I've just added a Cumbria Designs X-Lock 3, Huff Puff VFO stabilizer
to my K1. The performance is amazing, no drift and no issues with
using RIT (or XIT).
Cumbria Designs are at: http://www.cumbriadesigns.co.uk
The installation details are on my web site at:
Apologies if this appears as a duplicate on the list, my first posting
didn't appear for some odd reason.
I've just added a Cumbria Designs X-Lock 3, Huff Puff VFO stabilizer
to my K1. The performance is amazing, no drift and no issues with
using RIT (or XIT).
Cumbria Designs are at:
Dave, I used to have an FT857D, which is probably the same
connections. The 857 has a connection in the mini DIN socket that will
ground the keying input of a low voltage keying line of a linear, I am
not sure of the maximum voltage but 12 volts from the Acom was OK. I
used my 857 with an Acom
Steve
Been there done that! The counterpoise will radiate and that RF will
mostly be absorbed into the building or ground. So potentially you
could lose half the radiated signal. EZNEC models of that type of
antenna usually give RF going mostly straight up in the air... Perhaps
OK on 80 or 40 to
Coax through the window, or ribbon cable through the window.
73 Dave
Have you had the rig inside with the antennas outside before? If so, how do
you route your feedline?
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You need to use Wintelnetx, not Com0Com... With Wintelnetx, you can
combine Skimmer and Cluster into N1MM.
http://www.k1ttt.net/software.html
73 Dave, G4AON
Tried the yahoo groups also, but no response there yet.
Eric PE3V
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Depends how you run Skimmer, I use a Microtelecom Perseus under direct
control of Skimmer. Perseus is in parallel with my K3 via the RF
IN/OUT sockets and a ferrite splitter. Perseus and Skimmer report to
Wintelnetx as does the cluster, both are combined in Wintelnetx. You
then log into Wintelnetx
The internal ATU in the K1 has only a limited tuning range, but is
always with the K1.
You can increase the tuning range of the internal tuner for the lower
bands by a crafty addition, see:
http://www.astromag.co.uk/pdfs/g4aon_kat1_mods.pdf
73 Dave, G4AON
I can see how an internal tuner would
Fred the big advantage of the P3 (I assume you meant to type P3), is
that it is at eye level with the K3. Also the programmable function
buttons have the appropriate text above them when Labels are turned
on.
In my opinion there is no advantage whatsoever in having an external
display for a P3,
Here in the UK Parcel Force handle the customs clearance, not USPS.
That is where the considerable delay comes in, a few months ago I had
my KPA500 shipped by USPS for the significant saving in shipping cost,
I could track the parcel all the way through, the tracking number
changed when Parcel
Doug, you need an oscilloscope and ideally trigger it from the key
line. For an example of the sort of problems some radios have see:
http://www.astromag.co.uk/ft857d/
Connect the radio to a dummy load (no amplifier needed), set the radio
for a drive level in the 10 - 30 Watt region and send a
What does it do into a 50 Ohm load?
The KPA500 will play up if you have an SWR of 2:1, or higher, when
running near full power.
Also, your posting had no line feeds/carriage returns making reading
it hard work.
73 Dave, G4AON
I have a KPA500 amp and have some issues with it. I ran on my
Please folks leave it alone, there are enough menu items to fiddle
with as it is.
My K3 is set for power per band into the KPA500, I also operate QRP CW
at the 5 Watt level and I do not have a problem with the way the
operate/standby works.
73 Dave, G4AON
The licensing looks pretty strict and stuck in the past. The list of
approved transceivers is very dated...
Perhaps Elecraft can provide a firmware fix to limit the K3 to the
band segments shown in:
http://www.nbtc.go.th/phocadownload/prnbtc/english/8Notification-0001-151254.pdf
It also looks
Pactor III is 2.4 KHz bandwidth, not 5 KHz.
However, various other modes plague of the amateur bands, it is not
confined to Pactor III. I See ROS stations sending out beacon/CQ calls
endlessly in the hope of someone reporting their signals with a link
back via the internet. Even the lowest symbol
Not any more. I set an 80m SSB Sunday morning net up some time ago, it
was later run by Ian, G0VGS. There were few callers so we called it a
day.
73 Dave, G4AON
Dear all is there a eu/Uk Elecraft net. If so what the time and QRG please
Thanks
Tony G0GMS
Larry
If you use ALC between your KPA500 and your transceiver, check to see if
there is a permanent output from the KPA500. U8 on the KPA500 control board
is a known issue where the wrong part was specified up to at least serial
573 (mine)...
The fix is to obtain the correct part and replace it.
Ed your SDR-IQ will do a nice job of close in 2 tone ID testing, a
better job than my simple spectrum analyser. For IMD testing you do
not need a resistive coupler, an ordinary oscilloscope probe used with
a couple of turns of wire around the output coax outer will provide
sufficent signal for IMD
I don't have, nor have seen, the KX3. But from what I read it looks
more like competition for the K2. In the basic 10W version (ie without
a 100W external PA) the KX3 looks good to take with you on holiday,
camping trips etc. A KX3 will take up a lot less space in your hand
luggage than the K2 and
The problem with my K3 is actually a Voltage sitting on the ALC output
of the KPA500 all the time (circa 9 Volts), even with just the mains
turned on via the rear panel switch. As a work around I've turned
off external ALC with the K3 menu and it behaves itself.
