[Elecraft] KAT500

[Jack W4GRJ]

Is there anyway to set antenna selection to bypass when selected?
i have a dipole on ant one where I use the kat500
on ant two I have a random wire on outdoor tuner, I would like kat500 to always 
bypass when ant two is selected.

tnx
Jack
W4GRJ
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[Elecraft] FS KPA500

[Jack W4GRJ]

For sale KPA500 excellent condition 
serial 092. I am the second owner no smoking environment
wired for 125v
includes manual and aux cable
1550 shipped
email to w4...@arrl.net

thought i would list here before it goes on QRZ.COM

Jack
W4GRJ

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[Elecraft] KPA500 Fair Value

[w4grj]

I am thinking of selling my KPA500, appreciate comments on fair value in
excellent condition.

Thanks,

Jack

W4GRJ

 

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Re: [Elecraft] KAT-500 problem

[Jack W4GRJ]

Sounds like you have a great receiver 
Jack
W4GRJ

> On Nov 23, 2019, at 4:14 PM, jdfr...@bellsouth.net wrote:
> 

I have a KAT-500 at least 4 years old.  I can hear stations without any
antennas connected to it.  I live in Clarksville, TN and I copied  station
in Bradenton, FL 600+ miles away on 14.3 MHZ.  I have had the same thing
happen on 40 meters as well.  Any ideas???



KX6F

John Freed

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Re: [Elecraft] KAT500 as a remote-controlled tuner

[w4grj]

All I can say is I have had one on my boat exposed to the Sun for over a year I 
live in Florida can't be any worse UV anywhere and it still good you never 
knowJackW4GRJSent from my T-Mobile 4G LTE Device
 Original message From: Wes Stewart  
Date: 11/3/18  17:32  (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] KAT500 as a remote-controlled tuner Look at the Q on this item.  
Not good for UV exposure.Not ready for AZ desert.On 11/3/2018 1:44 PM, w4grj 
wrote:> Here is a watertight case for $13 w/ free shipping> 
https://www.amazon.com/MTM-ACR5-72-Crate-Utility-Medium/dp/B00T4XL2MO/ref=sr> 
_1_7?ie=UTF8=1541277586=8-7=mtm+case+gard>> Jack> 
W4GRJ>__Elecraft 
mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: 
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Re: [Elecraft] KAT500 as a remote-controlled tuner

[w4grj]

Here is a watertight case for $13 w/ free shipping
https://www.amazon.com/MTM-ACR5-72-Crate-Utility-Medium/dp/B00T4XL2MO/ref=sr
_1_7?ie=UTF8=1541277586=8-7=mtm+case+gard

Jack
W4GRJ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ANDY DURBIN
Sent: Saturday, November 03, 2018 3:18 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KAT500 as a remote-controlled tuner

"Someone asked me recently whether a KAT500 could be remote-controlled"


It wasn't me that asked but I have been considering using the KAT500 as a
remote tuner as I need higher power capability than my current MFJ-993BRT.
However, my approach was going to be to buy just the KAT500 board and
find/build a suitable enclosure.  I'm a bit surprised Elecraft does not
offer the KAT500 board packaged as a weather resistant remote tuner.


As to needing AUX cable and keying interrupt -


  - KAT500 does not need AUX cable to operate but if you want to help it
along it's far better to give it the TX exact frequency rather than just the
band.

 -  What other remote tuners provide keying interrupt?  In any event,
the SWR seen at the remote tuner could be quite different from the SWR seen
at the amplifier and may not be a good indication of whether the amp should
be keyed.


The keying interrupt should be based on SWR seen at the amplifier output.  I
actually already have that wired using my LP100A.


73,

Andy k3wyc
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---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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Re: [Elecraft] KPA-1500 Deliver Update

[w4grj]

What a waste of bandwidthJackW4GRJ

Sent from my T-Mobile 4G LTE Device
 Original message From: Richard Thorne  
Date: 3/15/18  10:56  (GMT-05:00) To: Elecraft Reflector 
 Subject: [Elecraft] KPA-1500 Deliver Update 
Any updates on delivery time?  Last one was posted on 02/20.

Thanks

Rich - N5ZC
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[Elecraft] FS- RemoteRig RRC - 128MkIIs

[w4grj]

RemoteRig RRC -1258MkIIs with cables for K3/0 mini

This is for the RRC Control Unit (has the CW control knob)

$200 mailed

Jack

W4GRJ

 

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[Elecraft] : FS- SignaLink USB for K3 SOLD

[w4grj]

SOLD

Jack

W4GRJ

 

From: w4grj [mailto:w4...@satterfield.org] 
Sent: Wednesday, November 15, 2017 9:32 AM
To: Elecraft@mailman.qth.net
Subject: FS- SignaLink USB for K3

 

SignaLink USB forK3, includes K3 cables $85 mailed

please email inquires offline  w4...@arrl.net

Jack

W4GRJ

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[Elecraft] FS- SignaLink USB for K3

[w4grj]

SignaLink USB forK3, includes K3 cables $85 mailed

please email inquires offline  w4...@arrl.net

Jack

W4GRJ

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[Elecraft] KAT-500 Remote software display

[w4grj]

Recently noticed on the KAT500 remote interface on the PC, lower right corner
shows VFWD and VRFL, when I run winlink express with radio at 100 watts USB it 
shows
VFWD:675  VRFL:50
Appreciate if someone can explain the numbers

Tnx,
Jack
W4GRJ

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[Elecraft] FW: Paper Tape CW sender

[w4grj]

Ken,

Suggest you contact Maritime Radio Historical Society
http://radiomarine.org/ Very interesting group keeping the history of
maritime cw alive 

73's Jack W4GRJ

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Re: [Elecraft] FS MH2 Mic

[w4grj]

MH2 is SOLD
Jack W4GRJ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jack
Satterfield
Sent: Friday, September 30, 2016 7:13 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] FS MH2 Mic

For Sale is a New MH2 mic, purchased when I got my K3 but never used.

I was going to use on my Kenwood but learned here I would have to modify

the  mic, don't want to do that. Selling for $48 mailed.

Responses off line please.

Jack

W4GRJ

 

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Re: [Elecraft] "Random wire" vs Buddystick - myth, bias or luck?

[w4grj]

When explaining low swr vs antenna efficiency I use the example of a dummy
load
perfect swr but not a very good antenna.

Jack
W4GRJ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill
Frantz
Sent: Thursday, September 29, 2016 1:54 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] "Random wire" vs Buddystick - myth, bias or luck?

As the real resistance grows larger compared with the radiation resistance,
then more of the power is converted to heat in the real resistance rather
than radiated as RF.

73 Bill AE6JV

On 9/28/16 at 10:27 PM, j...@audiosystemsgroup.com (Jim Brown) wrote:

>{Radiation resistance is a theoretical resistance that allows us to 
>compute the radiated power. A higher number is better.]
---
Bill Frantz| If the site is supported by  | Periwinkle
(408)356-8506  | ads, you are the product.| 16345 
Englewood Ave
www.pwpconsult.com |  | Los Gatos, 
CA 95032

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Re: [Elecraft] XG2 not working on 3mhz or 14mhz

[w4grj]

Don,
Touched the xtal solder points, that did the trick.
TNX
Jack
W4GRJ

On Sep 23, 2016, at 10:18 AM, Don Wilhelm <donw...@embarqmail.com> wrote:

Jack,

The only things that are changed between bands are the crystals and the switch 
position.
If you do not have bad switch contacts (check with an ohmmeter), then you have 
bad crystals - try resoldering them.

73,
Don W3FPR

> On 9/23/2016 9:51 AM, Jack Satterfield wrote:
> Just tried my XG2 on a new radio, it's only working on 7.040
> 
> Tried on another radio to confirm it's the XG2, battery is good. Any
> suggestions to check why it's not working on all three freqs.
> 

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Re: [Elecraft] [OT] Mobile/Portable gray zone

[w4grj]

Agree you're marine mobile unless you're on high seas outside territorial 
Waters and then your Maritime MobileW4GRJMarine Mobile


Sent from my T-Mobile 4G LTE Device
 Original message From: Michael Blake  Date: 
9/7/16  17:37  (GMT-05:00) To: GRANT YOUNGMAN  Cc: 
Elecraft Reflector  Subject: Re: [Elecraft] [OT] 
Mobile/Portable gray zone 
You never were.  MM only applied if you were on the “high seas”.

Michael Blake
k9...@mac.com 






> On Sep 7, 2016, at 5:14 PM, GRANT YOUNGMAN  wrote:
> 
> The FeeCee no longer cares about this technicality.  If forced to choose, I’d 
> probably sign mobile if I  were using my mobile rig and mobile ant, moving or 
> parked.  If I were using my car to hold up a mast and a beam on a grassy spot 
> — portable.
> 
> Which begs the question — are you still “MM" if your boat is tied up to a 
> pier?  
> 
> :-)
> 
> 
> Grant NQ5T
> K3 #2091, KX3 #8342
> 
> 
>> On Sep 7, 2016, at 4:59 PM, Wes Stewart  wrote:
>> 
>> No suffix would be just fine.
>> 
>> 
>> On 9/7/2016 1:40 PM, rick jones via Elecraft wrote:
>>> This is a very simple question concerning what is considered mobile or 
>>> portable operation. If I am driving my car and communicating on any band I 
>>> am obviously mobile. If I pull over and operate with my mobile setup I am 
>>> still mobile? If I set up a temporary mast that is supported by the car or 
>>> near the car am I then portable?  Just making sure I use the right suffix 
>>> for the right situation! Thanks!
>>> _
>> 
>> __
>> 
> 
> 
> __
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Re: [Elecraft] Common mode chokes - FS RF meter

[w4grj]

FS- I have a RF current meter  MFJ 854 purchased for a project
now available for sale in perfect condition $80 mailed.
Please contact me offline.
Jack
W4GRJ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of EricJ
Sent: Tuesday, August 09, 2016 5:38 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Common mode chokes

W8JI also describes one and how to calibrate it.

http://w8ji.com/building_a_current_meter.htm

Eric KE6US

On Tue,8/9/2016 1:56 PM, MaverickNH wrote:
>> Just wondering - short of +/- RF Burns and Audible Noice, can one 
>> readily detect/measure Common Mode Current on a coax antenna 
>> feedline?
>

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Re: [Elecraft] HF Email / Messaging options?

[w4grj]

Suggest you go to the winlink forumJackW4GRJ
Sent from my T-Mobile 4G LTE Device
 Original message From: Chas H <2mysys...@gmail.com> Date: 
8/2/16  17:38  (GMT-05:00) To: elecraft@mailman.qth.net Subject: [Elecraft] HF 
Email / Messaging options? 
This isn't Elecraft-specific but I do use my KX3 for this.

I am looking into EMCOMM email and message store/forward systems.

I am already using Winlink on HF with both the Winmor protocol and an SCS
PTC Pactor modem and those are working FB.

I am considering putting up an HF BBS-like system that multiple users could
use to store (and possibly forward) messages between multiple users.

I used to do packet on VHF/UHF 20 or so years ago but have never done HF
packet, Amtor, etc. and wondered what options there are today?

My goal is to build 3 or 4 HF turnkey systems using low-cost HF
transceivers, modems or ?, simple portable antennas, etc.  The
lighter/smaller/more agile the better.

