Shane,
It is my firm belief that the audio response should be controlled by the
transceiver, and not by the headphones or speakers (which should be
wide-range).
The more recent K3s (SN 3626 and above) contain the upgraded DSP board
which has the audio Low Pass filter to roll off the AF response a
Ed,
Hanging it out the window is the best idea.
That "counterpoise" is the other half of your 40 meter antenna - so if
you want best results, put it up in the air at whatever height you can
manage - treat it like an antenna radiator - because that is exactly
what it is.
Caution: an antenna w
The boom is something I could really do without as I'm happy w/ my
mic. I'm much more interested in the headphones themselves. I've been
reading DX books and it would seem that most headphones are designed
for high fidelity listening between 50 and 20,000 Hz. CW it says runs
from 250 - 1000 Hz and
I'm well into the development of the K3 Memory Manager for Mac (and possibly
Linux if I can get all of the custom UI elements to work properly under all
flavors of Linux). Really. No kidding.
http://w4smt.com/k3me.jpg
I'm eyeball deep in the KPA Utility and XG3 Utility for Mac/Linux at the
mo
On 8/11/2011 7:46 PM, Wayne Burdick wrote:
> It's about 20-25 dB by the time you get to 500 kHz. This helps protect
> the K3's PIN-diode T/R switch from extremely strong low-frequency
> signals.
The USCG shut down LORAN-C last year, and the Middletown CA station no
longer overloads everything, r
Guy
Thanks for the advice. I think I'm getting out okay. I hooked up my
MFJ-267 Watt meter dummy load and when I have the power set to 10 watts I'm
getting close to 10 watts forward but the reflected is about 5 so that tells
me the antenna is the issue. I have a KAT2 ready to install so I would
with respect to your comments about "Mac memories", and lack of software for
the Mac.
What are the K3 software commands that allow you to set and retrieve the memory
settings?
Thanks, Barry K8LEF
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Ed,
As an alternative to the antenna analyzer, use TUNE on the K2 and adjust
the antenna tuning unit for the lowest SWR possible - note what that is
- and if it is 1.0, the K2 will indicate the power output properly.
Note that the base K2 uses only a diode detector. What that means is if
the
On Aug 11, 2011, at 7:33 PM, Bruce J. Howes wrote:
> Thanks Wayne, replies/questions below.
>
> Modes - found the FM, currently shut off, so perhaps I should just
> create a macro to mode switch?
You could. But since there are MODE UP/DN switches, I think you'll
find that you never need more
Ed,
A 32' wire with a 16' counterpoise is not a resonant antenna on 40
meters. It will not load well unless you have an antenna tuner to
turn it into 50 ohms. I have a KAT2 in my K2 #1239 to allow me to use
"miscellaneous" antennas. I am assuming that by your calling it a
"counterpoise" it is not
Thanks Wayne, replies/questions below.
Modes - found the FM, currently shut off, so perhaps I should just create a
macro to mode switch?
AM Broadcast - yes, that explains what I noticed, seems to really attenuate
anything below 1200 Kc
Memories - Using on a Macbook Air, I like Parallels, but t
Hi Bruce,
> Modes
> As I used my K3 on LSB, AM and CW only, wonder if there is a menu
> setting or trick to shutting off the unused modes? I'd like to not
> have to scroll through them. Would a macro be the way to go here?
You can turn off FM mode (CONFIG:FM MODE).
>
> AM Broadcast Bands
>
Hi, all concerned:
I'm glad to report that the problem seems to be cured.
I saved the params with the K3 utility.
I performed an EE INIT, which by itself eliminated the syndrome.
Then I reloaded the saved params. Syndrome returned.
To be thorough, I downloaded and re-installed RV4.39 f/w.
Hand-f
Don,
I do have the Elecraft dummy load so I will look into that. I will also try
going to 10 watts and work down.
I don't have an antenna analyzer at this time, sounds like something else I
will need to pick up.
I'm using a 32' wire with a 16' counterpose which is hanging out an upstairs
window
Hello all,
Modes
As I used my K3 on LSB, AM and CW only, wonder if there is a menu setting or
trick to shutting off the unused modes? I'd like to not have to scroll through
them. Would a macro be the way to go here?
AM Broadcast Bands
I like to listen to late night AM on the broadcast bands, bu
Ed,
First trial, connect a dummy load and do a TUNE - what does the K2
display tell you? It should be close to the requested power and with an
SWR of 1.0. If your dummy load is the Elecraft DL1, measure the voltage
at the diode and calculate the power output from that.
