George,
Solid wire will eventually break if it is flexed - and it will break
right where the terminals are attached.
Stranded wire that is soldered will also break - right where the end of
the solder that wicked up the wire stops.
The best is stranded wire with crimped connections made
Bob's statement (below) provides a good reason for using a dedicated USB
soundcard for digital modes - and make sure Windows does not set it as
the default soundcard.
You do not need an expensive soundcard for digital modes, many of them
can be found in the $25 price range and are more than
It may be better said that a Noise Blanker responds best to impulses
with a fast rise time like ignition noise from a gasoline engine. It
does not have to be repetitive (but often is).
73,
Don W3FPR
On 6/14/2019 2:05 PM, Wes wrote:
I have one little nit to pick with this. In a properly
Or any other multiband antennas in a multi-transmitter situation.
73,
Don W3FPR
On 6/14/2019 1:36 PM, Bob McGraw K4TAX wrote:
Neither should G5RV antennas.
Bob, K4TAX
Sent from my iPhone
On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote:
oops... I meant to say:
Inverted V
. At
50% I can control 4-5 bars with MIC GAIN but at 100% ALC cannot be
rolled back to 4-5 bars - it stays way high. I’ll try as you suggest.
Best regards,
Bret
aka Charles Jessee N4SRN
-- Original Message ------
From: Don Wilhelm
To: Charles Jessee, elecraft@mailman.qth.net
Sent: June 14
Bret,
I am confused by the first and second sentences of your post.
In the first sentence, you say you can achieve 4 bars with the 5th one
flashing.
Then in the 2nd sentence, you say that you cannot achieve that same
condition.
Are you aware that if you overdrive the KX2/KX3 audio with too
Jim,
Can I assume this is a newly purchased kit? Or are you building an
older one that has been sitting on someone's shelf for a long time with
Rev A boards. A serial number would be helpful - above SN 2999 will use
Rev B boards.
Given that you have 1.4 volts on the base of the PA
Richard,
I suggest you contact supp...@elecraft.com for that information and
possible resolution.
73,
Don W3FPR
On 6/13/2019 3:07 AM, Richard Corfield wrote:
Serial number is 8383, if that helps place the manufacturing date and
therefore whether it's part of a batch with a known issue?
-
Bill,
Yes, do the CAL FIL calibration first. If that does not cure anything,
then proceed with the rest of the alignment, but I doubt if that will
help much - the K2 alignment is usually quite stable over time.
The bandpass filter and other alignments are not going to change the
relationship
After consulting copper wire tables and typical connection resistances,
I can present the following analysis for a 20 amp load:
Often hams power their 100 watt transceivers through DC distribution
devices such as a RigRunner which will contribute to the voltage drop.
Also in-line fuses will
Rick and all,
You did not mention the "NO ALC" point for Elecraft gear.
The ALC scale on the K3/K3S/KX3/KX2 gives you the ability to adjust the
audio level (the lower bars are NOT an indication of ALC).
ALC begins at the 5th bar.
Those Elecraft radios must be have the audio level adjusted so
Bill for receive, you only need the jumpers at J9 and J10 - it is quick
and easy to do with bent wires if you do not find the rework eliminators
is short order.
Those jumper wires will not complete the transmit path - only receive.
73,
Don W3FPR
On 6/11/2019 5:03 PM, Bill Coleman wrote:
I
Bill,
First try removing the KSB2 - put bent wire jumpers between pins 1 and 3
of J9 and J10. Then see if you get a good response in CW.
Oh BTW, make sure the CW filters are centered at your sidetone pitch
first - use an audio spectrum analyzer and if you have one, a broadband
noise
Wes,
You are asking about the limitations of the computer software
applications, particularly those providing virtual ports. So I don't
think a different radio will change things.
You might try Com0Com - have not used it, but I know it is different
than LP-Bridge.
I think your problem is
PM Don Wilhelm <mailto:donw...@embarqmail.com>> wrote:
Barry,
I do not believe that is true anymore (except for the ProSet-K2).
