/29/2021 10:09 AM, k5hm.ron--- via BVARC wrote:


*The Great Harvey Wells Caper*

*Part 1 – The Pink Ticket*

It was April in New York City.  I was on my way home from the regular 
weekly breakfast with the Queens County Bagel, Bowling and Spark Club.


These were the halcyon days of kid-dom on the cusp of adulthood.  I 
had my General Class ticket now for about two years.  Got my 
acceptance letter from college and it was six months before anybody 
would hear of Sputnik.   Life was good.


As I walked home from the bus stop, I was thinking about getting on 
the air today and rolling up a few new states for my WAS.  I needed 
South Dakota and my old buddy Ralph from the QCBB said there were 
only three active hams in the whole state.  I could see that South 
Dakota was going to be a real challenge.


I climbed the front steps two at a time, walked through the front door 
and headed directly for my basement ham shack.   I am halfway down the 
hall when I hear my old man say, “Where are you going?”


Any kid who has reached the age of five, immediately recognizes the 
peril in that question.  It’s not a question really, it more a 
combination of Red Alert, General Quarters and Take Cover simultaneously.


I turned around to see the old man advancing toward me.  He was upset. 
I tried to think of anything I did or failed to do in the last 
twenty-four hours. I aced my Physics quiz, took out the trash last 
night, and didn’t leave any wet towels in the bathroom, check, check, 
check.


He was about two feet away when he stopped, thrust a letter in front 
of me and said, “What’s this?”  His hand was shaking so much, I 
couldn’t read the envelope at first, but it looked very important.  
Eventually, the oscillation decayed enough for me to see better.   It 
was one of those business window envelopes with no stamp.  The top 
right-hand corner of the envelope contained the words, /U.S. 
Government Official Business!/


The old man was really wound up; like a pressure cooker ready to 
explode.  He’d lived his life avoiding entanglements with authority.  
He was 4-F for the draft in WWII, voted at least once in every 
election and was an associate member of the Police Benevolent 
Association.  Any unexpected things that had to do with “Official 
Business” made him very nervous.


Desperately, I tried to think of something that would get him in such 
a lather.  I had gotten my draft card six weeks ago.  Maybe this was 
the dreaded, “Greetings from Uncle Sam” letter.  Then I noticed the 
return address, /Federal Communications Commission, Washington, DC./


I stopped breathing.  The FCC!  This was worse than getting drafted.  
Looking through the window of the envelope I could see the paper 
inside.  A pink ticket!


The envelope was torn open.  At the top of the page, I could see the 
words, /Notice of Violation!/ He’d already read it and assumed the 
worst; a life sentence for me at Leavenworth.  I was doomed!


Flight was the only response I had.  I grabbed the letter and ran for 
the basement.  I read and re-read the notice several times.  Cold 
sweat was dripping off me.


The letter said that my signal had been observed operating at a 
frequency out of the band at such and such time and date.  It demanded 
I explain what happened. That I take immediate steps to prevent this 
from happening in the future and that I report those steps to the FCC 
within 30 days.  No wonder the old man was upset.  Single handedly, I 
had brought the wrath of the entire federal government down on our home.


I pulled out my log and started flipping pages; hoping this was a 
mistake.  Some other guy with a similar call sign, maybe.  The time in 
the letter was around 2 AM.  Was the FCC really awake that late?


I ran my thumb down the logbook pages slowly, hoping against hope.  
Yikes! There it was.  At the alleged hour, I had been on the air.  
What could I do?  “The old man was right, you’re going to Leavenworth 
“, said the voice in my head.


That night I’d logged several calls to DX stations who were calling CQ 
on the other side of the 20-meter band edge.  The last entry in the 
log that night was a guy in VK-land that I had finally managed to 
work.  I was so excited I almost woke the old man out of a sound sleep 
to tell him. I must have strayed too close to the band edge!


Maybe I’ll just throw myself on the mercy of the court. /“Your 

Re: [BVARC] Merry Christmas, Happy Hanukah and Happy New Year to everyone!

[Gary Sitton via BVARC]

Ho, Ho, Ho,  see you Thursday!

Merry Xmas, 73
Gary K5AMH

On 12/26/2021 1:53 AM, Allen Brier via BVARC wrote:


Allen R. Brier N5XZ

1515 Windloch Lane

Richmond, TX 77406

713-705-4801



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Re: [BVARC] RFI

[Gary Sitton via BVARC]

I have enough ferrite beads in my shack to sink a boat! The problem you 
have is primarily radiated RF. The final nail in the coffin here was very 
heavy chokes on the main AC sources in the shack. Every wire more that 4' 
to 6' long makes a great antenna as close as your radiators are.

Gary , K5AMH


On December 19, 2021 8:57:56 PM Jimmy Vance via BVARC  wrote:
One thing I've found with the snap on ferrite beads is to wrap the cable 
through the ferrite at least three times.   End feds are notorious for RF 
in the shack


--jv



On 12/19/2021 8:01 PM, Robert Polinski via BVARC wrote:
David, put several ferrite beads on the USB (Both ends) and the network 
cable & any other cables feeding the computer. (printer, etc) May also need 
a choke in the feedline. Robert KD5YVQ


From: BVARC  On Behalf Of David F. Reed via BVARC
Sent: Sunday, December 19, 2021 6:24 PM
To: bvarc@bvarc.org
Cc: David F. Reed 
Subject: [BVARC] RFI

Due to some HOA C, I am confined to attic and gutter antennas for the 
time being.
I am getting a bit of RFI on occasion into my PC; it manifests itself 
mainly by apparently disconnecting the com port from Commander.  When this 
happens, I can restore functionality by selecting a different com port, and 
then re-selecting the original correct com port.
I am grounded to a 10' ground rod about 8 ft. from the station via 2" 
copper strap. I did install ferrite beads on the USB cables at the back of 
the PC as well as on the power cord, and this has reduced the frequency of 
occurrence, but I would like to eliminate it altogether.

Any other ideas and suggestions would be most appreciated!
Thanks & 73 de Dave, W5SV


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Re: [BVARC] atsc-30-explained

[Gary Sitton via BVARC]

Are these the lower resolution subchannels the digital TV stations provide?
Gary K5AMH


On December 14, 2021 9:57:10 PM john Parmalee via BVARC  
wrote:

https://www.tomsguide.com/reference/atsc-30-explained


Right now Brad says:
In order to put ATSC 3/Nextgen on the air here, channels 20 and 39 had to 
basically go off the air with their ATSC 1 signals. 39.1 (The CW) is 
actually being broadcast in ATSC 1 by KPRC 2 and 20 is on their sister 
station KRIV’s transmitter now.


KIAH 39 is now carrying 2, 8, 11, 39 & 47 in ATSC 3

KTXH 20 is carrying 13, 20, 26, 45, & 67 in ATSC 3.

John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ
In a message dated 12/14/2021 7:20:26 PM Central Standard Time, 
gmuller...@aol.com writes:


What is the advantage to the new TV.



Sent via the Samsung Galaxy Note20 Ultra 5G, an AT 5G smartphone


 Original message 
From: john Parmalee via NARS 
Date: 12/14/21 5:27 PM (GMT-06:00)
To: n...@mailman.qth.net, the-woodlands-amateur-radio-c...@googlegroups.com
Subject: [NARS] Fwd: [BVARC] Houston, We Have a NextGen TV Launch


John ParmaleeJparmalee@aol.com281-380-3811 K5VGM WI2XLJ
From: bvarc@bvarc.org
To: bvarc@bvarc.org
Cc: k5...@k5bes.net
Sent: 12/14/2021 9:41:18 AM Central Standard Time
Subject: Re: [BVARC] Houston, We Have a NextGen TV Launch

Here is the encoding and monitoring setup at KPRC for ATSC 3.  The video 
flow routers are two redundant bi-directional links between KPRC & KIAH 
over two different isps.  Below is the ATSC 3 monitoring gear. In the 
yellow bag is a portable ATSC 3 field monitor. The Dell pc at the bottom is 
for control of the Sencore and Trivini  systems.   The Harmonic encoders 
are the final destination before ATSC 1 programming leaves the building. 
The Selinio is the old encoder.   The CW programming from KIAH is inserted 
here via an ip Ethernet connection to the video flow routers pictured.  
There is an ASI video link over both Microwave and leased fiber circuit to 
the transmitter site. Comcast, YouTube Tv, and AT also have fiber 
connections and use over the air as a backup. Everyone else (i.e. Dish, 
Entouch, Suddenlink, etc.) pick up only via over the air.

On Mon, Dec 13, 2021 at 21:54 JASON LAUCKNER via BVARC  wrote:
Jimmy,It is certainly moving that way. ATSC3.0 is IP based. Our facility is 
mostly SDI (serial digital- coax) based but more of it is moving to fully 
IP based processing-distribution. Our local 20 and 26 signals hit the 
encoder as SDI but it is all IP after that, right up to the transmitter 
input. 13, 45 and 48 (the other stations on the 3.0 transmitter) arrive as 
IP and are fed to the encoder that way. JasonKG5WPE
On 12/13/2021 9:09 PM Jimmy Vance via BVARC  wrote:  
Thanks Jason. Isn't pretty much all modern broadcast using AoIP and VoIP?



--jv


On 12/13/2021 8:41 PM, JASON LAUCKNER via BVARC wrote:
Attached are a couple of pictures of the 3.0 encoding/monitoring equipment 
at KRIV/KTXH.
On 12/11/2021 9:19 AM Leslie Bartosh via BVARC  wrote:   
Brad:Thank you for all the great information!73Leslie, AD5WB


On Dec 11, 2021, at 9:01 AM, Brad K5BES via BVARC  wrote:



Chris, it depends on your location. We have discovered at least with UHF 
stations that amplifies antennas often times cause a lot more problems than 
they solve, unless you are 30+ miles out from the transmitter. If you are 
here in the SW area, try non-amplified first.  KHOU is on KIAH’s RF-34 signal.

On Thu, Dec 9, 2021 at 21:23 Chris Luppens via BVARC  wrote:
I have NextGen (Samsung) TV but am on Xfinity so understand the cable 
systems can’t manage things yet so have to go over the air. Since I have 
200-ft high shot to most of the antennas I believe a small amplified 
antenna (they are very cheap) will work. Are the channels the same? Channel 
11 is 11-1 etc ?


Typos Compliments of iPhoneChris Luppens

On Dec 9, 2021, at 9:10 PM, Christopher Boone via BVARC  
wrote:






Desktop converters are still in preproduction. Not sure when they will be 
available. There are only 3 TVs that have V3, lowest cost is 900 or 
so..eventually they will drop...just like DTVs did originally

On Thu, Dec 9, 2021, 8:51 PM john Parmalee via BVARC  wrote:
Any thoughts as to how to get a tuner?  Best by blanks  At a search for ATS 
3.  I see a $1500 flat screen that I don't want. John Parmaleeat a 
Jparmalee@aol.com281-380-3811 K5VGM WI2XLJIn a message dated 12/9/2021 
4:58:28 PM Central Standard Time, bvarc@bvarc.org writes:
You'll need an ATSC 3 or NextGen TV to view it or an external tuner box 
like before, some HDTV may support a USB dongle for decode but no 
confirmationon that yet. 4k/,UHD support, better and more channels of 
audio, a 14db increase in OTA reception and rejection of noise ( goodbye to 
most pixelation!!), more channels in better definition and much more. More 
info at https://www.watchnextgentv.com/ ChrisWB5ITT
On Thu, Dec 9, 2021, 3:58 PM Ambrose E Fawcett III via BVARC 
 wrote:

What is so great about NextGen TV?  

