Re: [Elecraft] Magnetic Loop question

[Fred Jensen]

On 10/19/2016 6:42 PM, Phillip Lontz wrote:

Are mag loop antennas very directional?


Yes


Are mag loop antennas a little directional?


Yes, more than a little


Are mag loops kinda directional?


The fwd lobe [in the plane of the loop] is very broad, very hard to 
discern the peak, so it really doesn't matter.  The null [orthogonal to 
the plane of the loop] is very sharp, very noticeable.  It can be used 
to null QRN/QRM, provided of course that the QRN/QRM is located in 
exactly that direction.  Fortunately, because the fwd lobe is so broad, 
this actually does work fairly regularly.


K2-AlexLoop


So which one?


See above.  I think I missed the original post [been really busy for a 
retired puke], looks like the thread drifted off the question.


73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org


Phil
K5SSR

What me worry?


On Oct 19, 2016, at 9:42 AM, Richard Fjeld  wrote:

This is a follow up to recent post from someone in California who
noticed less output when operating in below freezing temps.

In the thread that followed, I mentioned the relationship of cold to
gain and biasing to prevent
thermal runaway.  My last ARRL Handbook is a 2009 edition and 'Thermal
Runaway' can be found
in the index.  You may find it interesting.

Dick, n0ce

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Re: [Elecraft] Magnetic Loop question

[W5RDW]

Here is Pixel's info on their loop antenna.

http://www.universal-radio.com/catalog/sw_ant/6142dia.jpg 



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Re: [Elecraft] Magnetic Loop question

[Charlie T, K3ICH]

Horizontally mounted No
Vertically mounted.Yes, in the plane of the loop (off the ends NOT
perpendicular to the loop.)

Chas
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Phillip Lontz
Sent: Wednesday, October 19, 2016 9:43 PM
Cc: Elecraft Reflector 
Subject: [Elecraft] Magnetic Loop question

Are mag loop antennas very directional?
Are mag loop antennas a little directional?
Are mag loops kinda directional?
So which one?
Phil
K5SSR

What me worry?

> On Oct 19, 2016, at 9:42 AM, Richard Fjeld  wrote:
> 
> This is a follow up to recent post from someone in California who 
> noticed less output when operating in below freezing temps.
> 
> In the thread that followed, I mentioned the relationship of cold to 
> gain and biasing to prevent thermal runaway.  My last ARRL Handbook is 
> a 2009 edition and 'Thermal Runaway' can be found in the index.  You 
> may find it interesting.
> 
> Dick, n0ce
> 
> --
> 
> 
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[Elecraft] Magnetic Loop question

[Phillip Lontz]

Are mag loop antennas very directional?
Are mag loop antennas a little directional?
Are mag loops kinda directional?
So which one?
Phil
K5SSR

What me worry?

> On Oct 19, 2016, at 9:42 AM, Richard Fjeld  wrote:
> 
> This is a follow up to recent post from someone in California who 
> noticed less output when operating in below freezing temps.
> 
> In the thread that followed, I mentioned the relationship of cold to 
> gain and biasing to prevent
> thermal runaway.  My last ARRL Handbook is a 2009 edition and 'Thermal 
> Runaway' can be found
> in the index.  You may find it interesting.
> 
> Dick, n0ce
> 
> -- 
> 
> 
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[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Hello Lyle, Jim and Ignacy and others,
Thanks for all your valuable advice.
Hong Kong is small and good for Electric Vehicles.   The population of EV has 
increased from 100 to now around 7000 in 5 years time.  Regrettably, 
installation of chargers at condominium car parks is still a uphill battle.
In fact, in terms of number of EV per km of roads, Hong Kong is the highest 
among the Asia Pacific.
73
Johnny VR2XMC

  寄件人︰ Lyle Johnson 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年10月19日 (週三) 11:41 PM
 主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
   
Hello Johnny!

You may need some filtering on the 12V power connector in the center 
console of the Model S.  The 12V battery is also quite small in the 
vehicle.  I'd be inclined to package an LiFePO4 battery pack and a 
charger for it and place it in the center console area, powering the 
mobile rig from the LiFePO4 pack.  That will give you surge capacity for 
higher power should you desire it, probably make any necessary 12V noise 
filtering easier and limit the stress on the 12V system in the Model S.

