I know, this is about as far from a K2 as one can get, but you guys are the
only people I know who understand electronics.
I'm trying to diagnose and fix a Sony laserdisc player (the old analog 12
babies) that I've owned since new. The player worked fine until I didn't use
it for a couple of
Hi
I thought I may have had a RFI problem with my K2/100 that I recently bought
but it wasn’t that.
When I hit the tune button sometimes the K2 would start tuning and then half
way through do a reset.
In the end I measured the current into the 100 watt stage and found that
as the tuner tried
I have the Ten-Tec Orion supply which is an Astron 20A and also experienced
that symptom as recently as yesterday. When I run on a car battery I do not
notice it.
After the reset I lost my sidetone. Luckily I asked Don W3FPR for advice
before I tore the radio apart. He pointed me to the
I will be out of town until Monday, and out of email contact as well. I will
answer all emails by Tuesday. Have a great weekend.
Alan
W1HYV
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HI Tom
It seems to happen more when the ATU needs to work harder to find a match,
I have a 40m Windom up here and I can load it on all bands with the K2, but
it has to work hard to get me a match on 160m/80m and this is normally when
it happens, its not a problem since I put a float battery
Used to have a Windom up here. The RF from it got into everything:-
K2 PSU, Computer, UPS, Telephone and Alarm system.
Changed to a balanced (Doublet) antenna, end of problems.
73
Stewart G3RXQ
On Thu, 8 Dec 2005 12:04:13 -, Paul Webb wrote:
HI Tom
It seems to happen more when the ATU
Thanks Vic, I'll look it over. If nothing else, it
would be a great backup antenna when the winds rip the
other one down!
73,
Julius
n2wn
I built a ferrite loop antenna for 160, and it is much
quieter than my inverted L. See
http://www.qsl.net/k2vco/ferriteloop/ferriteloop.html
...at least,
Off center feeding of a dipole antenna greatly enhances feed line radiation
which most often causes a new set of problems. This is why you usually see
the Windom style type antennas having to use some form of a line isolator in
the feed line. It's much simpler to stay with center feeding
I guess the way to deal with it is to add more tuned
radials in parallel and a switchable base network, but
I would like to avoid any more control wires that have
to go through my lightning suppression panel (I can't
pass DC through the coax, either). Does anyone have
any suggestions?
* * *
Vic
However, my questions (finally) are these:
If I have a great Rx
only antenna won't I be able to hear many more
stations that I probably won't be able to work?
Maybe not many more, but certainly more if your Tx
antenna is lacking. That would be the case no matter
your power level.
Okay, so
N2CQ QRP CONTEST CALENDAR
Dec 8, 2005 - Jan 8, 2006
~~
40 METER FOXHUNT - Each Friday 0200z to 0329z
(Thurs 9 PM to 10:29 PM EST)
80 METER FOXHUNT - Each Wednesday 0200z to 0329z
(Tues 9 PM to 10:29 PM EST)
Info:
If the K2/100 is properly fused according to the instructions, it should not
draw more than 20 amps without opening the fuse!
Perhaps the crowbar voltage on the supply is set too low?
Why not tune up at reduced power?
Ron AC7AC
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Elecraft
I'd like to thank everyone for their suggestions on how to make my 32'
vertical with 8' elevated loaded radials perform on 80 and 30 meters as
well as 40.
It's clear I will have to do some major surgery on the antenna to add 80
meters, such as a trap plus a toploading wire, or a movable wire
Paul Webb wrote,
I thought I may have had a RFI problem with my K2/100 that I recently bought
but it wasn’t that.
snip
But I found that my 20 amp PSU could not cope with some of the very short
current drain that it was asked for and dropped its voltage which caused the
k2 to reset half way
Steve, W2MY wrote:
Just a note to all about Astron Power supplies in general. The Astron
linear power supplies that I have owned were very nice, but please realize
that the 20 in in their name, I believe, is for a tempory peak amount of
amps...
I'm preparing to order a Hakko 808 desoldering tool and am wondering if I
will also need to obtain a variety of additional nozzles to accomplish the
usual day to day tasks, or does the supplied tip leave little to be desired?