Any suggestions for a simple message system using efficient protocols on HF?

And, based on the success of this research, I might look into providing
systems to deploy in the bush for remote missionaries, etc.  Any
suggestions or direction to existing systems (keeping low budgets in mind)
would be appreciated.

Thx + 73,
Charlie
K0CKH
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Re: [Elecraft] Winlink & K3 settings

[w4grj]

Tony,

I use to have a K3, still enjoy this list.

I run a P3 SCS modem on winlink  I think the issue now could be band
conditions.

They are pretty bad http://www.bandconditions.com/ also, the propagation
channel selection

in Winlink Express is showing the same here in Florida.

 

Good Luck,

Jack

W4GRJ/AFA4DG

 

 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tony
Lyon
Sent: Friday, July 15, 2016 9:58 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Winlink & K3 settings

 

Folks,

I recently set up an SCS DR-7400 with my K3 on Winlink.

I must have some settings that

are slightly off, since my link

up capabilities (HF) are not

as reliable as I expected.

 

So, I would appreciate feedback

from Winlink users who are actively using their K3.

 

Here is what I am interested in:

TNC setup values in Winlink (RMS Express)

 

K3 settings used.

 

73,

Tony Lyon (KJ5XF)

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Re: [Elecraft] KAT500 question

[w4grj]

I leave my  kat500 on 24/7JackW4GRJ


Sent from my T-Mobile 4G LTE Device
 Original message From: Jerry  Date: 
7/13/16  18:40  (GMT-05:00) To: 'Rick WA6NHC' , 
elecraft@mailman.qth.net Subject: Re: [Elecraft] KAT500 question 
Thanks Rick and John,

I asked the question because I have just bought the K3/0 Mini remote and I 
would like to be able to turn ON and OFF the KAT500 when I am about 1 thousand 
miles away. I know that I can do control the on.off on the  KPA500 by 
connecting the  8 pin line on the 15 pin ACC connector on the KPA500 to pin 11, 
I was hoping that there would be an undocumented way for the KAT500.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick 
WA6NHC
Sent: Wednesday, July 13, 2016 5:55 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

But you can via the utility, if that can apply to your needs.


Rick nhc


On 7/13/2016 2:28 PM, John E Bastin wrote:
> On Jul 13, 2016, at 17:10, Jerry  wrote:
>> Greetings all,
>>
>>
>>
>> Is it possible to be able to power  on and off the KAT500 through the K3?
> Short answer: No.
>
>  From the KAT500 manual:
>
> "Connect to the station 11 to 15 VDC power supply with the white striped lead 
> to the positive terminal. Do not take this power from the K3’s 12 VDC output 
> connector, even if it has been upgraded for 1 Ampere.”
>
> Hope this helps,
>
> 73,
>
> John K8AJS
> jbas...@sssnet.com
>
>
>
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Re: [Elecraft] OT: HF weather fax

[w4grj]

I receive wefax all the time using fldigi software via soundcard.
There is an extensive amount of wefax transmissions around the globe.
http://www.nws.noaa.gov/om/marine/rfax.pdf

North America I use 
New Orleans http://weather.noaa.gov/fax/gulf.shtml
Boston http://weather.noaa.gov/fax/marsh.shtml

Good Luck,
Jack
W4GRJ




-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of a45wg
Sent: Monday, April 11, 2016 8:08 AM
To: Clint
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: HF weather fax

Clint,
   Your brother will find it easier to revise the 518 Khz NavText
messages - which are transmitted every 6 hours (if memory serves me
correct). They are a simply RTTY format. I tried for long time to get HF
WeFAX to work - but the number of stations transmitting it are extremely few
and far between. They are more local +/- 1500 kms (more than enough for
coastal use). There are some small black boxes available which do this - for
< $200 - which may be worth looking at.

Should you want a more high-tech solution then I would recommend a Pactor 3
Modem (alas not cheap), an HF Radio and a small laptop (or Raspberry Pi) -
and connect to a mail server using SailMail - and receive a GRIB file -
which allows you to do much better weather modelling than some nasty Fax
every did. It takes less than 90 seconds to receive the GRIB files (assuming
you are not taking masses of data like wave height etc).

Fair winds & 73s

   Tim - A45WG

> On 11 Apr 2016, at 01:28, Clint <clint.st...@sbcglobal.net> wrote:
> 
> 
> 
> I am looking for a simple Windows 7, 8, 10 program that can decode 
> NOAA HF weather faxes using a laptop soundcard. I am helping my bro 
> set-up his boat and a Marine SSB/Ham radio.
> 
> Most programs I see are older, run Lunix or are to complex, we need 
> something simple. Any ideas?
> 
> 
> 
> Clint
> 
> KI6SSN
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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Re: [Elecraft] OT: K3 and High Tension Wires

[w4grj]

They are all different,  one good way to find out is tune around on your car AM 
radio it will give you a good idea of rf noise level.JackW4GRJ


Sent via the Samsung Galaxy S®6 active, an AT 4G LTE smartphone 
Original message From: Chris Hallinan  Date: 
3/15/2016  15:17  (GMT-05:00) To: "" 
 Subject: [Elecraft] OT: K3 and High Tension Wires 
Greetings all.

We are considering moving to a location that is more friendly to ham radio
and especially the performance of my K3.  Here in our crowded neighborhood,
I have regular S7 noise levels on all the lower HF bands.  One home we
found (and like) sits fairly close to high tension wires (ie like one lot
away) however its in a much more rural area and likely to be more quite
w.r.t. the usual man-made RF hash.

Does anyone have any experience with living very close to high tension
wires (not tool close, plenty of room for wire antennas without any
danger.)  Assuming nothing is "broken" is it likely to produce RF noise in
the receiver?  Is this something I should be concerned about?

Thanks, and replies off list are appreciated to avoid the wrath of the list
moderator 

Regards,

Chris
K1AY

-- 
Life is like Linux - it never stands still.
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[Elecraft] KX3 with KPA500

[w4grj]

Can anyone advise power out of KPA500 using the KX3 as exciter?
Tnx,
Jack
W4GRJ


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Re: [Elecraft] ;Elecraft] Question about Selling K2

[w4grj]

Jim,
I use the same for portable use, Little Tarheel II screwdriver on a small 
tripod and I use the KISS ground for counterpoise.
Takes about 5 mins to set up and works great!!
Jack
W4GRJ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James 
Wilson
Sent: Saturday, December 05, 2015 9:12 AM
To: Elecraft
Subject: [Elecraft] ;Elecraft] Question about Selling K2

Chuck,
Like many others today, I, too, have some rather severe antenna restrictions. 
Before you give up on getting on the air with your K2 or K3, consider a 
"screwdriver" antenna. I use a Tarheel mounted on a metal tripod with caster 
wheels. I can roll it out onto the driveway when needed. It works surprisingly 
well.

​Jim - W4RKS​


>Hello:
>I built a K3 a few years and bought a bunch of other equipment/supplies 
>to set up a station, but for a number of
 >reasons, I was unable to get an antenna set up.
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Re: [Elecraft] [Elecraft-KPA500] FS KPA500

[w4grj]

I have a used KPA500 with a brand new LPF module with a 1 year warranty.
Just back from Elecraft with latest mods, $2000 shipped. 
All responses off line please.
Jack
W4GRJ


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Re: [Elecraft] [Elecraft-KPA500] FS KPA500

[w4grj]

Correction - there is no warranty another buyer.
Elecraft only warranties to original purchaser
Jack
W4GRJ


-Original Message-
From: w4grj [mailto:w4...@satterfield.org] 
Sent: Friday, November 13, 2015 3:35 PM
To: 'elecraft@mailman.qth.net'
Subject: RE: [Elecraft-KPA500] FS KPA500


I have a used KPA500 with a brand new LPF module with a 1 year warranty.
Just back from Elecraft with latest mods, $2000 shipped. 
All responses off line please.
Jack
W4GRJ


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Re: [Elecraft] KPA500 troubles

[w4grj]

I need to correct the information on the repair cost

It was $615 with shipping not $650 as I previously reported.

 

Jack W4GRJ

 

 


On Thursday, November 12, 2015, W4GRJ <w4...@satterfield.org> wrote:

Since I have never operated on 60m ever... You figure it out
Jack
W4GRJ

On Nov 11, 2015, at 3:33 PM, Jim Brown-10 [via Elecraft] 
<ml-node+s365791n7610243...@n2.nabble.com <javascript:;> > wrote:

On Wed,11/11/2015 12:10 PM, W4GRJ wrote:
> Got the KPA500 back from Elecraft.
> Problem found: L22 and other components in the 60M low pass filter circuit
> burnt through the LPF PCB.

60M LPF??? Last I looked, the US power limit on 60M is 100W relative to
a half wave dipole.



> Repair $650 later: Replaced low pass filter module and installed QSK mod.
>
> On the phone I asked what caused the failure, answer was no idea other than
> component failure. I understand stuff fails but I thought I would get more 
> than 2 years before a major expensive failure.

The LPF is on the output of the amplifier. One possible cause of failure
could be lightning.

> Previously had a Ameritron ALS-600 for 5+ years never a problem, sold it to
> purchase the KPA500.
>
> Sometimes the grass is not greener.

My only experience with an ALS-600 was at a contest station in PJ4
several years ago. I found it to be a really inferior amp - most of the
time, I was lucky to get 300W out if it. No comparison to a KPA500.

73, Jim K9YC


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Re: [Elecraft] KPA500 troubles

[w4grj]

Don’t need any more responses on the legalities of 60M since the amp was never 
used on 60M

as stated in several other replies.

Jack W4GRJ

 

From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger K2AV
Sent: Thursday, November 12, 2015 3:05 AM
To: W4GRJ
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 troubles

 

Kpa500 on 60 is illegal unless you have a *measured and documented* VERY lossy 
antenna that would reduce the effective radiated power to the same as 100 watts 
on a dipole. The simple 99 percent answer is that on 60m SHUT OFF the Kpa500 
and run 100 watts barefoot. 

 

73, Guy K2AV 

On Thursday, November 12, 2015, W4GRJ <w4...@satterfield.org> wrote:

Since I have never operated on 60m ever... You figure it out
Jack
W4GRJ

On Nov 11, 2015, at 3:33 PM, Jim Brown-10 [via Elecraft] 
<ml-node+s365791n7610243...@n2.nabble.com <javascript:;> > wrote:

On Wed,11/11/2015 12:10 PM, W4GRJ wrote:
> Got the KPA500 back from Elecraft.
> Problem found: L22 and other components in the 60M low pass filter circuit
> burnt through the LPF PCB.

60M LPF??? Last I looked, the US power limit on 60M is 100W relative to
a half wave dipole.



> Repair $650 later: Replaced low pass filter module and installed QSK mod.
>
> On the phone I asked what caused the failure, answer was no idea other than
> component failure. I understand stuff fails but I thought I would get more 
> than 2 years before a major expensive failure.

The LPF is on the output of the amplifier. One possible cause of failure
could be lightning.

> Previously had a Ameritron ALS-600 for 5+ years never a problem, sold it to
> purchase the KPA500.
>
> Sometimes the grass is not greener.

My only experience with an ALS-600 was at a contest station in PJ4
several years ago. I found it to be a really inferior amp - most of the
time, I was lucky to get 300W out if it. No comparison to a KPA500.