The original MH2 microphone was Heil, but that was changed a very
long
time ago.
Since you just bought the MH3, your best
Barry,
I do not believe that is true anymore (except for the ProSet-K2).
The original MH2 microphone was Heil, but that was changed a very long
time ago.
Since you just bought the MH3, your best recourse is to contact Elecraft
about a replacement.
73,
Don W3FPR
On 6/11/2019 2:15 PM, Barry
Jim and all,
That is not quite correct. KEY1 is for the 3.5mm jack on the side panel
while KEY2 is for the paddle connection on the front (the KXPD3). Check
the information in the menu listing description in the manual.
73,
Don W3FPR
On 6/10/2019 10:32 PM, Jim Rhodes wrote:
Actually you
Wes,
The most common cause is that the SSB IF filters are not aligned
correctly. Use Spectrogram for a visual indication of the filter
passband. See
http://www.mmccs.com/mmarc/n0ss/k2_filters_using_gram_v5r17.pdf. You
will not be disappointed.
If you need Spectrogram, go to my website
Steve,
It is rare to find a faulty encoder. Those encoders are the optical
type and almost never fail. I have seen only one failure in the time I
was repairing K2s and I have dealt with over 1000 repairs.
I would first reflow the soldering on the encoder wires and Front panel
U3 as well
Steve,
If the problem is that you just don't want to change out the MAX1406,
there are 2 unused TX/RX sections in the implementation in the KIO2.
You just need to cut the traces to the in and out pins used and wire to
another pair of pins.
OTOH, just replacing the MAX1406 may be just as
Rich,
There is no need to bypass the P3, just connect the SDRPlay to the P3 IF
output.
The P3 IF output is a replication of the K3S IF output.
73,
Don W3FPR
On 6/9/2019 7:04 AM, Richard Thorne wrote:
I'd like to try Win4K3Suite with an SDRplay receiver. I've been looking
for a block
Evert,
No, it decodes by band and not by frequency segments.
73,
Don W3FPR
On 6/6/2019 11:32 AM, Evert Bakker wrote:
A Q abt the KRC2:
Is it possible two switch to two different antennes within one band but
based on frequency span ?
David,
You are apparently looking for the Elecraft KRC2. It is on the website
- enter KRC2 in the website search box to find it.
73,
Don W3FPR
On 6/6/2019 10:52 AM, David F. Reed wrote:
In planning my next station, I have not found one item I would like to
add...
I wish to automatically
Reports from Beta Testers are no likely to be meaningful to the general
community of potential K4 users - because the K4 will be changed as a
result of Beta Test.
That is akin to someone who buys a new K2 and searches for mods and
changes that may date back to 1999. Those mods are no longer
Mike,
Yes, the first step is to download and install new drivers for your USB
to serial adapter. The FTDI adapters work best, if you are using a
Prolific adapter, I recommend replacing it.
Set the K3 baud rate to 38400 in the RS232 menu.
Do you also have a P3? If so, set its baud rate to
The other easy solution is to use only 5 channel hopping memories and
create a Macro to move the VFO A up or down 1.5kHz depending on whether
you stored SSB or CW frequencies in VFO A. The frequency shift is
constant for all channels, so one Macro will do for all channels.
Assign the Macro to
Fred and all,
I have observed what you found. On Channel Hopping, VFO A follows the
hop to the next channel, but VFO B does not.
While a "fix" may be coming sometime, it is not likely to be coming
soon. So I propose a workaround.
The simple solution is to set 10 channel hopping memories
Harry and all,
Yes, that clarifies things.
Pins 7 and 8 of the DE9 connector at the K2 end of the cable must NOT
connect to the K2 AUX IO connector.
But the wires coming from the cable (NOT from the D-sub connector), can
be connected together. Applications that expect CTS/RTS handshaking
Harry,
Before plugging that into the K2 AUX IO connector, the Green, Brown, and
Red conductors must be cut or damage to the K2 and/or the adapter can be
damaged. Note that the connector on the K2 is labeled AUX IO, and that
is for a reason - it is NOT RS-232.
