Any hope of a P3 (no bells and whistles) with the PX3 form factor?
73 de Brian/K3KO
-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2247 / Virus Database: 3722/6804 - Release Date: 04/05/14
__
Please define effective. This is a hobby.
Except for Emergency communications, missing a character or two doesn't
mean squat. For contests, digital error correcting protocols are
non-starters. For pileups, I doubt any error correcting protocol will
be of use.
73 de Brian/K3KO
On
Looking at specs show SWR 2:1 and 160-10M.
Could live with not having 6M but the 2:1 SWR spec may be unacceptable.
73 de Brian/K3KO
On 3/3/2014 06:18, Dr. William J. Schmidt, II wrote:
Done. You can buy them here:
http://www.communication-concepts.com/index.php/splitter-combiners.html
Dr.
and tell me what max SWR the
transmitter will work into without a tuner?
73,
Tom - W4BQF
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of alsopb
Sent: Monday, March 3, 2014 7:54 AM
To: elecraft@mailman.qth.net
Subject: Re
Thanks guys. Looks like the W8JI design is easiest to build.
Mouser has the binocular cores needed.
73 de Brian/K3KO
als...@nc.rr.com wrote:
A while back there were some postings on recommended commercial 50 ohm two
port splitters for receiver use.
Can't find the postings. Cheaper
A while back there were some postings on recommended commercial 50 ohm two port
splitters for receiver use.
Can't find the postings. Cheaper is better. Loss for my application is
relatively unimportant since they will be signal generator driven and followed
by step attenuators. Simple HB
I rearranged things to shorten up the K3 supplied cable to 3'.
The difference between just the RX ON (1.11 amps) and 100 watts (18.77 amps)
ended up being 0.6 volts. Supply is an Astron 20A.
Previously with a 6' cable the difference was 1 Volt.
Interesting thing is the current draw at each
Have it working.
K3 accessory plug pin 1 to DXP38 FSK connector.
Other things:
1) K3 transmits RTTY upside down with the DXP38. You must invert the
transmit polarity somehow --e.g. via software package.
2) Turn DXP38 on before the K3. For some odd reason, the PTT hangs in
transmit if you turn
Well, taking apart a perfectly working radio is bound to be barrier to doing
this.
Had my concerns too.
Put it in today. Seems to work AOK.
One step in the manual that saved my butt was check for connectors that may
have pulled out during the subrx assembly install. Indeed one did.
Amen. Except for the stereo part so us non-lobotomized people can still use
mono audio. (Like we have two ears to hear with for good reasons)
Looked at the schematic for the audio output. Earphone output is coupled
from the IC via caps only-no series resistors. I was considering wiring the
two
Apparently I need some help in trying to use this dBV capability with on the
air signals.
For example, using it as an AGC off relative S-meter with digital readout
to run some antenna pattern checks for skewness etc.
I've used it just fine in lab type measurements with a constant signal
source.
When turning on the K3, the dbV readout (AGC off) reads +99.9. Tech menu is
on and other parameters one can display are OK.
It doesn't change until I get impatient and start tuning around, turning
menu main on/off or switching between parameters with the VFO B knob. It is
not clear what brings
stabilize first, and then the dBV shows the
value compared to the last AFV value. Page 36 of the manual shows more
details.
73 's Steef PA2A
K3 1184
- Original Message -
From: alsopb [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Tuesday, September 16, 2008 2:47 PM
Subject
The sub-rx document says your loose 3db of signal in the main rx when
switching in the sub rx when sharing the main antenna.
For really weak ones, you'll probably want to have the sub-rx off unless you
have a separate antenna for the sub-rx.
Brian/K3KO
Howard..K2HK wrote:
Since your
When they are looking into FSK, please fix FSK POL so it inverts TX polarity.
2.38 seems to have fixed a small assymetry in the peak response of the RTTY
DPF peaks for the 250 Hz filter. It was not due to a small offset in the
roofing filter.
de K3KO
Dave W7DPW wrote:
I'm just
Those who absolutely want to use the K3 in a bug mode for CW might try
this-- at your own risk.
Single lever paddles only.
1) connect paddle dit side to the keyer jack dit side
2) connect paddle dash side to key jack
3) ground to paddle common.
Dual lever paddles can short 1) and 2) together
Clearly I must be missing something.
In my view, all the reported distortion numbers are beyond expectations.
After all you are buying a $2K radio, not a many kilobuck audio system.
The problems people are having with harmonics when they listen to CW
with a 2.7KHz filter/DSP setting seem to be
Ran into this interesting problem. Encoder or encoder software?
K3 2.23/1.88 firmware Don't know about the lastest beta.
While operating the rig, suddenly tuning across a CW note produced jumps in
frequency rather than a smooth change. The speed used was two digits
displayed after the
.
-
73,
Greg - AB7R
Whidbey Island WA
NA-065
On Tue Sep 2 4:35 , alsopb sent:
Ran into this interesting problem. Encoder or encoder software?
