The ideal solution is to fix the software so that it sends CW as serial
data
to the K3 internal keyer rather than keying the status lines. Why generate
code the hard way when the radio will do it for you? I'm trying to find a
way to do it myself will post info to the reflector if I succeed.
select the correct button on the FT-900. I hope that
my K3 that will arrive in a week or so works very much
like the TS-850, preferably exactly like the TS-850.
Willis 'Cookie' Cooke
K5EWJ
That is no RIT Clear button and no finger dimple on the tuning knob? :)
73, Igor UA9CDC
My friend, K3 user is getting ready for CQWW SSB. In his installation the
rotator control box that has pretty large transformer inside. The box is
only few inches away from one of the two K3s and cannot be moved. He has
discovered that magnetic field created by this transformer interacts with
The problem is solved. I thought I have to share with others what worked
best or us. This solution came from Gary N7IR.
Try a few sheets of thin low carbon steel (in US called mild steel)
insulated from each other by sheets of printer paper. Put this sandwich in
between and parallel to the K3
Expert can sense the frequency from RF input (like ACOM2000) or get
frequency information from the radio via RS232. It is your choice how you
configure that. I think one can download the Expert manual from the site and
read it all there.
73, Igor UA9CDC
Gentelmen,
I am considering the
I have used my K3 with the second receiver installed in CQWW CW as 8Q7DV.
Just two requests for the future firmware releases:
1) Would be useful to have two receivers work on different bands. I know it
is on the plan but this is so important that I have decided to remind about
it again.
2)
John, get yourself Micro keyer II from Microham and you will be able to
automate most of your switching. MKII has auxillary CI-V output. It
communicates with K3 on the virtual serial port and converts freq data to
CI-V for PW1. This way you will make PW1 follow K3 freq
73, Igor UA9CDC
Hi
I am using MSI U100 netbook. Weight is less then 1 kg.
73, Igor UA9CDC
- Original Message -
From: dyarnes
To: dbellw...@aol.com ; elecraft@mailman.qth.net
Sent: Friday, February 06, 2009 7:13 PM
Subject: Re: [Elecraft] DXpedition computer for K3
Dave and All,
I have an
Since it is not on the official web site could it be reposted on this
reflector?
73, Igor UA9CDC
A while back Wayne posted a message about such a DSP board mod on the
Yahoo Groups list:
http://groups.yahoo.com/group/Elecraft_K3/message/2881
Bob NW8L
On Sat, Feb 7, 2009 at 5:47 PM, Don
Bob, does it mean that the USB sound card built into MicrokeyerII cannot be
utilized by LP-PAN? Why?
73, Igor UA9CDC
Jim,
Your LP Pan system should not be connected to, or interact with your
MicroKeyer whatsoever. You will need a sound card (or external USB sound
unit like the EMU 0202)
I finally got enough courage to upgrade to ver 3.06 and try true
independence with KRX3. Here are some questions that I hope someone can
help me with:
1) I do not have KXV3 installed. I have one tribander connected to ANT1.
Having tuned main RX on 20 using ANT1 I am trying to set SUB RX on 15m
Thanks Lyle. Does it mean that if Main is on 15 and sub is on 20 I loose
signal on sub when I swap RX with A/B button?
73, Igor UA9CDC
1) I do not have KXV3 installed. I have one tribander connected to ANT1.
Having tuned main RX on 20 using ANT1 I am trying to set SUB RX on 15m
using the
My first unit had the same problem. After replacing that knob and
building 2 additional K3s, I've had no further problems. I believe this
is a matter of learning not to over-torque the knob screws (I routinely do
this to things). I'm happy to learn that Russians are just as heavy
That is exactly what is done in SPE 1K-FA amp plus SO2R and automatic
antenna selection. The integration with my K3 is pretty simple too. SPE is
working on 1500W version now and hope to show it at the end of this year or
beginning the next year. 6m is also built in.