73, Jim K9YC


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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Yes, I agree and complained, they said the repair was discounted by $200.

The amp is 2 years old.

I am seriously thinking about selling while there is a bit of a warranty and
buying the SPE 1.2KA amp.

Jack W4GRJ

 

 

From: Charlie T, K3ICH [via Elecraft]
[mailto:ml-node+s365791n7610272...@n2.nabble.com] 
Sent: Thursday, November 12, 2015 7:34 AM
To: W4GRJ
Subject: Re: KPA500 troubles

 

That seems like a helluva lot to fix the bandpass 
filter for a band that you never used. 

Very UN-Elecraft sounding to me. 

73, Charlie k3ICH 



-Original Message- 
From: Elecraft 
[mailto:[hidden email]] On 
Behalf Of w4grj 
Sent: Thursday, November 12, 2015 7:14 AM 
To: [hidden email] 
Subject: Re: [Elecraft] KPA500 troubles 

I need to correct the information on the repair 
cost 

It was $615 with shipping not $650 as I previously 
reported. 

  

Jack W4GRJ 

  

  


On Thursday, November 12, 2015, W4GRJ 
<[hidden email]> wrote: 

Since I have never operated on 60m ever... You 
figure it out Jack W4GRJ 

On Nov 11, 2015, at 3:33 PM, Jim Brown-10 [via 
Elecraft] 
<[hidden email] 
<javascript:;> > wrote: 

On Wed,11/11/2015 12:10 PM, W4GRJ wrote: 
> Got the KPA500 back from Elecraft. 
> Problem found: L22 and other components in the 
60M low pass filter 
> circuit burnt through the LPF PCB. 

60M LPF??? Last I looked, the US power limit on 
60M is 100W relative to a half wave dipole. 



> Repair $650 later: Replaced low pass filter 
module and installed QSK mod. 
> 
> On the phone I asked what caused the failure, 
answer was no idea other 
> than component failure. I understand stuff fails 
but I thought I would get more than 2 years before 
a major expensive failure. 

The LPF is on the output of the amplifier. One 
possible cause of failure could be lightning. 

> Previously had a Ameritron ALS-600 for 5+ years 
never a problem, sold 
> it to purchase the KPA500. 
> 
> Sometimes the grass is not greener. 

My only experience with an ALS-600 was at a 
contest station in PJ4 several years ago. I found 
it to be a really inferior amp - most of the time, 
I was lucky to get 300W out if it. No comparison 
to a KPA500. 

73, Jim K9YC 


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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Eric,

Thank you for your response. I did send a message to Wayne for his review,
so I don't want to cause

double efforts on this..I appreciate the review.

 

Since I do live in a active lightning area, I have a well grounded station
and polyphaser surge protection.

Coax is grounded when not in use.. possible but I don't think it was
lightning related.

In 15 years at this QTH I have never had a lightning issue with my station
or anything in the house.

 

Thanks Again,

Jack

 

From: Eric Swartz - WA6HHQ, Elecraft [via Elecraft]
[mailto:ml-node+s365791n761027...@n2.nabble.com] 
Sent: Thursday, November 12, 2015 10:46 AM
To: W4GRJ
Subject: Re: KPA500 troubles

 

Hi Jack, 

I apologize for any consternation this has caused you. 

Since multiple components burned through the LPF  PC board, that is major
damage and would require replacement of the whole LPF board, which is a
major cost component of the amp. (Taking out this board and replacing it
requires disassembly and reassembly of a major portion off the amp.)  The
repair cost also includes the tech time to diagnose, disassemble, repair,
reassemble, retest and do full production TX burn-in of the amp on all
bands. 

Component failure like this can occur in any manufacturer's radio or
amplifier for many reasons, such as power line surges, nearby lightning
strikes, operating with excessive SWR, transmitting into a wrong antenna
etc. You do not need to be operating on a particular band, or even have the
amp or radio on to incur lightning damage. This can also cause partial
damage to components that then shows up as a failure later after additional
operation. 

As a side note, every year during lightning season we see a significant
increase in all sorts of 'interesting' repairs sent in to us on all of our
products. Many times the user is not even aware that a strike occurred
somewhere nearby while they still had their antennas connected. 

I'll review your repair report with our techs to make sure we didn't over
charge for anything. I'll also check to see if they mis-identified which
band the destroyed LPF components were from. 

73, 
Eric 
elecraft.com 
_..._ 


> -Original Message- 
> From: Elecraft 
> [mailto:[hidden email]] On 
> Behalf Of w4grj 
> Sent: Thursday, November 12, 2015 7:14 AM 
> To: [hidden email] 
> Subject: Re: [Elecraft] KPA500 troubles 
> 
> I need to correct the information on the repair 
> cost 
> 
> It was $615 with shipping not $650 as I previously 
> reported. 
> 
> Jack W4GRJ 
> 
>> On Wed,11/11/2015 12:10 PM, W4GRJ wrote: 
>> Got the KPA500 back from Elecraft. 
>> Problem found: L22 and other components in the 
> 60M low pass filter 
>> circuit burnt through the LPF PCB. 
> 

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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Like I said, never ever  operated on 60M, I mean never without the amp.
When discussed with Craig at Elecraft he could not explain the failure, just 
referred to a component failure.
Jack
W4GRJ


On Nov 11, 2015, at 3:59 PM, David Pratt [via Elecraft] 
<ml-node+s365791n761024...@n2.nabble.com> wrote:

Same in the UK, Jim.  Operation on 60m does not require the use of a 
KPA500 unless one wants to contravene the terms of one's license. 

73 de David G4DMP 

In a recent message, Jim Brown <[hidden email]> writes 
>On Wed,11/11/2015 12:10 PM, W4GRJ wrote: 
>> Got the KPA500 back from Elecraft. 
>> Repair $650 later: Replaced low pass filter module and installed QSK mod. 
>> Problem found: L22 and other components in the 60M low pass filter circuit 
>> burnt through the LPF PCB. 
> 
>60M LPF??? Last I looked, the US power limit on 60M is 100W relative to 
>a half wave dipole. 
> 

-- 
  + - - - - - - - - - - - - - - - - + 
  | David M Pratt, Kippax, Leeds.   | 
  | Website: http://www.g4dmp.co.uk | 
  + - - - - - - - - - - - - - - - - + 

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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Got the KPA500 back from Elecraft.
Problem found: L22 and other components in the 60M low pass filter circuit
burnt through the LPF PCB.
Repair $650 later: Replaced low pass filter module and installed QSK mod.

On the phone I asked what caused the failure, answer was no idea other than
component failure.
I understand stuff fails but I thought I would get more than 2 years before
a major expensive failure.

Previously had a Ameritron ALS-600 for 5+ years never a problem, sold it to
purchase the KPA500.

Sometimes the grass is not greener.

Jack
W4GRJ




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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Since I have never operated on 60m ever... You figure it out
Jack 
W4GRJ

On Nov 11, 2015, at 3:33 PM, Jim Brown-10 [via Elecraft] 
<ml-node+s365791n7610243...@n2.nabble.com> wrote:

On Wed,11/11/2015 12:10 PM, W4GRJ wrote: 
> Got the KPA500 back from Elecraft. 
> Problem found: L22 and other components in the 60M low pass filter circuit 
> burnt through the LPF PCB. 

60M LPF??? Last I looked, the US power limit on 60M is 100W relative to 
a half wave dipole. 



> Repair $650 later: Replaced low pass filter module and installed QSK mod. 
> 
> On the phone I asked what caused the failure, answer was no idea other than 
> component failure. I understand stuff fails but I thought I would get more 
> than 2 years before a major expensive failure. 

The LPF is on the output of the amplifier. One possible cause of failure 
could be lightning. 

> Previously had a Ameritron ALS-600 for 5+ years never a problem, sold it to 
> purchase the KPA500. 
> 
> Sometimes the grass is not greener. 

My only experience with an ALS-600 was at a contest station in PJ4 
several years ago. I found it to be a really inferior amp - most of the 
time, I was lucky to get 300W out if it. No comparison to a KPA500. 

73, Jim K9YC 


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Re: [Elecraft] KPA500 troubles

[W4GRJ]

It has been sent to Elecraft.will advise results when I get it back

SN 1767

 

From: mcduffie [via Elecraft]
[mailto:ml-node+s365791n7609384...@n2.nabble.com] 
Sent: Wednesday, October 21, 2015 10:05 AM
To: W4GRJ
Subject: Re: KPA500 troubles

 

On Tue, 20 Oct 2015 08:58:17 -0700 (MST), ok1rp wrote: 

> if your KPA500 has LPF board rev. D or earlier then You will need to make 
> LPF TR Switch Rework REV5 modification, Elecraft parts kit: E850607. But 
> maybe there is another issue in your case. 

Apparently, I missed the OP on this.  What is it about?  What vintage amp
(SN?), 
and what does this modification do? 

Gary AG0N 
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Re: [Elecraft] KPA500 troubles

[W4GRJ]

Peter, thanksamp on it's way to Elecraft.
I will report results when I get it back.
Jack
W4GRJ

On Oct 20, 2015, at 11:58 AM, ok1rp [via Elecraft] 
<ml-node+s365791n760933...@n2.nabble.com> wrote:

Hi Jack, 

if your KPA500 has LPF board rev. D or earlier then You will need to make LPF 
TR Switch Rework REV5 modification, Elecraft parts kit: E850607. But maybe 
there is another issue in your case. 

Try to read first then decide. If you want and you have SMD tools then You can 
try to make this mods first and test if it was the case. If not then you can 
send to Elecraft service. If you have no SMD tools and experiences then it is 
better to send it to them now. The people at Elecraft service are great and 
professional so no worry about. 

It is not complicated just a bit tight on the board and not so much space 
around the parts to remove the old one. Must be done very carefully. I made 
this mod on KPA500 for two friends already and in both cases amps worked well 
after that. 

Hope it helps. 

73 - Petr, OK1RP
http://ok1rp.blogspot.com


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[Elecraft] KPA500 troubles

[W4GRJ]

All of a sudden my KPA500 is misbehaving. It sounds like it is arcing inside
and smells the
classic something is burning smell. SWR LED's are dancing upwards as it
arcs.
KAT500 tuner has the SWR around 1.3:1

I will probably send it off to Elecraft but thought I would ask here for
suggestions to
look at before I send it off.

Thanks, Jack
W4GRJ



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Re: [Elecraft] KPA500 troubles

[w4grj]

Good suggestion...I will do that 
However, I am running barefoot 100 watts thru the KAT500 with no issues.
Tnx,
Jack
W4GRJ

-Original Message-
From: efortner [mailto:efort...@ctc.net] 
Sent: Monday, October 19, 2015 8:53 AM
To: 'W4GRJ'; elecraft@mailman.qth.net
Subject: RE: [Elecraft] KPA500 troubles

Test it one more time with a 50 ohm dummy load on the output to make sure
you don't have a problem between your antenna and KPA 500 SO239 output
connector.

73, Earl K4KAY

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W4GRJ
Sent: Monday, October 19, 2015 8:20 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 troubles

All of a sudden my KPA500 is misbehaving. It sounds like it is arcing inside
and smells the classic something is burning smell. SWR LED's are dancing
upwards as it arcs.
KAT500 tuner has the SWR around 1.3:1

I will probably send it off to Elecraft but thought I would ask here for
suggestions to look at before I send it off.