At the very least, if that
Dave,
It does remember the settings on a per jack basis - at least mine does.
You just change the MIC SEL menu from front to rear when switching. The
gain and bias settings should remain the same.
Some hams don't like to explicitly enter the menu, but prefer to assign
it to a PF key.
73,
Mike,
What is the serial number of your K2? That is helpful information - the
Field Test K2s (SN 100 or less) are a bit different than the Rev A K2.
There should be only one diode from Q18 gate to ground. The anode
connects to the gate and the cathode to ground.
While the VFO/ALC mod is
Robie,
Either you have a KX3 problem or you are not tapping the knobs correctly.
Do you have the KX3 manual? If not, download it from the Elecraft
website and read through it. If you need more comprehensive and
detailed information along with exercises, you can order the Fred Cady
(SK)
Jim,
Yes, the K2 limits the power in a HI CUR condition.
First your DC voltage is low. Check the power cable and make certain
all connections are tight - I recommend #16 wire for the power cable,
but #18 should be OK. If you are using something smaller, change it to
the heavier wire. If
#10 or #8 wire will need the 45 amp contact blades.
However, if the purpose is to minimize voltage drop, there is no need to
use the larger connector - construct the power pole with #12 wire about
3 inches long. Then splice onto that with #10 or #8 wire for the rest
of the run to your power
Even being left handed, I have no problem using my right hand on the
knobs. That leaves my left hand free to do other things requiring a
greater degree of hand/finger coordination.
I like it the way it is.
73,
Don W3FPR
On 5/31/2019 11:42 AM, George Thornton wrote:
If Elecraft reflects
Lee,
Unless you can be assured that they are genuine Anderson PowerPoles, I
would hesitate to buy them. Buy real ones and save yourself buyers
remorse from inadequate contact area and the resulting voltage drop with
higher current.
If they do not have a "A" embossed on the tip of the
Tony,
The play in the VFO shaft is an indicator that the KX1 you have has been
well used for some time.
The easiest solution is just to replace the encoder.
I have repaired many KX1s, but only a few well used ones have had
encoder problems, so I don't believe there is a "bad batch of
wrote:
Thanks for the detailed reply. That makes sense entirely.
To note this K2 shipped in early May so there may be problems still.
Best regards,
Chris M0XTE
On Wed, 29 May 2019, at 14:49, Don Wilhelm wrote:
Chris and all,
Let me try to add some clarity to this J310 situation:
1. Thru-hole
Mike,
The real answer to your question is - do you have a problem with the
KPA500 and your 2M brick amplifier being keyed at the same time?
There should be no RF input to the KPA500 when on 2M, and when on HF+6M
there should be no RF input to your 2M amplifier.
So, are you OK with keying
Chris and all,
Let me try to add some clarity to this J310 situation:
1. Thru-hole J310s have been discontinued. Last August, Elecraft
ordered a new supply (from a new source) which proved to be inadequate
for the K2 PLL Reference Oscillator circuit. A source of New Old Stock
for J310s was
, but I’m not home to check the Revision.
I know your retired, but do you still do any repairs part time?
Thanks
Johnny AC0BQ
On Tue, May 28, 2019 at 8:25 AM Don Wilhelm <mailto:donw...@embarqmail.com>> wrote:
Johnny,
You have a Power Control problem - alignment is not goi
I looked at the path plot through Xenia at NWS. The damage line was
mostly North and Northwest of the Greene County Fairgrounds.
73,
Don W3FPR
On 5/28/2019 3:07 PM, Nr4c wrote:
Check the news. (CNN).
Think I saw Cenia mentioned.
Sent from my iPhone
...nr4c. bill
Claudio,
The RS-232 connector on the K3 is generally regarded as an input. The
computer COM port (or USB to serial adapter) is normally considered as
the output device.
