Why not use a monitor with dual inputs and just switch between P3 and PC (or
has this already been suggested, duh)?
Barry N1EU
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Hi Doug,
# You asked:
Bill...I do have a question or two, with respect to your statement below.
1. Just how often do you find that you run into a situation such as
you describe below? I don't mean simply, during every a contest, I
mean more like how often during a contest? For how many
Barry...
(I am trying not to prolong this thread on the Elecraft
reflector...this will be my last thrust) Your idea to use dual-input
monitors has come up repeatedly in the form of an A-B Switch for
monitors. It is an extension of the primitive idea that one would
un-plug one video
Jack, what AGC setting do you use? I have noticed something similar
here, since around the time I updated to the latest firmware. I'm not
suggesting cause and effect, just approximately how long it's been
73, Pete N4ZR
The World Contest Station Database, updated daily at
I have experienced something similar and my impression is that it is the
noise blanker that sometimes needs some time to recover, but this is just my
gut feeling at the moment.
-
Sverre, LA3ZA
K2 #2198, K3 #3391
LA3ZA Unofficial Guide to K2 modifications
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Pete,
I had a similar experience last year at Field Day. It only happened on
40 meters. It turned out to be a loose PL-259 connector on the 40 meter
bandpass filter.
73,
Don W3FPR
On 1/15/2012 7:36 AM, Pete Smith N4ZR wrote:
Jack, what AGC setting do you use? I have noticed something
Jack,
Is this happening when working strong stations ?
What I notice, for example in a contest, is that after working a strong
station and logging the QSO with a TU, the RX is still desensed by the
AGC action caused by the strong station I just worked. The AGC keeps
starts off where it is
I had a similar problem years ago with other gear. It all went away
when I replaced a connector feeding the coax through a wall.
--Dave, W8OV
On 1/14/2012 9:15 PM, Jack Berry wrote:
Anyone have a similar experience?
Only occasionally, I notice that when I end a transmission my K3 receive
Thanks everyone. I'll check AGC and PL-259's today when I get back to the
shack. I have not (purposefully) touched AGC so it should at default settings.
Seldom use noise reduction either. I will pay close attention to signal
strengths as well.
Jack
On Jan 15, 2012, at 7:32 AM, Dave, W8OV
My incident yesterday was on 20M CW during the NAQP. After transmitting I
suddenly could not hear any sigs. I looked at my P3 and there were plenty
of strong sigs showing up, but I just could not hear them. I tried to tune
around, but could not hear anything. I tried transmitting and SWR
Technically, this would have been fairly easy...a small helper
program (perhaps similar to flrig) would run on the PC and present
the P3/SVGA output in a window. Instead, the person who made the
design decision at Elecraft, chose to/*require */a dedicated monitor
to present the P3/SVGA
Jim and all,
At 5 watts input, I get something just north of 75 watts out of the
KPA500. At 7 watts input, I get 100 watts out from the KPA500. That's not
a precise measurement, but hopefully close enough. That was on 40 meters,
by the way. In any event, without doing the math, that seems
Joe,
While I respect the decision made on this particular module for the P3, I would
like to say that I probably wouldn't buy it if I already had two monitors (or
more) on the desk at my operating position. For someone that is in that
position and already owns the P3, the suggestion to buy
Here is a link:
KX1 Info Cards (6 Pages) Ken Alexander, VE3HLS e-mail request to:
k.alexan...@sympatico.ca
HTH
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Hi,
Out of curiosity ... those fortunate owners of the KPA500 could take
a look and let me know what output they produce when the input to the
amp is exactly 5W
Into a 1.3-1 SWR on 7250 I get right at 50 watts output for 5 watts input. My
dummy load is on back order from MFJ or I could be
I have two HP 2311x monitors which I thought were reasonably priced at $250
each. Each of them has three inputs HDMI, DVI and VGA. I bought these monitors
for packet cluster display and software development, not the P3. These monitors
have front panel control of the video source, so choosing
Looks like HP has got the monitor your mentioning at a good price now in
their home and office website. Nice looking monitor. Thanks for the info,
Tom!
I am eagerly awaiting my P3 and SVGA card in late February! I will be very
happy with a nice big display!