For antenna mounting, you might consider adding a trail hitch adapter, 
and then mount the mobile antenna to that, using its bonding to prevent 
possible damage or modification to your vehicle.  In the U.S., such a 
hitch is made by Torklift (www.torkliftcentral.com then click through 
Ecohitch and Tesla Model S) and seels for under $400 plus shipping and 
installation. It is invisible when not in use.  I know a couple of Model 
S owners here in Tucson that have these hitches and are satisfied with 
their quality and durability.

73,

Lyle KK7P


On 10/19/16 7:45 AM, Johnny Siu via Elecraft wrote:
> Thanks Bill.  The fuse in the cigarette lighter is 15A.  I think only a 50 W 
> amplifier is workable.
> 73
> Johnny VR2XMC
>
>        寄件人︰ Bill Frantz 
>  收件人︰ Johnny Siu 
> 副本(CC)︰ Elecraft Reflector 
>  傳送日期︰ 2016年10月19日 (週三) 10:15 PM
>  主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
>    
> On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via
> Elecraft) wrote:
>
>> I am thinking operating my KX3 in my Tesla and have some questions:
>> 1.  Is it ok to direct drain DC supply from the cigarette
>> lighter socket since there is no ignition system in the Tesla?
> You will be drawing less than 4 amps, so the lighter socket
> should work fine. If you decide to add the 100W amp, then
> running dedicated wires will probably be the correct choice. I
> would want to know more about the 12V supply in the Tesla before
> running them. Perhaps the car manual has some advice.
>
>
>> 2.  The body of Tesla is aluminium alloy (if I am correct.
>>  How can I ground a mobile whip to the car body?
> Grounding techniques should be the same as for steel. Do be
> aware of the corrosion issues when different metals are in
> contact. Aluminium corrodes easily, so having a sacrificial
> piece of metal to protect the car body may be a good idea.
> Perhaps a piece of aluminum bonded to the car body with copper
> or brass bonded to it. (My electro-chemistry is a bit rusty.)
> Then that piece of aluminum will corrode and can be easily
> replaced. Also think about the materials for any screws/bolts
> used for the bonding.
>
> 73 Bill AE6JV

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[Elecraft] K3 as Half a Satellite Station

[Richard Lawn]

I'm new to this group, a steadfast KX3 user and recently acquired a K3 and
P3. I've been on the satellites for many years and recently started using 2
radios controled by SatPC32 software - one radio for uplink and another for
downlink using converters. I decided to experiment with the K3 and P3 for
the downlink side. It worked like a charm when 2 meters was the downlink (I
should add that I'm using preamps for both bands placed at the antenna).
Most of the satellites, but not all, use 70 cm for uplink and 2m for down.
I then decided to try sending the output of both down converters, through
relays switching, to the K3 transverter input. Only one band at a
time would be selected by the relays and the other sent to the uplink
radio. I tired using a Daiwa duplexer to accomplish this and I tried a
simple splitter. For some reason this messed everything up and it seemed
like the preamps were totally ineffectual, especially the 70cm preamp. I've
been scratching my head to understand why this isn't working. This could be
a wonderful satellite station using the K3 and P3 with or without the
external monitor card for downlink. What am I missing?

73
Rick, W2JAZ
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Re: [Elecraft] [KX3] Re: Magnetic loop antenna for the KX3

[Bob Nielsen]

Another possibility for portable operation is the SuperAntenna MP-1.  I 
don't know if the current MP-1 is any different from the original W6MMA 
version but I had good results with my Elecraft edition (which had the 
coil painted the same color as my K2). Perhaps the color made a 
difference.  I took it with me on a vacation trip to northeast France 
and worked around 20 countries on three continents on 20 meters from my 
hotel room, including A6, 3V, OH0, EW, 9A.  The MP-1 was sitting on a 
counter next to the window of the room with about a 15' counterpoise 
laying on the floor.