First assure yourself (or contact support for those devices to be
certain there are no RS-232 DRIVERS (receivers are OK)
Johnny,
You have a Power Control problem - alignment is not going to fix it, and
you will have to correct it and have proper power control before any of
the alignment results make sense.
Since you indicate that the problem exists with only the base K2, that
is the place to start
Barry,
I think Wayne had his 'deposit' in a LONG time before Dayton.
73,
Don W3FPR
On 5/28/2019 8:37 AM, Barry wrote:
Wayne must have been the first one to get his deposit in at Dayton... :-)
Barry W2UP
__
Elecraft mailing list
Adam,
As I understand it, the KX2 is the receiver for your normal operating.
The SDR play is the receiver for the panadapter only.
As far as transmit and receive are concerned, the KX2 should operate as
normal (although you can use the rig control portion of Win4K3 if you
want to control
Adam,
The PX3 uses the RX I/Q output from the KX3.
The KX2 has no RX I/Q output, so it cannot drive the PX3.
Win4K3 does work with the KX2 and it has the capability to provide a
panadapter display. Just how that is done for the KX2 I am not certain,
but you may want to check out the Win4K3
. I’m
also going to re-do the calibration of both SWR meters, just make sure no
damage was done to the KAT100.
On May 25, 2019, at 1:52 PM, Don Wilhelm wrote:
I only partially answered the question about when each wattmeter is used.
If the KAT100 is connected to a QRP K2 (KPA100 physically removed
A moderate bandwidth like 400 Hz will also help provide good decoding.
73,
Don W3FPR
On 5/26/2019 9:51 AM, Nr4c wrote:
First, press SPOT to “ zero-beat” the signal. Then adjust the threshold so that
the CWT bar is flashing with the signal. This should work.
Sent from my iPhone
...nr4c. bill
The KAT100 ATU needs the control signals from the base K2 to turn on and
function.
So the answer is that it will only function with the K2.
Yoou might consider the KAT500.
73,
Don W3FPR
On 5/26/2019 5:39 AM, Yoshida Akira wrote:
Hi all
Does KAT100 ATU work with transceiver other than K2 ?
Since any K4 has the subRX built in, I don't see the problem, although
some changes in operating habits may be in order.
For working DX, tune to the DX station with VFO A - then put VFO A into
VFO B - Listen to the DX on the subRX.
Then tune with VFO A for a suitable transmit frequency.
Hank,
You don't need a highly accurate frequency counter. You can get closer
with the beat note method.
You can use an audio spectrum analyzer (like Spectrogram or SpectrumLab)
running on your computer and the K3S rear headphone jack connected to
your soundcard Line In.
That will give
I only partially answered the question about when each wattmeter is used.
If the KAT100 is connected to a QRP K2 (KPA100 physically removed)
through a KIO2, then the KAT100 wattmeter will be used for power control
and SWR display in the K2 display.
As long as the KPA100 is physically
Bill,
Both wattmeters (KPA100 and KAT100) are in-line at the same time. With
the KPA100 installed the KAT100 wattmeter is only used to calculate the
SWR and use that value to light the SWR bargraph. But otherwise they are
electrically equal.
Why the KPA100 diodes get zapped while the KAT100
Jim,
That would be practical only if ALL users downloaded each and every
firmware update as it came along - I am sure it should be relatively
easy to display the latest firmware release notes.
As it is, the release notes are shown in the Help tab.
But many do not update firmware each time it
Pete,
Download the most recent copy of K3 Utility and you should find all the
more recent Firmware Release Notes.
A full listing of the notes can also be found on the Elecraft website.
73,
Don W3FPR
On 5/23/2019 4:23 PM, N4ZR wrote:
Hi Don - I know I can download a fresh manual, and it may
Pete,
If you download the newest manual, you will have the most up to date
information that is printed in the manual.
Above and beyond that (and equally important), you should pay attention
to the Firmware Release Notes. They are on the website and also
included on the K3 Utility Help Tab.
at Watsonville, but NOT the
classic gear.
