Any chance of getting some reasonably high resolution photos of the KPA500?
Maybe there are already some around, but can't seem to find them.
Dave
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Hello dr OM's
I would like to order a K3 (kit) and I need to know what is the physical
dimension of the box shipped; I understand that there is only one box; also
need to know the weight of the box.
Thank you!
*73! Adi*
*Yo2liw *
Hi
I noticed there are 10 keys that could have macros assigned to them (M1-M4
tap/hold and PF1, PF2 hold), but only 8 macros in total can be assigned to
them.
It would be nice, if that wasn't a big effort, if 2 more macros could be
assigned to keys.
Cheers,
Adi
2E0TTX
I'm posting some detail of this long saga of faults on my K3 and the eventual
solution, in the hope that it may help others with similar problems.
My K3/100 S/No 01434 is just about 3 years old now and about a year ago
intermittently started showing faults. At switch-on 'ERR BP1', 'ERR LPF' and
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Already been done and on the market for two years.
Tokyo High Power HL-2.5KFX @ exactly 3x the price ($6K).
1500 watts from a pair of Microsemi ARF-1500 MOSFETS, rated for 1800W
dissipation between the two.
Array Solutions sells them, and the cable
Hi guys,
I developed a voice keyer solution that might be of interest to some of you. It
is completely integrated into an MH-31 hand microphone so no additional weight
and no additional space needed. Originally thought for Yaesu transceivers, then
redesigned to fit Kenwood and Icom, too, it
Hi,
That's easy to fix. Press one of the passband knobs to change mode to
shift/width. Change the width one click. Go back to hi/lo cut and they
should be on even 100s.
AB2TC - Knut
K7TV wrote:
I just replaced my DSP board with the upgraded one, and I agree with the
previous posters who
Hi,
That's easy to fix. Press one of the passband knobs to change mode to
shift/width. Change the width one click. Go back to hi/lo cut and they
should be on even 100s.
AB2TC - Knut
K7TV wrote:
I just replaced my DSP board with the upgraded one, and I agree with the
previous posters who
Already been done and on the market for two years.
Not quite what the KPA-1500 promised -- the HL-2.5KFX does
not support SO2R or six meters.
73,
... Joe, W4TV
On 4/10/2011 7:51 AM, R. Kevin Stover wrote:
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Already been done and on the
Are you suggesting that Elecraft buy Tokyo High Power or copy their amplifier?
Seriously. Be patient. I'm sure that any 1500w solidstate amp made by Elecraft
will be far advanced of what is available from other manufacturers now.
Tom
N5GE
On Sun, 10 Apr 2011 06:51:06 -0500, R. Kevin Stover
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On 4/10/2011 10:13 AM, Joe Subich, W4TV wrote:
Already been done and on the market for two years.
Not quite what the KPA-1500 promised -- the HL-2.5KFX does
not support SO2R or six meters.
73,
... Joe, W4TV
I don't remember seeing
Not quite what the KPA-1500 promised -- the HL-2.5KFX does
not support SO2R or six meters.
dream
Two of these, MRFE6VP61K25H, should do the trick...
/dream
vy 73 de toby, DD5FZ
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I don't remember seeing Elecraft promise anything in regards to a
KPA-1500.
The specs were for 1500 watts, 160-6m and SO2R support.
Someone saw a prototype at a Hamfest two years ago and most
everybody assumed it would go into production.
A lot of people saw prototypes of KPA-800 and
Nice for pulsed or CW devices. How about specs for AB1 service
including standing current and IMD? Standing current (bias) is
critical for heat sink/cooling design. IMD capability is crucial
to how clean the amplifier will be.
