My PEAK power is down by about 50% as measured on an 200MHz
oscilloscope when the COMP is set to 0. This can't be right..
73
Stewart G3RXQ
On Mon, 28 Apr 2008 22:25:36 -0700 (PDT), Paul G4LNA wrote:
I quite agree with you Brian, I didn't think there was any other
way of
monitoring SSB
Many thanks to all who responded either on or off the reflector.
It would seem that no one else can replicate the problem of RX
loss after TX.
Not sure where to take this now, as although there have been
whispers within the Elecraft inner circle that others have
reported unexplained loss of
After reading a recent post referring to the KK7UQ IMD meter I ordered one.
It received unanimous rave reviews on eham.net and I am really looking
forward to receiving it. Glenn, who runs US Interface, who sells it, is a
pleasure to deal with, too.
A thought just occurred to me, that someone who
yes I tried yesterday, I'm amazed at how quite I sounded - almost in
audible at 100W.
Might have been bad conditions - it was very quiet - I'll try again
sometime.
73 de M0XDF, K3 #174
--
Experience is that marvellous thing that enables you to recognize a
mistake when you make it again.
At 05:55 AM 4/29/2008, you wrote:
K3KO wrote:
Try listening to yourself on a web SDR.
http://websdr.ewi.utwente.nl:8901/
...
I can't figure out
how to decode data modes, though, although the page suggests it's possible
Julian, G4ILO
I started up MMTTY here while listening to the
I have noticed the PEP power on both my PowerMaster and my LP-100 meters to
show around 50 watts in SSB mode. Lyle says this is being addressed in the new
firmware that very soon is to be released. I am looking forward to seeing my
peak reading meters showing approximately 90 watts on peaks
Hi all,
Just for the record, I determined empirically that I needed a compressor
setting of 20 to get a reasonable amount of talk power. I have been using
this setting since my first week of operation and I am still getting good
audio reports. My indication of talk power is from watching the
That's good news as my 'Worry Beads' are nearly worn out :-)
73
Stewart G3RXQ
On Tue, 29 Apr 2008 09:11:48 -0400, Roy Morris wrote:
I have noticed the PEP power on both my PowerMaster and my
LP-100 meters to show around
50 watts in SSB mode. Lyle says this is being addressed in the
new
Does anyone have any experience with the MOSFET amp?
I had built one prior to getting my K2.
It still needs an enclosure and power supply.
Hopefully I can finish it this weekend. The bands are just too bad for QRP
right now!
-
Damon Wascom KC5CQW
Elecraft K2 #:6351
Build: 12/28/07-01/01/08
I disconnected all my outboard audio gear on the K3 and connected
an Array Solutions Powermaster Meter and dummy load directly to
the K3. With the K3 set to 120 watts my keydown RF output on
20 meters reads 116 watts.
I connected a stock hand mic that came with my Kenwood TS-2000
to the front
Gee, I thought this was SHORT wave and WIRELESS communication :-)
73, Bob N6WG
- Original Message -
From: G4ILO [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Tuesday, April 29, 2008 2:55 AM
Subject: Re: [Elecraft] Monitoring yourself
K3KO wrote:
Try listening to yourself
Chuck, AE4CW, posted:
Ron, I too had the headphone jack problem. After talking with tech
support I reveisited the assembly and am certain it's perfect, but there is
still a gap between the shoulder of the headphone jack and the front panel.
I measured it with a shim guage but, unfortunately
Unless Clint has updated the firmware it's for PSK.
However, the K3 also has a built-in PSK generator, so you can just go
into PSK DATA D mode and not send anything with the paddles, adn it will
send an idle tone, which is all zeros (crossings).
Leigh/WA5ZNU
G4ILO wrote:
After reading a
For sale Elecraft K2 with KPA-100, etc with the following options listed
below. All are in separate EC-2 cases. I would like to sell ALL in one
deal but will consider splitting up. However, if I split up the set the
radio goes last! Pictures available at request. You can see pictures at
Hi All,
I've been watching this thread and wondering if there truly is a problem.