73,
Don W3FPR
On 5/23/2019 1:56 PM, Doug Hensley wrote:
Don, I think that is because the early stuff is farmed out to contract people who
may not have an email routine going yet. The K1 & K2's were usually handled by
Don Wilhelm who just retired. You m
Gregg,
I believe the question is more properly stated as "Does the logging
program format the string of ASCII characters as a "KY" command for
Elecraft gear?"
I have come to believe that it does not - it just sends ASCII characters
in a format acceptable for the WinKeyer.
73,
Don W3FPR
Jim,
It is likely to work OK even with the reduced PLL range.
If you want to correct it and gain some temperature stability for your
K2 at the same time, add the BFO upgrade modification - get BFOMDKT from
Elecraft.
That kit contains a new PLL crystal as well as parts for the BFO.
You can
Chris,
If it is a EEPROM data problem, then a Master Reset should load it with
default values - hold the 4, 5, and 6 buttons in while turning power on.
I have not found that the EEPROM has been the source of the problem, but
rather Q19.
Q19 should oscillate with anywhere between 0 volts and
Neil,
If you receive the individual emails using a good email client running
on your computer, you can do just as you requested. Unfortunately, it
does not work that way for the digest nor if you are reading via webmail.
My email client has a filter set to move all incoming email with
Chris,
If your kit was shipped between mid-August 2018 and mid-January 2019,
then the most likely problem is that Q19 should be replaced with a new
J310 from Elecraft.
As for the 7.07 volts from U6A pin 1, that is not necessarily the cause
of the problem (Q19 should oscillate even with
Hank,
The real world difference is that you will see less change with
temperature changes with the high stability TCXO.
The phase noise improvement is provided with the new synthesizers and
not with the TCXO.
73,
Don W3FPR
On 5/19/2019 1:35 PM, h...@optilink.us wrote:
Hey Folks.
In real
John, Buck and all,
Questions of that nature can likely be addressed better Tuesday after
8AM Pacific time. The developers will be back from Dayton by then and
can respond with authority rather than guesses from those who have not
measured those parameters.
In the meantime, we have the
Implementing that for the XV144 could supposedly be as easy as lifting
the end of C15 which connects to Q1 and injecting the 116 MHz signal at
the 'flying lead' of C15.
73,
Don W3FPR
On 5/18/2019 12:58 PM, Edward R Cole wrote:
Another aftermarket solution might be the new DIGILO PLL synth
Terry,
I agree with Bill. I suggest you record your important menu preferences
with paper and pencil.
The K3 configuration file is for disaster recovery, and not intended to
transfer the configuration of one radio to another. In fact, it is
saved with a serial number identifier so it can
Tony,
There were no Factory built KX1s - they only came as a full solder kit.
73,
Don W3FPR
On 5/17/2019 7:31 PM, ab2cj wrote:
All:
Interested in a used KX1. Must be in good condition, preferably factory
built with tuner.
__
We all will miss Fred. My condolences to his family and friends. I had
the pleasure of reviewing the draft of his first K3 manual.
I never had the pleasure of meeting him face to face, but we had many
email exchanges.
I have a signed copy of his K3S and P3 manual that was a gift from Fred,
Bob,
I skipped Dayton this year.
It is true that there is no stock means of syncing the XV144 to an
external standard.
A few owners have said they were successful with replacing the crystal
with a circuit that is synced to an external standard, but I now nothing
of that implementation.
Issac,
That current draw seems about normal to me. To reduce the current draw,
increase the power source voltage - 14.5 volts or so will reduce the
current.
The K3 power control circuit is designed to maintain the requested power
output - so more voltage equals less current for the same
Ted,
The kit assembly manual information will be gleaned from the experience
gained from the build of the first production models.
That was true for the K3 and KX3 - yes it is unlike the experience with
the K2, K1 and KX1 which were not available as factory asssembled (kit
only), but they
Chris,
The hole in the K2 front panel should be enlarged ONLY enough to pass
the threaded section of the encoder - NO LARGER.