Other than those minor considerations, a pair of 900W amplifiers
The spec sheet seemed to indicate the devices can be biased for
linear operation. But with over 20dB gain, the devices would have to
be reined in a bit for USA use. Looks like a pretty rugged device:
Capable of Handling a Load Mismatch of 65:1 VSWR, @ 50 Vdc, 230 MHz,
at all Phase Angles,
I owned a THP 1.5 for a short time. Terrible reliability. After
numerous board swaps and being told there was something wrong with my
house power I returned it. They looked nice. I will never own another
THP product again.
In short, I do not believe the THP quality is anywhere near what
Please don't ban me from this list because I have another stupid ground
question.
I have a nice 27 inch iMac. It's very fast and runs widows and lynx as well.
The USB port works very well will K3# 4636.
The K3 is grounded to my buss under the table as are the other stuff BUT
the iMac
Don,
I'm trying to replace D16 and D17 in the KPA100 but I'm having trouble
removing the heat sink so that I can get at them (it looks to me as if I
have to remove the heat sink to get at the bottom of the PC board to
unsolder them).
I have removed the three black pan head screws that attach the
I use a macbook pro with K3, it has been working flawlessly. I didn't see any
need for grounding the mac.
Adi
2E0TTX
On 10/04/2011 19:31, Phil Townsend wrote:
Please don't ban me from this list because I have another stupid
ground question.
I have a nice 27 inch iMac. It's very fast
Knut,
Thanks for reminding me; I may have seen that solution months ago.
However, what I am looking for is to have all the choices available by just
rotating the LO.
Call me lazy.
73,
Erik K7TV
-Original Message-
From: elecraft-boun...@mailman.qth.net
Also this 'feature' can be a bit inconvenient, when it happens without its
effect being intended.
It would be nice to have the consistency and the finer granularity.
Adi
2E0TTX
On 10/04/2011 20:35, Erik Basilier wrote:
Knut,
Thanks for reminding me; I may have seen that solution months ago.
That is an extremely small market. There is a reason the rigs you
mentioned are no longer around. Serious ops go the transverter route.
The problem is that there are NO good VHF/UHF radios anymore! That's why the
serious OPs MUST go the transverter route. Believe me, there's quite some
market
Hi again,
I agree the feature seems a little odd, but my first priority in this area
(how the RX sounds) is to get serial commands/macros to set the RX
equalizer. Way overdue IMHO.
AB2TC - Knut
aandrei wrote:
Also this 'feature' can be a bit inconvenient, when it happens without its
effect
Olli,
I have personal experience in the past of how popular weak signal work on 2m
is in Europe.
Judging from QST columns there is also a lot of 2m dxing on the U.S. East
Coast.
So, there is definitely a significant market for good V/U gear, but I cannot
judge whether it is big enough by itself
I haven't seen it mentioned, but I'm wondering what the KPA500 kit
plan is? Is it similar to the K3 kit, where it's akin to assembling a
computer, where boards are put into an enclosure, or is it a solder
some parts type kit? I'm assuming the former given the nature of the
kit (having HV and big
I agree. I have had at least two Mac computers in my shack since I got
licensed up again in 2004. Currently I have a 17 inch Macbook Pro that I am
currently typing, an iMac 24 sitting on the desk two feet from the rigs, and
just add to that I have an iPad and an iPhone in the room too. Oh,
Nice for pulsed or CW devices. How about specs for AB1 service
including standing current and IMD? Standing current (bias) is
IMD could be better http://www.qsl.net/f1jrd/800wR.JPG at least on
144MHz.
Graph taken from http://www.qsl.net/f1jrd/MRFE6VP61K25H.html.
FWIW, Freescale claims that
I have a Mac Mini sitting right next to my K3/10 on my desk and have had no
problems. The radio is grounded of course, but the computer is not.
73s de Dave KJ6CBS
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I ordered a KPA500 kit, I am hoping to use it at my remote station
with my K3. Does anyone know if there are provisions for turning the
amp on and off via a control pin like the K3, or some other way? I
assume the status information (faults etc) that are available on the
front panel can be read
I want to say that I read something that the kit would be like the K3
with boards to install.