Thanks, Jack
W4GRJ



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Re: [Elecraft] FS K3 P3

[w4grj]

SOLD. Tnx.
Jack
W4GRJ

-Original Message-
From: w4grj [mailto:w4...@satterfield.org] 
Sent: Saturday, August 01, 2015 7:41 AM
To: 'elecraft@mailman.qth.net'
Subject: RE: FS K3  P3


Last Time for this

For Sale K3 S# 3746 and P3 S# 1020 Both Factory Assembled

K3/100
KAT3 ATU
KRX3 2nd Rcvr
KXF3A IF out and xverter for P3
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter
Included associated interconnect cables
Original cost over $4700

Sell for $3200 includes mailing / insurance All perfect condition, non
smoking environment.

Please reply offline.
Tnx,
Jack
W4GRJ

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Re: [Elecraft] FS K3 P3

[w4grj]

Last Time for this

For Sale K3 S# 3746 and P3 S# 1020 Both Factory Assembled

K3/100
KAT3 ATU
KRX3 2nd Rcvr
KXF3A IF out and xverter for P3
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter
Included associated interconnect cables
Original cost over $4700

Sell for $3200 includes mailing / insurance All perfect condition, non
smoking environment.

Please reply offline.
Tnx,
Jack
W4GRJ

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[Elecraft] FS K3 P3

[w4grj]

Not buying K3S but I am selling my K3 S# 3746 and P3 S# 1020 Both Factory
Assembled

K3/100
KAT3 ATU
KRX3 2nd Rcvr
KXF3A IF out and xverter for P3
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter
Included associated interconnect cables
Original cost over $4700

Sell for $3700 OBO, includes mailing / insurance All perfect condition, non
smoking environment.

Please reply offline.
Tnx,
Jack
W4GRJ


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[Elecraft] FS K3 P3

[w4grj]

For Sale K3 S# 3746 and P3 S# 1020 Both Factory Assembled

K3/100
KAT3 ATU
KRX3 2nd Rcvr
KXF3A IF out and xverter for P3
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter
Included associated interconnect cables
Original cost over $4700

Sell for $3700 includes mailing / insurance
All perfect condition, non smoking environment.

Please reply offline.
Tnx,
Jack
W4GRJ

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[Elecraft] K3 P3 For Sale

[w4grj]

For Sale K3 serial 3746 and P3 serial 1020 Both Factory Assembled

K3/100
KAT3 ATU
KRX3 2nd Rcvr
KXF3A IF out and xverter for P3
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter
Included associated interconnect cables
Original cost over $4700

Sell for $3785 includes mailing / insurance
All perfect condition, non smoking environment. 

Please reply offline.
Tnx,
Jack
W4GRJ


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Re: [Elecraft] K3 P3 For Sale

[W4GRJ]

P3 is sold
Jack
W4GRJ

On Jun 7, 2015, at 8:56 PM, w4grj w4...@satterfield.org wrote:

For Sale K3 serial 3746 (Not K3S) Factory Assembled

K3/100
KAT3
KRX3
KXF3A
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter

$3650 includes shipping and insurance

P3 serial 1020 Factory assembled
$635

All perfect condition, non smoking environment. Prefer to sell K3  P3 as
package, will include associated interconnect cables.

Please reply offline.
Tnx,
Jack
W4GRJ

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[Elecraft] K3 P3 for sale

[w4grj]

For Sale K3 serial 3746 Factory Assembled

K3/100
KAT3
KRX3
KXF3A
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter

$3400 includes shipping and insurance

P3 serial 1020 Factory assembled
$635

All perfect condition, non smoking environment. Prefer to sell K3  P3 as
package, will include associated interconnect cables.

Please reply offline.
Tnx,
Jack

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Re: [Elecraft] K3 P3 For Sale

[W4GRJ]

For Sale K3 serial 3746 (Not K3S) Factory Assembled

K3/100
KAT3
KRX3
KXF3A
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter

$3450 includes shipping and insurance

P3 serial 1020 Factory assembled
$635

All perfect condition, non smoking environment. Prefer to sell K3  P3 as
package, will include associated interconnect cables.

Please reply offline.
Tnx,
Jack
W4GRJ

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[Elecraft] K3 P3 For Sale

[w4grj]

For Sale K3 serial 3746 (Not K3S) Factory Assembled

K3/100
KAT3
KRX3
KXF3A
2- KF3A 2.8k 8pole filter
KFL3A 1.8k 8pole filter
KFL3A 400 8pole filter
KFL3A 6k 8pole filter
KFL3B 13k FM filter

$3650 includes shipping and insurance

P3 serial 1020 Factory assembled
$635

All perfect condition, non smoking environment. Prefer to sell K3  P3 as
package, will include associated interconnect cables.

Please reply offline.
Tnx,
Jack
W4GRJ

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[Elecraft] KPA500 fault

[w4grj]

My KPA500 has recently started to switch from operate to standby while using
on voice LSB on 40 meters
KAT500 tunes to 1.38 SWR, the bypass SWR is 3.1
This now happening on several occasions...any suggestions appreciated.

Jack
W4GRJ
 

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Re: [Elecraft] Home and portable antenna issues.....

[W4GRJ]

I have been where you are and then some ... Long story short, after trying 
almost every portable antenna I have what I think is a wonderful, simple 
solution. I take little Tarheel II screwdriver antenna and mount it on a short 
sturdy camera tripod with a few ground radials. It works almost as good as my 
102' long wire and is amazingly quiet. I got the antenna mount for the tripod 
on EBay. It works great, takes 5 minutes to set up.
Good luck
Jack
W4GRJ

On Mar 9, 2015, at 12:48 PM, Mark Tellez aar...@gmail.com wrote:

Hello all,



I am a relatively new KX3 user.  So far I love the radio but I have had
some issues getting on the air.  Almost all have been related to finding a
good portable and primarily a good home antenna.  I've tried a number of
solutions and have yet to find one that works well.



I currently live in a townhouse – ground floor with a walking path looping
around the building.   This means any antenna I use at home must
include a “cloak
of invisibility” – or reasonable facsimile or be able to be moved inside
during daylight hours.



For portable use I have tried the Alexloop antenna – it works fairly well
portable but is not a practical solution for home use since my outdoor
patio is 20ft away from my radio and tuning is simply not practical.



For portable I have also tried the Buddipole- works okay but it is heavy
for portable and changing coil settings at home isn't practical for same
reason as tuning the Alexloop.  I like the quality of construction on the
Buddipole.



My latest test involves the Chameleon Hybrid-mini base with various
assorted whips (SGC303/ Buddipole long whip, etc).  Although highly
portable the noise threshold seems very high and the reception is mediocre.
I have not tried the Chamelon whips yet but I am a bit skeptical that it
will make much difference.   I have read good reviews on eHam so I am
wondering if there is a special trick to getting the Chameleon to perform
as advertised.  Anyone have experience with these antennas?



So …..Not sure where to go from here.



I am looking for advice on the current solutions I have or recommendations
on something I have not tried yet.



My main concern with portable use is weight.  My main concern with home use
is low visibility and also needing an antenna that works well close to
the ground since I'm in a ground floor condo.



I have debated playing around with wire (thin) loops since I have access to
an SGC 230 and 237 tuner.



I would love to know what has worked for others.



Thanks for the help.



Mark
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[Elecraft] [Elecraft_K3] Auto Power Off

[w4grj]

Is there a Auto Power Off setting in the K3?
I cannot find this in the manual so it's probably not available but thought
I would ask the brain trust.
Thanks,
Jack
W4GRJ

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[Elecraft] K3 - How to turn off internal speaker

[w4grj]

Something changed in my K3 Config, use to have the internal spkr off for use 
with external noise cancelling speaker. This has to be the dumbest question 
ever asked, How to turn off internal spkr?
Jack
W4GRJ


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[Elecraft] K3 KPA500 power on 24/7

[w4grj]

What are opinions of leaving my K3 and KPA500 on 24/7 or should they
be powered on and off for daily use?
Jack
W4GRJ


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Re: [Elecraft] K3 KPA500 power on 24/7

[W4GRJ]

My question is technical not financial I just wanted opinions of  which is 
best for the equipment on 24/7 or not Maybe the answer is it doesn't matter.
Jack
W4GRJ


On Nov 17, 2014, at 5:40 PM, norrislawfirm2 norrislawfi...@gmail.com wrote:

Why would you want to leave it on?  It's just wasting power, though being 
Elecraft, not much.  I turn everything off, ground all antennas, and switch the 
k-line into a dummy load.   Even for the demands of EME the K3 and XV-144 are 
stable in 20 minutes.

I once had the K3 go into a runaway state where it started transmitting on a 12 
mhz frequency I use to listen to marine cw during the annual Night of Nights.  
Smoke escaped.  Elecraft Support was baffled, but it has never reoccured (after 
the K3 was repaired).  It could have been my PC. 

I leave the K3 unattended when it is running WSPR, but I don't understand what 
the upside is to leaving everything on when there are known and unknown 
downsides, static discharges for example.

Stuff Happens.

73

Eric WD6DBM


Sent on a Sprint Samsung Galaxy S® III


 Original message 
From: w4grj
Date:11/17/2014 5:47 AM (GMT-08:00)
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 KPA500 power on 24/7

What are opinions of leaving my K3 and KPA500 on 24/7 or should they
be powered on and off for daily use?
Jack
W4GRJ


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[Elecraft] KAT500 remote software

[W4GRJ]

Are there any instructions anywhere explaining the different settings in the 
software?
Tnx,
Jack
W4GRJ 
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Re: [Elecraft] Suggestions on Antenna Analyzers

[W4GRJ]

I have the AA-600, easy to use with lots of features.
The RigExpert models you listed are basically the same just lower frequency 
range.
You will love it.
Jack
W4GRJ


On Mar 30, 2014, at 10:37 PM, Mark Tellez aar...@gmail.com wrote:

Hello,

I am considering purchasing an antenna analyzer to help me refine some of
my homebrew antenna experiments and also to tune my Buddipole.

What is most important to me is accuracy, ease of use and of course giving
me all the info I will need to adjust my antenna.  Since I have never used
an analyzer I am not sure what I going to need so I would appreciate advice
from those of you who have one.

At this stage I am considering the following:   AA-54, AA-230Pro, iPortable
60, Comet CAA-500, and AIM 4170(not very portable).   Any others I should
look at?

Thanks,

Mark
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[Elecraft] [K3] Phone Patch Hook Up

[w4grj]

I have a Yaesu SP-5 speaker with a built-in LL-5 phone patch.
The instructions show the cabling connected to a FT-1000 which has all the
in and outs for this phone patch.
It is not very clear to me how to connect to the K3. Appreciate if someone
familiar with this could contact me off list.
I can send the connection diagram to you. 

Tnxs,
Jack 
W4GRJ

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Re: [Elecraft] External sound cards

[W4GRJ]

Take a look at the Navigator now from Timewave
http://www.timewave.com/support/Navigator/index.html

I think it is one of the best available, my K3 loves it.

Jack
W4GRJ


On Mar 13, 2014, at 3:49 AM, Paul Ormandy ZL4PW zl...@orcon.net.nz wrote:

Hi all,

Have purchased a new Win 7 laptop and have discovered that my much loved Tascam 
US-122 midi interface/external sound card will not work as it is obsolete and 
Tascam never produced a Win 7 driver for that model.