73, Bob N7XY


On 10/18/16 6:00 PM, Brian Chapnick brianchapn...@rogers.com [KX3] wrote:

Reading the mail in this group always makes me realize how little I know.

In the last year since getting back on the air after at least 25 years 
absence I have used a Buddistick, Par End Fed quad, and the Alpha 
Antenna coaxial mag loop. They all have worked for me. By far the Par 
End Fed Quad is the easiest to operate with. I didn't even have to 
fiddle with  cutting the tuning stubs. The Alpha Antenna Loop also is 
very easy to set up and tune. I have been very successful with it on 
40 meters from a second floor bedroom. The Buddistick is the most 
finicky to set up but it also has performed well for me but I use it 
the least. In all I have had contacts in 29 countries,  worked 45 
states on 40 meters, and 34 on 20 meters. I have done this with my kX3 
using CW, SSB, PSK , RTTY  and a few on JT65, never going above 10 
watts, usually at 5 and some even at 1. I even spoke with a chap 
flying at 35k feet in a 737 on USB and what a thrill that was. Funny 
how I've never had a contact with someone using a KX3 on the other 
end. As for software I use HRD and Win4K3. Both have their strengths 
and weaknesses.


All I can say is this is a fun hobby for everyone at all levels of 
expertise. It isn't hard to make contacts so long as you are patient 
and don't have unrealistic expectations. You guys that are a lot 
smarter than guys like me are an inspiration for where I can be if I 
set my mind to it. Thank you!


Brian VE 3GMZ

Sent from my BlackBerry Priv the most secure mobile device - via the 
Rogers Network

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Re: [Elecraft] KAT500 altered behaviour

[Jack Brindle]

Gary;

Be sure that the K3 is still set to output the data to the KAT500 over the 
Auxbus. 
On the K3, go to the KAT1 menu and tap the [1] button to toggle this setting on 
or off. If it has accidentally
been reset to Off, you won’t get the info from the K3. This procedure is better 
described on page 17
of the latest KAT500 manual.

Hope you get it going quickly! If not, we will do our best to make it happen.

73!

- Jack, W6FB


> On Oct 18, 2016, at 10:53 PM, Gary Gregory  wrote:
> 
> Got an interesting anomaly with KAT500 #007
> 
> Without making any changes to settings, cables, movement of equipment,
> AuxBus or RS232 cables etc, it now has stopped "following" on QSY.
> Band changes are working, first Dit will set tune to stored memory, checked
> the KAT500 utility, boxes for QSY/Tune on Auto and Manual are ticked.
> Manual and Auto tune works as expected and apart from the QSY feature I am
> at a loss to see what has changed other than the obvious, not following the
> VFO. Oh, and yes, I am on the correct VFO
> Reloaded previous saved config, no change.
> Any ideas anyone?
> Gary
> -- 
> 
> 
> 
> *Gary - VK1ZZ, K3NHLSkype: Gary.VK1ZZhttp://www.qsl.net/vk1zz
> Motorhome Portable*
> *Miss Behavin'*
> 
> 
> *Elecraft K3KPA500FT  #18KAT500FT  #007*
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[Elecraft] Elecraft's Great Access

[Nolan Kienitz]

I always roll through the comments on this reflector and the Yahoo site … just 
so I can continue to learn more about my K3 and future K-Line.

 

I consider this access excellent and most certainly appreciate Eric and Wayne’s 
participation as well as others from Elecraft. This is simply excellent access 
to the owners/founders of Elecraft. As well as all who participate and offer 
extraordinary expertise.

 

I no longer have a Yaesu or Kenwood and have never owned an Icom. Nor have I 
participated in their reflectors. I’m not sure that those companies have the 
“direct access” that is made available to us here at the Elecraft Reflector.

 

I appreciate such access and candor from Eric and Wayne and others at Elecraft.

 

I also think I have a great K3 (released/assembled only 2 weeks before the K3S 
was announced).

 

I also keep adding modules/updates and have on my wish list a P3, KAT500 and 
KPA500.

 

One step at a time as this retired person can afford.

