David,
Yes, the peak is VERY broad. You may have to connect an AC voltmeter across
the speaker connector to find the peak if you cannot discern it by ear. The
peak is normally 1 to 1 1/2 turns down from the top of the can. Be certain
you are using CW mode. If your peak is right at the top of
I had been having problems with my KAT100 and hoped the KPA100 upgrade
would help. I installed the upgrade and all works well with an external
tuner other than the KAT100. But, the KAT100 problems persist.
Here's the problem. The KAT100 tunes fine on all bands into my 50 ohm
dummy load if
Hi Guys,
Due to my clumsiness in removing my blown finals I have managed
to damage the PCB of my K2. I managed to remove half of the land for the
Base of Q7 on the top of the PCB, and slightly lifted the land for the
emitter of Q8 on the underside of the board. I still have
John,
I believe the problem is entirely in your KAT100.
Check all your connecting cables first thing (do a continuity test on both
the center conductor and shield and check for shorts). It sounds like your
tuner is operating into an open circuit or a shorted one.
If you have an antenna
After downloading CocoaModem on my iMac and listening and learning, I
now wish to actually Transmit in digital.
The only mode I DON'T see on CocoaModem (that I know of) is MFSK.
It seems RigBlaster has a near monopoly on interfaces. Is there an
opportunity for Elecraft to produce a kit to
I need to build a crystal oscillator to signal trace my K1. Does anyone
know of a good source for crystals?
73
Larry
KB5DXY
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Steve,
I am not familiar with any of the board repair materials, so without any
experience with them, I would go the safe route and add wires to whatever is
left of the PC traces - scrape off the green solder mask to solder the wire
onto the remaining trace or run full length point to point
International Crystal and Cal Crystal might be sources.
Better still, purchase and build the XG-2 kit!
73! Ken Kopp - K0PP
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I am selling an IFR-1500 Service Monitor on ebay (item=32004992).
I listed it here a couple months ago, with no success. But would not
want any friends here to miss out if interested...
Niel
WA7SSA/4
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WANTED: Mint K1 with KAT1, KNB1, K1-4 (40, 30, 20, 15) with all
documentation and manual from a non-smoking QTH. Photos appreciated. Finger
dimple and backlight mod will be considered as well as tilt stand. Contact
Bob, K3SRO at [EMAIL PROTECTED]
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Why produce a kit when anyone capable of building a K2 can knock up a
satisfactory interface using a handful of junk box parts? I have never seen
the point of the RigBlaster. I admit that I'm now using a RigExpert
commercial interface but the reason for that was to free up the sound card
and
My microHAM USB interface II works very well.
It's supplied with a beautifully-built cable that mates
with your rig of choice.
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
or
[EMAIL PROTECTED]
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Hi John,
iMic don't isolate the Mac-ground to TRX-ground. It's better you have
interface.
72 de
'Karl'-Heinz, DF7KHK
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Don -
Thanks for the guidance.
Check all your connecting cables first thing (do a continuity test on both
the center conductor and shield and check for shorts).
OK
If you have an antenna analyzer, check each cable with it while connected at
the far end to a dummy load.
OK
After checking
While I am waiting for my XG2 to arrive I would like to discuss the
problem that I am experiencing. On 20M my K1 is outputting on 20.17 mhz
with gravelly tone, the is VCO set at14.00 mhz. All other bands are on
frequency (+- a couple of K) with pure tone. Also with a 100' wire
antenna, I am
Hi Johnny,
We started shipping W1s today (Fri).
The latest W1 manual is now on our manual download page. It includes the
complete serial command set for the W1.
We do not supply a serial cable with the W1, since it is very easy to
make. (It is a 3.5mm stereo plug on one end and a DB9 on the
Just finished building the K2 this past week.
I have alligned and proceeded to check Power output.
Had a problem. With help from Gary AB7MY, I found I did not install
Z1...therefore one of my problems. I installed Z1 and recheched solder
connections
on the Band Pass Filters...