-
Roger W5RDW
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I have a question about the receiver front end protection circuits in the K3 —
specifically, the ones on the RX ANT IN and AUX RF inputs.
When I went to the schematics, here's what I found:
AUX RX feeds the KRX3 Sub Receiver board, where it goes to a gas discharge tube
(SA1) shunted by 470K.
Because it needs to display N1MM logger windows, other stuff AND the P3
output, on the same screen, at the same time. The P3 probably doesn't do
it for that environment. It's just not where they were going with the
design.
73, Guy.
On Sun, Jan 15, 2012 at 5:53 AM, Barry N1EU
You ever consider buying what you need/want? From all accounts the P3
does a fine job for what it was intended to do, but there are other
solutions that would do pretty much exactly what you describe. I don't
always agree with Elecraft's design choices either, but in this case it
has been
Salut Pierre and Group!
Please note my current e-mail address is k.alexan...@rogers.com. The
Sympatico address is an old one and no longer in use.
I lost the original KX1 Cheatsheet PDF file in a poorly managed switch
from an old computer to a new one a few years ago. I don't get many
On 1/15/2012 6:56 AM, Dyarnes wrote:
that seems pretty close to the 15dB
gain figure I think they were shooting for.
The maximum power gain of a commercially built ham amplifier is mandated
by FCC Rules. I don't recall the number, but 15dB sounds close.
I know that about 28 watts input
I have sent a copy of these back to Ken.
-Bruce, N1RX
I don't get many requests for the Cheatsheets any more, but if some kind
soul would e-mail me a copy then I'd be able to fulfil any future
requests.
Thanks and 73,
Ken Alexander
VE3HLS
I am assembling a remotely-operated K2 station. I need a timer that will
kill a runaway transmitter. I am planning to install a kill-switch on the
12 volt DC supply, as that is the only way I can be sure to disable the
transmitter. If I have a K2 and the separate 100W power amp, is it
Tom,
Yes, it is sufficient to kill the power to the base K2 (when the KPA100
is mounted remotely). Unlike the K3, there is little to be lost (bits
mixed up) if you turn the power source off for the K2 during normal
operation.
73,
Don W3FPR
On 1/15/2012 2:14 PM, kg3vt...@gmail.com wrote:
I
I am install the Caps on page 52. In trying to get them as close to the board
as possible. I broke the lead on C71. My initial focus on short leads might
result in damaging the capacitors . It looks like some caps will have to sit
up some since their width is less than the width of where they go.
Don,
Do not stress the leads - you can form them to fit the hole spacing
better (and you do have to do that for a few in the bandpass filter
area). If the leads are less than 1/4 inch that is normally OK - one
major reason to keep the capacitors close to the board is physical -
they will
I am sure there are as many cleaver ways to display the new P3 VGA output. I
plan on using an existing monitor and switching inputs too.
I have 22 light weight LG E2241(street price less than $150 USD) with front
panel selectable input switching. It has DVI, VGA and HDMI inputs.
It has the
Hello, Wayne.
If you were sending the proper serial number, your first KX3 built-in RTTY
mode contact was with me. The serial number you sent was 001. I was
running a K3 at 100 w using FSK-D also. I sort of thought the call looked
familiar. It was a good contest.
73,
Randy, K7TQ
Moscow,
He used to frequent this list
So I am attempting to establish contact.
Thanks
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Following up on an exchange I had some time ago with Larry, I couldn't
figure out why his LP100A watt meter was reading low - even after he had
calibrated it in his shop. With some help from Don W3FPR, I got it
figured out and offer this for future reference to others who may
experience the
New K2 for sale: 10 watt CW version, includes KNB2 noise blanker and KAF2
audio filter with real time clock. I just complete building and aligning it
and the 2 options. This K2 has zero hours on it. All tests and measurements are
within specifications as listed in manual. I bought as a build
Here are some measurements I made a couple of weeks ago with my FT-817 and
KPA500:
Band: FT-817 Out = KPA500 Out
160 Meters: 6.0 Watts = 70 Watts.
80 Meters: 5.8 Watts = 75 Watts.
40 Meters: 5.3 Watts = 75 Watts.
30 Meters: 5.1 Watts = 75 Watts.
20 Meters: 5.1 Watts = 75 Watts.
17 Meters: 5.0
Hi,
I'm new to this email list.