Re: [BVARC] Radio Wanted

[Gary Sitton via BVARC]

JP, these rigs are ~$600 new so what you expect to pay?

Gary

On 12/13/2021 10:40 AM, JP Pritchard via BVARC wrote:

  Yaesu FT-891



--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."
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Re: [BVARC] AC watts to power HF transmit and receive

[Gary Sitton via BVARC]

All:
  Figure a minimum of twice the average output power + 50 watts overhead. 
My Anan 7000 SDR needs a computer and monitor which easily adds another 100 
watts. So my rig tops out at 450 watts with 100 watts out.

73, Gary K5AMH


On December 12, 2021 1:13:09 PM Mike Lambert via BVARC  wrote:

Yes, I would like to know how many watts an HF radio draws.
Mike
On 12/11/2021 4:01 PM, Christopher Boone wrote:

You mean a KWH meter like the power companies use??

On Sat, Dec 11, 2021, 3:58 PM Mike Lambert via BVARC  wrote:
Could someone use a Kill-A-Watt meter to measure the AC power required
for their HF rig to receive and transmit?

Thanks,
Mike  KI5MIK



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Re: [BVARC] End fed half Wave Long Wire 80-10 800W - for sale _ special deal

[Gary Sitton via BVARC]

Terry:
  I finally gave up on using EFHW antennas. They're fine for field day, 
etc. and for a simple multiband antenna, but the radiation patterns on the 
harmonic bands are lousy.

  So what type of antenna are you going to try next?
73, Gary K5AMH


On December 8, 2021 7:02:01 PM terry leatherland via BVARC 
 wrote:

Hi all,
I have my MFJ End fed antenna down to put up a different one. Therefore I 
have a special deal for the 1st bidder to support the BVARC 2M Repeater fund.

MFJ-1982HP, $109.95. 800 Watts, high power, 80-10 Meters, 132 feet.

The antenna is 1yr old and it worked well with 1.5SWR or less across the 
band, but its uni-directional radiation pattern doesn't suit me.

It radiates like a bat, nub on the back, all out the end. :-)
So my proposal for anyone is:
1st Ham to make a >=60$ donation after today to the BVARC Repeater fund (on 
the website) and send me the proof after this by email, I'll put it in the 
mail to you.


How's that for supporting the club?
If you need more info, call email or text me...

73s

Terry -K5 Pretty Good Fellow.

Terry Leatherland, K5PGF
281-455-8090
Sugar Land, Tx


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Re: [BVARC] Looking for a used computer monitor

[Gary Sitton via BVARC]

Wow, I never heard of this JP.  BTW, I'll not be on the net this morning. 
Still putting my vertical back together after major modifications.

73, Gary


On September 6, 2021 4:48:13 AM JP Pritchard via BVARC  wrote:

Check out the Goodwill computer store just north of 59 on Gessner. Always 
good deals there.


JP, K5JPP

Sent from my iPhone


On Sep 6, 2021, at 1:39 AM, Mark Brantana via BVARC  wrote:

If anyone happens to have a a used computer monitor of 22” or larger, that 
they might like to part with, please contact me. My old one just bit the 
dust and it is not worth buying a new one.

Mark
N5PRD

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Re: [BVARC] New HAM needs assistance tuning a Butternut HV9V Antenna

[Gary Sitton via BVARC]

I forgot to mention that I also have a NanoVNA-F but it's not very 
convenient for outdoor use. I always use it with a PC using SaveVNA rather 
than struggle with its difficult interface.

Gary K5AMH


On August 24, 2021 1:17:44 PM Gary Sitton via BVARC  wrote:
I personally like the RigExpert SWR/Impedance meters. I have an AA-55 which 
covers 6 meters, but they are a bit pricey now at $260. Something like this 
is essential for any antenna work.

73, Gary K5AMH


On August 24, 2021 11:50:31 AM Jeff Greer via BVARC  wrote:
If you don't currently have a way to analyze, you're welcome to borrow my 
nanoVNA.



From: BVARC  on behalf of Ron Bosch via BVARC 


Sent: Tuesday, August 24, 2021 11:44 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Ron Bosch 
Subject: Re: [BVARC] New HAM needs assistance tuning a Butternut HV9V Antenna
Mark,
Do you have an antenna analyzer?  I do not think it is realistically 
possible to tune that type of antenna without one.  In general, I always 
start tuning a multi-band antenna on the lowest frequency, move up, and 
then go back down.


Hope that helps,

Ron
KE4DRF

On Tue, Aug 24, 2021 at 10:52 AM JP Pritchard via BVARC  
wrote:
Have you checked for YouTube videos and perhaps a Butternut user forum? You 
might find guidance there.  Good luck.


73, JP K5JPP


Sent from my iPhone


On Aug 24, 2021, at 4:48 AM, Mark Ram via BVARC  wrote:
?
Is anyone using a Butternut HV9V antenna, preferably ground mounted with a 
radial plate ?

I have installed the antenna and would appreciate guidance on tuning it.

73,
Mark
N8YOG

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Re: [BVARC] New HAM needs assistance tuning a Butternut HV9V Antenna

[Gary Sitton via BVARC]

I personally like the RigExpert SWR/Impedance meters. I have an AA-55 which 
covers 6 meters, but they are a bit pricey now at $260. Something like this 
is essential for any antenna work.

73, Gary K5AMH


On August 24, 2021 11:50:31 AM Jeff Greer via BVARC  wrote:
If you don't currently have a way to analyze, you're welcome to borrow my 
nanoVNA.



From: BVARC  on behalf of Ron Bosch via BVARC 


Sent: Tuesday, August 24, 2021 11:44 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Ron Bosch 
Subject: Re: [BVARC] New HAM needs assistance tuning a Butternut HV9V Antenna
Mark,
Do you have an antenna analyzer?  I do not think it is realistically 
possible to tune that type of antenna without one.  In general, I always 
start tuning a multi-band antenna on the lowest frequency, move up, and 
then go back down.


Hope that helps,

Ron
KE4DRF

On Tue, Aug 24, 2021 at 10:52 AM JP Pritchard via BVARC  
wrote:
Have you checked for YouTube videos and perhaps a Butternut user forum? You 
might find guidance there.  Good luck.


73, JP K5JPP


Sent from my iPhone


On Aug 24, 2021, at 4:48 AM, Mark Ram via BVARC  wrote:
Is anyone using a Butternut HV9V antenna, preferably ground mounted with a 
radial plate ?

I have installed the antenna and would appreciate guidance on tuning it.

73,
Mark
N8YOG

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Re: [BVARC] Power Supply

[Gary Sitton via BVARC]

I use an MFJ 45A supply but replaced one of the fans with a quieter model.
Gary K5AMH

On August 11, 2021 1:39:46 AM Mark Brantana via BVARC  wrote:

I have been very happy with my MegaWatt 40 amp. Some small fan noise, though.

I bet you will run into supply issues whatever you buy, so you might want 
to get something on order soon.

Mark
N5PRD


Sent from my iPhone


On Aug 9, 2021, at 8:13 PM, Gus Bernard via BVARC  wrote:
Those Astron linears (RS Series) are bullet proof units that last forever.  
I have an ages old RS-12A that powers all the ancillary equipment on my 
desk.  It just runs, quiet and RF noise-free!


Gus
K5GMB

On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC  wrote:
I bought a small Astron RS-20A when I was first licensed in 1993 and
keep it now for taking to field day or portable. I have been using an
Astron RS-35A since around 1995 when I got into HF and was using 2
radios. It has enough power for an HF radio, satellite radio, the TNC,
and another 2m radio. I also power the ICOM CIT level converter and the
Yaesu rotor control interface for tracking satellites. Plenty of power
and has run for many years without a hiccup. I have it plugged into a
Wemo switch which allows me to turn the power on when I am not at home
and also turn the power off when I stop operating and sometimes forget
to kill the power to the power supply.

I have been very happy with the Astron products in fact, I never have to
worry about them. They are like a Timex, they just keep on ticking. Okay
for the young ones here that do not know what a Timex is ;-), like an
Eveready Bunny that never stops.

73...bruce

--

Bruce Paige, KK5DO

AMSAT Director Contests and Awards
AMSAT Board Member 2016-2022

ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE

Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes

Latest satellite news on the ARRL Audio News
http://www.arrl.org

AMSAT on Twitter http://www.twitter.com/amsat




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Re: [BVARC] A/C RFI noise

[Gary Sitton via BVARC]

Where did you put the choke and what size was it ?
Gary K5AMH


On August 9, 2021 11:53:06 AM K5BOU-Philippe via BVARC  wrote:

Hi,
Anyone can recommended a tech who know working on A/C  and RFI noise .
Currently I get bad noise trough my end-fed antenna when my A/C turn on.  
We try ferrite choke for Palomar engineering  without success.

Thanks.


K5BOU-PhilippeBoucaumont
Houston|Texas|USA|

https://mccrarymeadowsweather.com/



Virus-free. www.avg.com



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Re: [BVARC] Kenwood TS-590sg for Sale

[Gary Sitton via BVARC]

JP, does it has TCXO clock?
Gary


On August 6, 2021 3:25:38 PM JP Pritchard via BVARC  wrote:

Greetings,

  I am selling my Kenwood TS-590sg. Kenwood refers to this radio as its 
  "Pride and Joy." It provides great SSB noise mitigation, includes its own 
  sound card for digital modes, and provides remote control software. By 
  adding an inexpensive SDR, you can create your own panadapter that tracks 
  with the VFO on the radio.


I am selling it having recently purchased a new rig. If you can find a new 
TS-590sg to buy, you'll likely pay about $1400. I'm asking 900 dollars or 
best offer for local buyers only.


Call or email with questions or to make an offer. My email & phone number 
are on the BVARC roster


73, JP, K5JPP

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[BVARC] Correction/addendum to previous notice.

[Gary Sitton via BVARC]

Hi:

 Any one need a like new MFJ-993B 160-10 M (not MHz) 100/300 w.

auto-tuner?  This one goes to the first local person with $200. These

things are now over $300 (link below) new and on back order.  It does

require an external 12 VDC 1A source.

73,
Gary Sitton, K5AMH
gasit...@comcast.net
(713) 305-6765

https://www.dxengineering.com/parts/mfj-993b?seid=dxese2_source=bing_medium=cpc_campaign=DXE+Shopping+PLA_term=4581321360397690_content=MFJ+PLA


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[BVARC] Like New MFJ-993B 100/300 Auto-tuner For Sale!

[Gary Sitton via BVARC]

Hi:

 Any one need a like new MFJ-993B 160-10 MHz 100/300 w.

auto-tuner?  This one goes to the first local person with $200.

These things are now over $300 new and on back order.  It does

require an external 12 VDC 1A source.

73,
Gary Sitton, K5AMH
gasit...@comcast.net


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Re: [BVARC] roof antenna lightning strikes

[Gary Sitton via BVARC]

All:

   Read this, it's very informative. It turns out the lightning strikes
aren't always to the highest conducting object, e.g. light poles or even
metal towers.  It's all about a positive (opposite) induced charge build
up on the ground.  Lightning arresters don't necessarily cause a strike
on the top of a building but only prove a high current path to ground
to mitigate damage to the structure. Strikes often occur on parking lots
where numerous light poles exist and are Not hit. So it's all about the
amount of built up charge and not necessarily its proximity.  Lightning
damage is more like to come via your AC power lines than a direct mast
or tower strike.