So I am seeking a very good external USB sound card, preferably USB 3.0 and its 
essential that it has good EMI/RFI handling, i.e. not a cheap and cheerful type!

Any recommendations???

Cheers,

Paul
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[Elecraft] K3 PTT with Navigator

[w4grj]

I changed computers, now trying to get the Navigator sound card interface to 
work with the K3.
I don't remember settings for PTT DTR and RTS settings, are they checked?
Now I have to find the correct comm. port.

Thanks,
Jack
W4GRJ

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Re: [Elecraft] Batteries and solar power

[W4GRJ]

I live in Florida and as a fishing guide, the  4 group 27 AGM batteries on my 
boat have performed perfectly now for over 4 years of almost daily use. I have 
almost every piece of marine electronics and radios running on the boat.

Jack
W4GRJ

On Nov 30, 2013, at 3:17, David Cutter d.cut...@ntlworld.com wrote:

As I understand it, AGM batteries are designed for high current performance, ie 
good for engine starting, but for radio use I would have thought that gel 
batteries would be more suitable as they have a longer life, particularly in 
hot climates.  I have no experience of either, just reading the specs.

David
G3UNA



- Original Message - From: Jeff Cochrane jeffvk...@gmail.com
To: elecraft@mailman.qth.net
Sent: Saturday, November 30, 2013 1:01 AM
Subject: Re: [Elecraft] Batteries and solar power


 On Thu, 28 Nov 2013 05:36:15 +1000, John's email k...@att.net wrote:
 
 I use 2 x 6V 300AH AGM batteries as the prime power source in my shack.
 I use a 15Amp smart charger to keep them topped up whilst mains power is 
 available and a 200Watt solar panel is available for after cyclones 
 (hurricanes) as we invariably lose power for a day or three after them.
 
 
 -- 
 Jeff Cochrane - VK4XA
 East Innisfail
 QLD, Australia
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Re: [Elecraft] Batteries and solar power

[W4GRJ]

David,
I believe the key to AGM longevity is to keep them on a proper charger 24/7.
This is what I have done with excellent results.

Jack
W4GRJ 

On Nov 30, 2013, at 9:36, David Cutter d.cut...@ntlworld.com wrote:

Hello Jack

I can see your experience is good.  I haven't so far uncovered what is meant by 
life for these batteries, perhaps it's when the energy being fed in is more 
than double what is taken out or something of the kind, or the time it takes to 
drain to a projected cut-off.  I doubt that the internal resistance is 
measured.  As an ex marine operator, standby (emergency) battery life was very 
important and they were replaced on a strict schedule, however good or bad they 
might be in use - a bit like alarm batteries and such like.  I know amateur 
requirements are somewhat flexible shall we say : - )

David
G3UNA



I live in Florida and as a fishing guide, the  4 group 27 AGM batteries on my 
boat have performed perfectly now for over 4 years of almost daily use. I have 
almost every piece of marine electronics and radios running on the boat.

Jack
W4GRJ

On Nov 30, 2013, at 3:17, David Cutter d.cut...@ntlworld.com wrote:

As I understand it, AGM batteries are designed for high current performance, ie 
good for engine starting, but for radio use I would have thought that gel 
batteries would be more suitable as they have a longer life, particularly in 
hot climates.  I have no experience of either, just reading the specs.

David
G3UNA



 On Thu, 28 Nov 2013 05:36:15 +1000, John's email k...@att.net wrote:
 
 I use 2 x 6V 300AH AGM batteries as the prime power source in my shack.
 I use a 15Amp smart charger to keep them topped up whilst mains power is 
 available and a 200Watt solar panel is available for after cyclones 
 (hurricanes) as we invariably lose power for a day or three after them.
 
 
 -- 
 Jeff Cochrane - VK4XA 

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Re: [Elecraft] Batteries and solar power

[W4GRJ]

Garyyou are incorrect, because you have no idea what the duty cycle is on 
my boat. Between the 1000 watt sonar, Radar, Multi Function Display's, vhf and 
hf radios, my AGM's are tested a lot more than the usual amateur station. As an 
electrical engineer, I have a pretty good idea of the various applications 
using batteries as E/I source and the associated mathematics. 

Jack
W4GRJ

On Nov 30, 2013, at 12:49, AG0N-3055 mcduf...@ag0n.net wrote:

On Sat, 30 Nov 2013 04:12:54 -0500, W4GRJ wrote:

 I live in Florida and as a fishing guide, the  4 group 27 AGM batteries on my 
 boat have performed perfectly now for over 4 years of almost daily use. I 
 have almost every piece of marine electronics and radios running on the boat.

Which has nothing to do with this application.  A boat is like a car. In
the shack and with solar power, they charge and never have a large
current discharge put on them like a starter motor.

Gary
-- 
http://ag0n.net
3055: http://ag0n.net/irlp/3055
NodeOp Help Page: http://ag0n.net/irlp
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Re: [Elecraft] K3 Memory locations overwriting quick memories

[W4GRJ]

I agree with Tom. I am AF MARS, we operate on lot's of Federal frequencies, 
all outside the Ham bands. Just need to pay attention to your operating which 
we all should be doing.
Jack
W4GRJ / AFA4DG

On Nov 22, 2013, at 21:55, Tom n...@n5ge.com wrote:

Nate,

I am a member of Navy Marine Corps MARS and have many of the MARS
allocations saved in my K3 memories.  All of them are outside the Ham
Bands.

My solution to not preventing transmission mistakes like transmitting
on the WWV frequencies, or transmitting SSB in the CW Bands, or out
side the bands allowed by my License, is to look at my VFO (both A
and B) before transmitting, as hams have done since the beginning of
Ham radio.  The procedure works very well for me, so, no thanks, I
don't want my K3 dumbed down.

Amateure Radio Operator N5GE



 On Fri, 22 Nov 2013 10:37:23 -0500, you wrote:
 
 
 Or provide a do not save out of band frequencies option G.
 
 73,
 
   ... Joe, W4TV
 
 
 On 11/22/2013 10:06 AM, Nate Bargmann wrote:
 * On 2013 22 Nov 09:02 -0600, Nate Bargmann wrote:
 * On 2013 22 Nov 07:20 -0600, Joe Subich, W4TV wrote:
 
 The WWV frequencies are within the broader bands defined by the K3 -
 for example 15 MHz is in the 20 meter band.
 
 That is really my request, that the bands be narrowed to just the
 common limits of the amateur allocations.
 
 Or, make the K3 band limits configurable.
 
 It's only software!  ;-)
 
 73, de Nate 
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[Elecraft] KPA Utility

[w4grj]

 

Recently connect a new KPA500  KAT500 to my K3. 

When running the utility programs, the KPA500 utility shuts down when I
select firmware tab.

The KAT500 program works fine.

Any ideas why the KPA Utility quits when the firmware tab is selected?

 

Tnx,

Jack

W4GRJ

 

 

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[Elecraft] KAT500 USB cable driver

[W4GRJ]

Where can I download the driver for the KAT500 USB cable?
Thanks,
Jack
W4GRJ
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[Elecraft] KAT500 /K3 cable with US Interface soundcard

[W4GRJ]

I recently ordered the KPA500  KAT500. Looking at the connection diagram 
between the K3  KAT500 there is a connection on the ACC  of the K3. My 
Navigator soundcard is now connected to the ACC on the K3. What is the solution 
to use both the KAT500  the Navigator?

Tnx,
Jack
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Re: [Elecraft] KPA500

[W4GRJ]

Will the KPA500 work on HF freqs outside the ham bands ie., MARS freqs?

Thanks,
Jack
W4GRJ
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[Elecraft] KPA500 Frequecies

[W4GRJ]

Will the KPA500 work on all freqs outside the HF Ham bands.
I want to make sure it will function on MARS freqs.

Jack
W4GRJ
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Re: [Elecraft] K3 - using Clear Speech Speaker

[W4GRJ]

I have the GAP Hear It on my K3 and in the car. I have the Clear Speech on my 
boat with a Icom M802. I find they reduce substantially the background noise. 
It is particularly helpful in the car and on the boat but I also love it in my 
shack.

Jack
W4GRJ

On Aug 31, 2013, at 13:13, kb9...@wi.rr.com wrote:

I wasn't the one asking the question.  I was only responding with my 
insight.

I also listen with the SGC ADSP2 speaker, but I do not find it very useful 
with actual QSO's.

How do you get around the relearn time of the DSP speaker when switching 
from transmit to receive?

Keith
KB9WMJ



- Original Message - 
From: 34france 34fra...@bellsouth.net
To: kb9...@wi.rr.com
Cc: elecraft@mailman.qth.net
Sent: Saturday, August 31, 2013 10:39 AM
Subject: Re: [Elecraft] K3 - using Clear Speech Speaker


Keith,
I have been using a Clear Speech AND an SGC ADSP simultaneously with a fixed
K3 at my home base for several years. Basically, I leave it on 'ALL THE
TIME'.  It reduces 'ear fatigue' from extraneous noise and makes the whole
experience inviting to have long casual 'rag chews' even between continents.
Whenever I turn off the extra signal processing to reset the K3 settings to
best performance, I inevitably turn it back on again, because the difference
is so dramatic.  Strong signals sound like local FM and weak signals are
sometimes readable with the outboard DSP, while impossible without it.

Good luck on whatever you decide to do.
Jerry (N4TSC)

-Original Message- 
From: kb9...@wi.rr.com
Sent: Friday, August 30, 2013 23:23
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 - using Clear Speech Speaker

I have used the Gap Hear It and SGC ADSP2 speakers, which are very
similar, and they have their advantages.  I prefer the SGC because of it's
ease of switching between 0db, -13db or -26db noise reduction with a single
switch.

I use the SGC on 6M, when I want to monitor 50.125 USB continuously.  I put
it in the -26dB mode and all the static is gone, so I just wait for voices
to show up.  Unfortunately it makes everything sound like water dripping,
which can be a little annoying.  The GAP is either on or off, and you are
constaly messing with the switches on the back of it to change the level.

Generally the DSP speakers have a slight delay, which can be a problem.
Every time you switch from transmit to receive, the DSP speaker has to
relearn its parameters, so the first 1/2 second or so is without DSP.  It is
amazing how often this is the other call you are trying to pick out, which
is obliterated by the initial switch-over noise.

I have a K3, and have not found it's DSP to be particulary useful.  Usually
by the time I need to use the NR on the K3, the signal I am listening to is
too far gone for it to really help much.

Keith
KB9WMJ


- Original Message - 
From: Bill b...@w2blc.net
To: elecraft@mailman.qth.net
Sent: Friday, August 30, 2013 8:05 PM
Subject: [Elecraft] K3 - using Clear Speech Speaker


Is anyone using the West Mountain Clear Speech Noise Reduction Speaker
with their K3? If so, how do you like and what does it do for you that
the K3 does not?

Thanks,

Bill W2BLC



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Re: [Elecraft] K2 tuner and G5RV

[W4GRJ]

I use a 102 ft G5RV on all freqs from 3 MHz to 29 MHz, of course with a tuner.
Besides the amateur freqs I am on MARS and the marine freqs.

