Mine does that too. The VCO for a frequency around 14.360 MHz should
be running aabout 19.274 MHz and the reference oscillator runs at about
12.096 MHz. 2*19.274-2*12.096 = 14.356 MHz, so that seems to be the
culprit. It pops in because of the way the VCO is tuned. When you get
to the edge of
Ordered Jul 12 2008.
Delivered Oct 13.
Finished Oct 17.
3 months waiting time.
Stew Perry warm up will also be K3 warm up.
73 Henk PA5KT
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Michael Lewis wrote:
Worked a mobile station in TX, and then casually tuned up the band. I
actually tuned out of 20m by a little bit up to 14359 (14359.03 on the
display to be exact) and BAM! I got an S9 tone. It goes from totally
quiet to S9 as soon as the tuning display hits 14359.03.
With respect Kevin the 'culprit' responsible for this birdie in my K2 is the
(LO + IF) / 2 spurious response of the receiver which can 'hear' the PLL
reference oscillator. When the receiver is tuned to 14.360 MHz the frequency
of this particular response, assuming a 4.914 MHz IF, is (19.274 +
Henk Remijn PA5KT wrote:
Ordered Jul 12 2008.
Delivered Oct 13.
Finished Oct 17.
3 months waiting time.
Nice that thr backlog is clearing. Let's hope the recent turbulence hasn't
caused new orders to dry up.
(And I find it *totally unfair* (WAAHH!) that the economic meltdown in the U.S.
has
TEST for Tim at QTH Admin
Regards,
Vic
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Hi;
I have not PA and FP temperature display on VFO B line, left are OK.
What I have to do to switch ON these parameters?
vy 73;
Andy SP9NH
K3 S/N 1334
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Tap DISP button to turn ON the VFO B Alternate display
73,
Ken K3IU
Andrzej Oskedra wrote:
Hi;
I have not PA and FP temperature display on VFO B line, left are OK.
What I have to do to switch ON these parameters?
vy 73;
Andy SP9NH
K3 S/N 1334
If you have old firmware, you may need to enable TECH mode.
It is not needed in FW starting from MCU 2.31 / DSP 1.89
73,
Marek SQ2GXO
K3 #1329
2008/10/17 Andrzej Oskedra [EMAIL PROTECTED]:
Hi;
I have not PA and FP temperature display on VFO B line, left are OK.
What I have to do to switch ON
Yesterday I connected my new factory built K3 to my Alpha 87A and the amplifier
keeps going into fault on the first key closure. Power was only set at about
30 watts. Is there a power spike causing this or some other problem I am not
aware of? I am brand new to this list and am not aware of
I also read about some owners having to replace the headphone jack.
The headphone jack will go to the back and I will put a hefty 6 mm phone
plug in there. Plenty of space there, hi hi.
I wouldn't be so concerned with this. I have had my K2 for 6 years without any
problems with the headphone
When I do the double hit on 'split' I move the freq mode to vfo B. ( good)
It also tell VFOb ( 2nd rcvr) to go to filter # 4 to which my vfo
A was 'set' , causing the sub rcvr to go dead, since I don't have a
#4 on the sub rcvr.
Is there a way to force Filter # 2 on... in the sub
I agree, tech mode should contain only those options used when setting the
radio up for the first time, or configuring the various modules on and off.
Whether that would stop my PA mysteriously setting itself to Bypass I don't
know. I haven't identified the circumstances that cause it, but I do
Problem on 80m SSB.
I am experiencing what I can best describe as ATU Flashover on 80m SSB.
Background - I have a K3 and Challenger 3 linear amplifier. Headgear is the
Heil Proset plus. I can tune up the rig and amp to well in excess of 500W
without any problem. CW can be operated at full
At present, I do not yet own any Elecraft items although several of the
Elecraft items on the web site do interest me. The primary reason for this
message is for basic information. I have an Icom 706 MK2G as the only base
HF radio. Recently, I asked on the Icom reflector if the T1-K Antenna
Terry
you do not mention the lenght of your inverted L. However if it is end fed
then it is unlikely to be exact 50 ohm. Then the length of coax gets
important because it may do an impedance transformation.