    Last summer many of the electronic devices in my house were killed
due to massive strike 2 blocks from my house. I lost at repair cost of
~$2K and months of my time:
    1) The Garage door controller,
    2) All my Comcast video (not internet) boxes,
    3) One of my A/C thermostats,
    4) My Ice box ice maker controller,
    5) My kitchen disposal unit,
    6) An  Uninterrutpable AC box (UPS), and
    6) One LED light bulb.
This damage was distributed between the garage apt. and my house.
None of my Ham equipment was harmed (sheer luck?).

73, Gary

https://www.iii.org/article/lightning-safety-10-myths-and-the-facts


On 5/25/2021 11:28 PM, gmuller12103 via BVARC wrote:
Lived in Houston for 27 yrs and have a 2 mtr on the roof and beam up 
45 to 50 ft and never had a lightning  strike.




Sent via the Samsung Galaxy Note20 Ultra 5G, an AT 5G smartphone


 Original message 
From: Mike Lambert via BVARC 
Date: 5/25/21 10:35 PM (GMT-06:00)
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Mike Lambert 
Subject: [BVARC] roof antenna lightning strikes

How common are home roof antenna (12 foot or less) lightning strikes in
Houston?

How many BVARC folks have had a lightning strike on their radio (or TV)
antenna (elevation 12 foot or less) on their roof?

Is this a Stir-Crazy Net subject?

Thanks,

Mike
KI5MIK




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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

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Re: [BVARC] PL259 to SMA male connector

[Gary Sitton via BVARC]

Mike, EPO has a lot of SMA connectors and
some surplus SMA cables, but you may have to
goto BNC as an intermediate connector.
73, Gary

On 5/13/2021 12:25 PM, Mike Lambert via BVARC wrote:
I thought I would try this before going to mail order to find just one 
connector.


I need a PL259 to SMA male connector. If someone has one to sell, I 
can pick it up and pay cash.


Thanks and 73s

Mike
KI5PIY




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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

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Re: [BVARC] Flex 6400 for Sale

[Gary Sitton via BVARC]

JP, I always take great care of radios but you must compete in a market 
where used stuff is often in poor condition (electrically) but at a 
distance that's hard to appreciate.

Gary


On April 28, 2021 5:02:08 PM JP Pritchard via BVARC  wrote:
Even with cost of the warranty transfer, you would still be saving hundreds 
of dollars by purchasing a nearly new previously loved radio.


JP


Sent from my iPhone


On Apr 28, 2021, at 4:07 PM, David Hold via BVARC  wrote:
price to transfer the warranty is $89

to a buyer i would weigh the savings of not getting the full 2 year 
warranty by transfer the warranty of a used radio

vs buying new to get the full 2 year warranty.

On Wed, Apr 28, 2021 at 3:46 PM Gary Sitton via BVARC  wrote:

JP, Point out that the radio is still under warranty which may be extended 
for reasonable fee by Flex.

Gary

On April 28, 2021 3:35:57 PM JP Pritchard via BVARC  wrote:


One more offer on BVARC and then I move to sell the package on the national 
ham sites. Let me know if you’re interested.


JP, K5JPP
Raising cash. Must sell Flex Radio 6400 with Automatic Tuner & Flex 
Control, all in near-new condition (no smoking household), purchased in 
August 2020. In original boxes. This package sells new for $2447.95 plus 
$201 in sales tax. I’m offering it locally for $2100 (no tax). Cash or 
Paypal. We can meet for delivery in H town. Act quickly, before I offer it 
on the national ham sites.

73, JP Pritchard, K5JPP
Contact me directly at jppvoice at gmail.com
100W PEP HF-6m operation
All modes/all bands
Integrated Remote Operation with Maestro, PC/ Laptop, Mac, iPad® or iPhone®
2 Independent Band / Mode Receivers
Full Duplex Cross-Band Operation
Transverter Port
Receive-Only Port
Direct Sampling SDR 122.88 Msps – 16 bit
115 dB 2kHz RMDR

155 dB Dynamic Range

Optional Antenna Tuner
10 MHz Reference Input
Optional GPSDO Option for ultra high frequency precision and accuracy
Optional MARS/CAP/SHARES TX Expansion Module

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--

David Hold
david.h...@gmail.com

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Re: [BVARC] Flex 6400 for Sale

[Gary Sitton via BVARC]

JP, Point out that the radio is still under warranty which may be extended 
for reasonable fee by Flex.

Gary

On April 28, 2021 3:35:57 PM JP Pritchard via BVARC  wrote:


One more offer on BVARC and then I move to sell the package on the national 
ham sites. Let me know if you’re interested.


JP, K5JPP
Raising cash. Must sell Flex Radio 6400 with Automatic Tuner & Flex 
Control, all in near-new condition (no smoking household), purchased in 
August 2020. In original boxes. This package sells new for $2447.95 plus 
$201 in sales tax. I’m offering it locally for $2100 (no tax). Cash or 
Paypal. We can meet for delivery in H town. Act quickly, before I offer it 
on the national ham sites.

73, JP Pritchard, K5JPP
Contact me directly at jppvoice at gmail.com
100W PEP HF-6m operation
All modes/all bands
Integrated Remote Operation with Maestro, PC/ Laptop, Mac, iPad® or iPhone®
2 Independent Band / Mode Receivers
Full Duplex Cross-Band Operation
Transverter Port
Receive-Only Port
Direct Sampling SDR 122.88 Msps – 16 bit
115 dB 2kHz RMDR

155 dB Dynamic Range

Optional Antenna Tuner
10 MHz Reference Input
Optional GPSDO Option for ultra high frequency precision and accuracy
Optional MARS/CAP/SHARES TX Expansion Module

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Re: [BVARC] 2m Opening.

[Gary Sitton via BVARC]

Did you mean FM and not SSB??
Gary K5AMH


On April 27, 2021 9:45:58 AM Jeffrey Carson via BVARC  wrote:

Lots of digital and SSB on 2m right now. Give 146.52 a try if you can.

Just got Illinois twice and Georgia from my loops at 25 feet.

KF5ONT

Check propagation here. http://aprs.mennolink.org/

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Re: [BVARC] Attention all BVARCers -- Texas City Ham Fest -- July 10th

[Gary Sitton via BVARC]

Let's hope so!
Gary K5AMH


On April 27, 2021 7:46:25 AM PHILIP BARTASH via BVARC  wrote:
I'm willing to be that the turn out will be at record levels this year 
because of pent up energy.  Just my guess...


Phil
W2OZB

On 04/26/2021 10:13 PM Rick Hiller via BVARC  wrote:


One of the best little ham fests in Texas is happening on July 10th 2021.  
The world-renowned Texas City Ham Fest takes place at its' usual haunt.
Info at:  
https://www.tidelands.org/events/tidelands-texas-city-hamfest/2021-07-10/


Table and Registration form at:
https://www.tidelands.org/wp-content/uploads/2021/01/2021hamfest_reg_form.pdf

See y'all there

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Re: [BVARC] Flex 6400 for Sale

[Gary Sitton via BVARC]

That's  a good asking price.
73, Gary

On April 25, 2021 8:51:51 AM JP Pritchard via BVARC  wrote:
Raising cash. Must sell Flex Radio 6400 with Automatic Tuner & Flex 
Control, all in near-new condition (no smoking household), purchased in 
August 2020. In original boxes. This package sells new for $2447.95 plus 
$201 in sales tax. I’m offering it locally for $2100 (no tax). Cash or 
Paypal. We can meet for delivery in H town. Act quickly, before I offer it 
on the national ham sites.

73, JP Pritchard, K5JPP
Contact me directly at jppvoice at gmail.com
100W PEP HF-6m operation
All modes/all bands
Integrated Remote Operation with Maestro, PC/ Laptop, Mac, iPad® or iPhone®
2 Independent Band / Mode Receivers
Full Duplex Cross-Band Operation
Transverter Port
Receive-Only Port
Direct Sampling SDR 122.88 Msps – 16 bit
115 dB 2kHz RMDR

155 dB Dynamic Range

Optional Antenna Tuner
10 MHz Reference Input
Optional GPSDO Option for ultra high frequency precision and accuracy
Optional MARS/CAP/SHARES TX Expansion Module

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Re: [BVARC] Feedback request -- How was the Baytown EARS Swap meet?

[Gary Sitton via BVARC]

Damn, I should have gone!
Gary

On April 24, 2021 4:53:59 PM Monty Weeks via BVARC  wrote:
Hi all, I had a great time and picked up a new Mirage amplifier for less 
than half price, that is installed and I made a 46 mile contact on Simplex 
with it.  It was a blast.  Monty KI5JML


On Sat, Apr 24, 2021 at 3:05 PM Rick Hiller via BVARC  wrote:
Can anyone give a 25 word, more or less, tour of the hamfest today?

Location and set-up
Number of attendees
Commercial Vendors
Presentations, if any
etc. etc. etc...

Enquiring minds want to know, as the old saying goes

TNX  Rick   W5RH



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Re: [BVARC] Comet CHA-250B mistake

[Gary Sitton via BVARC]

Bill:

   Vertical antennas at low heights are  usually noisy, and have
a low (average) angle of of radiation. The latter is great for
DX not not so much for shorter skips. Better conditions will
help all antenna issues to some extent.  End feds operating at
a full wave length have terrible radiation pattern, e.g. zero
at zero elevation (not height above ground). End feds work
best at 1/2 wave, I guess 40 mtrs. in your case.  The successful
end fed verticals work best at odd multiples of 1/2 wave. So
you see a lot of end fed J-poles for 2m. and 75cm.  The fed
point impedance is usually set for the 1/2 wave case so the
SWR may be lowest there.

73, Gary

On 4/9/2021 4:49 PM, Bill Hornbeak via BVARC wrote:
I sadly purchased the above antenna, hoping to be able to have a 
little better reception/transmission than I currently have. My area is 
restricted, with only a backyard (20'x50') available. There's a huge 
live oak situated in the center and two feet from the fence which 
doesn't help with deployment. Ground radials are not feasible.
The antenna as per spec provides a very low SWR across all bands 
without a tuner.  There are background noises from 160m to 20m at 
which point it goes deaf and mute 17m to 6m.  On the Monday night 10m 
net I can barely hear or be heard by a HAM about 5 miles away.
So if any of you adventurous souls have a hankering to try something 
new as soon as I've replaced it (very soon) it will be available to 
try out.  Just contact me.


Notes:
1. Recommended height is 35' and I have it at 20', manufacturer's 
email (available) told me that even at 20' it should respond better.
2. Same email from the manufacturer indicated it uses the coax shield 
and recommended 50' to 100'. So I added length and found no changes.
3. Decided to try 4 radials 12' to 15' long attached just below the 
coax termination and stretched out (angled down), also resulted in no 
changes.


Bill - K5GJQ
--
vs: Habakkuk 3:17-18


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Re: [BVARC] Greetings and a question for you

[Gary Sitton via BVARC]

The Heights is in Houston and has a 75' tower height limit. The average new 
home sells for around $500k and up. There are still available 7200 sq. ft. 
empty lots or tear-downs for $300k to build on. There is ready access to 
I-10, 290 , I-45, I-59 and loop 610.

Gary K5AMH


On April 7, 2021 6:58:56 PM Scott Medbury via BVARC  wrote:
Most are heavily dead restricted. Unfortunately. You will likely need to 
look for something outside of a planned community and possibly acreage.


Otherwise you may need to look in Richmond.

73.. Scott KD5FBA


On Wed, Apr 7, 2021, 1:49 PM David F. Reed via BVARC  wrote:
Hi, Dave (W5SV) here with a question for you members...

We are moving to Sugarland  in a few months, and I am hoping to find a
home where I might be able to put up a 70' (or taller) tower.

Are there any neighborhoods you might recommend where this is possible?