Never had a problem with my K2 until recently when I noticed that it only
transmits at 2 fixed power levels (measured at 7w and 70w approx) despite
display showing continuous power levels when changing power settings with
potentiometer.
Suspect a broken pot (I
Hi,
I'm new to this email list.
Never had a problem with my K2 until recently when I noticed that it only
transmits at 2 fixed power levels (measured at 7w and 70w approx) despite
display showing continuous power levels when changing power settings with
potentiometer.
Suspect a broken pot (I
From related comments on the Elecraft reflector in the past few days
plus the data provided by these measurements, one would multiply the
input power by 15 and obtain an approximation for the output power.
There will be some variation from band to band, and some variation from
KPA500 to
For those of you who may be interested; Being a member of Navy Marine Corps
MARS, I am pleased to report that the KPA500 performs flawlessly on all of the
MARS frequencies I'm required to operate on.
Although I cannot say what the frequencies are I CAN say that they cover a full
range of
Using MMTTY and AFSK, a USB sound card, cables to line in/out. The proper sound
card
is selected in MMTTY. MAIN:MIC SEL is Lin In, the level is 7. LIN OUT level is
8. The
sound card's Windows sliders are at about 2/3 scale, nothing muted. The sound
(Creative) card is producing a diddle. VOX
Left off
73, Mike NF4L
On 1/15/2012 7:23 PM, Mike wrote:
Using MMTTY and AFSK, a USB sound card, cables to line in/out. The proper
sound card
is selected in MMTTY. MAIN:MIC SEL is Lin In, the level is 7. LIN OUT level
is 8. The
sound card's Windows sliders are at about 2/3 scale, nothing
If you only have 2 power output levels, I do believe your problem is
much different than a broken pot.
The K2 does not use the knob setting directly to adjust the power. It
measures the actual output power and compares it to the power you set
with the power pot. If the measured power is not
We had a very nice and well attended net again today, with 38 participants
over a 27 minute period. Eric, WA6HHQ, checked in again, this time with a
K3 remote set up. There were several venerable old radios, including a
Drake TR-3. There wasn't too much discussion after the check-in period.
Randy Foltz wrote:
If you were sending the proper serial number, your first KX3 built-
in RTTY mode contact was with me. The serial number you sent was
001. I was running a K3 at 100 w using FSK-D also. I sort of
thought the call looked familiar. It was a good contest.
I do indeed
Don,
Thanks for the reply, and for all your other help in configuring my K2
station over the last 5 years.
Just out of curiosity - can this not be done if they are mounted in the
same box? I think when mine were configured that way, there still were two
separate 12V inputs - or do they get
Could use some more troubleshooting help. I'm hoping to find a cable left
disconnected but doubt it. Any tips on where to look greatly appreciated!
I added a few mods to my K3 last Friday just getting around to running
through
all the features - shake down cruse. I find the sub receiver,
I’m looking for a copy of the detailed instructions directions
Don Brown, KD5NDB, used to provide with his solar chargers. As most of you
know, Don became a silent key
late in 2011. I recently discovered a
small envelope with parts for one of his smaller capacity chargers. A scanned
copy of
NAQCC Sprint Wednesday night!
Our January sprint is this coming Wednesday evening local time (Jan 18, EST -
8:30-10:30PM, CST - 7:30-9:30PM, MST - 6:30-8:30PM, PST - 5:30-7:30PM), which
translates as Thursday Jan 19, 0130-0330Z in all cases.
I will refer you to the proper URL:
Tom,
First the answer about the K3 - there is some cleanup work that must
be done when the K3 is powered off, so the power off button should be
used rather than just pulling the plug. With the K2, there is no
difference between pulling the plug and using the power switch. Yes,
just like
Don,
I get it. Thanks for the details. Just one more reason I am glad I
converted to the separate Amp/ATU box. This makes it very easy.
73, Tom
KG3V
On , Don Wilhelm w3...@embarqmail.com wrote:
Tom,
First the answer about the K3 - there is some cleanup work that must be
done when the
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