73, Igor UA9CDC
How about
For those who would like to hear how K3 behaves in contest environment
I have put here http://ua9cdc.narod.ru/UCG2009.html some audio files from
Ural Contest Group Contest (UCG) 2009 operation. This contest is WRTC style
annual competition held by UCG on the first weekend in June during first 6
I vote for SPE 1K-FA linear. I am using it for almost 2 years. It interfaces
easily with my K3 (as well as IC-7000), weights only 20kg, has automatic
programmable 4 antenna switch, built in automatic antenna tuner, supports
SO2R all in one small box. The amp is absolutely transparent in
My issue is that I use SPKR+PH most of the time, so I can listen
having to have my headset on, but put it on when I want to transmit.
Ideally, I'd like to get the monitor audio in the headphones only, and
not in the external speakers (which produces feedback). As it is, I have
to remember to
Igor Sokolov wrote:
My issue is that I use SPKR+PH most of the time, so I can listen
having to have my headset on, but put it on when I want to transmit.
Ideally, I'd like to get the monitor audio in the headphones only, and
not in the external speakers (which produces feedback). As it is, I
That feature can be had on almost any radio, K3 included. I have got
Microham MicrokeyerII and now I can do with just one USB connection to
computer. That includes audio, CAT, PTT,CW,FSK. In addition Microkeyer has
winkey built in and PTT sequencer to deal with external RX and TX amps.
73,
to LP-bridge.
73, Igor UA9CDC
- Original Message -
From: Steve Ellington n...@carolina.rr.com
To: Igor Sokolov ua9...@gmail.com; elecraft@mailman.qth.net
Sent: Wednesday, June 17, 2009 12:26 AM
Subject: Re: [Elecraft] K3 vs. Icom IC-7600
Errr...How do U get the audio from the rig
?
Thanks,
Julius
Igor Sokolov-2 wrote:
That feature can be had on almost any radio, K3 included. I have got
Microham MicrokeyerII and now I can do with just one USB connection to
computer. That includes audio, CAT, PTT,CW,FSK. In addition Microkeyer
has
winkey built in and PTT sequencer
We are using pair of K3 in WRTC style competition. Since the requirement
there is only one signal at any given moment we are using external lock out
on PTT lines. The problem with this arrangement is that if one of the PTT
line is disabled by lock out and operator starts to TX, he will still
Yes, I do. I use K3 with Expert 1k-FA, I have made the cable myself and I do
not use ALC. I just set output of K3 at 20 W and it does the job very well.
Use of ALC was discussed a lot in different reflectors and the consensus was
that it spoils IMD of the TX signal when used,
73, Igor UA9CDC
What a surprise! Cross band operation with 2 VFO is implemented even in my
IC7000. I thought it is available in K3 as well especially with 2 complete RX
build in.
Well I hope it will not take long to update the firmware to implement this
feature because my K3 with KRX3 is on the way here and I
I have just received my K3 factory built and been playing with it for the
last two days. I immediately discovered RF feedback problem which was cured
by connecting pin 7 of the mike plug to the shell of the connector. I do
plan to use rear mike and audio connectors as well but I am getting a
In fact digi setting can also be different. May be saving EQ settings along
with other settings as profile in M1-M4 would be handy. Rec button could be
used for resetting to default.
73, Igor UA9CDC
For CW reception of weak 160m DX, I recently tried tweaking up the RX EQ so
that the sidetone
I would also like to know that please.
73, Igor UA9CDC
Wayne
Can you tell us the serial number at which
these changes were incorporated?
We need to know who needs to order them
and who does not.
Thanks and 73
Bob N6WG
- Original Message -
From: wayne burdick [EMAIL PROTECTED]
To:
I take my K3 with the second receiver to 8Q7DV for CQWW CW
73, Igor UA9CDC
+
Where are the peripatetic K3s going to be for CQWW? Mine will be at
C6AKX, sadly without the second receiver :-(
Hope to work you all,
73,
Fred KE7X
This email and
I have purchased in total 4 kits from Warren Gregoire for the last 5 years.
Two for myself (I have just worn out one in contests and expeditions) and
two for my friends. They are easy to assemble(although they sell ready made
headsets as well) and IMHO pretty good quality for the price. I never
I have ordered K3 few days ago on the web. How does one know is the order
came through and the expected delivery date? I did not get no email
confirming my order. What is the usual procedure when ordering through the
web?