Thanks and 73 de Dave, W5SV



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Re: [BVARC] A Thank You to John Stratton, ARRL West Gulf Division Director

[Gary Sitton via BVARC]

But where are th Dilithium crystals?


On April 6, 2021 10:53:14 AM Mike Hardwick via BVARC  wrote:


Here you go Mark.

https://patents.google.com/patent/US20070110208A1/en

Let me know when you finish building it.

Mike
N5VCX



On Monday, April 5, 2021, 09:40:10 PM CDT, Mark Brantana via BVARC 
 wrote:



It is really hard to keep up with technology these days. I am holding out 
for an anti-matter reactor.

Mark
N5PRD



On Apr 5, 2021, at 1:39 PM, Keith Dutson via BVARC  wrote:


Now THAT is funny! 

On Monday, April 5, 2021, 10:42:37 AM CDT, Mike Hardwick via BVARC 
 wrote:




All of this gasoline stuff and sizing problems are nothing but a headache 
when dealing with any generator. Get one of these and it will take care of 
all of those issues (you can also power the most of your street at well)!


https://www.wired.com/2007/12/toshibas-home-n/

You will have plenty of power for that Alpha amp now!

Mike
N5VCX



On Monday, April 5, 2021, 09:13:50 AM CDT, JP Pritchard via BVARC 
 wrote:



I agree with you Ron about the hassle of a DIY solution, but for those who 
might feel confident about meeting that challenge, but hesitant to take on 
a 10 to 20 thousand dollar investment in a "whole house" generator, here's 
a less expensive plan: Install a single room heat pump style air 
conditioner, and add a small fridge and microwave. Then power it with a 
small moveable generator. That set up would keep you warm or cool, keep the 
lights in your one room going and power for your fridge, microwave and TV. 
There would be a cost, but not nearly what you'd face with the Generac 
solution.


JP (Richard) K5JPP

On 04/05/2021 8:56 AM k5hm.ron--- via BVARC  wrote:


Yes, the solution N5PRD describes  was possible. We had a portable 
generator before we purchased the Generac solution.


At our age which I am guessing is more advanced, the job of pulling out the 
generator from the garage, hooking it up, testing it periodically, having 
some type of feed through connection from the generator to the fan and 
other things you want to power like the refrigerator and the upright 
freezer, storing and hunting around for fuel, going outside to refuel the 
generator in the cold dark night were also considerations


So I opted for the more automated solution. It is permanently installed by 
licensed plumbers and electricians, self-testing, automatically switches on 
whenever the utility power goes out. I have a seven year warranty on it and 
the maintenance plan too.


And I also have the satisfaction of knowing that my wife and family are 
also protected from electrical failures after I pass on.


73,
Ron, K5HM
k5hm@gmail.com
www.qrz.com/db/k5hm

   Excelsior!

From: BVARC  On Behalf Of Mark Brantana via BVARC
Sent: Sunday, April 4, 2021 11:35 PM
To: kk...@arrl.net; BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Mark Brantana 
Subject: Re: [BVARC] A Thank You to John Stratton, ARRL West Gulf Division 
Director


I just have to wonder, how Generac can justify the cost of their generator. 
That is what does not add up for me.

4kW = $250 at Home Depot
17kW=$10,000 from Generac

Looking at the chart below; from Hiller, if you want A/C included, it is 
going to take that much power.


If this is not critical, there another option could be considered:

A whole-house unit would be nice to have, but a Generac would cost about 
$120+/mo for four years. The small 4kW portable generator I bought would be 
paid for in about 2 months at that rate.


If you have gas heat, you can run the fan with the smaller unit. In this 
option you can buy all the emergency generating power you need for the cost 
of the 4kW generator I bought at Home Depot for around $250.  Add a SPDT 
switch to the fan and wiring for around $100 and the total cost is about $350.


It does not have to be Generac or nothing. Even if I had the cash, I don’t 
know if I could justify the very high $/kW. I would prefer a few more 
vacations.


I would have been very comfortable if I had just been able to run the 
heater fan.


Mark
N5PRD



On Apr 4, 2021, at 8:11 PM, Bruce via BVARC  wrote:

We had our Generac whole house generator installed in August, 2020. Our 
house is all electric. Shortly after, someone cut down a tree about a 1/2 
mile from us, it fell on a utility pole knocking out power to our entire 
street for 8 hours. The generator was great during that summer heat. Then 
came the cold of February and it worked great for 4 days. The neighbors on 
both sides of me and behind me all have generators. The $10,000 investment 
will never be recovered however, having power is wonderful. In fact, it 
cost me about $1.25 an hour in natural gas to run the generator. Could not 
be more pleased.


For those getting a generator, if you go after a Generac, be sure to watch 
their website for warranty specials. I have a 10-year warranty plus the 
first year onsite service. Paid my dealer for 5 years of onsite above that. 
Changing the oil is a piece of cake as I had to 

Re: [BVARC] Recap Friday night 's NARS meeting, 40 meter vertical, No radials

[Gary Sitton via BVARC]

Great presentation, but...notice that a 1/2 wavelength is required if by 
1/4 wave radials or a loaded 1/4 wave extention. So, choose your poison 
'cuz a 1/2 wave dipole is needed one way or the other. This approach does 
offer an attractive alternative however. Nice also to see the feed point 
impedances, bandwidth, and skin effect in coil design discussed.

73, Gary K5AMH


On March 22, 2021 9:09:11 PM Rick Hiller via BVARC  wrote:

Well done John Parmaleegreat video from W6NBC.  Thanks...Rick -- W5RH


On Mon, Mar 22, 2021 at 1:16 PM john Parmalee via BVARC  
wrote:
First I would like to thank John Portune W6NBC for the presentation  and 
his continuing leadership in the ham community.


John Spoke on a 40 meter antenna without radials he has designed.  John 
provides an number of construction tips as well the practical advantages of 
a vertical, an often misunderstood antenna,


See his presentation:  http://www.k5wh.net/Nars/Club/3-19-21

For more of the same check out W6NBC.COM

John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ



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--

Rick Hiller
e-mail: rickhille...@gmail.com
Cell:832-474-3713
Physical: 9031 Troulon Drive
  Houston, TX 77036

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Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

Rick:

   I really agree especially since I've looked into the drone motor 
controllers.

They typically emit so much onboard and radiated hash that special by-pass
precautions are taken with some of the onboard sensors, e.g. accelerometers
for orientation sensing.  I disagree that modelling software is adequate for
the typical antenna environment, e.g. antennas below a wavelength.  Also
conformation of directional antenna's front-to-back and forward gain for
optimization purposes would be nice if even perhaps extravagant.

73, Gary K5AMH

PS: Most drone controllers use the STM ARM processors for which there
is free open source drone software: https://betaflight.com/


On 3/10/2021 2:34 PM, Rick Hiller via BVARC wrote:

Comment:  Is an FSD applicable?

Although an FSD would provide a close-in Far Field pattern of an 
antenna antenna installation, which is very cool indeed.  Is it really 
necessary in the world of Ham Radio?


We already have antenna modeling software based on the NEC which is 
quite accurate, depending on the set up parameters provided, of 
course.   That model analysis provides us with a pattern and a fair 
amount of operational information.


But what do we (I) really want?  I want to know what and how my 
antenna is performing in the real world outside of my QTH.   Is it 
getting to Europe or VK?   When is the best time and frequency to get 
to Japan or South Africa?   Questions like this are not to be answered 
by a FSD.


What we really need is a world wide system to detect our signals 
wherever they may occur.  So let's start thinking of that.  We just 
need a few hams on every continent to participateWait!  Not so 
fast...there is already a system that does this.  WSPR   and it is 
available from a local amateur radio dealer -- SOTA Beams 
*_https://www.sotabeams.co.uk/wsprlite-classic 
. _*    QST Dec 2018 
even has a review of this system.
*_https://www.sotabeams.co.uk/content/QSTREVIEW.pdf 
 _*


Now look, I am not poo pooing the FSD concept , ideas, discussion, 
etc.   Very cool indeed to get a group of folks excited and discussing 
antenna stuff.   Woo Hoo!  I'm all for it, being the antenna phreak 
that I am.   I'm just taking a step back and seeing if it is 
necessary, practical or even applicable for Hams.   Plus, maybe some 
don't know about WSPR.


73...Rick -- W5RH


 
	Virus-free. www.avast.com 
 




On Wed, Mar 10, 2021 at 1:57 PM Jeffery MacMillian via BVARC 
mailto:bvarc@bvarc.org>> wrote:


Here is a good paper on this very topic.


https://www.narda-sts.com/en/selective-emf/srm-3006-field-strength-analyzer/eID/pd/pdce/9063/pdfr/9500/



have Fun,
Jeff
KC5TT




On Wed, Mar 10, 2021 at 1:31 PM Tom Watson via BVARC
mailto:bvarc@bvarc.org>> wrote:

Brilliant!

On Wed, Mar 10, 2021, 12:22 AM Mark Brantana via BVARC
mailto:bvarc@bvarc.org>> wrote:

OK, what is an FSD? It is a Field Strength Drone. It’s an
idea I am sure others have had, and I don’t expect to get
around to designing or patenting such a thing. But
inventions are often just the merging of new technologies,
and this is not much different. I don’t see any YouTubes
about this or any other reference, so here’s the idea:

With all the capabilities of little drones I wonder if
anyone has designed one which can carry a field strength
meter and fly a grid around an antenna to evaluate antenna
performance. The guts of my little Radio Shack FSM would
have weighed way less than an ounce.

Ideally, the field strength meter could communicate to the
base through the drone transmitter, reducing weight.
Software at the base could link the drone 3D location data
with the FS reading. The drone would have to wait at test
locations for the operator to transmit, and ideally would
move to the next location. Finally, the software might be
able to link with existing simulation software for
comparison with theory and allow for simulation model
improvement. This looks like it would take a small team to
develop.

This sounds like it would have many uses besides antenna
evaluation, like RFI evaluation.

What about it? Has anyone done this?

Mark
N5PRD

Brazos Valley Amateur 

Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

The more advanced 3 phase PM motor controllers are virtually noiseless and 
generate amplitude controlled smooth sine waves and not pulses.

Gary

On March 10, 2021 12:43:40 PM Gary Sitton via BVARC  wrote:

Excellent idea to have some distance between the antenna and the noisy drone.
Gary


On March 10, 2021 10:55:34 AM Rick Hiller  wrote:

Hang the FS pod below the drone by 10 feet or more.   By Experimental 
determination.   Get it away from the noise’s near field.

RH

Sent from my i-Thingamajig


On Mar 10, 2021, at 10:35 AM, Mark Brantana  wrote:

What do you feel their price range is?
Mark
N5PRD


Sent from my iPhone


On Mar 10, 2021, at 10:06 AM, Rick Hiller  wrote:

field strength measurements using drones



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Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

Excellent idea to have some distance between the antenna and the noisy drone.
Gary


On March 10, 2021 10:55:34 AM Rick Hiller  wrote:

Hang the FS pod below the drone by 10 feet or more.   By Experimental 
determination.   Get it away from the noise’s near field.

RH

Sent from my i-Thingamajig


On Mar 10, 2021, at 10:35 AM, Mark Brantana  wrote:

What do you feel their price range is?
Mark
N5PRD


Sent from my iPhone


On Mar 10, 2021, at 10:06 AM, Rick Hiller  wrote:

field strength measurements using drones



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Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

Nizar is right, those drone motors are 3 phase permanent magnet, brushless 
DC motors with PWM controllers which are very noisy. This would require 
sophisticated noise canceling software as well as hardware mitigation.