It seems to suggest there is, and Elecraft says they are looking into it
with a firmware update pending. But I can't help thinking that there are so
many reasons why the problem could just possibly be in the
I also have the rattling washer on the headphone jack. I have been
working with tech support taking measurements and checking different
things. No joy so far. Everything checks out as far as the assembly goes. I
just seem to have about .050 more clearance between the shoulder of the
headphone
The real key is using an external audio generator into the mic
input and seeing what comes out the other end using an
oscilloscope. This removes all the issues with microphones and
their setup.
I agree that antenna matching can make quite a difference to the
results, that is why I took the time
The standard Kenwood wiring has the 8 volts or so on a different pin than
the Elecraft uses. I think the Kenwood is pin 5, and the Elecraft is pin
6--or maybe I have that backwards. But there is a difference.
That's news to me. Can someone confirm that the +8VDC is on another pin
other
See FAQ on Elecraft Web site under Microphone connections. Bias is on pin
6
Bob Serwy - N9RS
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Christensen
Sent: Tuesday, April 29, 2008 12:09 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft]
Hello,
A simple question for you,
Does the K2 have a built in SWR meter ?
I am going to build an ATU and I want to know if I'll
need to include an SWR meter. If the K2 already has
one , I will not need to.
Please reply directly to me , thanks.
Rob F5VHN f5vhn(at)yahoo.com (at)=@
The K3 manual (rev C) shows 8v on pin 6 of the mic connector. See page 13.
73, Ken K3IU
Paul Christensen wrote:
The standard Kenwood wiring has the 8 volts or so on a different pin
than the Elecraft uses. I think the Kenwood is pin 5, and the
Elecraft is pin 6--or maybe I have that backwards.
Hi friends:
I faced a similar problem of low out power on ssb.
On my specific case the problem was the configuration of the FL1 FRQ
configuration.
You must check on the filter (2,7Khz) what is the offset
On my case is -0,91. If you make a configuration out of the offset freq the
output power
Iv'e been getting away from using Anderson Powerpole connectors and now relying
on Tyco Electronics/AMP Power Lock Connectors. Essentially the same thing, but
much higher quality. They will mate with the Anderson line so no problem there.
A lot of people have complained at how easily the
On a related topic, does anyone have any experience of using the usb types
of 'oscilloscopes' which appear on eBay- dual channel 60MHz bandwidth and
150Mb/s sampling rate? It's a neat and cost-effective way of displaying the
transmitted waveform for those of us without desk/bench room for a
David Yarnes wrote:
Hi All,
I've been watching this thread and wondering if there truly is a
problem. It seems to suggest there is, and Elecraft says they are
looking into it with a firmware update pending.
What I suggest is that everyone wait for the firmware upgrade. I know
that they
I maybe lucky but I have been using anderson power poles for a few years and
I never had a problem with them. I use them for all my ham power
connections.
Bob Serwy - N9RS
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Fairbank
Sent: Tuesday,
UPDATE! ERROR on KPA100 and KAT100
For sale Elecraft K2-100 With the following options listed below. All are
in separate EC-2 cases. I would like to sell ALL in one deal but will
consider splitting up. However, if I split up the set the radio goes last!
- K2 HF Transceiver S/N 2390 - $1000
There is currently a known problem which is being worked on. An easy way
to see the problem is to set the K3 power level at 40 Watts then
transmit using Olivia 500/16, the power level peaks around 100 Watts and
shows the peaks quite well on the K3 RF output scale.
73 Dave, G4AON
K3/100 #80
See FAQ on Elecraft Web site under Microphone connections. Bias is on pin
6. Bob Serwy - N9RS
I see it and it states this:
The K3 8-pin microphone connector is wired the same as the K2 using the
Kenwood pin-out.
The pin-out may be close to Kenwood's, but it is not the same. I literally
Sampling at twice the bandwidth will allow you to accurately extract
frequency information about a signal, or if all you were viewing were
sine waves. To view the actual waveform, however, you really want to
sample at at least 4x or 5x the bandwidth, or, even better, 10x the
bandwidth.
Click on the DIAGRAM button and look at the pin out.