What is happening is that your tuner works in a high impedance load and that
means high
When you switch from CW to SSB are you also changing frequencies from
the CW subband to the SSB subband? If so, repeat your test on the same
frequency.
My simple world view makes this one easy to solve. Stay on CW :-)
- Keith N1AS -
- K3 711 -
From: [EMAIL
Terry,
As another responder indicated, you have a high impedance at the
feedline/ATU junction - a high impedance translated into a higher
voltage for any given amount of RF, and when that voltage is high
enough, the tuner capacitors will arc. When they arc over, the
capacitance changes
On Fri, 2008-10-17 at 10:00 -0500, Jim Good wrote:
In reading the assembly manuals and the errata sheets, there is only a very
brief mention of using J1 to connect the tuner to a non-Elecraft radio.
The owner's manual (which is separate from the assembly manual) has a
description of how J1
Define 275W. Is that PEP or is that average. If it is what the meter reads
the SSB peaks might be much higher. I assume you actually knew this.
Another possibility is the K3 power spike on first SSB syllable, that might
be higher than the one on CW. Whenever you change mode or power setting, the
This is a known out-of-band birdie on the K2 and has always been there.
Part of our design goal on the K2 was to place any strong mixing products lile
this outdie the ham bands.
All superhet receivers will have birdies. Fortunately most are quite weak and
are usually covered by band noise.
Are you running your K3 tuner into the amp? If so, shouldn't' the amp be
giving the radio a nice match to start with? Are you running a tuner after
the amp as well? If you are running the K3 tuner, turn it off.
Is this on the exact same frequency or are you switching between the cw and
ssb
Hello,
Can anybody help explain clearly to me how I connect a receive converter up to
my K3?
I blew up my 2m receive converter hooking it up to the main 28 MHz antenna
terminal
today and I don't want to repeat that if I can find a replacement somewhere!
I have found the transverter
Hi Lance,
I suppose you have to define transverter to use LowPower driving (XVx
PWR L x.x) to use XVTR IN for RX (as KXV3 will be active in this mode).
(Or you can set KXV3 to test in CONFIG (KXV3 TEST not norm) when all
is routed via KXV3 ports but this has nothing to do with XVTR settings
-
Lance
The easy way to mute the K3, while using a separate TX, is to key the K3
with TEST MODE set to ON. I use the same arrangement to mute a K2 from
the K3.
73 Dave, G4AON
K3/100 #80
http://www.astromag.co.uk/k3/
--
I also
Hi Lance group.
I also would appreciate it if somebody knows how to mute the K3 receiver
when a
separate XMTR is being used. I searched the manual but could not find it.
Something I've done to overcome a similar problem was TXing the K3 as well,
perhaps have it go split somewhere away from
Hello,
I'm having problems with my power out put. I have followed the calibration
procedure and the K3 more or less puts out the desired power on all bands.
(I'm not sure how accurate my PWR meter is)
The problem occurs in SSB when I'm using a microphone (Heil pro set plus or
a Kenwood MC-43S,
gd0tep wrote:
*Hi Lance group.*
I also would appreciate it if somebody knows how to mute the K3 receiver
when a
separate XMTR is being used. I searched the manual but could not find it.
Something I've done to overcome a similar problem was TXing the K3 as
well, perhaps have it go split
Lance,
you can disable TX-out by TX INHIBIT signal to be sure you are not
emitting RF. It is possible by some short pins on connector only or
you can force this together with PTT from the second RIG. Then you do
not need to go to TX TEST mode manually and you will disable TX only
when second
Lance,
Your frustration is coming through - yes, just before an event weekend
is not really a good time to check everything out. Have you tried a
power cycle? Is the receiver continuously muted? Was the key closed
when the K3 was powered up? There is a TX lockout if the key or PTT is
Don
Spot on! Thank you and also to Mike, W0MUshould have picked this up
myself. Haven't done any operating over the last few weeks but I have been
tidying up the antennas around the garden. Whilst doing this I thought that
I would improve my 80m antenna by firstly spreading the radials out a
Hello
My K2/100 just recently started going to 100 watts output
as soon as I set the output to 11 watts or greater.
