And instead, use your Elecraft radio to work some guys in the contest.
A lot of them will be using Elecraft radios as well!
73 - Jim K8MR
-Original Message-
From: Phil Shepard ph...@riousa.com
To: elecraft elecraft@mailman.qth.net
Sent: Sat, Mar 29, 2014 11:34 pm
Subject:
It is worth noting DOT regulations for transporting lithium ion
batteries by air:
http://safetravel.dot.gov/whats_new_batteries.html
Basically Lithium Ion batteries not installed in equipment may not be
carried in checked luggage. There are some limits on what and how many
may be carried in
This is why when I operated from the beach in Punta Cana as HI/K8MR in the
2014 ARRL and CQ CW DX contests, I took care to tape over all unused
connectors, the seam where the two halves hinge together, and the speaker (I
was using ear buds). While I did not do so, it might also be good to put
With the ARRL VHF contest coming up, I'm still waiting to hear if there has
been any progress in getting a delay in the PTT output, vs. full breakin
only, when using CW in SSB?
When driving a (non-Elecraft) transverter, one needs some delay in the
circuit that keys the transverter. The
It's pitch differentiation. 100 Hz away from 750Hz is a lot closer in
pitch than is 100 Hz away from 400 Hz.
73 - Jim K8MR
In a message dated 10/19/2013 5:36:58 P.M. Eastern Daylight Time,
alor...@sbcglobal.net writes:
When I was a kid 750 Hz was the most popular sidetone
I posted a query a few weeks back but neglected to say for which radio.
The KX3, FW 1.61, with CW in SSB seems to allow only full break-in
operation. This is a problem when using a transverter or amplifier not
designed
for break in.
Am I missing something, or is this in need of an FW
Looking over the KXPA100 order information, I wonder, what is controlled
via the RS232 jack (with the KXUSB cable), and what is controlled via the
Ethernet jack/cable?
Are the two jacks on the mid-cord box in the KXPACBL essential to operation
of the KXPA100 with a KX3? Or are they for use
It appears that in CW in SSB mode, the VOX delay is not in use, only full
break in.
Keying the microphone overrides the CW in SSB, which makes sense.
Have I missed something? I want to use CW in SSB with VHF transverters,
whose relays don't work so well with full break in.
73 - Jim
I'd like to repeat a feature request:
The option of NONE for CW KEY2.
This would allow use of a mono plug to send external CW. A few days ago I
went to drop my KX3 into the position I normally use with a rig that uses a
mono 1/4 key plug. Even with an adaptor to 1/8, it wouldn't work
There are many very functional radios out there that use a mono key jack.
In my case, the IC-746.
Most keyers have their output as a mono RCA jack. The K1EL USB WinKey and
the W9XT Unified Microsystems XT-4 are two such examples. A readily
available mono RCA to 1/8 cable is exactly what is
Having been spoiled by the ease of installing production firmware updates,
I wonder if there might be a new production release for the KX3, including
CW in SSB, coming out prior to the September ARRL VHF contest on September
14-15?
As far as I can imagine, VHF contests are the prime use
See page 10 and 11 of:
http://www.arrl.org/files/file/ContestResults/2013/2013-DXCW-Web1_1.pdf
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Post:
Rather than reinvent the wheel, does anybody have experience or suggestions for
a small solar array sufficient to keep a KX3 with internal batteries going
during daylight? I would assume 10 watts average over a reasonable TX duty
cycle would be enough.? Something strong enough or flexible
I would suspect the ACC and RXIQ jacks are much less used than the larger
KEY and PHONES jacks.
Speaking of jacks, I'd like to repeat publicly a request I've made through
Elecraft channels:
That the CW KEY1 and CW KEY2 menus have an option for NONE.
That way, a mono 3.5mm plug could be
I blew the switching FET with about 50 ma of current (12 volts) from a
DownEast Microwave transverter. Elecraft says it should have handled it, but
anyway, FWIW.
The FET has been replaced, and an intermediate switching transistor
installed in the switchbox for the several transverters. Now
The DEM transverters also have the diode snubber.
So things remain a mystery, hopefully never to repeat.
73 - Jim K8MR
In a message dated 3/12/2013 8:02:08 P.M. Eastern Daylight Time,
c-haw...@illinois.edu writes:
The 2N7002 has an internal diode for any inductive collapse.
In my case the FET failed somewhat gradually. I made several QSOs by
momentarily turning off the transverter power. When I turned it back on, it
came
up in receive mode. Then I'd transmit, power cycle the transverter to
return to receive, and repeat.
After several such QSOs power cycling
Add me to the list of KX3 ops in the ARRL CW DX Contest.
I spent about 11 hours as HI/K8MR, operating with very simple wires from
the Hard Rock Hotel Casino resort in Punta Cana. Totaled 615 QSOs with 172
Multipliers. There were some very slow times for us, especially on the low
bands,
More info:
I have the ATU installed in the KX3. Even with the KX3 directly connected
to a good 50 ohm load, running an autotune on the XV bands (28 MHz) causes
lots of relay chatter in the radio, and a displayed SWR of 25.4 that does
not change. On the other bands (including 28 MHz) it
A suggestion that I would like to see implemented:
An option in the CW Key menu of None, so one could use a 3.5mm mono plug,
ignoring the short to ground across what would be the ring in a stereo
plug.
73 - Jim K8MR
In a message dated 1/9/2013 5:53:39 P.M. Eastern Standard
I'm working at getting my DEM transverters interfaced to the KX3. I've set
up the first three XVTR bands, configured for 28 MHz IF. With the KX3 max
power set at 0.1W on the transverter bands, I'm only getting about 20 mW of
28 MHz RF output (1V RMS measured on the scope). When I use 28 MHz
I'm starting the project of getting my KX3 interfaced to my three DEM
transverters (222-432-1296, all 28 MHz IFs).
If the XVn firmware working yet? The only search results I find from the
archives gives a September 2012 message that the firmware was still being
worked on.
In particular,
Today at the end of the ARRL 10 meter contest, the real time clock in the
KX3 rolled over from 23:59:59 to 24:00:00 and kept going.
I turned off the radio and it came back up at 00:02:xx
???
73 - Jim K8MR
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Might it be possible to see the maH drawn since the end of the last charge?
Is seems that such info could be a useful gauge of how much battery juice
is remaining.
(If the answer is no, add this idea to the suggestion box.)
73 - Jim K8MR
In a message dated 12/6/2012
I did some more careful checking this morning, transmitting a few watts on
the FT-1000MP and using a couple of inches of wire as an antenna on the
KX3, on a quiet 10 meter band. The S-meter on the KX3 was 9+
There is noticeable opposite (lower frequency) side suppression issues,
but this
A recent KX3 owner (# 1677), I've noticed hearing out of passband signals
from loud CW stations. I can hear such stations up to several KHz away. I
suspect the range is limited by the audio response of the system, including
my ears. Both sides of zero beat, though less so on the opposite
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