On 4/10/11 2:55 PM, Jeff Kinzli N6GQ wrote:
I haven't seen it mentioned, but I'm wondering what the KPA500 kit
plan is? Is it similar to the K3 kit, where it's akin to assembling a
computer, where
The KPA500 kit is a no-solder kit similar to the K3.
Bob, N6CM
On Sun, Apr 10, 2011 at 2:43 PM, Mike Fatchett w...@w0mu.com wrote:
I want to say that I read something that the kit would be like the K3
with boards to install.
On 4/10/11 2:55 PM, Jeff Kinzli N6GQ wrote:
I haven't seen it
IMD could be better http://www.qsl.net/f1jrd/800wR.JPG at least on
144MHz.
-35 dB doesn't look too bad compared to a lot of the stuff out there
today - even if it is a PEP (ARRL) measurement. If it is referenced
to one of the two tones, it's significantly better than most of the
currently
One of the USB pins is a ground connection. I don't know if this carries
through the USB-RS232 adapters.
Bob, N7XY
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John
If the board has not been removed a few times, it often sticks on the
screw threads - I suspect that is the problem. I usually use a
flat-blade screwdriver between the heatsink and the board to carefully
nudge it up. Watch where the screwdriver is going (peer between the
board and
NAQCC Sprint Tuesday night!
Our April sprint is this coming Tuesday evening local time (8:30-10:30 p.m.
E.D.T.), which is Wednesday, April 13, 0030-0230z.
I will refer you to the proper URL:
http://naqcc.info/sprint201104.html
There you will find all the details as to time, frequencies and
I'm working on this capability within the KPA Utility. If you can operate the
KPA Utility through remote desktop software, we will offer a way to press all
the KPA500 front panel buttons and display the PA Voltage, Current,
Temperature, Power Output, and SWR. You'll also be able to see and
On the K2 menu you can vary the key weight from .090-1.40 (90-140%) according
to the manual. Did this and played with the paddle but cant tell any
difference. What am I listening for?
WT5Y
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On Sun, Apr 10, 2011 at 5:20 PM, Phil Hystad phys...@mac.com wrote:
I agree. I have had at least two Mac computers in my shack since I got
licensed up again in 2004. Currently I have a 17 inch Macbook Pro that I am
currently typing, an iMac 24 sitting on the desk two feet from the rigs, and
I've got a 3month old k3. I was impressed with how full bodied or maybe even hi
fidelity some of the audio sounded but I eventually grew tired of how the
background band noise sounded in my rural QTH. The best I can describe is it
had a high edge to it. I eventually went to a vacant frequency
Mike,
It might be the default AGC settings that you are struggling with. If
your K3 sounds noisy between stations, or between pauses in the other
station's transmissions, then I suggest that the AGC Threshold and Slope
settings may not be right for your situation.
Please review the Noisy
Hey Phil.
I have my iMac not 10 inches away form my rig without a problem.
I don't think the computer needs to be grounded with the exception of the
ground fault connection in the AC cable going to the outlet. When we get bad
weather though, I do disconnect my rig from the antenna and I also
John,
What keying speed were you using?
Key weighting changes the ratio between a dot and an intervening
space. It is not likely that you will notice a difference at speeds
below 25 or 30 WPM. Below those speeds, I suggest leaving the ratio at
1.00.
If you are doing higher speeds, you
It was good to be back with the net this week. Thanks again to Ken, KO5Y,
for taking over the net in my absence. Propagation was OK to some areas,
but not as good to others. The new frequency (14.316) seems to be working
out. We had 32 participants over a 25 minute period. There is lots of
same with me, except it's a K3/100 on HF and K3/10 on UHF (through
transverter TR432H). Running 750W on HF (sometimes) and up to 700W on
UHF (during contests) there are absolutely no problems. Rigs are
connected via an Edgeport USB - 4Serial-converter and audio in/out
phono lines.
73 Wolf
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