Don Wilhelm w3...@embarqmail.com writes:
The charging scheme for the K2 internal battery is based on using an
SLA battery. If the battery is changed to another battery chemistry,
the charging circuit would have to be modified to match the charging
requirements of the replacement battery
Thanks Udo.
Did you have RF out while the KXV3B was installed? I get no RF either below or
above the 12Watt PA changeover point setting on the PWR control.
73, David
From: Udo Langenohl - DK5YA [via Elecraft]
[mailto:ml-node+s365791n7606338...@n2.nabble.com]
Sent: 16 August 2015 11:58
To:
David,
exactly the same here.
Udo, DK5YA
Am 16.08.2015 um 13:01 schrieb Dave G3WGN M6O:
Thanks Udo.
Did you have RF out while the KXV3B was installed? I get no RF either below or
above the 12Watt PA changeover point setting on the PWR control.
73, David
From: Udo Langenohl - DK5YA [via
Thanks to all that have replied to my question. Looks like it is a go
to get a KPA500. It will definitely be a nice addition to the shack.
73 De Mike
VE3YF
http://www.ve3yf.com
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Elecraft mailing list
Home:
David,
please let the list know what Elecraft says.
73 Udo
Am 16.08.2015 um 13:20 schrieb Dave G3WGN M6O:
Thanks. Time to talk to Elecraft, I think!
73, David
From: Udo Langenohl - DK5YA [via Elecraft]
[mailto:ml-node+s365791n7606340...@n2.nabble.com]
Sent: 16 August 2015 12:11
To: David
Will do.
David
From: Udo Langenohl - DK5YA [via Elecraft]
[mailto:ml-node+s365791n7606342...@n2.nabble.com]
Sent: 16 August 2015 12:29
To: David Aslin G3WGN da...@aslinvc.com
Subject: Re: [SPAM?] Re: [SPAM?] K3 TX calibration fails after KXV3B and SYN3A
upgrade
David,
please let the list know
Thanks. Time to talk to Elecraft, I think!
73, David
From: Udo Langenohl - DK5YA [via Elecraft]
[mailto:ml-node+s365791n7606340...@n2.nabble.com]
Sent: 16 August 2015 12:11
To: David Aslin G3WGN da...@aslinvc.com
Subject: Re: [SPAM?] K3 TX calibration fails after KXV3B and SYN3A upgrade
David,
David,
I had a similar problem here with a friend's K3 (I have two K3(s) with
second receivers installed and had no problem prior to doing this
synthesizer board swap.)We solved the failure to TX calibrate by
reloading the K3 Utility - the same one which worked fine previously.
Reloading
Make sure you have the latest version of the K3 Utility installed.
It is version 1.15.6.29
I had an RX gain cal issue when I installed the new synths and the KXV3B
which was resolved with the latest Utility. Apparently there have been
some timing changes.
Regards,
Mike VP8NO
On 16/08/2015
Setup for RTTY using AFSK and VOX was easy with my original K3. Not so much
with the K3S.
What I've noted is that with the new internal sound card the Line Level is much
fussier and the apparent gain requires lowering the Windows slider to about 25%
vs. 50% on the laptop sound card used
Good Morning,
Please join us this afternoon and evening.
14050 kHz at 2200z Sunday (3 PM PDT Sunday)
7045 kHz at 0100z Monday (6 PM PDT Sunday)
73,
Kevin. KD5ONS
-
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Elecraft mailing list
Home:
Thanks Doug.
Did the radio put out any RF when it failed to calibrate? I'm getting none
when I key the rig.
73, David G3WGN
-Original Message-
From: Doug Turnbull [mailto:turnb...@net1.ie]
Sent: 16 August 2015 16:25
To: David Aslin G3WGN da...@aslinvc.com; elecraft@mailman.qth.net
Howdy Gang:
I recently built a KXPA100 to go with my KX3 and am enjoying the pair so much
that I will now offer for sale my K3 s/n 4528 with options.
1. KPA3 100W amplifier
2. KAT3 100W auto tuner
3. KXV3A Interface
4. PR6 6M preamp
5. 400Hz 8 pole CW filter
6. 2.8Khz 8 pole SSB filter
I soon (12-13 years ago) decided I didn't want a
battery inside the K2 -- so it was removed and
only external batteries used. I was overly(?)
concerned about leakage and such issues. I'd have
the same, or greater, concerns with some of the
newer, higher-density batteries if inside my K2.
Tonight is the August 2015 edition of the Run For The Bacon.
RFTB? What the heck is that?, you may be asking.
RFTB is a friendly QRP Sprint that is held on the 3rd Sunday evening of every
month, and is sponsored by the Flying Pigs Amateur Radio Club, International.
The sprint is the same
Hi all,
We have a new field-test release of KX3 firmware (rev. 2.34) that will let you
set power output as high as 10 watts with a supply voltage of as little as 10
volts. Previously, settings over 5 watts required a supply voltage of 11 V.
This change will be especially useful when the rig is
When my sometimes SO2R-capable station is set up for SO1R and remote
operation, I parallel two band decoders across the K3 ACC and power them on
one at a time to select antennas for either an Alpha 87A or a KPA500
connected via ANT1 and ANT2. I parallel the key and PTT lines as you
contemplated
Mike (and all who have sent replies on and off reflector) - thank you.