Bob Serwy - N9RS
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Christensen
Sent: Tuesday, April 29, 2008 1:01 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 low PEP Power on SSB
Click on the DIAGRAM button and look at the pin out.
Bob Serwy - N9RS
Right, based on the diagram, it is not 100% compatible with Kenwood.
Paul, W9AC
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Hi again,
Thats interesting..
Some say 'yes' and some say 'no'.
It looks like the K2 (original qrp) version does not ,
but the K2/100 does.
Do you agree ?
thanks
F5VHN f5vhn(at)yahoo.com (at)=@
--- Ffive VHN f5vhnyahoo.com wrote:
Hello,
A simple question for you,
Does the K2
The basic K2 does not have a bridge on the output...the KPA100 amplifier and
the KAT100 tuner both have bridges. The 100 has a SWR display from the
bridge, the KPA100 is used basically as a power meter circuit.
Gregg R. Lengling, W9DHI
Administrator
http://www.milwaukeehdtv.org
The Basic K2 get´s an SWR Meter as soon as the KAT2 QRP Tuner is built in.
You don´t need any 100W Version
72/3 de Peter, DL2FI
-Original Message-
From: [EMAIL PROTECTED] [mailto:elecraft-
[EMAIL PROTECTED] On Behalf Of Gregg R. Lengling
Sent: Tuesday, April 29, 2008 8:38 PM
To:
Ron D'Eau Claire wrote:
So far, all the cases of a loose headphone washer that I've seen were
because the front panel pc board wasn't completely seated in the front panel
sheet metal. Rather, one edge of the microphone connector is binding in the
hole in the sheet metal, keeping the board from
Yes, it is - it make one great band scope - I just talk on the K3 :-)
73 de M0XDF, K3 #174
--
For all our conceits about being the center of the universe, we live
in a
routine planet of a humdrum star stuck away in an obscure corner ...
on an
unexceptional galaxy which is one of about 100
Paul and all,
That statement *is* true - however it may be misleading for those not
familiar with the K2 wiring for the Kenwood microphone. Pins 5 and 6
are *not* wired to the microphone configuration header in the K2 for a
Kenwood microphone (except for those Kenwood microphones which have
I wasn't complaining about getting 110 watts output, I was happy and thought
the radio was working fine. This is 110 watts peak rf on the wattmeter not
PEP.
The radio works fine. There is nothing wrong with using the Kenwood mic. I
get
3 to 5 bars on the ALC with only 15 on Mic and 18 on
I know the powers that be don't like complaints about the APP, but, the
Factory mounted APP's on my K3 had one of the blades recessed at least 1/8
inch from its proper position. Until I corrected this (which requires
removing that side of the cabinet and the rear panel) my connectors would
Greetings, Frank.
Before I get on the air. What are some of the most common
errors for beginning CW Operators. Thanks
When starting down the road to learn morse, I would toss any sheet that shows
the characters as a bunch of dots and dashes. You would be better off with a
sheet that shows
Just can't find the time for amateur radio, so I'm selling my new K3, the
best radio I've ever owned.
What's included:
K3
KPA3100W PA
KFL3A - 250 250 Hz, 8 Pole Filter
KFL3A - 400 400 Hz, 8 Pole Filter
KFL3A - 2.8K 2.8 kHz, 8 Pole Filter
KTCXO3-1 TCXO 1ppm
APPs are [EMAIL PROTECTED] Date: Tue, 29 Apr 2008 12:36:05 -0700 From:
[EMAIL PROTECTED] To: elecraft@mailman.qth.net Subject: Re: [Elecraft]
K3--Trouble with Power Pole connectors I know the powers that be don't
like complaints about the APP, but, the Factory mounted APP's on my K3 had one
I've only received sporadic reports of this happening, and *nothing* after
suggesting checking the fit of the mic connector, which led me to believe
the problem was fixed as suggested. I appreciate those who are taking the
time to say otherwise!
I did a little research today with people building
Wire the dc cable direct into the rig and let the other end do the
disconnect. Less dc loss and no contacts to worry about.