73, Igor UA9CDC
Hi
I want also to be on the list
I wonder how
Hi All, I am planning on buying a K3 in the near future and
just have a couple of questions, is the reciever in the radio
have the same specs as the optional sub reciever with the
exception of the BC coverage of the sub? I really don't care
about recieving the BC stuff and from what I can see the
Almost all of the operators ran the K3 with AGC off (all modes).
-- Eric
Eric, can you explain what did you not like about AGC in K3?
Did you notice any problems with DSP being permanently on in K3 when
listening to heavy pile ups?
73, Igor UA9CDC
to it. The K3 has more
dynamic range than other receivers.
73,
-- Eric K3NA
on 08 Mar 13 Thu 02:26 Igor Sokolov said the following:
Almost all of the operators ran the K3 with AGC off (all modes).
-- Eric
Eric, can you explain what did you not like about AGC in K3?
Did you notice any
the
management of a pileup. But that's a subject for another time...
-- Eric K3NA
on 08 Mar 13 Thu 14:57 Igor Sokolov said the following:
Thanks Eric,
I understand you think AGC in high dynamic range radio like K3 is not a
necessity for the op with high dynamic range ears.
Actually the range
I am new user of K2. Pretty recent serial number. 100 w version. I also
find the radio has not enough audio gain. It is OK when I operate from my
city shack but when I am in the country where level of QRM is really low
then there are stations on 10 and 15 meters that are definitely copiable but
Provided 2 yagi antennas separated by 100-150m and each has F/S of 40db you
can get some 80 db isolation and stop warring about wide band noise from
adjacent radio.
73, Igor UA9CDC
Bill Coleman wrote:
At NQ4I, with antenna separation of just a few dozen meters, we can
often receive
On 8/6/07, Igor Sokolov [EMAIL PROTECTED] wrote:
I have made brake up box for microphone/sound card connection with
isolating
transformers. I find K2 to be pretty poor performer on PSK31. Has it
something to do with VFO stability of phase shift in the filters - I do
not
know. But weak
Has it
something to do with VFO stability of phase shift in the filters - I do
not
know. But weak signals coming from my IC765 get easyly decoded by the
program while if I use K2 the same program can decode only solid signals.
I agree with others that it is probably a filter alignment issue.
My headphone jack failed after 2 weeks of use. It faled the way Drew
describes in his message below.
I know of at least 3 more K2 owners here in Russia who had the same problem.
73, Igor UA9CDC
: I think there is confusion to what the problem part is.
:
: The headphone jack seems like a proven
There is still no easy way to get CW PTT in K2 though. That is a pity.
73, Igor UA9CDC
: Bill said:
:
: [snip]
: N6KR:
: Some firmware functionality being added as we speak is not represented.
: Example: how to select PTT CW vs. Full/Semi QSK (we got the message :)
:
: Bravo
I use CAT data from my K3 to control 1k-FA. I think CAT control has a
distinct advantage in case of 1K-FA because the internal antenna tuner in
Expert usually has several settings per band. That is especially important
on wide bands like 160 or 80 meters. With CAT control these tuner settings
from K3 RS232. Microkeyer can translate K3 -logging program
conversation into CI-V and one can use that CI-V to control Expert.
Just MHO
73, Igor UA9CDC
- Original Message -
From: GLEN BROWN
To: Igor Sokolov
Cc: Elecraft Reflector
Sent: Tuesday, June 29, 2010 2:42 AM
://groups.yahoo.com/group/microHAM
On 6/29/2010 12:49 AM, Igor Sokolov wrote:
Glen, since your tuner is only set correctly when you TX, that means
that you loose in RX at times. When you jump on a new frequensy (band
map spot) your tuner is set incorrectly. Another point is that when
you start
I have had K3 and 1K-FA combo for over 2 years. I also use Kenwood CAT to
make the amp follow the radio. I do not use QSK and use headphones in the
contests so the noise from fans problem and hot switching when QSK problem
is not my worry. I think K3 and Expert is one very good combination.