 

73,

Nolan Kienitz  KI5IO

SKCC - 9532C

NAQCC - 6230

FISTS - 14948

 

 

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[Elecraft] Configuring K3S for Heil Mic (or dynamic vs. electret)

[w2id]

Hi Carl, 

If your mic requires bias voltage, then when you go into the microphone 
selection menu on the K3S (tap Menu, then rotate VFO B to select "MIC SEL", 
then rotate VFO A to select the desired mic input jack(s) (you already did this 
step), THEN press the number "2" on the K3s front panel number keypad, which 
will alternately toggle the microphone bias voltage on and off. 

This instruction is buried/hidden in the manual - it does NOT appear on the 
page where it should appear, i.e. where the MIC SEL menu option is explained. 
I was planning to make a documentation improvement suggestion to Elecraft at 
some point about this, but I didn't get around to it yet. It took me a very 
long time to find it in the manual. 

73, 

John W2ID 
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Re: [Elecraft] operating HF / KX3 in a Tesla Model S

[Walter Underwood]

The manual for the MFJ-4403 says to run CW at 75 W or less.

http://www.mfjenterprises.com/Product.php?productid=MFJ-4403 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Oct 19, 2016, at 11:02 AM, Jim Brown  wrote:
> 
> On Wed,10/19/2016 10:46 AM, Ignacy wrote:
>> With line conditioner from MFJ one can easily use the receptacle with 100W
>> radio. The conditioner has super capacitors and averages 20-25A peak in the
>> radio to about 7A-10A in the receptacle. Much simpler and cheaper than
>> running dedicated wires.
> 
> Perhaps for SSB, but maybe not for CW. I like Lyle's idea of an LiFePO4 
> battery, which could be recharged from the lighter plug with a suitable 
> charge controller.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] operating HF / KX3 in a Tesla Model S

[Jim Brown]

On Wed,10/19/2016 10:46 AM, Ignacy wrote:

With line conditioner from MFJ one can easily use the receptacle with 100W
radio. The conditioner has super capacitors and averages 20-25A peak in the
radio to about 7A-10A in the receptacle. Much simpler and cheaper than
running dedicated wires.


Perhaps for SSB, but maybe not for CW. I like Lyle's idea of an LiFePO4 
battery, which could be recharged from the lighter plug with a suitable 
charge controller.


73, Jim K9YC

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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[n6hz]

Hi Brian, 

The PX3 encoder interface was changed in revision 1.25 (4/17/2015).  This
change greatly enhanced the operation of the select knob encoder.  If you're
experiencing severe 'jerkiness' of the encoder, it's usually a sign that the
encoder is bad.   It would however be interesting to see what your PX3 would
do with older firmware.  Email me directly if you'd be interested in trying
that out.  My email is pauls at you know where dot com.

-Paul 



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Re: [Elecraft] operating HF / KX3 in a Tesla Model S

[Ignacy]

With line conditioner from MFJ one can easily use the receptacle with 100W
radio. The conditioner has super capacitors and averages 20-25A peak in the
radio to about 7A-10A in the receptacle. Much simpler and cheaper than
running dedicated wires.
Ignacy, NO9E  



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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[n6hz]

Hi Jim, 

It sounds to me like your encoder is bad.  You will either need to send your
PX3 back to Elecraft for repair or contact Elecraft for a replacement
encoder (if you would like to do the work yourself).   Please contact
Elecraft support directly.  They can be reached via email at:  k3support at
you know where dot com. 

Kindly, 

Paul




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Re: [Elecraft] Heil Pro 7 K3s Setup

[Carl Jón Denbow]

Thanks, Matt.  Problem solved.  Actually, it wasn't a problem.  I had 
the display setup to show CMP and ALC when I thought it was showing SWR 
and RF.  Talk about being stupid!  If I was a woman, I'd caulk it up to 
a bad hair day. ;-) 73 de Carl N8VZ



Matt Zilmer 
October 19, 2016 at 12:17 AM
Check p50 of the Owner's Manual, or alternatively, search for 
"Miscellaneous Setup" and read down from there, under the Mic Gain / 
Bias heading.