Gary


On March 10, 2021 9:21:33 AM Nizar Mullani  wrote:
Make sure the Drone electronics is quiet enough to not interfere with the 
Field Strength Measurements.

Nizar K0NM


On Mar 10, 2021, at 9:13 AM, Mark Brantana via BVARC  wrote:
Considering you can buy a small drone with a camera for less than $100, an 
amateur FSD could cost less than $200.

https://bunnytags.com/products/mini-hd-camera-drone-pocket-quadcopter-remote-controlled-for-kids?utm_medium=cpc_source=google_campaign=Google%20Shopping=USD=EAIaIQobChMIoamGyYCm7wIVUb7ACh1nAA5OEAQYCyABEgIkAvD_BwE

Sent from my iPhone


On Mar 10, 2021, at 9:05 AM, Gary Sitton via BVARC  wrote:
Super great idea!
Gary, K5AMH


On March 10, 2021 12:22:18 AM Mark Brantana via BVARC  wrote:

OK, what is an FSD? It is a Field Strength Drone. It’s an idea I am sure 
others have had, and I don’t expect to get around to designing or patenting 
such a thing. But inventions are often just the merging of new 
technologies, and this is not much different. I don’t see any YouTubes 
about this or any other reference, so here’s the idea:


With all the capabilities of little drones I wonder if anyone has designed 
one which can carry a field strength meter and fly a grid around an antenna 
to evaluate antenna performance. The guts of my little Radio Shack FSM 
would have weighed way less than an ounce.


Ideally, the field strength meter could communicate to the base through the 
drone transmitter, reducing weight. Software at the base could link the 
drone 3D location data with the FS reading. The drone would have to wait at 
test locations for the operator to transmit, and ideally would move to the 
next location. Finally, the software might be able to link with existing 
simulation software for comparison with theory and allow for simulation 
model improvement. This looks like it would take a small team to develop.


This sounds like it would have many uses besides antenna evaluation, like 
RFI evaluation.


What about it? Has anyone done this?

Mark
N5PRD

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Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

Add two antennas for polarization measurements also.
Gary

On March 10, 2021 12:22:18 AM Mark Brantana via BVARC  wrote:

OK, what is an FSD? It is a Field Strength Drone. It’s an idea I am sure 
others have had, and I don’t expect to get around to designing or patenting 
such a thing. But inventions are often just the merging of new 
technologies, and this is not much different. I don’t see any YouTubes 
about this or any other reference, so here’s the idea:


With all the capabilities of little drones I wonder if anyone has designed 
one which can carry a field strength meter and fly a grid around an antenna 
to evaluate antenna performance. The guts of my little Radio Shack FSM 
would have weighed way less than an ounce.


Ideally, the field strength meter could communicate to the base through the 
drone transmitter, reducing weight. Software at the base could link the 
drone 3D location data with the FS reading. The drone would have to wait at 
test locations for the operator to transmit, and ideally would move to the 
next location. Finally, the software might be able to link with existing 
simulation software for comparison with theory and allow for simulation 
model improvement. This looks like it would take a small team to develop.


This sounds like it would have many uses besides antenna evaluation, like 
RFI evaluation.


What about it? Has anyone done this?

Mark
N5PRD

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Re: [BVARC] Building an FSD

[Gary Sitton via BVARC]

Super great idea!
Gary, K5AMH


On March 10, 2021 12:22:18 AM Mark Brantana via BVARC  wrote:

OK, what is an FSD? It is a Field Strength Drone. It’s an idea I am sure 
others have had, and I don’t expect to get around to designing or patenting 
such a thing. But inventions are often just the merging of new 
technologies, and this is not much different. I don’t see any YouTubes 
about this or any other reference, so here’s the idea:


With all the capabilities of little drones I wonder if anyone has designed 
one which can carry a field strength meter and fly a grid around an antenna 
to evaluate antenna performance. The guts of my little Radio Shack FSM 
would have weighed way less than an ounce.


Ideally, the field strength meter could communicate to the base through the 
drone transmitter, reducing weight. Software at the base could link the 
drone 3D location data with the FS reading. The drone would have to wait at 
test locations for the operator to transmit, and ideally would move to the 
next location. Finally, the software might be able to link with existing 
simulation software for comparison with theory and allow for simulation 
model improvement. This looks like it would take a small team to develop.


This sounds like it would have many uses besides antenna evaluation, like 
RFI evaluation.


What about it? Has anyone done this?

Mark
N5PRD

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Re: [BVARC] About the NanoVNA

[Gary Sitton via BVARC]

Ditto, here Mark. I love mine also.
73, Gary K5AMH


On March 7, 2021 10:51:57 PM Mark Brantana via BVARC  wrote:
Someone had asked about the NanoVNA model I purchased. I don’t mind sharing 
the invoice. There is no confidential information here. I got mine from 
R, and it is the larger 4” screen. The 2 1/2 inch screen would have been 
too small. Mine came with all three calibration caps, and some flexible 
adaptors so you really don’t have to keep connecting to (and potentially 
damaging) the fittings on the VNA. It came with a USB adapter to port to a 
computer and a charger cord to charge from the computer. It also came with 
a handy colored function map.


Mine came with a cross-threaded 50 ohm calibrator, but they made good on it 
quickly, so I think their customer service and the product are pretty good.


I love learning about Smith Charts. I am learning that the professional 
world talks in terms of db loss, not SWRs, but the VNA does both. This is 
really helpful for me in studying for the Extra.


Watch a few videos, learn to calibrate (every time), try a few things, and 
you are generally good to go.


Mark
N5PRD



Begin forwarded message:

From: Mark Brantana 

Subject: new doc 2021-03-07 21.43.50

Date: March 7, 2021 at 9:45:46 PM CST

To: n5...@yahoo.com



Scanned with CamScanner
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Re: [BVARC] Frys

[Gary Sitton via BVARC]

Doug:

ACE Electronics, https://ace4parts.com/ near
the Katy highway.  They have a wide variety
of components and parts both surplus and
new.

73, Gary K5AMH



On 2/25/2021 9:48 AM, Doug Seyler via BVARC wrote:


Who is ACE?

Doug W9LCQ

*From:*BVARC [mailto:bvarc-boun...@bvarc.org] *On Behalf Of *Gary 
Sitton via BVARC

*Sent:* Wednesday, February 24, 2021 1:14 PM
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB
*Cc:* Gary Sitton; Christopher Boone
*Subject:* Re: [BVARC] Frys

Also EPO, ABR and ACE are still here.

Gary

On February 24, 2021 12:46:40 PM Jeffrey Carson via BVARC 
 wrote:


Micro Center is still there. Very crowded though.

On Wednesday, February 24, 2021, 09:23:23 AM CST, Christopher
Boone via BVARC  wrote:

NewEgg.com for PC stuff is who I use

On Wed, Feb 24, 2021, 9:19 AM John Mechura via BVARC
mailto:bvarc@bvarc.org>> wrote:

So, what are the alternatives now, Best Buy?  e-bay?

What do you guys recommend?

On Wed, Feb 24, 2021 at 9:15 AM mark janzer via BVARC
mailto:bvarc@bvarc.org>> wrote:

Darn, they had the cheapest prices on stone wave microwave
egg cookers...

:(

On Wednesday, February 24, 2021, 09:12:15 AM CST,
Christopher Boone via BVARC mailto:bvarc@bvarc.org>> wrote:

They are closed as of this morning according to the website

:(

Chris

WB5ITT

On Wed, Feb 24, 2021, 9:07 AM John Mechura via BVARC
mailto:bvarc@bvarc.org>> wrote:

As you say, no surprise, they're just following Radio
Shack's lead.

John, KI5HOC

On Wed, Feb 24, 2021 at 8:53 AM JP Pritchard via BVARC
mailto:bvarc@bvarc.org>> wrote:

No surprise. Frys is closing all of its locations
nationwide.

K5JPP, JP

Sent from my iPhone


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Re: [BVARC] Frys

[Gary Sitton via BVARC]

Also EPO, ABR and ACE are still here.
Gary

On February 24, 2021 12:46:40 PM Jeffrey Carson via BVARC  
wrote:


Micro Center is still there. Very crowded though.

On Wednesday, February 24, 2021, 09:23:23 AM CST, Christopher Boone via 
BVARC  wrote:



NewEgg.com for PC stuff is who I use

On Wed, Feb 24, 2021, 9:19 AM John Mechura via BVARC  wrote:
So, what are the alternatives now, Best Buy?  e-bay?

What do you guys recommend?


On Wed, Feb 24, 2021 at 9:15 AM mark janzer via BVARC  wrote:

Darn, they had the cheapest prices on stone wave microwave egg cookers...

:(

On Wednesday, February 24, 2021, 09:12:15 AM CST, Christopher Boone via 
BVARC  wrote:



They are closed as of this morning according to the website

:(

Chris
WB5ITT

On Wed, Feb 24, 2021, 9:07 AM John Mechura via BVARC  wrote:
As you say, no surprise, they're just following Radio Shack's lead.

John, KI5HOC


On Wed, Feb 24, 2021 at 8:53 AM JP Pritchard via BVARC  wrote:
No surprise. Frys is closing all of its locations nationwide.

K5JPP, JP

Sent from my iPhone


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Re: [BVARC] BVARC Digest, Vol 132, Issue 13

[Gary Sitton via BVARC]

Sounds like a choke, not a balun, huh?
Gary, K5AMH


On February 14, 2021 10:23:36 PM Mark Brantana via BVARC  
wrote:



Allen
Perhaps 20 ft of RG-213 would be ideal for a 6-8” D x 6-8 turns as 
suggested by MFJ. I could use something less, but I am hoping to keep every 
db I can.

Mark

Sent from my iPhone


On Feb 14, 2021, at 6:57 PM, Allen Brier via BVARC  wrote:

Mark, how much do you need? I have lots of short pieces here.

Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801

-Original Message-
From: BVARC  On Behalf Of bvarc-requ...@bvarc.org
Sent: Sunday, February 14, 2021 12:00 PM
To: bvarc@bvarc.org
Subject: BVARC Digest, Vol 132, Issue 13

Send BVARC mailing list submissions to
   bvarc@bvarc.org

To subscribe or unsubscribe via the World Wide Web, visit
   http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
   bvarc-ow...@bvarc.org

When replying, please edit your Subject line so it is more specific than
"Re: Contents of BVARC digest..."



Message: 1
Date: Sat, 13 Feb 2021 17:06:04 -0600
From: Mark Brantana 
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Subject: [BVARC] Coax Cable
Message-ID: <1c9e705f-52ea-4aca-87b9-620f8b1f0...@gmail.com>
Content-Type: text/plain;charset=us-ascii

Who sells 50 ohm coax cable in the Sugar Land area?
Mark
N5PRD



--



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Re: [BVARC] Coax Cable

[Gary Sitton via BVARC]

Air core will be bigger and have a narrow band coverage, and can't easily 
be used in high moisture conditions or outside.

Gary, K5AMH


On February 14, 2021 3:01:35 AM Mark Brantana via BVARC  
wrote:
Thanks to everyone. I was deciding between making an air core balun and a 
toroid type.

Mark
N5PRD


Sent from my iPhone


On Feb 13, 2021, at 6:35 PM, Travis Burgess via BVARC  wrote:
EPO is on Fondren between Westpark and Richmond Ave.