K3 2.23/1.88 firmware Don't know about the lastest beta.
While operating the rig, suddenly tuning across
Guy,
Wouldn't a deep, tunable narrow notch filter also be a solution.
The present notch filter is as wide as a barn door and useless for CW.
I'm not a DSP programmer, but wonder how hard it could be to implement one.
After there is a narrow notch in the present RTTY dual passband filter.
If
I've noticed this a number of times with this firmware.
You turn on NB.
You turn it off, the icon goes away but the signals still sound like NB is
on.
One can hear chops in the wanted signal.
Turning off radio and turning it on gets back to normal.
Anybody else experiencing this?
Has anyone created either?
It would be interesting to me to see somebody prying off the front panel
assembly in video form.
de Brian/K3KO
--
View this message in context:
http://n2.nabble.com/Sub-rx-install-video-pix--tp787633p787633.html
Sent from the Elecraft mailing list archive at
Anybody having luck with a USB1/serial interface to the K3?
de Brian/K3KO
--
View this message in context:
http://n2.nabble.com/K3-and-USB1-serial-interface-tp779536p779536.html
Sent from the Elecraft mailing list archive at Nabble.com.
___
Elecraft
With all due respect, you QRP guys need to be praising the rigs of the people
who pulled your 5 watt rig out of the noise.
5 watts is 5 watts, independent of rig.
73 de Brian/K3KO
Dale Putnam wrote:
The certificate from CQ WW 160 2006, just arrived. Thank you all who
helped make that
OK Jim,
Show me your smarter than those monkeys.
Let's assume you don't talk to just one or a few stations over and over
again but instead the random type contacts most of us make.
How are you going to reduce the 12 trillion combos to a few dozen to try
given:
1) You don't know the filter width
Brian/K3KO
Jim Brown-10 wrote:
On Wed, 13 Aug 2008 20:35:05 -0700 (PDT), alsopb wrote:
Let's assume you don't talk to just one or a few stations over and over
again but instead the random type contacts most of us make.
How are you going to reduce the 12 trillion combos to a few dozen to try
There has been much talk on the mike to use for the K3
What paddle to use is also a fitting topic.
I'm using what seems to be a perfect match for an Elecraft rig. It is a 30
year old single level paddle made by EL KEY.
73 de Brian/K3KO
--
View this message in context:
Anybody out there playing with this feature or actually used it in a contest?
What are your experiences?
Playing with it yielded the following:.
1) Narrower CW filters can't be used (at least not my 400 Hz and narrower
filters). The wings are outside the narrow filter passband.
2) For me
Well George, some of us are rote memory folks and some of us are figure it
out folks.
Both types are needed in this world.
I guess you're in the rote memory column.
Get a little older, memorize the order (a useless thing to spend brain
resources on in my opinion) and come back in two weeks of
Dave,
Tell me with a straight face that you never overshoot a mode and end up at
something other then CW/SSB.
Also throw in AM or FM into the mix and now you have 3 modes which are not
sequential.
Besides, your algorithm actually requires one to remember something. Since
you can't see the
Let's extend this idea to mode enable/disable. It's a pain to cycle through
FM/AM just to get from CW/SSB -- since the proper one press direction to go
isn't something that one should clutter their minds with.
Not an original idea, could disable modes in other older rigs.
73 de Brian/K3KO
FSK POL didn't invert transmitted polarity, when asked to, in FSK D mode even
in the last release.
It works fine in 2.15/1.84 beta version. Don't know about earlier beta
versions.
The text decoding of the K3 is a neat troubleshooting tool. Moniter
yourself. You know right away whether you're
Hi Jim,
Been there with the PT2. It worked somewhat on 6M. It was quite useful on
10,12,15,17 and 20M as well.
It seemed to have too high a noise figure and added significant noise on 6M.
So it was doubtful that it would help me with the weak ones.
I bought a Down East Microwave kit ($35).
Is there a mono option? That is where the sub and main rx audio appears in
both ears?
If no antenna tuner, must one install the BNC connector? I don't see ever
needing to connect the sub rx antenna to any but the transmit antenna. The
firmware makes one choose either BNC or antenna tuner.
Three of us locals got to discussing our K3's.
I got chosen to ask the dumb question.
None of us have the faintest idea what the Transmitter Gain calibration
does.
There is nothing to tweak (or if so what to tweak or it's left out of
manual).
So what does it do?
What if the power on an
on the missing bands. Must have missed
doing something first time through.
73 de Brian/K3KO
alsopb wrote:
K3 #1129 FW 2.02/1.77
Rig has full CW output on these bands. FSK D output is also normal all
bands.
SSB output is about 2-8 watts on these bands either USB or LSB. Works
Look at the progress we have made in completing a circuit which only demands
timings accurate to a millisecond. Now the requirment is:
1) And advanced computer including about a GB of Ram with a CPU operating at
sub nanosecond speeds.
2) A bloated operating system
3) A USB port
4) A WINKEY
37 matches
Mail list logo
