Hello,
My two hikes and operations in the past week were very enjoyable. Who would
have thought we would have 50'F temperatures in January and no snow. I will
never get to use my snow shoes. :-)
29 Dec. 2004 Operation
Ed, WA3WSJ and myself, WB3AAL, hiked in the mile to the pond area near
Hi Tim,
I brought up this question a few months ago. On say 40 meters with a narrow
filter setting I noticed I needed the preamp on to hear very weak signals.
Of course using the preamp on 40 meters made the signal harder to hear so it
was a catch 22. I read all about squeezing a little more
Hi Tim:
You might investigate the external SP2 speaker project listed on the
Elecraft website (Tech Notes Articles hyperlink). Tom Hammond (among many
others) worked on this project to build a prototype external speaker
enclosed in an EC-2. It contains a small amplifier, mute circuit, and audio
I have an Elecraft KAF2, fully built, FS, $35 postpaid to US. Works FB-
replaced it with KDSP2.
Please contact off reflector.
Dennis NB1B
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Tim,
I am one of the folks who have said the K2 audio is low - BUT
The fact is that one of the K2 design objectives was for low battery drain,
and that dictates limits on the audio reserve power available. The K2 audio
is adequate, but by comparison to most other transceivers, it is low. An
G'day,
1.Both birdies in #1400 are at the LF band edge of 10M one is from the
K2 MCU clock the other is from the KPA100 processor clock. The latter can
be put where you wish depending upon your priorities, no birdie at the top
end of 75M or no birdie at the bottom end of 10M, take your
I do have to agree with the comments for the NB in the K2. I do have power
line noise in my QTH which seems to be unaffected by the K2NB, especially
when it falls below an S9 level, which sometimes can be the limiting factor
in completing a QSO.
The majority of the time I have to engage the
My K2/100 S/N 04031 has the birdy at 27.997 and so does my K2 S/N 2676.
Both transceivers are completely up to date with all current mods
installed. I do not see a problem with this and suspect it is just a
harmonic of the 4.000 hZ. oscillator.
73, Happy New Year , Bob VE3XM
In order to get a match at 28019 kHz as has been reported, the KPA100
oscillator has to be shifted to 18434.1
Hi also have the 28029 birdie. I've also got the much stronger 28262
birdie.
I've wanted to eliminate this for some time since there a lot of cw activity
between 28025 and
Looking to buy a spare K2 top cover with speaker, atu, and battery option for a
K2/100. Other options might be considered also. Let me know what you have to
offer. Please contact me off the reflector.
73's, John, WA6YSY
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I just put up an 1/2 wave antenna for 160 meters that is 260 feet long and
center fed with 450 ladder line. When RXing on all bands and moving the PWR
contorl to 11 watts or more so the relay in the PA switches over to high, I get
erratic noise in the receiver. If I back the PWR down to QRP,
Looking for a KAF2 for my K2 - any out there?
Mike
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On Sun, 2 Jan 2005, Marinos Markomanolakis, M.D. wrote:
For example an expensive and/or difficult to build but optimized NB module
will be FAR more desirable and effective feature in a real world Rx
performance improvement rather than a similar DSP module that is already
available from
Hi Thom. Not to prolong the agony (I think that Wayne has already put this
on the list - hope it moves up to a high priority), but I have the same
problem as you do and for general power-line noise, my KNB2 is useless -
however, there is a certain pop, popping, frying noise that is S9+30 on 80
I decided to continuity with the alignment and testing, per the instructions.
The BFO test and alignment went fine. But the next step - VFO Linearization,
produced the following INFO message when I started the procedure:
Info 232. The troubleshooting section says that the message ...is most
-Original Message From: [EMAIL PROTECTED] ---
I've wanted to eliminate this for some time since there a lot of cw activity
between 28025 and 28025. My KPA100 is installed on the K2. The birdie
produces about 1 s unit bar with the pre-amp on. Based on Sverre comments,
how do I
Mike wrote:
Info 232. The troubleshooting section says that the message ...is most
likely to be displayed if you use CAL PLL without first selecing 40 meters.
I am, of course, selecting 40 meters. So it looks like it is not recognizing
the fact that 40 meters is selected.
Another common
FOR SALE:
Elecraft 2 band K1, SN# 416 It comes with 1 filter board only! Your choice
of either the 80 / 40 meter filter board or the 40 / 20 meter filter board.
This is a very clean and well built K1 that works great! It has the high
qualit
y Bournes 10 turn main tuning pot install
Vic, thanks for the reply. Just rechecked it and that's not the cause. It
was in TP1, per the instructions.
- Original Message -
From: Vic Rosenthal [EMAIL PROTECTED]
To: Mike [EMAIL PROTECTED]
Cc: Elecraft elecraft@mailman.qth.net
Sent: Sunday, January 02, 2005 1:41 PM
Subject: Re:
In general less than stellar performance of the KNB2 circuit in some cases
depends on the type of pulse noise that someone tries to eliminate and not to
dysfunction of the board itself.
It is true that the KNB2 tends to be picky on the type of noise that it is
most effective against, but for
It says to linearize with the rig on 40 meters. What it doesn't say is that
40 meters needs to be workingg. As your VCO voltage reading on 40 meters
is broke, so will be the linearization.
You've got to get the VCO working first, I imagine.
Dan / WG4S / K2 #2456
snip
BandLow Freq.
Mike,
Try this - first go the 4000 kHz and adjust L30 until the voltage raises to
somewhere between 7 and 7.4 volts. Then see what the voltage is when tuned
to 7000 kHz - expect something around 2 volts.
If your voltage at 7MHz is still 0.03 volts - you have a problem. Look at
the
Yes..its the HV osc...I can make a theramin out of the diode/capacitor
strings. Sadly..there is no trimmer cap that I can tweak. But lowering
the power to get the KPA-100 to drop out kills the birdy which is fine in a
pinch if there is a new country ... Like the 5T5 that has been hanging out
on
For what it may be worth, if you have an older KPA100 (not sure what
'vintage' actually qualified it as 'older' though, mine's as old as the
come... an FT unit from before they hit the streets), but there is a mod
(available from me, and I think somewhere on the Elecraft web site) to help
Hello all,
I'm very pleased to announce the new ARCBS DIGI Award. If you operate
any of the digital modes, check this award out at:
http://www.arcbs.org/files/ARCBSadministration/ABSawards.html
72/73,
Ed, WA3WSJ
ARCBS # 1
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Partial repeat of Marinos Markomanolakis, M.D. 2 Jan/05
For a receiver of the K2 caliber, I believe, it is worth every penny and
construction effort, even if it means incorporating a pre-made surface
mount module for the NB in order to improve on the NB area which seems to
be
suboptimal.
For
I have another funny phenomenon related to the KPA100 and the DSP. I mentioned
it before, but no one commented. I would like someone to check and see if they
notice it too. Here it is:
1) The KPA100 must be activated (11 watts will do it, more power doesn't change
it).
2) The DSP must be
Steve AA4AK asked:
Is the Astron RS-35 series adequate to power the 100 watt version of the
transceiver? (I'm sure it supplies enough current. I was wondering if the
ripple and regulation are adequate.)
---
As you suspected, it's way overkill! I use an Astron 20 to power
The K1 SN# 416 listed earlier today has been sold!
73, Don
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Good Evening,
I have aligned my K2 according to the builder's manual. So far I have a great
working 80 and 40 meter K2. The other bands are puzzling me and after a few
days searching and head scratching I'm out of ideas.
Using an antenna and/or atmospheric noise for receiver alignment, I have
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