Jack
W4GRJ


On Feb 13, 2013, at 17:14, Paul and Sue Huff ph...@mi.rr.com wrote:

Here in the dead of winter I am thinking about spring antenna projects.  One of 
the antennas that I am considering is a basic 102 ft G5RV.  I would be 
interested in hearing about any experience that anyone has had with this 
antenna and a K2 (QRP) with the internal antenna tuner.  Is the tuner able to 
provide a match on all bands from 80 to 10?  (I don't work 60 meters).

Thanks in advance for any information that you might have to share.

73,
Paul - N8XMS

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Re: [Elecraft] Elecraft USB interface.

[W4GRJ]

Gil,
What kind of noise problem are you referring to? I use a SL USB with my K3 with 
no issue.
Jack
W4GRJ


On Feb 10, 2013, at 11:43, Gil G. g...@keskydee.com wrote:

Hello,

I was going to buy a Signalink USB for my KX3, but after reading about the 
noise problems I am not so sure. I wish Elecraft would build a USB interface… 
It would undoubtedly be a hot seller and I am sure perform flawlessly… Anyone 
in support…?

Gil.
--
PGP Key: http://keskydee.com/gil.asc

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Re: [Elecraft] Elecraft USB interface.

[W4GRJ]

Gil,
Interesting articles on the SL interface. All I know is, I use one all the time 
mainly on MARS MT-63 and Olivia with no issues. I also use a US Navigator which 
I think is the gold standard for digital interfaces   
http://www.navigator-interface.com/

Jack
W4GRJ

On Feb 10, 2013, at 12:06, Gil G. g...@keskydee.com wrote:

This is what I found:

http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html

http://www.frenning.dk/OZ1PIF_HOMEPAGE/images/Wireless%20Article%20-%20Signalink%20USB%20Mods%20v6.pdf

http://www.k7sfn.com/projects/signalink.html

Maybe not a big problem on HF, but I wonder..

I am not saying that the Signalink is bad. Apparently it is widely used and 
appreciated. I just want to get the best possible product to use with my KX3, 
being it a Signalink or something else. Suggestions are welcome.

Anyway, it would be cool if Elecraft made one..

Gil.
--
PGP Key: http://keskydee.com/gil.asc

On Feb 10, 2013, at 11:46 AM, W4GRJ wrote:

 Gil,
 What kind of noise problem are you referring to? I use a SL USB with my K3 
 with no issue.
 Jack
 W4GRJ
 
 
 On Feb 10, 2013, at 11:43, Gil G. g...@keskydee.com wrote:
 
 Hello,
 
 I was going to buy a Signalink USB for my KX3, but after reading about the 
 noise problems I am not so sure. I wish Elecraft would build a USB interface… 
 It would undoubtedly be a hot seller and I am sure perform flawlessly… Anyone 
 in support…?
 
 Gil.
 --
 PGP Key: http://keskydee.com/gil.asc
 
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Re: [Elecraft] K3 near salt water

[W4GRJ]

I live on the water, St. Pete Beach, Fl. Besides amateur radio, I am a Fishing 
Guide and a Raymarine Beta Field Tester. Any electronics not specifically made 
for the marine environment and All electrical connections on the boat, I spray 
all down with Corrosion X 
www.corrosionx.com

One of their advertisements is to take a marine radio which was subjected to 
salt water with the case off .now not working. Then, submerge in a bucket 
of corrosion x over night then power on while still submerged in corrosion x 
... Now working.

You could lightly spray the interior of the K3 before going on the DX 
expedition .

Jack
W4GRJ


On Dec 27, 2012, at 17:01, Robert Fanfant rfanf...@hotmail.com wrote:

 All,While on a mini dx-pedition, most of the original exterior screws in my 
 K3 developed rust after operating near salt water for 10 days. I have ordered 
 the stainless steel screws to replace the original exterior K3 chassis screws.
 1) Should I be concerned about rust developing inside my K3?2)Over the next 
 several years,  I plan to operate near salt water for  extended periods and 
 want to make sure I'm am not going to damage my K3. Is there anything I can,  
 or could have done differently to prevent the rust from developing?
 -rob N7QT 
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Re: [Elecraft] K3 near salt water

[W4GRJ]

No debate here however, It is all a matter of degree of exposure... Bottom 
line, corrosion x will not hurt a thing.

Jack
W4GRJ


On Dec 27, 2012, at 18:17, Ken G Kopp kengk...@gmail.com wrote:

 Eric beat me to posting on this subject.
 
 FWIW, with five years as a R/O / ET on NOAA ocean-going vessels,
 I agree with Eric.
 
 73!
 
 
 
 On Thu, Dec 27, 2012 at 11:08 PM, Eric Swartz - WA6HHQ, Elecraft
 e...@elecraft.com wrote:
 We do not recommend spraying corrosion-x inside the K3. That will void the
 warranty. Corrosion X is basically an oil based preservative, which will
 make a mess of the inside of the radio and also make it difficult to repair
 when needed.
 
 In general, we have not seen serious interior corrosion on K3s in normal
 marine and tropical use where normal precautions are taken (keep the radio
 dry etc..) In those cases where the exterior screws did rust, the interior
 connectors etc. were free from corrosion. The exterior stainless screw kit
 for the K3 is the proper solution for this environment.
 
 73,
 
 Eric
 ---
 www.elecraft.com
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Re: [Elecraft] K3 near salt water

[W4GRJ]

I gave this information for edification purposes...not a dabble.

THIS THREAD IS CLOSED.

Jack
W4GRJ


On Dec 27, 2012, at 19:11, tnny...@yahoo.com wrote:

  Bottom line, corrosion x will not hurt a thing.  
 
 SIGH 
  Not hurt a thing!  Except your WARRANTY!
 
 (((73)))  Milverton. 
 
 From: W4GRJ w4...@satterfield.org
 To: Ken G Kopp kengk...@gmail.com 
 Cc: Elecraft elecraft@mailman.qth.net; e...@elecraft.com 
 e...@elecraft.com 
 Sent: Thursday, December 27, 2012 5:58 PM
 Subject: Re: [Elecraft] K3 near salt water
 
 No debate here however, It is all a matter of degree of exposure... Bottom 
 line, corrosion x will not hurt a thing.
 
 Jack
 W4GRJ
 
 
 On Dec 27, 2012, at 18:17, Ken G Kopp kengk...@gmail.com wrote:
 
  Eric beat me to posting on this subject.
  
  FWIW, with five years as a R/O / ET on NOAA ocean-going vessels,
  I agree with Eric.
  
  73!
  
  
  
  On Thu, Dec 27, 2012 at 11:08 PM, Eric Swartz - WA6HHQ, Elecraft
  e...@elecraft.com wrote:
  We do not recommend spraying corrosion-x inside the K3. That will void the
  warranty. Corrosion X is basically an oil based preservative, which will
  make a mess of the inside of the radio and also make it difficult to repair
  when needed.
  
  In general, we have not seen serious interior corrosion on K3s in normal
  marine and tropical use where normal precautions are taken (keep the radio
  dry etc..) In those cases where the exterior screws did rust, the interior
  connectors etc. were free from corrosion. The exterior stainless screw kit
  for the K3 is the proper solution for this environment.
  
  73,
  
  Eric
  ---
  www.elecraft.com
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Re: [Elecraft] K3 near salt water

[W4GRJ]

My IPad inserted dabble in place of debateboth words work to end this 
thread.


On Dec 27, 2012, at 19:37, W4GRJ w4...@satterfield.org wrote:

 
 I gave this information for edification purposes...not a dabble.
 
 THIS THREAD IS CLOSED.
 
 Jack
 W4GRJ
 
 
 On Dec 27, 2012, at 19:11, tnny...@yahoo.com wrote:
 
 Bottom line, corrosion x will not hurt a thing.  
 
 SIGH 
 Not hurt a thing!  Except your WARRANTY!
 
 (((73)))  Milverton. 
 
 From: W4GRJ w4...@satterfield.org
 To: Ken G Kopp kengk...@gmail.com 
 Cc: Elecraft elecraft@mailman.qth.net; e...@elecraft.com 
 e...@elecraft.com 
 Sent: Thursday, December 27, 2012 5:58 PM
 Subject: Re: [Elecraft] K3 near salt water
 
 No debate here however, It is all a matter of degree of exposure... Bottom 
 line, corrosion x will not hurt a thing.
 
 Jack
 W4GRJ
 
 
 On Dec 27, 2012, at 18:17, Ken G Kopp kengk...@gmail.com wrote:
 
 Eric beat me to posting on this subject.
 
 FWIW, with five years as a R/O / ET on NOAA ocean-going vessels,
 I agree with Eric.
 
 73!
 
 
 
 On Thu, Dec 27, 2012 at 11:08 PM, Eric Swartz - WA6HHQ, Elecraft
 e...@elecraft.com wrote:
 We do not recommend spraying corrosion-x inside the K3. That will void the
 warranty. Corrosion X is basically an oil based preservative, which will
 make a mess of the inside of the radio and also make it difficult to repair
 when needed.
 
 In general, we have not seen serious interior corrosion on K3s in normal
 marine and tropical use where normal precautions are taken (keep the radio
 dry etc..) In those cases where the exterior screws did rust, the interior
 connectors etc. were free from corrosion. The exterior stainless screw kit
 for the K3 is the proper solution for this environment.
 
 73,
 
 Eric
 ---
 www.elecraft.com
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[Elecraft] K3 - Filter settings help

[W4GRJ]

I installed both AM  FM filters and set them up using the K3 utility program, 
with AM using both filters. When I adjust the filter width on the K3 the max I 
can get on AM is 5 kHz. On FM it shows N/A. What am I missing ?

Jack 
W4GRJ
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[Elecraft] K3 - Filter setting help

[W4GRJ]

I installed both AM  FM filters and set them up using the K3 utility program, 
with AM using both filters. When I adjust the filter width on the K3 the max I 
can get on AM is 5 kHz. On FM it shows N/A. What am I missing ?

Jack 
W4GRJ
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[Elecraft] K3 - AM/FM filter settings

[W4GRJ]

I installed both AM  FM filters and set them up using the K3 utility
program, with AM using both filters. When I adjust the filter width on the
K3 the max I can get on AM is 5 kHz. On FM it shows N/A. What am I missing ?

Jack 
W4GRJ

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[Elecraft] Yamaha CM-500 for sale

[W4GRJ]

I have a extra, new never used CM-500 for sale $40 plus actual mailing cost.
Offline replies please.

Jack
W4GRJ


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[Elecraft] K3 P3 on Xmit

[W4GRJ]

Is it possible to view your xmit signal on the P3?

Tnx, Jack
W4GRJ
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Re: [Elecraft] K3 P3 on Xmit

[W4GRJ]

Best long-winded reply received in a long time.
Tnx,
Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bruce Beford
Sent: Monday, May 28, 2012 12:43 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 P3 on Xmit

No, you can not monitor your xmit signal with the P3, at this time. There is
an unused cutout on the rear panel of the P3 labeled sensor. many of us
hope this will be for an optional internal board and external sensor to
allow the P3 to operate as a station monitor on TX.
 
Some people have noted that if you disconnect the RS232 cable between the P3
and the K3, you can see a signal on the P3 during TX. This is due to IF
leakage into the P3, and is not a reliable indicator of your actual transmit
signal. You can see the effect of TX equalization settings on a transmitted
signal's bandwidth, but you are not looking at an accurate representation of
the actual RF output of the radio.
 