73,

matt W6NIA




Carl Jón Denbow 
October 18, 2016 at 10:04 PM
I need some help setting up a Heil Pro 7 with my K3s.  I have the 
physical connection to the back of the rIg OK.  I'm hearing through 
the earphones FB.  However, on TX I'm getting very little modulation. 
 If someone else on this reflector has made this setup, I'd appreciate 
them sharing their Config setup.


Thanks.

73,

Carl

Sent from my iPhone

===

Carl Jón Denbow, N8VZ

17 Coventry Lane

Athens, Ohio 45701-3718

c...@n8vz.com 

www.n8vz.com 

EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!

===




Sent from my iPhone

===

Carl Jón Denbow, N8VZ

17 Coventry Lane

Athens, Ohio 45701-3718

c...@n8vz.com 

www.n8vz.com 

EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!

===



Sent from my iPhone

===

Carl Jón Denbow, N8VZ

17 Coventry Lane

Athens, Ohio 45701-3718

c...@n8vz.com 

www.n8vz.com 

EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!

===



--
==
Carl Jón Denbow, N8VZ
17 Coventry Lane Athens, Ohio 45701-3718
c...@n8vz.com
www.n8vz.com

EM89wh
IRLP 4533 Echolink 116070

PSK and JT65 Forever!
==
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[Elecraft] K3: Cold Temps/ follow up

[Richard Fjeld]

This is a follow up to recent post from someone in California who 
noticed less output when operating in below freezing temps.

In the thread that followed, I mentioned the relationship of cold to 
gain and biasing to prevent
thermal runaway.  My last ARRL Handbook is a 2009 edition and 'Thermal 
Runaway' can be found
in the index.  You may find it interesting.

Dick, n0ce

-- 
  

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Re: [Elecraft] operating HF / KX3 in a Tesla Model S

[Lyle Johnson]

Hello Johnny!

You may need some filtering on the 12V power connector in the center 
console of the Model S.  The 12V battery is also quite small in the 
vehicle.  I'd be inclined to package an LiFePO4 battery pack and a 
charger for it and place it in the center console area, powering the 
mobile rig from the LiFePO4 pack.  That will give you surge capacity for 
higher power should you desire it, probably make any necessary 12V noise 
filtering easier and limit the stress on the 12V system in the Model S.


For antenna mounting, you might consider adding a trail hitch adapter, 
and then mount the mobile antenna to that, using its bonding to prevent 
possible damage or modification to your vehicle.  In the U.S., such a 
hitch is made by Torklift (www.torkliftcentral.com then click through 
Ecohitch and Tesla Model S) and seels for under $400 plus shipping and 
installation. It is invisible when not in use.  I know a couple of Model 
S owners here in Tucson that have these hitches and are satisfied with 
their quality and durability.


73,

Lyle KK7P


On 10/19/16 7:45 AM, Johnny Siu via Elecraft wrote:

Thanks Bill.  The fuse in the cigarette lighter is 15A.  I think only a 50 W 
amplifier is workable.
73
Johnny VR2XMC

   寄件人︰ Bill Frantz 
  收件人︰ Johnny Siu 
副本(CC)︰ Elecraft Reflector 
  傳送日期︰ 2016年10月19日 (週三) 10:15 PM
  主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S

On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via

Elecraft) wrote:


I am thinking operating my KX3 in my Tesla and have some questions:
1.  Is it ok to direct drain DC supply from the cigarette
lighter socket since there is no ignition system in the Tesla?

You will be drawing less than 4 amps, so the lighter socket
should work fine. If you decide to add the 100W amp, then
running dedicated wires will probably be the correct choice. I
would want to know more about the 12V supply in the Tesla before
running them. Perhaps the car manual has some advice.



2.  The body of Tesla is aluminium alloy (if I am correct.
  How can I ground a mobile whip to the car body?

Grounding techniques should be the same as for steel. Do be
aware of the corrosion issues when different metals are in
contact. Aluminium corrodes easily, so having a sacrificial
piece of metal to protect the car body may be a good idea.
Perhaps a piece of aluminum bonded to the car body with copper
or brass bonded to it. (My electro-chemistry is a bit rusty.)
Then that piece of aluminum will corrode and can be easily
replaced. Also think about the materials for any screws/bolts
used for the bonding.