Now got proper
Fred:
I find the K2 on SSB is perfectly adequate, I even get compliments on audio
quality. No problems in DX pile ups. I'm using a Kenwood MC-60 desk mike and
previously a Kenwood hand mic, an MC-43 perhaps?
And if you're looking for a 100 watt amp, the KPA100 is the only game in town.
I use
John,
Let's try that measurement of U3 pins 6 and 7 again, this time with the
KAT100 in CAL mode and after pressing TUNE. Those pins should read zero
volts during transmit when th epower is set for 11 watts or more, but should
go to a higher voltage if the power is less than 10 watts.
If that
Don -
I have gone from bad to worse. I remelted some solder joints, replaced
the 1n5711 diodes, and re-calibrated the tuner. It seemed to work for a
bit, but problems returned. But now the K2/100 also has problems.
With the KAT100 I tuned the antenna to 80m. It worked OK on QRP, but
John,
It sounds like your KPA100 is self oscillating when on 80 meters (and
perhaps other bands too).
That fact alone will drive your KAT100 crazy.
An oscillation problem will not show up on a dummy load because the dummy
load is not frequency sensitive (an antenna and tuner will be frequency
Thanksgiving is this coming week ... but we don't need no stinking
turkey - we got Pork and plenty of it!
This Sunday evening, the Flying Pigs Amateur Radio Club International
will be holding its monthly Run For The Bacon. This is a friendly, two
hour QRP CW Sprint, which is open to ALL
(I sent this earlier and it didn't seem to get posted. If it is a
duplicate, sorry for the bandwidth.)
While I am waiting for my XG2 to arrive I would like to discuss the
problem that I am experiencing. On 20M my K1 is outputting on 20.17 mhz
with gravelly tone, the is VCO set at14.00 mhz.
On Sat, Nov 18, 2006 at 07:32:44AM -0500, Don Wilhelm wrote:
David,
Yes, the peak is VERY broad. You may have to connect an AC voltmeter across
the speaker connector to find the peak if you cannot discern it by ear. The
peak is normally 1 to 1 1/2 turns down from the top of the can. Be
David,
It sounds like either will work fine - use the one that is more convenient
and does the job.
73,
Don W3FPR
-Original Message-
I have a software audio analyser (xanalyser) which I could use to find
the peak and I have a DMM which should measure audio frequencies just
fine (It
Larry,
I assume a 4 band filter board.
Are the trimmers on the filter board set near the center point? If not,
realign the 15 and 20 meter filters. It is possible to align the frequency
of the higher band too high and end up with an off frequency signal. Set
the trimmers to the center, then
Don -
Yes, let's settle the KPA100 first as that's the latest changes I have
made by doing the upgrade kit.
Q6 has the correct voltages except for the drain on transmit. Manual
says 115v and I get 135v. Voltages on Q7 look the same as in the
manual. I measured R11 which feeds the Q6
Well, I finished the KSB2 option, turning my bare-bones K2 into a K2/SSB. I
was expecting mediocre SSB performance. What I got was a pleasant surprise.
Modulation level - No problems driving the rig to full power output. I don't
have to shout, I just speak and the rig responds with RF
Good Evening,
Twenty meters was fantastic this week. Forty meters has been good
too. On twenty I've been turning down the gain and pushing the headphones
very far forward. This makes hearing the sidetone more difficult but it
does offer some protection from the very loud signals. The
Good evening folks. I thought I would pass along a little information to those
of you who are contemplating the installation of the K2 DSP option. First let
me say that this option is well worth the price and has many features and a
wide range of adjustments for all three popular modes. But
The Sierra is cousin to the K1. A worthy radio of it's day (not that longs
ago). I bought it after much research in a quest to buy the best of the
best in QRP and I was not dissapointed. It has been on many campouts and
logged many a QSO.
I dusted off my Sierra today and found that it was
On Sat, Nov 18, 2006 at 10:55:12PM -0600, Tom Hammond wrote:
David:
For finding the peak, either will work, however, for finding the best
Signal-to-noise ratio, the xanalyser will probably be better because
it should allow you to see both the signal AND the background noise,
so you can
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