Sorry for the long-winded reply, but that's the current state of affairs (as
I understand it).
73,
Bruce, N1RX
 
 Is it possible to view your xmit signal on the P3?
 
 Tnx, Jack
 W4GRJ

 

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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2171 / Virus Database: 2425/5027 - Release Date: 05/28/12

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[Elecraft] KPA500 / KAT500 remote

[W4GRJ]

Can the KPA500  KAT500 be operated remotely via software? I need to separate 
the K3 from them about 3 to 4 feet and would like to operate the amp and tuner 
via pc software.

Tnx,
Jack
W4GRJ

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Re: [Elecraft] High sierra ads in qst

[W4GRJ]

I am confused how this thread has anything to do with Elecraft ??

Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Tubbs
Sent: Thursday, May 10, 2012 2:28 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] High sierra ads in qst

I'm sort of in the middle. I ordered a product from High Sierra last year
and my shipment was mixed up with another. But it was straightened out
quickly, the charges were exactly as stated, and I received a personal
apology for the inconvenience from the owner. I'm happy with them!

Bill
WK6A

Sent from my iPhone

On May 9, 2012, at 11:31 AM, amsct...@comcast.net wrote:

 I sat out the last iteration of this, but I have to say that I have a hard
time taking this seriously without some kind data: issue details, ultimate
resolution, and similar information that would help everyone make an
informed decision. 
 
 So...can we get some details as to what led to these statements? 
 
 
 Mike Alexander - N8MSA
 
 amsct...@comcast.net
 
 - Original Message -
 From: ussv dharma ussvdha...@yahoo.com
 To: elecraft@mailman.qth.net
 Sent: Wednesday, May 9, 2012 1:24:06 PM
 Subject: [Elecraft] High sierra ads in qst
 
 High Sierra often charges considerably more than their advertised 
 prices the current issue of QST. They are also horribly deficient when 
 it comes to customer servicea number of hams have voice this 
 concern.BE CAREFUL IF YOU ORDER FROM HIGH SIERRA
 
 
 If you don't change direction you WILL arrive exactly where you're
headed!! 
 
 Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA 
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1913 / Virus Database: 2425/4988 - Release Date: 05/09/12

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Re: [Elecraft] KPA-500 high gain modification?

[W4GRJ]

Another example, MARS operators are not governed by the FCC.

Jack
W4GRJ / AFA4DG


On Mar 15, 2012, at 18:32, Oliver Dröse dro...@necg.de wrote:

 Great Alan, nice idea with the manual! ;-))
 
 Anyway, a very big part of this world's ham population is not bound to FCC 
 rules. So no need to make it public how to modify, just publish the 
 schematics or send them out on request without pointing out something and 
 Elecraft should be safe?
 
 My KPA500 is serving me very well on my remote station so also no chance to 
 take the PA apart again and have a look myself and just buying a second one 
 without knowing it is possible might be a bit too expensive to find out. 
 ;-)) But I would buy a second KPA500 in a heartbeat if I knew I could modify 
 it for 10 watts drive for full output!
 
 73, Olli
 
 
 
 - Original Message - 
 From: Alan Bloom n...@sonic.net
 To: Oliver Dröse dro...@necg.de
 Cc: elecraft@mailman.qth.net
 Sent: Thursday, March 15, 2012 10:58 PM
 Subject: Re: [Elecraft] KPA-500 high gain modification?
 
 
 On Thu, 2012-03-15 at 21:54 +0100, Oliver Dröse wrote:
 ...
 Three big reasons I can think of that Elecraft does not want to release 
 the
 schematics:
 a.) To keep them hidden for the competition (quite understandable).
 b.) It would probably put down sales of the KPA3 a bit (hmmm).
 c.) If somebody modifies it themselves it will be almost impossible to
 support it in case of problems (quite understandable, too).
 
 The other reason is they might get in trouble with the FCC if they make
 it too easy to modify.
 
 Many years ago when the CB craze was at its height, a manufacturer who
 shall remain nameless came out with a new transceiver.  On page 1 of the
 manual was an illustration of the underside of the chassis with a big
 arrow pointing to a certain wire.  Do not cut this wire or the
 transceiver will transmit on 11 meters.
 
 They didn't get away with it.  :=)
 
 Alan N1AL
 
 
 
 
 -
 eMail ist virenfrei.
 Von AVG überprüft - www.avg.de
 Version: 2012.0.1913 / Virendatenbank: 2114/4872 - Ausgabedatum: 
 15.03.2012
 
 
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Re: [Elecraft] G5RV antenna experience on K3

[W4GRJ]

I use a G5RV mainly on MARS freqs. From 3.2 MHz to 30 MHz using the k3 and  
internal ATU with great success. Never found a frequency it would not easily 
tune.

Jack
W4GRJ / AFA4DG

On Mar 9, 2012, at 1:33, Dick Roth raro...@gmail.com wrote:

 Hi there--
 
 Am considering putting up a g5rv antenna and was wondering what
 experiences K3 users have with this antenna.  Is an external tuner
 necessary?  Is internal ATU3 up to the task of taming this wire?
 
 Any hints will be helpful!
 
 -- 
 73 de Dick, ka1oz
 Elecraft K3/100
 GAP Titan-DX Antenna
 
 
 
 
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Re: [Elecraft] K3: data modes - bizarre behavior

[W4GRJ]

I use RMS Express Winmor,  DSM780  FlDigi MT63, Airmail Pactor and MIL110A, 
they all work perfect with the rig left in USB.

Jack
W4GRJ / AFA4DG

On Jan 2, 2012, at 3:43, Richard Ferch ve3...@storm.ca wrote:

 W4GRJ wrote:
 
 Just leave the K3 in USB, do not change to data mode. RMS Express will set to
 the correct freq. You will not have to make any adjustments.
 
 If this is correct, and RMS Express tunes to the correct frequency in 
 USB mode but not in DATA A mode, then there may be an error in RMS 
 Express. DATA A is exactly the same as USB except for disabling 
 compression and EQ and the default choice of input audio path (line in 
 instead of microphone). In particular, the frequency display in DATA A 
 and USB is the same. A setup that works in USB should work in DATA A 
 without changes.
 
 What I suspect might be happening is that RMS Express might be 
 programmed to handle DATA A as if it were a USB version of AFSK A. In 
 AFSK A, the K3's dial displays the RTTY mark frequency, whereas in DATA 
 A the dial displays the suppressed carrier frequency. If the RMS Express 
 programmers assumed that in DATA A the radio's indicated frequency was 
 the center of the bandpass instead of the suppressed carrier frequency, 
 they would program it to tune the radio 1.5 kHz too high in DATA A.
 
 73,
 Rich VE3KI
 
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Re: [Elecraft] K3: data modes - bizarre behavior

[W4GRJ]

Rich,

I understand the original question, I was just trying to simplify things by
explaining there is no need to switch modes.
This is very convenient on the MARS nets which are USB and we quickly switch
to MT63 for traffic.

Jack
W4GRJ / AFA4DG

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Ferch
Sent: Monday, January 02, 2012 9:13 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3: data modes - bizarre behavior

Yes, of course, but that is not in the least surprising. The question 
is: Why doesn't RMS Express work properly in DATA A mode? This is 
precisely the kind of application that DATA A was intended for.

73,
Rich VE3KI


On 02/01/2012 7:53 AM, W4GRJ wrote:
 I use RMS Express Winmor,  DSM780  FlDigi MT63, Airmail Pactor and
MIL110A, they all work perfect with the rig left in USB.

 Jack
 W4GRJ / AFA4DG

 On Jan 2, 2012, at 3:43, Richard Ferchve3...@storm.ca  wrote:

 W4GRJ wrote:

 Just leave the K3 in USB, do not change to data mode. RMS Express will
set to
 the correct freq. You will not have to make any adjustments.

 If this is correct, and RMS Express tunes to the correct frequency in
 USB mode but not in DATA A mode, then there may be an error in RMS
 Express. DATA A is exactly the same as USB except for disabling
 compression and EQ and the default choice of input audio path (line in
 instead of microphone). In particular, the frequency display in DATA A
 and USB is the same. A setup that works in USB should work in DATA A
 without changes.

 What I suspect might be happening is that RMS Express might be
 programmed to handle DATA A as if it were a USB version of AFSK A. In
 AFSK A, the K3's dial displays the RTTY mark frequency, whereas in DATA
 A the dial displays the suppressed carrier frequency. If the RMS Express
 programmers assumed that in DATA A the radio's indicated frequency was
 the center of the bandpass instead of the suppressed carrier frequency,
 they would program it to tune the radio 1.5 kHz too high in DATA A.

 73,
 Rich VE3KI

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Re: [Elecraft] K3: data modes - bizarre behavior

[W4GRJ]

Matt,

Just leave the K3 in USB, do not change to data mode. RMS Express will set to 
the correct freq. You will not have to make any adjustments. 

Jack
W4GRJ / AFA4DG


On Jan 1, 2012, at 11:30, Matt Zilmer mzil...@verizon.net wrote:

 In all this time with K3 #24, I've never been stymied by any issue
 such as described below.
 
 I'm a Navy-Marine Corps MARS member.  We use RMS Express in the WL2K
 system on HF, running WL2K Winmor mode  The software I have is version
 1.1.3.0.  
 
 I also use LP Bridge to create two COM ports: one used for DTR (PTT)
 and the other for control, COM19 and COM20 respectively.  The sound
 card is an EMU 0202.
 
 The problem is this:  When RMS Express takes control of the K3,
 calling an RMS node on HF *always* results in the receive frequency
 being 1.5 KHz too high.  I've had to rotate the RIT between call-up
 transmissions to get the RX on frequency before the initial 5 attempts
 time out.  The TX frequency seems dead-on, because the RMS always
 answers - but RX is 1.5 KHz high.  And yes, I've tested with multiple
 RMS nodes, including my own NMCM RMS here at the shack.  Same problem
 occurs with each, so it's a setup issue with software or the K3 here.
 
 RMS Express sends the following commands after it's set the COM20 comm
 parameters:
 
FR0;# cancel split
RT0;# RIT OFF
XT0;# XIT OFF
MD6;# TX DATA mode
DT0;# DATA A sub-mode of TX DATA
 
 The sequence above is sent once at the beginning of an RMS Express
 call-up of the remote node.  Only COM19's DTR is used to assert PTT
 for transmissions.
 
 Just for grins, I checked the various meta-modes the K3 is in.  I
 discovered that even though AI is set to ZERO, I'm still getting IF
 annunciations back from the K3.  Odd, that.
 
K31;# K3 extended commands enabled
K22;# K2 extended  
AI0;# AUTOINF OFF
 
 Since split and the incremental controls are off and ZEROed, I'm
 totally blind to what's going on.  VFO A is on the correct frequency
 in each case (for each RMS Node), which means to me that RX and TX
 actual frequencies should be the same.
 
 Any ideas what's causing this?
 
 73 and HNY,
 matt W6NIA, NNN0UET
 
 
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Re: [Elecraft] K3 12v ERR - Deoxit

[W4GRJ]

To further the discussion I use Corrosion X on everything electrical. I have 
two charter boats and it works. No debate intended and I am not suggesting 
Corrosion X is better than Deoxit, just putting the information out there.