I dare to argue with the below statement. I see several advantages in using
laptop in the hamshack.
They require less space
They are usually less noisy both electrically and acoustically
They do not need separate UPS
And they are not that expensive after all. 1.6 GHz Atom processor netbook
can
Is this about 3rd order inband IMD? The subject was widely discussed some
time ago. Just try to search the archaive.
73, Igor UA9DC
- Original Message -
From: Ramiro Aceves ea1...@gmail.com
To: elecraft@mailman.qth.net
Sent: Tuesday, November 23, 2010 3:20 PM
Subject: [Elecraft] K3 RX
Ramiro, the in band IMD subject was discussed here on this reflector as
well.
Here is the link
http://mailman.qth.net/pipermail/elecraft/2008-November/099616.html
73, Igor UA9CDC
- Original Message -
From: Ramiro Aceves ea1...@gmail.com
To: Igor Sokolov ua9...@gmail.com
Cc: elecraft
The problem with the SPE amps is weight- they're 20 kilos, instead of 10
for each of our current amps and the projected KPA500 (IIRC).
SPE does not need LDG autotuner though. It also does not need band decoder
and antenna selector. Summing all that up does not make 20 kilos look that
bad .
Yes, good exercise. Except ICPW1, all the prices are WITHOUT antenna
tuning
unit.
Based on that, the price per watt for SPE is say $3.9 per watt but with
built-in
ATU. THP will be sure out of my consideration.
cheers,
Johnny VR2XMC
In addition SPE understands any make of TRCVR not
I run my Expert 1k-FA at 600W driving it with K3 set at 15W. When I hear
/QRP station I switch from 600W to 15W. My statistics is that less then 50%
of the /QRP callers hear me then.
When in the contest /QRP station calls I often come back to him with my
call/QRO to show him that this power
http://www.youtube.com/watch?v=Wbj76DVuAoo
This is a video tour around R9DX (aka UA9CLB) contest position (sorry all
the talks are in Russian). The tour includes almost all of the antennas and
2 x K3 set up in SO3R configuration.
Just thought it might be interesting for some of the reflector
It has started with complains of some of our contacts in the contest. They
told us that the weighting of out TX CW is not standard.
Two channel oscilloscope was brought into shack and 3 K3 tcvrs were checked:
SN 1651 SW ver 3.06
SN 2929 SW ver 3.68
SN 3553 SW ver. 3.41
On all 3 units series of
Igor Sokolov wrote:
It has started with complains of some of our contacts in the contest.
They told us that the weighting of out TX CW is not standard.
Two channel oscilloscope was brought into shack and 3 K3 tcvrs were
checked:
SN 1651 SW ver 3.06
SN 2929 SW ver 3.68
SN 3553 SW ver
Here is the picture to illustrate the problem.
http://forum.qrz.ru/attachment.php?attachmentid=29596d=1264954098
again, QSK is not used. This shows one of the long series of dots sent with
external PTT.
73, Igor UA9CDC
Igor Sokolov wrote:
It has started with complains of some of our contacts
what you think.
73, Igor UA9CDC
- Original Message -
From: WILLIS COOKE
To: Igor Sokolov ; Elecraft@mailman.qth.net
Cc: Elecraft@mailman.qth.net
Sent: Monday, February 01, 2010 1:20 AM
Subject: Re: [Elecraft] [Elecraft_K3] TX CW discrepancy
Igor, before I did anything
Starting what serial numbers please.
73, Igor UA9CDC
All New K3s for some time have had this change made at the factory
before they ship.
73, Eric
On 3/8/2010 4:04 PM, Brett Howard wrote:
http://www.elecraft.com/K3/mods/K3%20rx%20protection%20mod,%20rev%20B.pdf
That document explains a
is the most
significant tracking method for mods that are included.
When in doubt, consult www.elecraft.com.
73,
Don W3FPR
Igor Sokolov wrote:
Starting what serial numbers please.
73, Igor UA9CDC
All New K3s for some time have had this change made at the factory
before they ship.