No idea why there should be a
Maybe John, it is serial 80 from November 2007. Does that problem also
reduce the overall output as it is low power when using the LP PA as
well.
73 Dave, G4AON
How old is the K3? You don't have the KPA3 corroded pins problem, maybe?
73, John n1JM
My K3/100 has developed an intermittent transmit fault. The power
drops to a very low, but not zero, level at any power setting using
either the LP or HP PA.
The symptoms/set up are as follows:
Mode CW
Using the KPA500 with it (not sure that is relevant)
ATU not in circuit
Power is low as
Dick
Going back a few years, there was a lot of work done on the K3
firmware to improve the performance of the audio path on data,
particularly on the synchronous data mode for ARQ modes such as Amtor
and Pactor. That is one of the reasons why on Data A mode you will not
be able to alter the
My KPA500 (kit version) came in a box sized 390mm x 390mm x 320mm.
73 Dave, G4AON
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A few issues here. Firstly true RTTY is frequency shift keying which
uses a DC voltage change to shift the radio frequency. In the case of
MMTTY you need a simple transistor switching interface which can be
built into a serial D plug shell. From memory the circuit is in the
MMTTY manual. You would
Joel
I am surprised that the audio levels seem to be an issue, I haven't
used mine for ages with the K3, but my SCS modem levels are 500 mV
(PSK and FSK amplitude) on transmit into the line input of the K3,
line input set to 30 on the K3. The K3 line out is 045 and not mixed
with phones. It works
No issues with a K2 here in Europe, I only do 4 flights a year and
only once had to take the K2 out of my carry-on bag to X-ray it
separately - with a grumpy operative saying it was a laptop and
couldn't I read the notice that said to remove laptops from hand
luggage... I carry my licence, but
Tim
I run fldigi with my K3, no need for any interface, just sound card
cables and RS232. The program is free from http://www.w1hkj.com/
You also need to download the K3.xml file (from the above page) and
it works... You don't need the companion program flrig as the fldigi
program itself reads
Adriano as you have discovered, the K3 works perfectly well without an
additional interface on data modes. Adding an additional interface is
of no value. While I don't work contests, I do use fldigi with my K3
and the logging program enters the centre frequency (as opposed to the
dial frequency)
Matt
I use Airmail with my K3 and an SCS Pactor modem to connect to the
Winlink system. Using the pre-defined settings in Airmail it works
perfectly to connect to any of the mail boxes within range, no
tweaking of the RIT, etc. needed.
It looks like RMS Express is the cause of the issue, which I
When I ordered a KPA500, I also ordered the capacitor and crystal kit
to do the wide band SSB mod on my K2. I plan to do the mod tomorrow
(13th Dec) and will let you know how I feel it worked out, both from
the point of view of the mod itself and audibly.
My K2 has already had the 2nd filter
The assembly manual is wrong, I notified Elecraft a few days ago of the
same issue. You should fnd there are enough smaller screws to not run short
when you use them for the Z bracket to heatsink assembly.
73 Dave, G4AON
KPA500 #573
I Just started assembling my
I found time to run a few 2 tone IMD tests with my K3 and KPA500
combination today, these were on 80m using a 50 Ohm Cantenna load with the
spectrum measurements taken with a Microtelecom Perseus SDR. The SDR
receiver was coupled via a loop of wire around the coax to the Cantenna.
The two tones
Joe (K2UF) is lucky with:
UPS says my new KPA500 is now in Illinois and due to be delivered on Monday
I opted for the lower cost USPS delivery. The handling of USPS
deliveries in the UK is by Parcel Force, often referred to as Parcel
Farce. They are living up to their name, my KPA500 has been
Jacques, I do not understand why you appear to have a problem
contacting Elecraft, I have dealt with them for 10 years and not once
had any problem contacting them. My most recent exchange of e-mail
concerned ordering a KPA500 last week and I e-mailed Vicki with no
problem and spoke with her on
I used a RohdeSchwarz FSH8 portable Spectrum Analyzer using a short
wire in the input connector center pin to pick up the signal from the
antennas
Using such a wire pick up will exaggerate the higher frequencies and
not give a flat response. You need to use a resistive tap or power
attenuator in
See: http://www.tx7m.com/plans.php
Good signal here in England on 10 MHz.
73 Dave
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Lu, if you have access to an SDR receiver that can record it's output
on a PC, it might be easier that using a noise source.
When comparing several microphones and headsets on my K3, I used a
Perseus SDR to play back the results for A/B/C/D comparison in order
to pick the best equaliser/mic
I worked for many years in the mobile radio servicing industry, we
occasionally saw waterlogged radios and sometimes were asked to repair
them. Forget it, before the days of surface mount ICs it was hard to
ensure there wasn't corrosion starting under components, now it's
virtually impossible.
As
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