Capt. Jack
W4GRJ

On Dec 12, 2011, at 11:09, W0MU Mike Fatchett w...@w0mu.com wrote:

 Radio Shack sells a combo package with the regular Deoxit and their Gold 
 Deoxit.  The normal deoxit is for non gold connectors and the gold is 
 for gold contacts.
 
 Mike W0MU
 
 W0MU-1 CC Cluster w0mu.net
 
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[Elecraft] MCU LD

[W4GRJ]

I think I have a real mess up here. I did the latest firmware update and all
seemed o.k. until I tried to transmit. I have no audio at all. Thinking it
could be the mike, I put the original K3 mike on with same results. O.K.,
all I did was a firmware update so I decided to back rev to previous
versionmy lovely K3 choked and shut down during the first part of the
upload. Now all I get is a blinking red power led and MCU LD in the display.
I tried the reset procedure, holding the power button for 10 sec without
success. The utility does not recognize the radio is connected. Appreciate
suggestions to fix short of sending the radio back.

Tnx,
Jack
W4GRJ

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[Elecraft] P3 Waterfall

[W4GRJ]

This is more a educational question. When using the manual notch to take out
a constant carrier, I can see the notch take out the carrier on the DSM780
waterfall however, the carrier is still visible on the P3 waterfall. Just
wondering why you can't see the same notch effect in the P3 waterfall.
Thanks,
Jack
W4GRJ


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Re: [Elecraft] KPA 500 or SPE EXPERT 1K-FA

[W4GRJ]

I am sure the KPA 500 will be an outstanding amplifier however, there is an
existing alternative with advantages (besides 1kw) over the KPA 500. Namely
a built in antenna tuner in addition to power supply. The spec says it tunes
3:1 but mine will match 5.5:1 automatically and close to 10:1 manual mode.
Very compact  (W 11.02, H 5.51, D 12.60) see all the specs
http://www.steppir.com/SteppirSPE.html

However, the 1K-FA is not suitable for outdoor application.

Jack
W4GRJ

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Re: [Elecraft] [Elecraft K3] Volume Level with NR

[W4GRJ]

Dale,

Just for reference, my experience with the K3 NR is outstanding. I cannot
notice any reduced volume on the tuned signal. The NR on my K3 does a great
job of whacking out the noise without effecting the signal level. 

You may need to do some checking of settings and calibration, I am sure
there are folks here that can help you.

Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Wiese
Sent: Monday, October 04, 2010 2:31 PM
To: Elecraft Email
Subject: Re: [Elecraft] Volume Level with NR

Wayne, 

I am going to disagree - I think its a real issue, and an area for K3
improvement.  While I have not been to Jim's shack to hear what he is
hearing, it  sounds like what I have always observed, at least for SSB
reception.   Engaging the NR significantly reduces the overall audio level.

When I engage the NR on my MkV or FT-847, the band noise drops away, but the
perceived volume of the monitored voice stays about the same.  It is rare
that I need to touch the volume control.  Yaesu NR is reasonably effective
for turning a marginal signal into something that can be copied, and turning
a strong signal with high band noise into something more pleasant to listen
to.

On the K3, engaging the NR in SSB drops both the noise and the apparent
voice level substantially, requiring that the volume control be turned up [a
lot]  to copy the voice.   But then the noise is also increased.
Frequently it feels like the NR has done little to no good, but it is hard
to tell.  Perhaps the ratio between the band noise and the desired signal is
improved, but overall I would say its not.  Or not very much.   

The NR difference on SSB between the K3 and the Yaesu products I have used
is large, and the K3 loses.  It is the _only_ K3 feature I find which is
sub-par, and only for SSB - NR for CW seems much more effective.

73,
Dale
N9XD


On Oct 4, 2010, at 9:13 AM, Wayne Burdick wrote:

 Jim,
 
 Some drop in apparent volume level is typical with NR. Part of the  
 drop is due to the removal of noise. Part of it may be a  
 psychoacoustic effect (sorry, I'm not an expert on this).
 
 You might also try setting F5-1. Settings from F5-x to F8-x use a  
 different algorithm.
 
 73,
 Wayne
 N6KR
 
 
 On Oct 4, 2010, at 9:04 AM, Jim Harris wrote:
 
 
 Hi,
 
 I've noticed recently that when I press NR the volume level drops  
 what could be called a considerable amount.  I normally use NR  
 setting of F-1-1 or -2.  More than that tends to almost mute the  
 receiver.  I find that the volume control needs to be increased  
 about 70 degrees or so to give the same loudness as before the NR  
 was pressed with the above settings.  I have to manually change the  
 volume every time I engage or disengage the NR.  I realize that most  
 likely there should be some decrease in loudness but this seems to  
 be excessive.
 
 Does anyone have any meaningful experience or recommendations they  
 can pass along.
 
 Thank you.
 
 
 Take Pride in the USA!
 
 73,  Jim, W0EM
 
 
  
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Re: [Elecraft] Your suggestions for AMP for K2 QRP unit

[W4GRJ]

check out the SPE Expert 1k-FA, it will do everything you asked for and
more.

http://www.radio-ham.eu/Expert1K-FA.htm

Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw
Sent: Thursday, September 02, 2010 12:18 PM
To: Elecraft_List
Subject: [Elecraft] Your suggestions for AMP for K2 QRP unit

Hi All,
The new EC 500 amp coming out will require the KPA-100 PA for K2 users.

I am interested in adding an amp that can run from the K2 without the
KPA-100.
I don't care about QSK, I can switch the amp ON and OFF XMIT manually or
I can build an interface that will switch the amp  from the K2 AUX line.

However, I will be locating the amp in a remote room (not located at in
the shack room) so I will want an amp that I can perhaps build a wired
control for band selections.

It would be better if it does not have a built in tuner.
But since it will be remote, I will need a unit that will not require
direct controling of band switching, tuning etc.

Also, it must be able to output at least 200 watts CW all bands.

Your suggestions very welcome.
Thanks
Duane
-- 
 bw...@fastmail.net

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Re: [Elecraft] Navigator and K3

[W4GRJ]

I have been using the Navigator for about 1.5 years, first about a year with
a TS-480now about 6 months with the K3. 
Works flawlesslyexcellent technical support when needed.highly
recommended.

Jack
W4GRJ



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan Price
Sent: Wednesday, September 01, 2010 12:34 PM
To: Elecraft
Subject: [Elecraft] Navigator and K3


Has anyone used the Navagator US Interface with the K3?  If so, were you
happy with it?
 
73
Alan
W1HYV 
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Re: [Elecraft] KX1 QRV on a sea Kayak

[W4GRJ]

Sante,

Please post a picture.
Have fun!!
Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sante - IK0HBN
Sent: Sunday, August 15, 2010 6:47 AM
To: elecraft@mailman.qth.net; cw...@yahoogroups.com
Subject: [Elecraft] KX1 QRV on a sea Kayak

Hi all,
I will be QRV starting from tomorrow with a KX1 within my spare time 
from paddling a sea kayak along the Italian coasts in Calabria and 
Puglia. I'll use my home callsign /I8 and /I7. That will realize my 
dream of joining HamRadio and seakayaking doing free nautical 
camping. Power will be supplied by a 12V 7A Gell battery, loaded 
during daytime by a solar panel and antenna will be a piece of wire 
strung between the paddles and somewhat I'll find.
I'll confirm all qso's via the bureau and LOTW.
Copy all you.
Ciao
Sante

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Re: [Elecraft] Amplifier

[W4GRJ]

Depends on the Amplifier, I have a SPE Expert 1K-FA.10watts drive = 500
watts out

Jack
W4GRJ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
Sent: Tuesday, August 10, 2010 1:33 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Amplifier


 ...I presently have a K3 10 and am wondering if the 10 watts will be
enough to kick the new amp

Yes, it will.  You'll likely get more than 100 watts but less than 200 
watts output with 10 watts of drive.  If you want the full 500+ watts, 
then you'll probably need 30W to 40W of drive.

73,

Lyle KK7P

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Re: [Elecraft] Amplifier

[W4GRJ]

The Expert 1K-FA is FCC Certified.maybe my meter is not accurate

In any event, I am sorry I ever commented on this reflector with such
responses.

Jack
W4GRJ


-Original Message-
From: Brett Howard [mailto:br...@livecomputers.com] 
Sent: Tuesday, August 10, 2010 8:48 PM
To: W4GRJ
Cc: Lyle Johnson; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Amplifier

Huh?  I thought that was illegal?

~Brett (N7MG)

On Tue, Aug 10, 2010 at 12:37 PM, W4GRJ w4...@satterfield.org wrote:
 Depends on the Amplifier, I have a SPE Expert 1K-FA.10watts drive =
500
 watts out

 Jack
 W4GRJ


 -Original Message-
 From: elecraft-boun...@mailman.qth.net
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
 Sent: Tuesday, August 10, 2010 1:33 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] Amplifier


 ...I presently have a K3 10 and am wondering if the 10 watts will be
 enough to kick the new amp

 Yes, it will.  You'll likely get more than 100 watts but less than 200
 watts output with 10 watts of drive.  If you want the full 500+ watts,
 then you'll probably need 30W to 40W of drive.

 73,

 Lyle KK7P

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Re: [Elecraft] Re Vertical for portable use

[W4GRJ]

I have had excellent results using the Chameleon V1 antenna for portable use
http://www.chameleonantenna.com . We first used it in February when we
helped out in Haiti. It covered 3.5 to 500Mhz. Used it on HF MARS freqs,
2mtrs and even used it to extend the range of the GMRS radios we used around
the field hospital at the airport.  You can see the Haiti installation in
one of the pics at the bottom of this article
http://www.arrl.org/news/amateur-radio-operators-provide-communications-supp
ort-in-haiti 

For portable/emergency use, I am now using two V1 antennas as a vertical
dipole. This avoids the need to use counterpoise wires. Makes for a very
easy, fast antenna to set up. Also, we have very successfully used a single
V1 on a 42' sailboat mounted on the cabin.

Jack
W4GRJ / AFA4DG


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom W8JI
Sent: Monday, August 02, 2010 6:46 AM
To: ussv dharma
Cc: Elecraft Reflector
Subject: [Elecraft] Re Vertical for portable use

QUESTION:
  this is a solo dxpedition, I am 75 years old.  the antenna farm will most 
likely be vertical and located right at the shore line.

What suggestions do you have for me to construct for antennas?

Susan

Susan,

Without details like the bands you want to use and which bands are most 
important, it is difficult to answer.

Most answers you will get will probably be based on manufacturing 
advertisements and feelings rather than how things really work. 
Manufacturers through their advertisements have largely brainwashed us as a 
group on antennas.  :-)

The Butternut HF6V and Hustler 6BTV are about at the top of the all-band 
gain (80-10 meters) and have nearly identical performance. They both are 
trap verticals, although one of them pretends it does not have traps.

73 Tom 

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[Elecraft] VFO B with VFO A

[W4GRJ]

I want to keep a freq set in VFO B when switching to a new VFO A freq using
the memory. The problem is I lose VFO B freq because in switches to the
memory set for VFO B for the memory location in VFO A.

Is there any way to use memory for VFO A only without changing the freq set
in VFO B ?

Tnx,
Jack
W4GRJ


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[Elecraft] SUB Rcv'r - 'USE AUX' message

[W4GRJ]

When I turn SUB Rcv'r on I get a USE AUX message, can't find in the
manual...can someone explain.

Tnx,
Jack
W4GRJ


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