Travis
K5HTB


From: BVARC  on behalf of Gary Sitton via BVARC 


Sent: Saturday, February 13, 2021 6:06 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gary Sitton 
Subject: Re: [BVARC] Coax Cable
EPO on Fondren at I-69 sometimes has some Wilson 400 available.
Gary, K5AMH


On February 13, 2021 5:06:21 PM Mark Brantana via BVARC  
wrote:



Who sells 50 ohm coax cable in the Sugar Land area?
Mark
N5PRD


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Re: [BVARC] Coax Cable

[Gary Sitton via BVARC]

EPO on Fondren at I-69 sometimes has some Wilson 400 available.
Gary, K5AMH


On February 13, 2021 5:06:21 PM Mark Brantana via BVARC  
wrote:



Who sells 50 ohm coax cable in the Sugar Land area?
Mark
N5PRD


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[BVARC] Metaltech Hoist Post/Gin Pulley Kit — 250-Lb. Capacity, Model# M-MHAP

[Gary Sitton via BVARC]

Ok, enough of the joke already


https://m.northerntool.com/shop/tools/product_200498848_200498848?cm_mmc=Google-LIA_source=Google_LIA_medium=Construction%20%3E%20Scaffolding_campaign=Metaltech_content=21861=Cj0KCQiA0-6ABhDMARIsAFVdQv8qbtD55kU6hmhrAUWXGjsmMbTn24hDCtEjn2Pl4bqET5BN6UYB56oaAonCEALw_wcB=aw.ds

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Re: [BVARC] Gin Pole

[Gary Sitton via BVARC]

Are you serious??? Look it up!


On February 3, 2021 6:24:12 PM Ron Litt via BVARC  wrote:

What's a gin pole? Is that like a gin fizz? Just add club soda.

On Wed, Feb 3, 2021, 15:09 Gus Bernard via BVARC  wrote:
Hi, folks.  I'm ready to install my Rohn 25 35' tower (10' sections).  Does 
anyone have a gin pole I can borrow?  Or, know anyone who has a gin pole?  
Thanks,


Gus, K5GMB



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Re: [BVARC] Surplus Ham stuff...

[Gary Sitton via BVARC]

Yes I know, but they're too expensive.
Gary

On 2/3/2021 9:45 AM, Larry K5LJ via BVARC wrote:
MFJ sell individually all the variable capacitors and inductors used 
in their equipment – check their catalog.

*From:* Gary Sitton via BVARC
*Sent:* Wednesday, February 3, 2021 9:07 AM
*To:* Allen Brier via BVARC
*Cc:* Gary Sitton
*Subject:* [BVARC] Surplus Ham stuff...

Allen:

   I would like to get some high voltage variable tuner

caps. and air coils for tuner repair/mods.  I have some

balanced tuners which I would to beef up to 1.5 KW.

Three (3) position Delta coax switches are also nice

and assorted ferrites are always  needed.  I can make

a trip to pickup or inspect if needed and will pay for

premium stuff.

73,
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."



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--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

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[BVARC] Surplus Ham stuff...

[Gary Sitton via BVARC]

Allen:

   I would like to get some high voltage variable tuner

caps. and air coils for tuner repair/mods.  I have some

balanced tuners which I would to beef up to 1.5 KW.

Three (3) position Delta coax switches are also nice

and assorted ferrites are always  needed.  I can make

a trip to pickup or inspect if needed and will pay for

premium stuff.

73,
Gary Sitton, K5AMH
gasit...@comcast.net 
SDR/DSP Consultant,
"Have FFTs, Will Travel."


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Re: [BVARC] multiport DP9

[Gary Sitton via BVARC]

Any passive RS232 port splitter must divide the active TX source to two RX 
inputs, but can't negotiate multiple sources. Thus, if only a single TX 
source is needed and allowed, it should work.  It's sorta like an RS232 hub 
as apposed to a switch.

Gary


On February 1, 2021 2:52:55 PM JP Pritchard via BVARC  wrote:

A question for our BVARC IT gurus…

I need to have two signaling paths to and from a transceiver, that only has 
a single db9 port. Can I connect for band change signals with the amp and a 
SteppIR controller by using a multiport DB9 splitter at the DB9 port on the 
radio? Is it a passive process, or does it require a powered multi-DB9 
splitter. https://www.amazon.com/db9-splitter/s?k=db9+splitter


I’ll appreciate any help or suggestions you can offer.

73, JP, K5JPP

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Re: [BVARC] Palomar Engineering End Fed and DIY Delta Loop

[Gary Sitton via BVARC]

Mike, I have just started using it and have no idea
what the pattern looks like.  It's probably a mix of
horizontal and vertical polarization with a medium
angle of radiation.  I also suspect that the highest
power is broadside to the wire as most are.  The
noise level is not bad and the signal levels seem
to be fairly good also.  I just wanted an antenna
with 40 meter capability for shorter skip QSOs.

73, Gary

On 1/28/2021 12:47 PM, Michael Giannaccio via BVARC wrote:

Thanks Gary!

I had that antenna on my list as well. I'd love to know what kind of 
radiation pattern you think you might have.




--
73,

Mike Giannaccio
KI5LFZ


On Thursday, January 28, 2021, 11:23:39 AM CST, Gary Sitton via BVARC 
 wrote:



Mike:

    I just installed a MyAntenna EFHW 40-10-2K wire antenna.  I chose
the 40 to 10 model as I do not use 160 or 80 meters.  It is hung in an
inverted V configuration: the center at 30' and ends at about 10' from
the ground. The total length was about 63' and the final SWR was less
than 1.5:1 on the the phone bands except for 10 meters where it was
2:1.  The modeI got was designed for 1.5 KW peak and seems to be
of excellent construction.  There is a 7:1 UNUN included in the package
but I did not examined it.  I would be glad to discuss any other details.

73, Gary K5AMH
(713) 305-6765

1/28/2021 9:45 AM, Michael Giannaccio via BVARC wrote:
Does anyone have any experience with this product: 
https://palomar-engineers.com/ferrite-application-experts-2/Bullet-End-Fed-500-1500-Watt-Antenna-1-8-61-MHz-55-203-FT-p74356626 
<https://palomar-engineers.com/ferrite-application-experts-2/Bullet-End-Fed-500-1500-Watt-Antenna-1-8-61-MHz-55-203-FT-p74356626>


Or this product: 
https://www.hyendcompany.nl/antenna/multiband_40201510_m/product/detail/2/HyEndFed_4_Band_Black_Clamp_MK3#prod 
<https://www.hyendcompany.nl/antenna/multiband_40201510_m/product/detail/2/HyEndFed_4_Band_Black_Clamp_MK3#prod>



An end fed antenna is the best fit for my property. I can easily run 
the 71 foot model as either an inverted L sloper or as a regular 
sloper. The highest point will be 18-20 feet and the low point will be 
around 6-7 feet.


I have a few questions about this antenna as well making a DIY 20 
meter delta loop. If anyone is willing to give me a few minutes of 
your time to pick your brain off this thread that would be much 
appreciated.




--
73,

Mike Giannaccio
KI5LFZ


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org  <mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org  
<http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org>


--
Gary Sitton, K5AMH
gasit...@comcast.net <mailto:gasit...@comcast.net>
SDR/DSP Consultant,
"Have FFTs, Will Travel."

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org <mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org 
<http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org>



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Re: [BVARC] Palomar Engineering End Fed and DIY Delta Loop

[Gary Sitton via BVARC]

Mike:

    I just installed a MyAntenna EFHW 40-10-2K wire antenna.  I chose
the 40 to 10 model as I do not use 160 or 80 meters.  It is hung in an
inverted V configuration: the center at 30' and ends at about 10' from
the ground.  The total length was about 63' and the final SWR was less
than 1.5:1 on the the phone bands except for 10 meters where it was
2:1.  The modeI got was designed for 1.5 KW peak and seems to be
of excellent construction.  There is a 7:1 UNUN included in the package
but I did not examined it.  I would be glad to discuss any other details.

73, Gary K5AMH
(713) 305-6765

1/28/2021 9:45 AM, Michael Giannaccio via BVARC wrote:
Does anyone have any experience with this product: 
https://palomar-engineers.com/ferrite-application-experts-2/Bullet-End-Fed-500-1500-Watt-Antenna-1-8-61-MHz-55-203-FT-p74356626 



Or this product: 
https://www.hyendcompany.nl/antenna/multiband_40201510_m/product/detail/2/HyEndFed_4_Band_Black_Clamp_MK3#prod 




An end fed antenna is the best fit for my property. I can easily run 
the 71 foot model as either an inverted L sloper or as a regular 
sloper. The highest point will be 18-20 feet and the low point will be 
around 6-7 feet.


I have a few questions about this antenna as well making a DIY 20 
meter delta loop. If anyone is willing to give me a few minutes of 
your time to pick your brain off this thread that would be much 
appreciated.




--
73,

Mike Giannaccio
KI5LFZ


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



--
Gary Sitton, K5AMH
gasit...@comcast.net
SDR/DSP Consultant,
"Have FFTs, Will Travel."

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Re: [BVARC] Antenna wire?

[Gary Sitton via BVARC]

Yeah, 7075 is expensive stuff.
Gary


On December 22, 2020 7:59:42 PM Jonathan Guthrie via BVARC 
 wrote:
If I remember my structural design class properly, 6061 is the alloy, T6 is 
the treatment.


We mostly looked at 2024 and 7075.

On 12/21/20 1:28 AM, Gary Sitton via BVARC wrote:
Ron, this work hardens the wire and removes the normal annealing. This can 
be done with most soft metals: copper, silver, brass, but not aluminum 
which must heat tempered like 6061-T6.


Gary

On December 20, 2020 9:57:30 PM Rick Hiller via BVARC  wrote:

Ron,

One way that I found to pre-stretch wire before putting it up is to anneal 
it.  Cut it to length or a bit longer.  Tie one end to a fixed point and 
then at the other end wrap it around a hammer handle a few times then walk 
backward till the wire is tight.  Then holding the hammer to your chest, 
lean backward to stretch the wire...not enough to break it but enough to 
stretch it and make it stay at this final length.   I built delta loops for 
many years out of solid copper wire that I got surplus and did this with 
all of the installations and they remained one size for a long time.


GLrick  W5RH


On Sun, Dec 20, 2020 at 3:02 PM Ron Bosch via BVARC  wrote:
Mark,
Assuming copper clad or copper wire, anything above 21 AWG is fine for any 
freq greater than 160M from a skin effect standpoint.  After that it is all 
about tensile strength vs ductility.  Too ductile and it will sag. too 
brittle and it will part.  The first three HF antennas, including my 135' 
random, I built were made from some 16 G PVC coated copper power wire I had 
500' of from an outdoor power run for security cameras.  They all worked, 
but the wire stretches under strain, so about every month I have to pull it 
tight.  Eventually this will make it part.  I bought 500' of #14 stranded 
PVC coated wire from Palomar Engineers because I fell in love with it after 
using 50' of it on an end-fed coil loaded EmComm antenna I built.  Once the 
outdoor sprinkler power wire parts, I will rebuild the antennas with the PE 
wire.


Ron
KE4DRF


On Sun, Dec 20, 2020 at 2:33 PM Mark Brantana via BVARC  
wrote:
Is there some correlation for transmission power and frequency vs wire gage 
required? Or is it essentially all about structural stability?

Mark
N5PRD



On Dec 15, 2020, at 12:11 PM, john Parmalee via BVARC  wrote:

Consider #17 electric fence wire.  Take two  or three strands and twist 
them together with one end clampied in a vice or something and the other 
end in the chuck of a hand drill.  it will shrink so oversize.

 It is chap,Find it at Tractor Supply or on line.