73
I agree. K2 TX audio is far from excellent. We have 3 of K2 here in the
neighborhood. All of them produce SSB signal that leaves some more to be
desired. As for CW - no doubt, it is very good radio.
73, Igor UA9CDC
- Original Message -
From: Kevin Cozens ke...@ve3syb.ca
To: K2
Message -
From: Don Wilhelm w3...@embarqmail.com
To: Igor Sokolov ua9...@gmail.com
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Sunday, April 08, 2012 7:26 PM
Subject: Re: [Elecraft] K2 intermittent problem
Igor,
An intermittent problem of that nature is usually associated with a bad
case is
on 28 MHZ where it is 260 Hz.
Do you have any ideas Don?
73, Igor UA9CDC
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: Igor Sokolov ua9...@gmail.com
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Monday, April 23, 2012 11:48 PM
Subject: Re: [Elecraft] K2
Thank you Mark.
I was looking for this information. Well.. it is very slow indeed. I thought
it is much faster.
Could you possibly measure how long does it take for the signal to appear at
the output after TX Inh set to low?
73, Igor UA9CDC
well I went and measured it.
Max time for RF
I do not want bigger then K3 size of K4 based on the same architecture but
K4 of the size of K3 based on SDR architecture would be very interesting.
I would strongly consider KPA 1500 if it would be capable of everything that
Expert 2K-FA can already do plus a bit extra. That is provided the
I am playing with HDSDR and my KX3 #051 in All Asian Contest. Here is
the recording of a few minutes in the contest made with HDSDR.
To listen to the stations I worked tune HDSDR +7.4 KHz. My TX signal
is at 0 KHz on the scale. This is because RX shift of 8 KHZ is enabled
on the radio. I was
Barry,
I am using KX3 +NaP3+LP bridge + TR4W logger and have no issues with the
offset. Na3P allows one to set different offset for different modes but I
use only global offset of 8000Hz and it works for me at least on CW and SSB
with no problems.
73, Igor UA9CDC
- Original Message -
Jim,
Nowadays even SO stations are much more complicated then just transceiver
and linear amp. There are filters, RX antennas, power splitters in stacks
which need to be controlled and require additional delays. 8ms is very often
not enough to compensate for all the delays. I had to build
Hi Jim,
First, in my experience 8msec delay is THE ONLY point if we speak about TX
delay. Any setting above 8 msec makes CW choppy. This subject was discussed
here some time ago. It has been checked here on 4 different K3s and they are
all the same.
Second, I do not insist on anything. I have
Please go back and look at the SUBJECT line in this thread. It is about
DIGITAL MODES. :) We're talking RTTY, PSK, FSK, JT65, Olivia, etc. The
only one of those that is a contesting mode is RTTY. I use VOX for all
of them, with no issues, because I don't have any gear with slow relays.
David,
I use both 12m and 18m Spider poles. 12m one is pretty easy and could be
pushed up vertically.
18m pole requires different technique, well described by the series of
pictures here
http://www.spiderbeam.com/product_info.php?info=p71_Spiderbeam%2018m%20fiberglass%20pole.html
73, Igor
Olli,
Very interesting. I have experienced this effect recently when operating
from 2400 m high summit as TA4/UA9CDC. I thought the reason is opposite side
band not well suppressed. Therefore I was going to ask Wayne to send me that
beta firmware they have developed in order to rectify the
I had similar problem.
The solution I use is the external TX delay circuit of 30 ms (adjustable)
that utilizes 1 FET transistor, capacitor and couple of resistors. It is
built into connector body and plugs into ACC socket of K3. Now my T/R
relays in the amp are safe.
73, Igor UA9CDC
-
(W)
At 40 wpm, one dot is 30 ms.
Does it delay return to RX?
73 de Brian/K3KO
n 10/29/2012 19:54, Igor Sokolov wrote:
I had similar problem.