73 Bill AE6JV


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Re: [Elecraft] K3S QST Article

[Eric Swartz - WA6HHQ, Elecraft]

Guys, let's take the dBc discussion off list.

73,

Eric
Mooderator
/elecraft.com/

On 10/19/2016 6:35 AM, Joe Subich, W4TV wrote:

On 10/19/2016 2:11 AM, Jim Brown wrote:

The "carrier" reference for other modulation is the peak of the
envelope.


Which means your dBc references should be labelled "dB PEP" for
the particular modulation.  The reference to dBc is only strictly
accurate for the unmodulated carrier and possibly CW.

Unless you are using  known modulation (e.g., 2 tone for SSB, "idle"
for PSK31) there is no simple PEP to carrier reference.

73,
   ... Joe, W4TV

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[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Thanks Bill.  The fuse in the cigarette lighter is 15A.  I think only a 50 W 
amplifier is workable.
73
Johnny VR2XMC

  寄件人︰ Bill Frantz 
 收件人︰ Johnny Siu  
副本(CC)︰ Elecraft Reflector 
 傳送日期︰ 2016年10月19日 (週三) 10:15 PM
 主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
   
On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via 
Elecraft) wrote:

>I am thinking operating my KX3 in my Tesla and have some questions:
>1.  Is it ok to direct drain DC supply from the cigarette 
>lighter socket since there is no ignition system in the Tesla?

You will be drawing less than 4 amps, so the lighter socket 
should work fine. If you decide to add the 100W amp, then 
running dedicated wires will probably be the correct choice. I 
would want to know more about the 12V supply in the Tesla before 
running them. Perhaps the car manual has some advice.


>2.  The body of Tesla is aluminium alloy (if I am correct. 
> How can I ground a mobile whip to the car body?

Grounding techniques should be the same as for steel. Do be 
aware of the corrosion issues when different metals are in 
contact. Aluminium corrodes easily, so having a sacrificial 
piece of metal to protect the car body may be a good idea. 
Perhaps a piece of aluminum bonded to the car body with copper 
or brass bonded to it. (My electro-chemistry is a bit rusty.) 
Then that piece of aluminum will corrode and can be easily 
replaced. Also think about the materials for any screws/bolts 
used for the bonding.

73 Bill AE6JV

---
Bill Frantz        |"We used to quip that "password" is the most common
408-356-8506      | password. Now it's 'password1.' Who said 
users haven't
www.pwpconsult.com | learned anything about security?" -- Bruce Schneier


   
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Re: [Elecraft] operating HF / KX3 in a Tesla Model S

[Bill Frantz]

On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via 
Elecraft) wrote:



I am thinking operating my KX3 in my Tesla and have some questions:
1.  Is it ok to direct drain DC supply from the cigarette 
lighter socket since there is no ignition system in the Tesla?


You will be drawing less than 4 amps, so the lighter socket 
should work fine. If you decide to add the 100W amp, then 
running dedicated wires will probably be the correct choice. I 
would want to know more about the 12V supply in the Tesla before 
running them. Perhaps the car manual has some advice.



2.  The body of Tesla is aluminium alloy (if I am correct. 
 How can I ground a mobile whip to the car body?


Grounding techniques should be the same as for steel. Do be 
aware of the corrosion issues when different metals are in 
contact. Aluminium corrodes easily, so having a sacrificial 
piece of metal to protect the car body may be a good idea. 
Perhaps a piece of aluminum bonded to the car body with copper 
or brass bonded to it. (My electro-chemistry is a bit rusty.) 
Then that piece of aluminum will corrode and can be easily 
replaced. Also think about the materials for any screws/bolts 
used for the bonding.


73 Bill AE6JV

---
Bill Frantz|"We used to quip that "password" is the most common
408-356-8506   | password. Now it's 'password1.' Who said 
users haven't

www.pwpconsult.com | learned anything about security?" -- Bruce Schneier

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Re: [Elecraft] K3S QST Article

[Joe Subich, W4TV]

On 10/19/2016 2:11 AM, Jim Brown wrote:

The "carrier" reference for other modulation is the peak of the
envelope.