John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ
In a message dated 12/14/2020 8:37:10 PM Central Standard Time, 
bvarc@bvarc.org writes:


This is link to wire I got and I am VERY impressed with these guys for 
help. It is stranded and insulated.


https://palomar-engineers.com/tech-support/tech-topics/ferrite-tutorials/search?keyword=antenna%20wire




From: BVARC  On Behalf Of Rick Hiller via BVARC
Sent: Monday, December 14, 2020 8:13 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Rick Hiller ; Mark Janzer ; KJ 
Anderson 

Subject: Re: [BVARC] Antenna wire?

I’d lean toward insulated.  Keeps inter-strand noise at a minimum.  135 
feet—- 14 awg stranded at min.   Alpha Delta uses 14 solid for their fan 
dipoles.  So either way works, depending on how it is deployed.

Wireman, DX Eng and others.
GL.  Rick. RH
Sent from my i-Thingamajig

On Dec 14, 2020, at 7:31 PM, Mark Janzer via BVARC  wrote:
Check out:

https://thewireman.com/product-category/antenna-materials/antenna-wire/

Flex weave is nice.


On Dec 14, 2020, at 4:31 PM, KJ Anderson via BVARC  wrote:

I need input.  I want to build an additional 40M EFHW, I’m wondering if the 
group has input or guidance on the best kind of wire to use for the long 
wire?  It appears that the antenna manufacturers are happy to sell me 
“high-grade antenna wire” that is nothing more than regular 14AWG wire I 
could get literally anywhere for much less; my question is- has anyone 
tried anything more exotic?  Is there a flavor of wire that works 
better/worse for antennas?


I appreciate you all.

~~
73 de KJ5EMP
kj5...@arrl.net
KJ in Cypress


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Re: [BVARC] Antenna wire?

[Gary Sitton via BVARC]

Ron, this work hardens the wire and removes the normal annealing. This can 
be done with most soft metals: copper, silver, brass, but not aluminum 
which must heat tempered like 6061-T6.


Gary

On December 20, 2020 9:57:30 PM Rick Hiller via BVARC  wrote:

Ron,

One way that I found to pre-stretch wire before putting it up is to anneal 
it.  Cut it to length or a bit longer.  Tie one end to a fixed point and 
then at the other end wrap it around a hammer handle a few times then walk 
backward till the wire is tight.  Then holding the hammer to your chest, 
lean backward to stretch the wire...not enough to break it but enough to 
stretch it and make it stay at this final length.   I built delta loops for 
many years out of solid copper wire that I got surplus and did this with 
all of the installations and they remained one size for a long time.


GLrick  W5RH


On Sun, Dec 20, 2020 at 3:02 PM Ron Bosch via BVARC  wrote:
Mark,
Assuming copper clad or copper wire, anything above 21 AWG is fine for any 
freq greater than 160M from a skin effect standpoint.  After that it is all 
about tensile strength vs ductility.  Too ductile and it will sag. too 
brittle and it will part.  The first three HF antennas, including my 135' 
random, I built were made from some 16 G PVC coated copper power wire I had 
500' of from an outdoor power run for security cameras.  They all worked, 
but the wire stretches under strain, so about every month I have to pull it 
tight.  Eventually this will make it part.  I bought 500' of #14 stranded 
PVC coated wire from Palomar Engineers because I fell in love with it after 
using 50' of it on an end-fed coil loaded EmComm antenna I built.  Once the 
outdoor sprinkler power wire parts, I will rebuild the antennas with the PE 
wire.


Ron
KE4DRF


On Sun, Dec 20, 2020 at 2:33 PM Mark Brantana via BVARC  
wrote:
Is there some correlation for transmission power and frequency vs wire gage 
required? Or is it essentially all about structural stability?

Mark
N5PRD



On Dec 15, 2020, at 12:11 PM, john Parmalee via BVARC  wrote:

Consider #17 electric fence wire.  Take two  or three strands and twist 
them together with one end clampied in a vice or something and the other 
end in the chuck of a hand drill.  it will shrink so oversize.

 It is chap,Find it at Tractor Supply or on line.

John Parmalee
jparma...@aol.com
281-380-3811
K5VGM WI2XLJ
In a message dated 12/14/2020 8:37:10 PM Central Standard Time, 
bvarc@bvarc.org writes:


This is link to wire I got and I am VERY impressed with these guys for 
help. It is stranded and insulated.


https://palomar-engineers.com/tech-support/tech-topics/ferrite-tutorials/search?keyword=antenna%20wire




From: BVARC  On Behalf Of Rick Hiller via BVARC
Sent: Monday, December 14, 2020 8:13 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Rick Hiller ; Mark Janzer ; KJ 
Anderson 

Subject: Re: [BVARC] Antenna wire?

I’d lean toward insulated.  Keeps inter-strand noise at a minimum.  135 
feet—- 14 awg stranded at min.   Alpha Delta uses 14 solid for their fan 
dipoles.  So either way works, depending on how it is deployed.

Wireman, DX Eng and others.
GL.  Rick. RH
Sent from my i-Thingamajig

On Dec 14, 2020, at 7:31 PM, Mark Janzer via BVARC  wrote:
Check out:

https://thewireman.com/product-category/antenna-materials/antenna-wire/

Flex weave is nice.


On Dec 14, 2020, at 4:31 PM, KJ Anderson via BVARC  wrote:

I need input.  I want to build an additional 40M EFHW, I’m wondering if the 
group has input or guidance on the best kind of wire to use for the long 
wire?  It appears that the antenna manufacturers are happy to sell me 
“high-grade antenna wire” that is nothing more than regular 14AWG wire I 
could get literally anywhere for much less; my question is- has anyone 
tried anything more exotic?  Is there a flavor of wire that works 
better/worse for antennas?


I appreciate you all.

~~
73 de KJ5EMP
kj5...@arrl.net
KJ in Cypress


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org

Re: [BVARC] Antenna wire?

[Gary Sitton via BVARC]

All:

Uninsulated Copper wire will oxidize over time forming a dark oxide layer
on the wire.  Copper oxide (CuO) is an electrical conductor but with higher
resistance than Copper.  Since the skin depth at higher frequencies is very
thin, 0.001'' or less, and is a function of bulk resistivity, a CuO 
layer on the

bare Copper conductor will increase it's resistance.  Using an insulated
wire also cause an additional local permittivity increase thus adding some
addition capacitance thus shortening the wire length which is required at
any given frequency.  So IMHO, use PVC insulated stranded wire if possible.

73, Gary K5AMH

On 12/20/2020 3:01 PM, Ron Bosch via BVARC wrote:

Mark,
Assuming copper clad or copper wire, anything above 21 AWG is fine for 
any freq greater than 160M from a skin effect standpoint.  After that 
it is all about tensile strength vs ductility.  Too ductile and it 
will sag. too brittle and it will part.  The first three HF antennas, 
including my 135' random, I built were made from some 16 G PVC coated 
copper power wire I had 500' of from an outdoor power run for security 
cameras.  They all worked, but the wire stretches under strain, so 
about every month I have to pull it tight. Eventually this will make 
it part.  I bought 500' of #14 stranded PVC coated wire from Palomar 
Engineers because I fell in love with it after using 50' of it on an 
end-fed coil loaded EmComm antenna I built.  Once the outdoor 
sprinkler power wire parts, I will rebuild the antennas with the PE wire.


Ron
KE4DRF

On Sun, Dec 20, 2020 at 2:33 PM Mark Brantana via BVARC 
mailto:bvarc@bvarc.org>> wrote:


Is there some correlation for transmission power and frequency vs
wire gage required? Or is it essentially all about structural
stability?
Mark
N5PRD


On Dec 15, 2020, at 12:11 PM, john Parmalee via BVARC
mailto:bvarc@bvarc.org>> wrote:

Consider #17 electric fence wire.  Take two  or three strands and
twist them together with one end clampied in a vice or something
and the other end in the chuck of a hand drill.  it will shrink
so oversize.
It is chap,Find it at Tractor Supply or on line.
John Parmalee
jparma...@aol.com 
281-380-3811
K5VGM WI2XLJ
In a message dated 12/14/2020 8:37:10 PM Central Standard Time,
bvarc@bvarc.org  writes:

This is link to wire I got and I am VERY impressed with these
guys for help. It is stranded and insulated.



https://palomar-engineers.com/tech-support/tech-topics/ferrite-tutorials/search?keyword=antenna%20wire







*From:* BVARC mailto:bvarc-boun...@bvarc.org>> *On Behalf Of *Rick Hiller
via BVARC
*Sent:* Monday, December 14, 2020 8:13 PM
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB mailto:bvarc@bvarc.org>>
*Cc:* Rick Hiller mailto:rickhille...@gmail.com>>; Mark Janzer
mailto:k5...@yahoo.com>>; KJ Anderson
mailto:kj5...@arrl.net>>
*Subject:* Re: [BVARC] Antenna wire?


I’d lean toward insulated.  Keeps inter-strand noise at a
minimum.  135 feet—- 14 awg stranded at min.   Alpha Delta
uses 14 solid for their fan dipoles.  So either way works,
depending on how it is deployed.

Wireman, DX Eng and others.

GL. Rick. RH

Sent from my i-Thingamajig


On Dec 14, 2020, at 7:31 PM, Mark Janzer via BVARC
mailto:bvarc@bvarc.org>> wrote:

Check out:



https://thewireman.com/product-category/antenna-materials/antenna-wire/




Flex weave is nice.



On Dec 14, 2020, at 4:31 PM, KJ Anderson via BVARC
mailto:bvarc@bvarc.org>> wrote:


I need input.  I want to build an additional 40M
EFHW, I’m wondering if the group has input or
guidance on the best kind of wire to use for the long
wire?  It appears that the antenna manufacturers are
happy to sell me “high-grade antenna wire” that is
nothing more than regular 14AWG wire I could get
literally anywhere for much less; my question is- has
anyone tried anything more exotic?  Is there a flavor
of wire that works better/worse for antennas?


I appreciate you all.


~~

73 de KJ5EMP

kj5...@arrl.net 

KJ in Cypress



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org 

Re: [BVARC] NanoVNA (Vector Network Analyzer) Presentation by Alan Wolke, W2AEW

[Gary Sitton via BVARC]

I bought and have been using a NanoVNA-F for months now and swear buy it.
Gary, K5AMH


On November 19, 2020 12:35:14 PM Gus Bernard via BVARC  wrote:
Below is the Video Link and related information for Wednesday, Nov 18 Zoom 
presentation: NanoVNA presentation



 Topic: NanoVNA (Vector Network Analyzer)
 Speaker:  Alan Wolke, W2AEW http://www.qrz.com/db/W2AEW

Viewing: https://vimeo.com/481077181
Download: https://vimeo.com/user107547861/download/481077181/271487d76c
Documents:  
https://www.dropbox.com/sh/rx5f81jw29232gr/AACimwxlG5cISvRCj6Yf_Psya?dl=0


Please feel free to share this and our other presentations with your 
friends, clubs and organizations

Send presentation comments and suggestions to ratpac.p...@gmail.com
Note: Comments and suggestions will be reviewed by our RATPAC planning 
committee.


Best of 73's --- Stay safe.

Dan Marler, K7REX
ratpac.p...@gmail.com


On Thu, Nov 19, 2020 at 9:02 AM Gus Bernard  wrote:
Soon as I get the link for the recording (and the PDF from Alan) I'll pass 
it along on this thread.


BTW, I highly recommend his YouTube Channel, which I've been subscribed to 
for years.  I've watched more than half of is 300+ videos and there's a 
little bit in there for anyone interested in the electronics part of ham 
radio.  He is (or was) a field applications engineer for Tektronix, and 
just looking at all the test gear on his bench makes you salivate like Tim 
"The Toolman" Taylor.




What sets him apart is his ability to present in a clear, complete and 
methodical manner with great hand-made diagrams.  It's well worth perusing 
his video playlists.