The solution I use is the external TX delay circuit of 30 ms
(adjustable) that utilizes 1 FET transistor, capacitor and couple of
resistors
I recently got THP HL1.1KFX amplifier to be used with KX3 and possibly other
transceivers when going on expeditions. The reason I got THP instead of
KPA500 is because I got this amp pretty cheap and it weights only 9 Kg. I
immediately started to consider various antenna tuner options. MFJ has
I think what happens is KAT500 needs few msec to determine the operating
frequency and measure SWR. There is currently no delay between PTT going
into KAT500 from the radio and PTT going out into the KPA500. These few msec
is enough for KPA500 to switch itself to fault condition.
Here
: iain macdonnell - N6ML a...@dseven.org
To: Igor Sokolov ua9...@gmail.com
Cc: Chris Johnson elecr...@ozy.us; Elecraft@mailman.qth.net
Sent: Saturday, December 08, 2012 12:31 AM
Subject: Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500
(Video)
It should be noted that the KAT500 does
IMHO adapting amplifier to work with KAT500 is not the right way of doing it
because KAT500 is supposed to work with many different amps of 600 watt
class.
Yes, PTT is generated by the radio and then passed to KAT500. KAT500 should
generate it's own PTT signal for PA based on it's own KAT500
though.
73 de Brian/K3KO
On 12/9/2012 15:02, Igor Sokolov wrote:
IMHO adapting amplifier to work with KAT500 is not the right way of
doing it because KAT500 is supposed to work with many different amps of
600 watt class.
Yes, PTT is generated by the radio and then passed to KAT500. KAT500
should
The simple solution is to put the amp in standby, or push tune on the KAT
first, and then tune on the K3. I take it if you push tune first on the
KAT, then it will open the key line first so that the subsequent pushing
of tune on the K3 won't key the amp.
Chuck, KE9UW
Lionel Trains, TCA,
The RBN will usually crash at least once in the big contests. Either have
a
backup cluster connection ready in the Packet/Telnet window, or use
K1TTT's
WinTelnetX software to mix RBN feeds with other cluster feeds. I used to
do
that, but the RBN reliability has gone way up - I haven't felt
: [Elecraft] [K3] SO2V?
Yes, Igor - good point. You really don't need WinTelnetX anymore unless you
have other streams to consolidate.
73 John K3TN.
-Original Message-
From: Igor Sokolov ua9...@gmail.com
To: John K3TN jpescat...@aol.com; elecraft elecraft@mailman.qth.net
Sent: Tue
Expert 1K-FA can eavesdrop on the connection between the PC and K3 and
change setting of Expert's antenna tuner depending on frequency prior to TX.
Microham keyers can also listen to responses of K3 being polled by
logging program. When no polling from logger occurs, Microham starts polling
Gary,
Direct detection of AM signals is inherent problem with zero IF SDR. The
best solution is the use of RX SHIFT.
You can possibly use high Q filter at the input of the radio if you know the
frequency of the interfering AM station and if it is only one such a
station. But it is hardly
If it is RFI problem (as it was initially suspected) I would first
disconnect the control cable between K3 and KPA500. I would use only
separate PTT line to the amd and see if the problem is gone on the affected
band.
73, Igor UA9CDC
- Original Message -
From: Rick Bates
Another correction. HLA 300 (and probably 150) have RF sensing PTT and
automatic band switching. They also have decent IMD is not driven to full
output power. HLA 300 is about 25-30 db IMD when driven to 150-200 watts
(5-7watt input) and cost under 500 USD. No antenna tuner though.
73, Igor
Hank, this is known problem. Set TX dly to default and see the result.
73, Igor UA9CDC
- Original Message -
From: Pfizenmayer pfizenma...@q.com
To: elecraft@mailman.qth.net
Sent: Tuesday, July 23, 2013 1:39 PM
Subject: [Elecraft] k3 7536
Called V73NS tonite on 20 CW and he could not
Hi Klaus,
Matt and Don, if this is a problem with _any_ zero
frequency IF (direct conversion) receiver then the KX3's
concept would be a design error. ( I hope it is not.)
It is not a design error. Simply every design has it's own limitations.