How
frequently do nozzles need to be replaced?
Thanks. Bill,
Is the supply linear or a switcher?
So far, no one has asked!
On Dec 7, 2005, at 7:15 PM, Elmore's wrote:
I am in the testing phase of my KPA-100 construction using an
Astron 20A power supply. When I attempt to adjust the power of the
K2 in Tune mode it will reset at levels between 40-90W
If you already have a Polar Bear Activator Certificate,
grab a few endorsements for it!
Check it out at:
http://www.wa3wsj.com/files/PolarBears/PBActivatorEndorse.html
72,
Ed, WA3WSJ
Polar Bear #1
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I have enjoyed reading the problems of others but now its 'the winter of my
discontent' as they say.
I've successfully built the K2, KSB, 160 converter, DSP and finished the ATU
(needs testing and not connected). I am now finishing the K100
I have got to the end of the test where one fires
So in the end I have a 17AmHr Gell pack here that I float across the PSU’s
output this will help the PSU cope with the odd high current pulse and also
act as a standby Supply in the event of a mains failure.
That's what I do, except that the battery is bigger (80 AH or so). My
theory is
-Original Message-
The preferred method of padding the BFO capacitors is to
maintain the ratio between C173 and C174 by paralleling them
with capacitors. A single capacitor from the junction to
ground will be in parallel with the series combination of
C173 and the varactor D38
Ron D'Eau Claire wrote:
Egad! The ARRL did this a couple of years ago and I thought the firestorm it
kicked up would never stop! They finally took the poll off-line in the
middle of the run after it appeared that someone set up scripts to vote
automatically and stuff the ballot box endlessly!
I have a K2 (about 2 months) and think it's a great tranceiver. I live in
Loveland, Co. My brother lives in Forest Grove, Or and is thinking about
getting an FT-1000 MKV Field or a TS-2000. I'm trying to convince him to get
the K2/100 with all the options (and I'll build it for him).
He
Sverre:
This fix (that you describe) worked for me on a K2 that I built within the
past year. The LOW BFO freq was just slightly high and putting a low value
cap as you describe lowered the LOW freq to within specs, didn't change the
high BFO freq, and did not cause any instability. I don't
On Wed, 7 Dec 2005, Fred Jensen wrote:
I remember that. Nearly every list I was subscribed to filled with comments
on each side (not all civilized) regardless of the list subject. I wonder
why they are doing this again, given that the results are worthless, even
without the Chicago Voting
Sverre,
I have not tried that small capacitor from the junction of the crystals and
L33 so I cannot comment on it from that standpoint.
What I would like to state is that when one pulls a crystal by any method,
the stability becomes worse as the amount of pulling becomes greater. One
should be
John,
First, check to be certain that you increased the CAL CUR setting to 3.5
Amps - the KPA100 adds to the current drain of the base K2 and the limit
must be increased from the default of 2.5 Amps.
Having said that, let's get down to some other 'facts' - first, the Hi-Cur
is only an indication
Vic,
A series circuit resonant at 30 meters will do a good job of shorting out
the 40 meter inductance (no relay) - but the inductor used for 40 meters
would have to be modified to compensate for the effect of the series circuit
when on 40 and produce the same resultant inductance.
73,
Don W3FPR
Don Wilhelm wrote:
A series circuit resonant at 30 meters will do a good job of shorting out
the 40 meter inductance (no relay) - but the inductor used for 40 meters
would have to be modified to compensate for the effect of the series circuit
when on 40 and produce the same resultant
Vic K2VCO [EMAIL PROTECTED] wrote :
I would like to use it on 80m and 30m as well. My first try was to
simply use the KAT100 to tune it. It tunes fine on both bands (1:1 at
the rig), but results are fair-to-poor on 30 and poor-to-worthless on
80.
Can you clarify are the radials elevated
Hey Ron,
I think that may be a cue for you ;) But if Ron is out and about I
live not too far away in the suburbs of lovely Buxton, Oregon. I have a
K2/100 which gets used now and then.
73,
Kevin. KD5ONS
On Thu, 08 Dec 2005 21:26:46 +, [EMAIL PROTECTED] wrote:
I have a
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