73,
Gus KG5OFB


On Thu, Nov 19, 2020 at 1:48 PM Rick Hiller via BVARC  wrote:
Gus has the “in” with this club.   They said they would make it available 
today.   It is certainly a presentation not to miss.   This cat is good.

Gus!   Whatchugot?


Sent from my i-Thingamajig

On Nov 19, 2020, at 7:00 AM, Steve Agee via BVARC  wrote:

Was this able to be recorded and archived for later viewing? I had a Board 
meeting with another group at the same time as this presentation.

N5ZUA

On 11/18/2020 2:48 PM, Gus Bernard via BVARC wrote:
Today's Wednesday, November 18 RATPAC (Dan Marler, K7REX) Zoom presentation 
will be on the NanoVNA (Vector Network Analyzer) @ 8:00 PM CST


Topic: NanoVNA (Vector Network Analyzer)
Presenter: Alan Wolke, W2AEW http://www.qrz.com/db/W2AEW  Many of you will 
know Alan from his QST articles and many YouTube videos.



Join Zoom Meeting
https://us02web.zoom.us/j/2128884758?pwd=bDZOd1BvdU45cVpQc1FkVXNIL21EQT09

Meeting ID: 212 888 4758
Passcode: NanoVNA

Brazos Valley Amateur Radio Club BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Re: [BVARC] OT: Cable modem and router recommendations

[Gary Sitton via BVARC]

The newer high speed Motorola cable modem will be much better than the one 
you have now.  I have the same model and plan an upgrade soon. Do NOT rent 
a Comcast modem, they are junk!!

73, Gary K5AMH

On October 12, 2020 1:58:21 PM Allen Brier via BVARC  wrote:
I am starting to have service dropouts every afternoon (weird) with Comcast 
and am thinking maybe I need to replace may more than a decade old cable 
modem and router. I currently have a Motorola SUFboad SB6141 cable modem 
and a Netgear N900 Dual Band Gigabit router. I seem to have these dropouts 
between noon and 3pm every day. Anyone else having this problem with Comcast?


Anyway I think maybe it is time to upgrade my equipment so looking for 
recommendations.


Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801


Virus-free. www.avg.com



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org

Re: [BVARC] Amplifier

[Gary Sitton via BVARC]

Jeff, you're correct about old used linear amps.  It might just be
better to get a used Ameritron amp with the cheaper 3-500s
or 811s in the finals.  They will have all of the modern features
that one needs these days.  I've been very happy with my AL-80B
for five years now, but cheaper used Ameritrons are available
for sure.
73, Gary K5AMH


On 8/31/2020 11:46 AM, Jeffrey Carson via BVARC wrote:
I currently own an sb200 and 221 from craigslist. Be aware, when you 
buy one of these older amplifiers they do require modification to 
interface with modern radios. You need to know how to open and read 
schematics to install the soft key modules. Also, be prepared to 
replace the power supply board and the caps as these are major fail 
points of these amps. So yes, I got my sb200 for $250 but had to put 
another 200ish into it and lots of time to make it what I really 
wanted. This puts it right at where a modern al-811 will be on the 
used market. Just food for thought. Dont go buying a $250 amp on 
craigslist and think its "turn key" and wont need work. You may get 
lucky and get good tubes as I did, but 572b tubes are not cheap like 
811s and i'm just now looking at RF parts they seem to be out as well 
as other sites.


Also, these were "kits" brand new. So it also comes down to who 
assembled it. My 200 was nicely done, the 221 was not so nice.


Jeffrey
KF5ONT

On Monday, August 31, 2020, 01:30:49 AM CDT, Andy via BVARC 
 wrote:



I run a 55 year-old SB-200 I got for $250.
It does about 600W out, and is awesome in pileups.
The seller even included a pair of spare output tubes.
Very happy...

Andy W5ACM

-Original Message-
From: BVARC [mailto:bvarc-boun...@bvarc.org 
] On Behalf Of Rick Hiller via BVARC

Sent: Sunday, August 30, 2020 7:20 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB >
Cc: Rick Hiller >; n...@mailman.qth.net 
; Martin Blaise >

Subject: Re: [BVARC] Amplifier

As stated multiple times before. FL 2100b. 2 for sale in town. $350 
SB200’s on line >$300


600 watt amps easily.


> On Aug 30, 2020, at 5:10 PM, Martin Blaise via BVARC 
mailto:bvarc@bvarc.org>> wrote:

>
> I think I’ve asked before but are there any smaller hf amps that do
> like maybe 300 watts. I know this sounds bad but the pandemic killed
> most of my ham radio budget. I cannot afford $1,500 for equipment. Any
> suggestions? Thanks 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org 
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org



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Re: [BVARC] Comment: the Current Virtual Hamfest

[Gary Sitton via BVARC]

Dummy loads don't radiate RF, only heat!
Gary, K5AMH


On August 9, 2020 8:12:33 AM Nizar Mullani via BVARC  wrote:

Does the the permitted radiated power limit for hams apply to dummy loads?

Nizar K0NM.


On Aug 8, 2020, at 10:16 PM, Chris Luppens via BVARC  wrote:
Could actual location make a difference. Pieces are in different countries.


Typos Compliments of iPhone
Chris Luppens



On Aug 8, 2020, at 10:12 PM, Rick Hiller via BVARC  wrote:
Hamfest is pretty good so far.I did notice on the Expert Amplifier 
video that they demo'd the 1.5K amp into a dummy load, of course, and they 
got 1500 watts out on 30 meters (10 MHz).


1500 on 30   Not sure they knew what they were doing.

RH



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Re: [BVARC] Off topic - has anyone been successful in turning off the Google Ads on their computer

[Gary Sitton via BVARC]

Use the "duckduckgo" search engine!!

On 5/23/2020 8:49 AM, Bill Holden via BVARC wrote:
I use an ad blocker. Mine is called Ad Blocker Plus. You install it 
into your browser. You might be able to find it in browser extensions 
or download it directly. Hope this helps!


Bill
W5JAZ

On Sat, May 23, 2020 at 8:03 AM John Chauvin via BVARC 
mailto:bvarc@bvarc.org>> wrote:


This is a popular subject when I Google it.  However none work.  I
tried Bing, since I'm sure that Google has no incentive to give
info on how to suppress their ads.  Nothing there works either.

Please let me know how you succeeded.

Tnx es 73
de John

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Re: [BVARC] Time will not stay synched - any one have team viewer or similar?

[Gary Sitton via BVARC]

There's a nice Windows app to do that sync to < 1 sec.
Gary, K5AMH


On May 8, 2020 10:34:08 AM Jimmy Vance via BVARC  wrote:
You want you time as close to correct as possible.  As long as the decodes 
are 1 second or less you should not have an issue with making the contact  
Once you get past -18 or so it's a crapshoot on if they hear you or not


On 5/7/2020 8:14 PM, Martin Blaise via BVARC wrote:
Question when using ft8 and ft4 and you go to time.is and it does NOT say 
your time is exact, how much does that hurt your chances of not completing 
a contact? Say you are off by 0.2 seconds. Is that close enough? I have a 
very old desktop running windows 10. Run wsjt-x 2.1.2. Isn’t it more about 
the dB level? I’ve had reports of 00 and reports of -22. Just trying to 
figure out if synch is critical.


On Thu, May 7, 2020 at 7:34 PM Robert Polinski via BVARC  
wrote:
I have a Dell laptop, the CMOS battery went dead. It was under the hard 
drive, easy to replace, but you have to use one that fits the computer. On 
desktops most can be replaced with no tools once you get to the 
motherboard, but some are soldered in place and may require more effort to 
change.


From: BVARC  On Behalf Of David Hold via BVARC
Sent: Thursday, May 07, 2020 6:59 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: David Hold 
Subject: Re: [BVARC] Time will not stay synched - any one have team viewer 
or similar?


Windows & Mac OS
Sync time to internet server

https://www.windowscentral.com/how-manage-time-servers-windows-10


https://www.macinstruct.com/node/92





On Thu, May 7, 2020 at 6:46 PM DAVID ELY via BVARC  wrote:
Every computer has a CMOS battery. The first sign that the battery needs to 
be replaced is the loss of accuracy of your computer's clock.
On desktop computers, it is a button battery on the motherboard anf is 
easily replaced.



On Thursday, May 7, 2020, 6:28:33 PM CDT, Martin Blaise via BVARC 
 wrote:



My computer clock will not stay synched. I have tried downloading Meinberg 
and Net Time and other softwares but none of them works. Is there anyone 
out there who has team viewer or something similiar who could see what I 
have set up wrong? I have tried many times to troubleshoot this and still 
can't get it to synch. Dimension 4 doesn't work either. I need help to find 
out where I messed up the computer. Thanks and sorry to ask for help.



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Re: [BVARC] Need antenna build advice

[Gary Sitton via BVARC]

The J pole I got gave the closest feed impedance to 50 Ohms (@ 146 MHz) 
when the four radials were exactly perpendicular to the radiator. When 
testing any antenna, keep conductive objects at least a wave length or more 
away from the radiator.

Gary, K5AMH



On April 22, 2020 6:39:13 AM Jonathan Guthrie via BVARC  
wrote:
I don't think there's a difference between one conductor and another except 
for a slight difference in efficiency.  The problem with a JPole is that 
there are three separate bits that can need adjustment (the length of the 
radiator, the length of the quarter-wave stub, and the position of the 
feedpoint on that stub) and if you don't adjust the right one, you'll get 
poor results.

On 4/21/2020 2:52 PM, ralph phillips via BVARC wrote:
Having problems with my home brew 440 mhm jpole...will not tune better than 
a SWR 1.9.  Books and articles no help.  Will velocity factor or resistance 
change dimensions for steel vs aluminum??


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Re: [BVARC] Need antenna build advice

[Gary Sitton via BVARC]

A VNA would answer all of these questions.
G.

On 4/21/2020 3:45 PM, Rick Hiller via BVARC wrote:
1.9 :1 across the whole band?   Is actual z lower or higher than 50 
ohms?   Is it resonant where you wish or somewhere else?


GL.  Rick.  RH

Sent from my i-Thingamajig

On Apr 21, 2020, at 3:23 PM, SETX Telecom via BVARC > wrote:


Not enough to make a difference...did you adjust the matching? It can 
vary...just like a gamma match, etc..


On Tue, Apr 21, 2020, 2:52 PM ralph phillips via BVARC 
mailto:bvarc@bvarc.org>> wrote:


Having problems with my home brew 440 mhm jpole...will not tune
better than a SWR 1.9.  Books and articles no help.  Will
velocity factor or resistance change dimensions for steel vs
aluminum??

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Re: [BVARC] Need antenna build advice

[Gary Sitton via BVARC]

Ralph:
No, any reasonably conductive metal will have a free space
velocity factor of 1.0.  However, putting conductive objects
very near to a metal wire or tube or rod will change this.
Also, any insulation on a wire will reduce the velocity factor.
I just bought a nanoVNA-F vector network analyzer for
$100 which will sort all of these tuning issues out quickly.
Sorry about the quarantine or I'd get you a hand with
this, but I'm hunkered down for the next few weeks here.
Does there seem to be a low SWR point somewhere near
to your operating frequency.  The minimum SWR point
and the resonant frequency are generally not the same
but should be close enough for rough tuning purposes.
Gary, K5AMH

On 4/21/2020 2:52 PM, ralph phillips via BVARC wrote:
Having problems with my home brew 440 mhm jpole...will not tune better 
than a SWR 1.9.  Books and articles no help.  Will velocity factor or 
resistance change dimensions for steel vs aluminum??


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