David
G3UNA
I know the powers that be don't like complaints about the APP, but, the
Factory mounted APP's on my K3 had one of the blades recessed at least 1/8
inch
Kevin VE3SYB wrote:
An A isn't .- it is didah. A C isn't -.-. but dahdidahdit.
-
Absolutely! It's the sound that's important. Similar cautions are found in
the earliest handbooks I have dating back to the 1930's. I suspect that's
been so since the beginning of telegraphy.
Actually, for a narrow-band signal, you only have to sample at twice the
BANDWIDTH, not twice the frequency. So long as there are no interfering
signals around (reasonably accurate when measuring a transmitter),
so-called undersampling works fine so long as:
1. The sample rate is more than
K3 # 290 is sold and paid for.
The K3 is one popular radio.
Bill - N2WG
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Hello all,
I posted a message about a week ago asking if there would be any problems
taking a ham radio on a trip aboard a commercial airline.
Well I took my KX1 to my son's place for a long weekend. I never had a
problem. Packed it in my baggage. Battery, end fed dipole, small key, copy
of my
Stan, W5EWA wrote:
I think one possible fix would be to use .050 shorter standoffs between
the DSP board and the FP board. That would cause the shoulder of the
headphone jack to be close enough to the FP sheet metal to keep the washer
from rattling, and would also allow the connectors on the
Al,
I'm confused. I always thought (at least before I became a lawyer and
stopped thinking about such things) that to reconstruct a waveform you
needed to sample at twice the highest frequency of the Fourier components
contained in the signal waveform. For a sine wave, that would be twice
Still trying to adjust my SSB Filters. First it was INFO 230. I plugged
in the probe and it worked the first attempt. Then when I the next day
to continue git'r done I keep getting INFO 230 on CAL FIL, CAL FCTR, and
it will not read anything touching the side of C22. I took the probe
apart
Knut,
Unfortunately there is no one crisp answer - one must know the
particular microphone that he has in hand.
There may be a difference between a Kenwood (branded) microphone and a
Heil microphone with an adapter for the Kenwood (or there may not be -
it all depends).
Your Heil IC
Dick, did you receive the K3 case information?
I'm concerned about Comcast blockage, as always.
73! Rose Kopp - N7HKW
[EMAIL PROTECTED]
or
[EMAIL PROTECTED]
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You must be a
Say you have a narrow-band signal at 1350 kHz, the frequency of our
local AM broadcast station KSRO. You could use a sampling frequency of,
say, 1000 kHz. The samples from the 1350 kHz signal would be identical
to the samples of a signal at 350 kHz or 2350 kHz or 3350 kHz, etc. But
if you know
Bob,
I don't think your concerns are warranted. The LCD is an array of transistor
switches which affect the transmission of light by polarizing effects of
their electrostatic field. The actual light is provided by backlighting from
light emitting diodes which are well known for their
I've now responded to all the -many- inquiries about my
K2 and K3 cases. If you've asked for information and
-not- received a reply, please ask again.
If you're a Comcast subscriber, I'll need an alternate address.
73! Rose Kopp - N7HKW
[EMAIL PROTECTED]
Hi All,
I got really excited when the K3 turned up in the post. I suppose you cannot
imagine the look on my face when I opened it all up and lifted all the
contents onto the bench in the shack and discovered that my K3 arrived
without a microphone.
I know, read the order form fully next time.
Gary
Can you find a carbon microphone, such as might be
in an older telephone?
You could probably cobble a working microphone
from it with a load resistor and a blocking capacitor,
and using the +8v from the K3.
Good luck and 73
Bob N6WG
- Original Message -
From: Gary Gregory [EMAIL
I don't know if the same thing applies to all Kenwood branded
electret element mics (should any exist) or not. It will depend on
whether the particular microphone design develops a bias derived
from the pin 5 voltage (which is most likely because AFAIK Kenwood
transceivers do not apply
Ron,
Thank you for the detailed reply. I have shortened your response
below, and inserted my comments.
Ron D'Eau Claire wrote:
Tue, 29 Apr 2008 13:28:14 -0700
I've only received sporadic reports of this happening, and *nothing*
after
suggesting checking the fit of the mic connector, which
61 matches
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