The above will tell yo
Hello Mike,
The station I was trying to contact is 425 miles to the Northwest of my
location. 40m propagation seemed good, I was receiving other stations on
40m. I'm using a long wire for now and was putting 3 watts out according to
the power reading.
I don't have a watt meter but MFJ has a QRP
It could well be band conditions. What do you have for an antenna? How far
away was the other station?
If you have a watt meter, you might check to see you are getting the proper
power output.
Check all the settings, for example having RIT or XIT on unexpectedly might
make getting contacts diffi
Hello,
I think I might have a problem with K2 7109. I arranged to call another K2
owner on 40 meters and was not heard, additionally I did not receive his
call. So I'm not sure if it was propagation or my radio. What makes me
wonder is I have called on the SKCC Elmer frequencies with no respons
Never on K3/100 S/N 642 [just loaded 4.39]. I use the rear headfone and
mic jacks exclusively ... putting them there in addition to the front
panel was a genius moment!
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org
On 8/11/2011 5:0
Gents,
I am NOT seeing this behavior on my K3/100, SN 4401 w/4.39 firmware
installed (just this past weekend.)
As best as I can recollect, it has never changed when plugging in the
headphones.
73 de Jim - KE8G
- Original Message -
From: "Phillip Shepard"
To: "Bruce Beford" ;
Sent:
It actually does it with a blank phone plug inserted. As soon as the plug
goes in, the S meter jumps up. The signal itself does not change, just the
meter reading. I have not examined the area around the jack inside to see
if there is anything odd. That may be next.
Phil
-Original Message
> When I plug my headphones into the K3 the S Meter jumps up about 5 s
> units. This unit is running 4.31 FW. I obviously have not tried new
4.39.
> Just curious if anyone else has seen this.
> Mike W0MU
My K3 s/n 559 running 4.39 does -not- exhibit this behavior. As far as I can
recall, i
> Is the KAT3 necessary for Diverisity operation ?
No. What is required is the sub receiver and a separate antenna feeding
that. By definition diversity uses two different antennas, feeding
independent receivers. The KRX3 comes with a cable that provides for a
separate BNC input to the sub RX. Th
Is the KAT3 necessary for Diverisity operation ?
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Juan,
I have used the Bose QuietComfort (headset only) and they work FB. However,
the noise-canceling feature is not very useful in my ham shack. It does
little to reduce random noise like people talking, dog barking, kitchen
clanging, etc. It's really more suited for cutting out the drone of air
Interesting. I am using a K3 without the 2nd receiver at the moment.
The full blown K3 is up in Montana. This was my 2nd SO2R rig. I kept
looking over and wondering what was causing so much noise on the band
but there is no noise just the s meter reading oddly.
Using the Heil Quiet Phone P
Hello,
I would like to use this logic outputs for switching multiple bands sequencer
(I use k3 in HF, 50 with coax relay, because I have only one ANT and 144 with
transverter).
I have tried with CMOS NOR and AND gates, but doesn't work. Tried also with PIC
16F628A, but no way to make it work.
D
Udo:
I second everything Ed said about the K3 for EME and meteor scatter. It is the
best radio I have used. I also use it in SSB mode, fliter wide open.
I have the 6 khz crystal filter installed, and have worked EME with my small
station even when W6YX is 40 over 9 a few kHz away.
The passband
Mike,
My K3 has done this for quite some time. I currently have 4.36 loaded, but
it was there long before that. I put it on the reflector before, but I
never could get a resolution to it. I'm all ears on this.
73,
Phil, NS7P
-Original Message-
From: elecraft-boun...@mailman.qth.net
[
When I plug my headphones into the K3 the S Meter jumps up about 5 s
units. This unit is running 4.31 FW. I obviously have not tried new 4.39.
Just curious if anyone else has seen this.
Mike W0MU
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David,
When I built my house in 1997 I had it inspected by the County as required.
Four years later, while replacing a kitchen receptacle, I found that the
receptacle did NOT have the safety ground attached to the ground terminal. The
wire was in the box, but not connected.
I then took the l
Hallo Udo,
The K3 is a GREAT rig for JT65, because it needs no external interface. It is
the
best radio I have ever used for JT65 because of the very flat passband - I can
easily
see callers plus and minus 1000 Hz.
I have tried the Data Mode, but usually use the USB position because I like t
As an aside, a lot of equipment uses electronic transformers and the "floating"
outputs are at 'half line voltage' as if fed from a full wave bridge rectifier
and capacitivly coupled across the transformer winding. It fully meets to
safety specifications but is a noticeable nip by hand and an
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