If I switch to RX SHIFT I will have a receiver
http://www.cqham.ru/forum/showthread.php?t=17539page=76
73, Igor UA9CDC
- Original Message -
From: Richard Neese kb3...@gmail.com
To: elecraft@mailman.qth.net
Sent: Monday, August 05, 2013 2:09 AM
Subject: [Elecraft] posting of kx3 shacks and antennas.
I wouls like to see some of
Paul,
I have this direct AM detection on my KX3 every day mainly on 20-15-10 m
bands/ I would not call it a problem because shifting IF 8 kHz solves it
100%. Although this disables dual RX but one seldom (if ever) needs it on
this portable QRP transceiver.
Yet the radio is the best available
Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Igor Sokolov
Sent: Thursday, August 15, 2013 1:19 PM
To: Paul Barlow; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 BC Breakthrough
Paul,
I have this direct AM detection on my KX3 every day
I really need out of band TX of KX3. In combination with the build in SWR
meter it is a great help in antenna tuning process and saves me carrying MFJ
259 in expeditions. Besides it is the only antenna SWR meter that I can use
on 160 and 80 meters in the vicinity of a powerful broadcasting
Terry,
Thank you for the excellent write up. I enjoyed every line of it and hope to
have access to such a reading more often in the future.
Very educational and concise.
- Original Message -
From: wb4...@knology.net
To: k6...@foothill.net; elecraft@mailman.qth.net
Sent: Tuesday,
If I am not mistaken, there is also PTT signal in the ACC socket pin 4.
73, Igor UA9CDC
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: r...@aol.com
Cc: elecraft@mailman.qth.net
Sent: Sunday, October 06, 2013 7:57 AM
Subject: Re: [Elecraft] K3: PTT In - quit working
Nice pictures.
What are your impressions of Palm keyer for KX3?
73, Igor UA9CDC
- Original Message -
From: F5vjc foxfive@gmail.com
To: Peter Eijlander (PA0PJE) pa0...@xs4all.nl
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Wednesday, October 09, 2013 11:08 PM
Subject: Re:
My friend, R9DX is in Madeira now. He has K3 and Buddipole antenna with him
and planned to operate in CQWW SSB this coming weekend. He has put up
buddipole and tuned it with AA-530 antenna analyzer to 1: 1 SWR. It all
worked well with 100w output on that band. Then he desided to try 28 MHz
I thought this might be interesting for the group. It shows what can be done
by a good operator with K3 and Buddipole antenna only 3.5 meters high, from
the right location.
http://pileup.ru/search.php?call=CT9/R9DX%20%20%20%20year=2013contest_short=cqww_ssb
Vadim, R9DX has won a place in WRTC
Jim,
I always thought of Beverage as directional antenna that favors low angles.
Is it not so?
Regarding diversity, I always use two antennas (usually beaming West and
East) practically on all the bands. This helps not only to fight multy path
propagation but allows listening to weak signals
Dave,
Can you point to a good regulator and/or chjarger suitable for HF radio
use?
73, Igor UA9CDC
Yes, very good.
Alternative URL:-
http://preview.tinyurl.com/mznv6e2
Goes to the same place as quoted above..
You can often find them on eBay too (for a price!) I have a 45W version.
Take
I have Inv L connected to RX1 of my K3 and Hi-Z triangle connected to Aux RX
but no canceling system. I have to do this canceling in my head and it works
to the extend. I think, if you connect Hi-Z to one of the inputs of noise
canceling device and some noise antenna (TX antenna for example) to
It may be not relevant to this particular case but another reason for weird
KAT500 behavior can be strong interfering signal of a neighbor or nearby
broadcasting station. I did run into situations where such signals induced
up to 5 volts into low band antenna. Then KAT500 counts that signal as
And the same on HF. Working pile up is a lot easier in the contest when you
have two antennas beaming different directions and 2 RX on the same
frequency. In our case EU signals on the western antenna are in the left ear
and JA/Pacific signals are in the right ear. Since both receivers have
In Multy Single club station we use cathode followers. They protect front
end from overload and static 100%
73, Igor UA9CDC
All,
Now that I have the K2 opened for another issue, what
is the recommended static protection method ? 500k 1/4w
resistor from the center conductor of the
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