With that done, the first shoulder of the encoder at the base of the
threaded section will fit flat against the metalwork.
No need for any additional hardware or
Peter,
After a K1 Reset, nothing needs to be adjusted, but you will have to do
the menu related settings:
STP, STL, b1 and b2 settings (b3 and b4 if a 4 band board) and CAL OPF.
CAL OPF is not difficult, but does require a signal of known frequency
on each band - it is just an adjustment of
Igor,
It is in the manual, see Remote Control of the KX3 starting on page 28.
73,
Don W3FPR
On 5/14/2019 3:56 PM, Igor Sokolov wrote:
Interesting feature. Nice to know. Is it documented in the manual?
73, Igor UA9CDC
14.05.2019 21:00, Lyle Johnson пишет:
KX3 (but not KX2) can be turned on
With the KX2 and KX3 two button power on, I would think that they are
not a good choice for remote operation. OTOH, the K3 and K3S do have
provision for remote power on via the Power On pin in the ACC connector.
The two button power on/off is present so the KX2 and KX3 cannot
accidentally be
Petr,
After the reset, you should not have to do VFO calibration, but you will
need to set the VFO Offset (CAL OPF) in the menu. That requires only a
known frequency signal for each band that is installed and button taps.
73,
Don W3FPR
On 5/13/2019 11:45 AM, Petr, OK1RP/M0SIS wrote:
Hi
Petr,
Check the VPOWER signal line to see if there is any DC level change.
If is is a steady DC level, then try changing QW5 and/or D18.
If VPOWER varies, then the MCU or DAC is causing the variation. In that
case, I would try a Master Reset (See manual Reset to Factory defaults),
but first
and LNA bias.
I measured the gain across the ATF to be 10.5dB. Does that indicate
that the PHEMT needs to be replaced?
Raj, N2RD
-- Original Message --
From: "Don Wilhelm"
To: "Rajiv Dewan" ; Elecraft@mailman.qth.net
Sent: 5/12/2019 2:03:48 PM
Subject: Re: [Elecra
Raj,
Has this XV432 worked before and recently developed weak receive? If
so, try peaking the RX input capacitor, and if that does not correct it,
replace the PHEMT (ATF34143).
If you recently acquired it, check the configuration jumpers for the 28
MHz IF - do you have a single coax and it
Also check to make sure you have not inadvertently selected the RX ANT -
that is also a per band setting.
73,
Don W3FPR
On 5/12/2019 11:55 AM, Mark Musick wrote:
Jack,
Check the ANT selection. On 40 meters is the ANT selection on ANT2 when it
should be set to ANT1?
73,
Mark, WB9CIF
Petr,
There may be nothing wrong. The POWER control line originates at the U2
DAC on the front panel and is applied to Q5 on the RF Board.
You should check all components associated with Q5 to be certain of the
value and good soldering.
Since the POWER signal line is derived digitally from
Dick,
No, they have a blank panel where the fans would be placed.
73,
Don W3FPR
On 5/9/2019 9:22 PM, d...@lazyh.me wrote:
Do these radios have the fans built in that come with the 100W versions.
Thanks,
Dick, K5AND
__
Elecraft
Paul,
You are telling the KX3 to use the 50 MHz output (on the BNC connector)
and not the 144 MHz output from the 2 meter option.
Change the XV2 IF parameter to 144.
The XV2 ADR parameter gives the band decode that will be sent when that
transverter is selected, and can be used to activate
Dan,
The K3 and K3S already have the separate tuning rates (sort of) - but
only when set to COURSE. See the VFO CRS menu description.
The other neat feature (which I use all the time) is to set VFO OFS to
ON which allows the VFO B knob to move VFO A in large steps (according
to VFO CRS)
John,
You apparently had some glitch in the computer to K3S communications
during the process. Go to the Help file in K3 Utility and look at the
instructions to "Force a Firmware Download" and follow the steps listed
there.