I should have been more precise in my note. The firmware I'm using:
MCU 05.33
FPF 01.23
DSP 02.86
Utility 1.15.6.29
Since the original posting I have reloaded the utility and all firmware. No
change - still no RF out and
I'm hoping there is a quick fix for this (some fat-fingering or brain fade on
my part is entirely possible) as the K3 in question is one of four heading
to E6GG next month.
Yesterday I upgraded S/N 4474 with KXV3B and 2 x SYN3As and while the panels
were off, also did the 12V DC Out mod and gold
David,
so did I in June, replaced KXV3-A by KXV3-B, TX calibration always
failed. Tried several times: back to KXV3-A, calibration works, again to
KXV3-B, calibration failed. Checked TMP's a hundred times, no fail for
sure. I didn't replace the SYN-boards.
I finally gave up after 1 week of
There's still another Koss headset - Model KS-45 that's
plug-in compatible with the Yamaha CM500. It has an
electret mic. Also about $25 on Amazon.
Look also at Amazon's listing for a RoverBeats Bravo.
Electrically and functionally (and sound) it's interchangeable
with the CM500 and - for us
Has anyone used the AntLion ModMic with a K2?
I'm currently using a Logitech headset with boom mic and it works fine,
except I had to make a hb inline mic preamp to get enough drive.
The AntLion ModMic looks very nice (a clever design) but I hate to drop
~$50 if it is also going to need a
On Sun,8/16/2015 5:12 PM, James Wilson wrote:
All three of these are look-alikes and have electret mics and
the same wiring and 3.5mm plugs. They sound almost the
same plugged into the rear jacks on my K3 (with bias turned on.)
No surprise. BUT -- how comfortable are they? Have you worn them
Wayne and David,
The service is what is so classy about Elecraft. Even if the radios
were not at the top of the pile such service would make one think of
sticking with Elecraft but of course the Sherwood tests tell us Elecraft is
amongst the very best.
Good going Wayne!
Jim:
Don't electrets have to be powered (voltage applied) where dynamics do not?
Brian
KB1VBF
Sent from my iPad
On Aug 16, 2015, at 8:34 PM, Jim Brown j...@audiosystemsgroup.com wrote:
For example, Yamaha's own description of the CM500 called it a dynamic mic,
while it definitely an
Hi Doug,
i have done the Gold pin modification K3 #2652 ( PA and Front Panel).
73, Roger
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K3-TX-calibration-fails-after-KXV3B-and-SYN3A-upgrade-tp7606337p7606369.html
Sent from the Elecraft mailing list archive at
On Sun,8/16/2015 7:17 PM, Brian Denley wrote:
Don't electrets have to be powered (voltage applied) where dynamics do not?
Right.
On Sun,8/16/2015 8:00 PM, James Wilson wrote:
Yes, the electret mics do require a small amount of power - Elecraft
and others call it BIAS voltage.
It's called
My blog post was mostly about providing clean mic bias with the KX3 for
electrets that get bias from both tip and ring, like the Yamaha CM500.
Give it a quick read, it might answer some questions.
http://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/
wunder
Hello. Someone on the list mentioned a resource text book on the K3
several weeks ago. I lost the information so would appreciate the
information again please.
73
Ian, VK3vin
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Home:
I made it back into town in time to call the net. Band conditions were, as
they have been the last few weeks, deplorable. We managed 19 total
check-ins, myself included. They were:
W4RKS Jim TX K3 3618
NC0JW Jim CO
I got a quick response from David Anderson, GM4JJJ, that the Koss SB40 has a
dynamic mic. Looking at the specs at BH Photo, I agree.
I’ve updated the blog post.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)
On Aug 16, 2015, at 1:47 PM, Walter Underwood wun...@wunderwood.org
Dear OMs and Yls
Can someone tell me for what serial number the change to Gold plated
pins was made for the K3.I note that David found it necessary to do this
for SN 4474. I have two K3s one 2574 and the later 5487.I thought they
were both using gold plated pins.I could take the
I had a 4 cell LiFePO4 battery inside my K2 for quite a while. It was about
the same size as the original SLA.
I found that I was able to charge it with the built-in SLA charging circuit
as a matter of routine and the cells remained in balance, as verified by an
occasional balance charge with a
Finally got around to writing up my simple hack for cleaner mic bias with the
KX3 and Yamaha CM500. Along the way, I spotted something that will make all us
cheap hams happy. It looks like the Koss SB40 ($25) is the same headset as the
Yamaha CM500 ($55).
But we really care about the better
David,
The KXV3B itself should have nothing to do with this unless it is damaged or
installed incorrectly. Also, many K3 users have this same hardware setup along
with rev. 5.33 firmware. So I suspect a firmware configuration issue. Make sure
you're not in TX TEST mode; have crystal filters
Wayne,
Huge thanks for interrupting your weekend. I see Doug EI2CN has already taken
the words out of my mouth re Elecraft support - it is indeed awesome and
impressive.
All understood and I'll work through your suggestions later this
evening/tomorrow morning my time.
I'll get a dossier to K3
Jim, it's true audio quality is very subjective.
For good communications quality, I personally
judge the three headsets I mentioned to be about
equal. Over the ear comfort also compares with my
over the ear headphones - a sauna for the ears. :-)
Brian, Yes, the electret mics do require a small
I am interested.
Alan - k...@arrl.net
-Original Message-
From: [elecraft-requ...@mailman.qth.net]
Date: 08/16/2015 07:03 PM
To: elecraft@mailman.qth.net
Subject: Elecraft Digest, Vol 136, Issue 27
Note: Original message sent as attachment
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