I disconnected the amp, and am back to the qrp version and
everything works fine. So I asume the problem is with the
amp. Am I correct?
Thanks
Scott N5SM
Scott,
Yes, the problem is with the KPA100. The most likely thing is that
diodes D16 and D17 are damaged which results in the KPA100 not being
able to tell the K2 that power output is being developed, so the K2 just
increases the power to the max in an effort to obtain a power output
Maarten van Rossum wrote:
Hello,
I'm having problems with my power out put. I have followed the calibration
procedure and the K3 more or less puts out the desired power on all bands.
(I'm not sure how accurate my PWR meter is)
The problem occurs in SSB when I'm using a microphone (Heil
Hello Maarten!
The problem occurs in SSB when I'm using a microphone (Heil pro set plus
or a Kenwood MC-43S, that doesn't matter). When I have set the power to
100W and I yell Oooolaaa (into a dummy load off course) into the mic,
the PA puts out full power en after a couple off seconds it
Ok, I need some help.
My K3 has been working great, even though I have not found much time
recently to operate. I listen more than I talk, and everything has
been great. Today I sit down after work and turn it on and attempt to
transmit. No power output. The display reads zero watts,
...The TX icon is flashing on and off.
This means the radio is in TX TEST mode.
Hold the TEST button (the right side of the MODE switch) to cancel TX
TEST mode and return to normal transmit operation.
73,
Lyle KK7P
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Thanks Lyle, but I have already tried that, and the K3 is NOT in test
mode.
On Oct 17, 2008, at 7:26 PM, Lyle Johnson wrote:
...The TX icon is flashing on and off.
This means the radio is in TX TEST mode.
Hold the TEST button (the right side of the MODE switch) to cancel TX
TEST mode
William Evans wrote:
Thanks Lyle, but I have already tried that, and the K3 is NOT in test mode.
Check CONFIG TX INH. If it isn't off and the TX INHIBIT pin is floating,
it might cause the symptom you have.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
Thanks Vic... that was it. Somehow TX INH had been set to LO=INH. I
set it back to OFF, and power suddenly returned. Thanks again for the
wisdom of this group!
Bill
W4ish
On Oct 17, 2008, at 7:37 PM, Vic K2VCO wrote:
William Evans wrote:
Thanks Lyle, but I have already tried that, and
Hi Don,
A few K3 firmware revs ago, after I updated the radio, I noticed some
strange power on behavior. I was in touch with Wayne at the time on
another subject, and he indicated these symptoms indicate a high
leakage on Q2 - RF board.
Symptoms:
Rapid-firing the Power switch only lights up the
Matt,
Wayne have more intimate knowledge of the K3 hardware and MCU firmware
than anyone else. If Wayne believes that replacing Q2 will fix the
problem, then I would replace Q2.
73,
Don W3FPR
Matt Zilmer wrote:
Hi Don,
A few K3 firmware revs ago, after I updated the radio, I noticed some
KX1 3 questions.
1. KX1, s/n 2074, (basic unit), is on the air. Works perfectly with 589 QSO's
on 40 20 at 4+ watts. Only problem was installation of the *$%*
battery holders with screws provided. Elecraft sent longer ones but the
plastic holders still are too thick for the longer
My T1 is sitting unused, along with my FT-817. The reason is that I haven't
figured out the best way to mount them together. I am not looking for a
fancy compact package, and it seems too messy to put the tuner into the
radio's battery compartment (which I don't use for anything). My basic
45 matches
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