Once you get to the actual firmware download, do not interrupt it
Bill,
Set the power at 50 watts and do a TUNE.
Is the output power at 20 to 25 watts? If so, so far so good.
Now try a TUNE/DISPLAY (hold both buttons at once). Is the power near
50 watts? If so, you have proper power control and the problem is with
the LED display.
OTOH, if the actual
All,
Every ham should have a dummy load capable of the maximum power output
of the amplifier IMHO.
The "Cantenna" serves well for the purpose of checking the amplifier
operation and determining if a problem observed is the result of
"RF-in-the-shack" or an amplifier problem.
A precision
Frank,
There is no native capability for that in either the KX2 or KX3.
Most anything is possible, but it would take some design and engineering
by the KX3 user to add GPSDO input capability.
If you do not have those design and engineering skills, I suggest you
don't try.
73,
Don W3FPR
lies elsewhere. I also
thought about pulling C72 and replacing it with another one, but
unfortunately there was only one of that value in the kit and I don't
have anything like it it my parts stash. Any new thoughts?
de John, WB4GLJ
On Sat, Apr 27, 2019 at 6:00 PM Don Wilhelm <mailto:d
Dave,
Time to contact supp...@elecraft.com.
Unfortunately, they are only open for the next 45 minutes (unless
someone is working late), so be patient while the support folks enjoy
their weekend.
73,
Don W3FPR
On 4/27/2019 6:48 PM, rocke...@gmail.com wrote:
The input too high only happens
What are you using to drive the KPA1500?
Connect the driving transceiver to an external wattmeter, and then to a
dummy load. Do a KeyDown in CW mode and see what the actual power
output is shown on the external wattmeter.
My thinking is that your driving transceiver has lost its ability to
ted
range, and likely not at 7100 as well. Hope this tells you something
because I'm stumped.
I've got some plans for this evening so I may not get back on it until
tomorrow afternoon, but if you've got any more things for me to try I
will do them then.
John, WB4GLJ
On Sat, Apr 27, 2019 at 1
John,
That high voltage is trying to reduce the capacity of the varactors.
Which means there is either too much capacity or too much inductance in
the circuit.
Check the value of C72 first - it should be marked "271". Then set the
L30 slug to about mid-position and spread the red turns of
In addition to operating from a battery isolated from the solar system,
I would recommend that you do a quick test - remove all cables from the
K3S except the power cable and a coax to a dummy load. Power down all
power supplies in your station, including any desk lamps.
Go into Transmit by
It likely depends on which area of the US you are in.
I don't know about the current vernacular, but where I grew up in
Central Eastern Ohio in the 1950s and 1960s, cigarettes were known as
"fags", and a 'fag break' would be a perfectly acceptable expression.
I once heard a broadcast from
Frank,
You can certainly use the 13kHz filter for listening to AM - even for
transmitting.
It also works for FM as well, so the 6 kHz filter does not have to be
present.
73,
Don W3FPR
On 4/26/2019 8:36 AM, Frank Krozel wrote:
On weekends here in the Midwest there are many AM nets (as well
Windows will usually assign the same port number IF you plug it into the
same USB port.
You can go into Properties for each device and change the port number -
COM1 and COM2 are usually reserved for serial ports on the motherboard,
even if no RS-232 ports are present on the board.
73,
Don
Denis,
Are you referring to the K1 LCD Backlight Kit for a built K1? If so, I
have one available. $29.95 plus shipping.
Please let me know if you want it and I can compute the shipping cost -
USPS Priority Mail.
73,
Don W3FPR
On 4/24/2019 10:24 AM, Denis Dimick wrote:
I was wondering if
Scott,
What do you mean by "if I get tired of all the racket"?
The Elecraft gear is all electronic switching for T/R, so no relay
clacking racket. That is true for ALL Elecraft gear, even the oldest K2.
That may not be true for your old tube amplifiers, but the original
question was about a
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