I held this for three days deciding whether to send it or not – here ‘tis.
I went from TT Orion - 3 of them at various times - to K3 . I was more than a
little concerned by size and Hold/Tap functions etc - I read all the stuff
from Sherwood ,keep reading stories here about KSYN3A wonders.
He
The external reed relay /miniature relays are OK IF they are keyed by the
key line AND the RF is delayed a few ms from key line down.(K3 does this)
The diode limiter circuits like the AS and others like that don’t have this
limitation.
BUT I would be interested in the OFFICIAL Elecraft posit
As the "Hot -Rodders " used to say (still may say ) - if it don't run ,
chrome it "
Hank K7HP
-Original Message-
From: Harry Yingst via Elecraft
Sent: Monday, August 03, 2015 8:48 AM
Subject: Re: [Elecraft] I wonder how many folks have had buyers remorse ona
K3/K3S purchase?
There
AND - with the tuner you get a second SO239 antenna port - from front
K3/K3S
panel switch.
May sound trivial - but eliminates one more "accessory" hanging on the K3 .
AND great place to connect a dummy load for quick checks.
K7HP
-
From: Phil Wheeler
Sent: Sunday, August 02, 2015 10:49
a real switch. Nice
to have gear so trouble free you
forget what the back looks like Some part of the PS HAS to be on for
voltage for the logic.
Thanks to all who responded
Hank K7HP
-Original Message-
From: Hank P
Sent: Saturday, August 01, 2015 12:49 PM
To: Elecraft Reflector
Su
Since we are in monsoon season here in AZ - if any storm is in area or
predicted - I disconnect everything - both at tower and at shack wall.
I noticed this morning that when I plug the KPA500 back in -(its on a 240
circuit all by itself) I hear what appears to be an initial transformer
mag
Joe - I use "Fixed Tune" mode because I just like that display the best -
BUT I just checked "Tracking Mode" and I see about a half S unit noise when
I tune - I do not see any in "Fixed Tune" . UNLESS I look with the K3 on a
dummy load so no external antenna noise at all. Its visible there but
Are these 0805 or 0603/0604 or even smaller chips ?
Hank K7HP
Received my KBPF3 mod kit for LF today. Caps are very small. This might
be my first SMD, at least this tiny, work. With as big a magnify glass that
I can find I can see the caps and after some effort get them on top of the
One more point about "loose" screws or nuts and Loctite. Any place the
hardware is going thru a PC board (or any material that will cold flow at
the pressures we get) , after a period of time there will be some "cold
flow" of the board and Loctite will not fix that. Hopefully the split lock
w
Along this subject of BPF3 - When I assembled my K3 with sub rx - I put the
BPF3 in the sub rx - on the assumption that it might degrade the out of
band main rx protection with some filter blow by if I put it in the main
rx path. Now I wish I had put in in the main rx so I could use the P3 out
replace "where" the . with "what" the
-Original Message-
From: Hank P
Sent: Wednesday, April 01, 2015 11:11 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 artifacts
Couple questions:
1.Can some Guru tell me where WHAT the little spikes
Couple questions:
1.Can some Guru tell me where the little spikes at +/- 300 and 600 cycles
from the CW carrier (down about 40 dB) are when looking at a -73 dBm from
a XG1 or XG2 ?
2. I am curious what you typically see for the delta in dB between the
average baseline say at 10 msec av
I read that article and was hoping Wayne or one of the guru guys would
comment . It is probably picking specs out of the pepper , but it seems to
me that testing a K3 around 5300 khz means there is essentially no benefit
from the ham band bandpass filters the K3 uses - Would like to see those
FWIW - a simple restore of the current config fixed it - live and learn.
73 Hank K7HP
-Original Message-
From: Hank P
Sent: Sunday, February 22, 2015 12:39 PM
To: Elecraft
Subject: Re: [Elecraft] K3 no SSB receive
On any band CW/DATA/AM receive normal both main and sub dead on SSB
On any band CW/DATA/AM receive normal both main and sub dead on SSB
either sideband. Can watch the P3 and signals obviously still coming out of
the IF but rx goes dead when MODE is tapped to USB . And I mean DEAD - not a
whisper phones or speaker RF and AF gain wide open. NB/NR on or off no
OK what did I do ? Been working on cw and external noise canceller for
couple days - and just tried to listen for the TI9 on SSB - both main and
sub rx are dead. All other modes fine , Just USB or USB dead - all bands
absolutely not a trace of audio - did a couple on -off cycles no joy .
The 2
eller , and sending email - too much at
once - Thanks to NR4C for catching my goofup.
73 Hank K7HP
-Original Message-
From: Hank P
Sent: Thursday, February 19, 2015 8:22 PM
To: Rick WA6NHC ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Adding the KPA500 with the KAT3 installed
Don
Don't forget with the KANT3 you have choice of two TX antennas -- just put
it in bupass and away you go .
The KAT you only have one TX ant .
I can run a higher power amp by moving one coax switch to one or the other
amp .
Hank K7HP
-Original Message-
From: Rick WA6NHC
Sent: Thurs
Gee after reading several pages of discourse on split - I have reached the
conclusion that it really was all the radios fault when in the heat of
battle or a quick band change ( Hey the bandswitch buttons on the KPA are
worth the price of the KPA for that alone ) I did not notice I lost the
FWIW - I happened to check my K3 last night - it had been on for a couple
hours and it had drifted off about 4 cycles at 10 mhz from where I set it
about 6 months ago - I have the KTCXO3-1TCXO - that amount of movement is
most likely crystal
aging - the K3 is just over a year old.
I have
Also if the antenna is really flat - less than 1.2 when the tune operation
starts - - the KAT500 bypasses the tuning network.
AND if the SWR after tuning is worse than the antenna by itself - the KAT
will bypass. Those bypass settings are stored in memory .
That confused me until I RTM again
Get a KPA500 - you get bandswitch buttons thrown in for free.
Then I have M1-M4 set up modes wise on each band
At my age I cannot remember which K3 number is which band.
Now I just peck the band buttons on the KPA.
K7HP
I have my K3 set for Quick Memories, and use that for band switching.
There is one thing no one has mentioned - I work a guy fairly often who can
send with either hand - he tells me he taught himself to do that so if he
had a stroke that affected one side he was still in business.
Hank K7HP
__
Elecraf
There are certainly other possibilities.
Making an amplifier unconditionally stable with any combination of source
impedance ,load impedance , drive level , and supply voltage and achieving
any reasonable gain , efficiency , bandwidth , and able to withstand about
anything a customer can drea
I second the motion -- Hank K7HP
-Original Message-
From: Jay
Sent: Tuesday, October 07, 2014 4:39 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Many Thanks to Howard K6IA Elecraft Support
I have dealt with Howard on a few occasions
He is a wonderful standard bearer fo
Here is a message from the Elecraft GURU that may help.
From: Lyle Johnson
Sent: Friday, July 04, 2014 9:47 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 - noise reduction query
There is an incredible range of characteristics to unwanted "signals"
that we loosely call noise.
If you are talking about SSB on 80 and 40 - I was playing with trying to
copy
the K2M on 40 M SSB last nite thru all the qrn - something to play with
is the SSB bandwidth and shifting the band- it makes a lot of difference
depending on how the guy has his audio tailored or how his voice is.
You
I have two big time dxers/contesters near me - on 160 , one is -8 to -9 dBm
and the other is -10 to -11dBm . Folks , thats in the 50 to 100 mv area at
the poor K3 .(S9+60 to 70 area) Just for fun of it , I can easily see both
on my scope hung on my antenna.
With the 250 hz 8 pole - I could
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