Which means your dBc references should be labelled "dB PEP" for
the particular modulation.  The reference to dBc is only strictly
accurate for the unmodulated carrier and possibly CW.

Unless you are using  known modulation (e.g., 2 tone for SSB, "idle"
for PSK31) there is no simple PEP to carrier reference.

73,

   ... Joe, W4TV

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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[Brian Waterworth]

I will pile on and corroborate Steve's observations.  I too have noticed
the same behaviour on my PX3.  I don't use the knob all that often.  While
I can't rule out a mechanical problem, I did notice this slow versus fast
knob-turning behaviour after I loaded in one of the PX3 firmware updates.
It was likely the second to last firmware update currently available, but I
can't recall specifically which firmware update.

regards,
Brian
VE3IBW

On Tue, Oct 18, 2016 at 6:55 PM, Steve  wrote:

> I have seen a similar issue with my PX3 but it may not be the same or it
> may be related to the root of the problem.
>
> What I notice is what "in the old days" would be switch bounce. What I
> notice (like you) is when I turn the knob fast the value bounces around but
> doesn't go anywhere.  I find that if I turn the knob real slow it will
> work.  The knob is an encoder and must be seeing  CW/CCW pulses out of sync
> or something like that?
>
> Does slow work?
>
> steve WB3LGC
>
>
> On 10/16/2016 12:34 PM, James Austin wrote:
>
>> My PX3 no longer responds to the knob being turned. The only indication I
>> see when turning it is when the marker frequency is being displayed. When
>> turning the knob, the displayed marker frequency bounces back and forth
>> between something like 14.050.80 and 14.050.85.
>>
>> The PX3 is otherwise functional.
>>
>> Any suggestions? I opened it up and all the solder connections for the
>> encoder are solid.
>>
>> 73,
>>
>> Jim/KA2RVO
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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[James Austin]

It's the same behavior, whether you move the knob slow or fast, kind of
like one of the channels on the encoder is being lost. Elecraft told me I
need to send it in to be repaired.

Jim/KA2RVO

On Tue, Oct 18, 2016 at 5:55 PM, Steve  wrote:

> I have seen a similar issue with my PX3 but it may not be the same or it
> may be related to the root of the problem.
>
> What I notice is what "in the old days" would be switch bounce. What I
> notice (like you) is when I turn the knob fast the value bounces around but
> doesn't go anywhere.  I find that if I turn the knob real slow it will
> work.  The knob is an encoder and must be seeing  CW/CCW pulses out of sync
> or something like that?
>
> Does slow work?
>
> steve WB3LGC
>
>
> On 10/16/2016 12:34 PM, James Austin wrote:
>
>> My PX3 no longer responds to the knob being turned. The only indication I
>> see when turning it is when the marker frequency is being displayed. When
>> turning the knob, the displayed marker frequency bounces back and forth
>> between something like 14.050.80 and 14.050.85.
>>
>> The PX3 is otherwise functional.
>>
>> Any suggestions? I opened it up and all the solder connections for the
>> encoder are solid.
>>
>> 73,
>>
>> Jim/KA2RVO
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[Elecraft] 60 m and Low Level Transverter Interface (K60XV)

[William Lagerberg]

Hi list,

I do have an K2 transceiver, and i love it build it for 90% by my self and it 
works ok.
After getting the DSP print last month, the last thing i am looking for is an 
(i would like still to be build) K60XV.

The adventage is not only 60 meters but also the transverter in/output.

Is there somebody who does not need it anymore, or think’s that William is such 
a nice guy he can have it, i would like that very much.

I live in Holland, so that good be a small issue but the package is not big. so 
it good go in a big envelop.

Regards William PE1BSB




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Re: [Elecraft] K3S QST Article

[Jim Brown]

Gee, I thought I did. I told you how I made the measurements. Every data 
point was picked off of the curves with the cursor. The SSB data is 
relative to the highest peak in the envelope, not to the carrier, of 
course, which is suppressed. The "carrier" reference for other 
modulation is the peak of the envelope.


73, Jim

On Tue,10/18/2016 7:38 PM, Wes Stewart wrote:
You didn't answer the question. 



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