Jim,
It is important to realize that the K3 bandwith is equal to the audio
bandwidth. The K3 reports the audio bandwidth.
A K3 with a 6 kHz filter is limited to a maximum of 3 kHz audio because
an AM signal is double sideband and the IF bandwidth for the AM signal
must be twice the audio
Joshua,
An Assembly Manual is shipped with every kit. You also will get the
Owners Manual.
Yes, the KXUSB is shipped with the radio.
73,
Don W3FPR
On 12/11/2019 12:39 AM, Joshua Gould wrote:
Greetings,
I'm getting ready to pull the trigger on a KX3 in the next week or so, and
was going
I have a Dead Zone inside my house.
I live in a stucco clad house with the stucco laid on wire mesh - it is
an effective Faraday shield. We do not have good cell phone reception
inside the house - that is why I do not have a smartphone, just a simple
flip phone to use when away from home. I
Bruce,
I am happy to learn that you had good success.
73,
Don W3FPR
On 12/9/2019 6:14 PM, K1FFX wrote:
Hi, Don -
Your suggestion was, as always, right on the money. I got the replacement
part from Elecraft today and I did the repair this afternoon. Your detailed
instructions at WY3A's
I believe there was concern about charging a Lithium based battery
inside the radio.
Would you want to bet your KX2's life on the risk of a battery fire?
I know the arguments about cellphones and laptops, but some of those
were catching fire at the time the KX2 was designed and the decision
The KX2 battery will NOT charge from the external power jack - the
lithium battery must be removed for charging. Unless handled with a
heavy hand, the bottom of the KX2 will withstand many, many removals and
installs.
If you are concerned about removing the bottom of the KX2, you can
always
Mike,
Keep it to "KISS mode" ---
You only need an external soundcard - the K3 has isolation transformers
built into the Line In and Line Out circuits. That means that you do
not need any complex interface box to provide that isolation. The
soundcard audio levels will be in the computer
Steve,
The KX3 has a built-in protection against audio overload. If there is
too much audio, it shuts down the audio chain.
Take a look at your mic gain setting on the KX3 - it is best set to
mid-range. The resolution between steps is much greater at the low end
and high end of the mic
John,
KX3 questions are certainly welcome here, but there is also the
non-Elecraft list at elecraft...@groups.io that provides a lot of
information about the KX3/KX2/KX1.
You can subscribe to that list using https://groups.io/g/Elecraft-KX/
Go to that page and scroll to the bottom (read the
Parts are different from options (assemblies).
Parts from Elecraft will continue to be available as long as the parts
are not obsolete, but the options will not after the stock is exhausted.
The options are assemblies of parts.
73,
Don W3FPR
On 12/6/2019 8:04 PM, hawley, charles j jr wrote:
Mike,
One of the potential problems is that the K2 works at 4800 baud, which
by current standards is slow.
The problem is that some USB to serial adapters do not like to run at
that slow speed. I have tested the Elecraft KUSB with my K2, and I also
can state the my 4 port Edgeport USB to
Dave,
While you may not be able to obtain new option modules, you can be
assured that Elecraft support and repair service for the K3/K3S will
continue for a long time to come.
The K2 has been around for over 20 years and is still sold supported
(and repaired by Elecraft). While the KX1 and
Mike,
The filters definitely, they are the same ones used in the K4.
The 2nd RX and 2m option may or may not be available. They are building
no more, so whenever stock is depleted, they will be gone.
You might want to consider putting them on a credit card and pay it off
monthly.
73,
Don
I should add that you should drive the K2 audio sufficiently, then
adjust the power knob for the desired power output.
Attempting to use the audio level to adjust the power output will result
in "Power Hunting" and could be the cause of some of your problems.
The proper audio level for the K2
How old is this K2? Those K2s with Serial Numbers below 2560 have the
original IF crystals. You will achieve a flatter passband if the
crystals on the KSB2 board (and the RF Board) are replaced with the
upgrades crystals.
If your KSB2 card is older, check the resistors on that board against
Jim,
Yes, the net result is the same as what Frank posted.
My article goes a bit further into explaining that there are multiple
audio level controls, and that none of them should be near the lower or
upper extremes (because the adjustment gets "touchy").
Just how many audio level controls
Jim,
With audio data modes (even if you are using SSB instead of DATA A), you
must have 4 bars solid on the ALC meter with the 5th bar flashing - that
is the NO ALC point for the K3/K3S/KX3/KX2.
If you do not have sufficient audio, the K3 will "power hunt" trying to
bring the power up to the
Jim,
How were you observing the power increase? There is a big difference in
how your situation can be analyzed depending on whether the power
increase is noted by the K3 display or whether with an external wattmeter.
I am not saying that you have no problem, but that the area to look can
Bruce,
Your headphone jack is broken and needs to be replaced.
If you don't know how to replace it, take a look at
https://www.qsl.net/wy3a/Replace_K2_Headphone_Jack.htm.
73,
Don W3FPR
On 11/29/2019 8:41 PM, K1FFX wrote:
Half-way through the CQWW CW contest last weekend [conditions, by the
Bruce,
You will need the 2.8 kHz filter unless you install the 2.7 kHz filter.
That filter MUST be configured for transmit on all modes except for AM
and FM which need wider filters.
73,
Don W3FPR
On 11/28/2019 12:26 PM, ockm...@gmail.com wrote:
K3/K3s Users,
I recently purchased a
Joe,
Your best learning tool will be the KX-Line book by Fred Cady.
You can order it from Elecraft - look under PRODUCTS -- BOOKS.
If you go through all the instructions and exercises in that book, you
can be answering questions instead of asking them.
The Firmware and Utilities to download
Olof,
Are you connected to the K3S using the USB cable?
If so, check the soundcard that WSJT-X is trying to use for audio output
- it should be USB AUDIO CODEC.
You must NOT have anything plugged into the K3S LINE IN jack unless you
are using a different soundcard than the internal one.
If
My apologies for my note yesterday on this subject, it was incorrect.
I have just been informed by one of the Elecraft engineers that I erred
in my statement that the K3 filters could be in any order, so Bill was
right.
See Dick's comments to me below. I did not see that note in my early K3
Ray,
Thanks for your wonderful praise and support.
However, at my age, I do not intend to put up the bucks to purchase a
K4. My fully loaded K3 and P3 along with my KX3/PX3/KXPA100/KXAT100
stations along with my fully loaded K2/100 Twins are more than adequate
for my wants and needs and
John,
It sounds to me like you actually do have some kind of antenna effects
floating around in your shack.
Pickup from RF on the outside of the coax being conducted to the ground
plane of the receiver through some "sneak paths".
What happens if you disconnect the receiver from the KAT500?
.
73,
Don W3FPR
On 11/23/2019 3:18 PM, Nr4c wrote:
Don’t forget, filters must be installed in descending bandwidth. The 13KHz
filter (if installed) must be in slot 1 I believe. Right, Don?
Sent from my iPhone
...nr4c. bill
On Nov 23, 2019, at 2:39 PM, Don Wilhelm wrote:
Robin
Robin,
It will work like yours does if you only have one filter configured and
that filter is in the filter 2 location. If there is only one filter,
it must be either the 2.7 or 2.8 kHz width filter.
If you don't know which filters are installed, you will have to
physically examine them
Mark,
Replace the encoder with its built-in switch. While you are at it, you
may as well replace all 4 of them.
73,
Don W3FPR
On 11/18/2019 11:44 AM, Mpridesti via Elecraft wrote:
Specifically the front panel button to select shift Lo Hi Width do not toggle.
Only stays in FC or BW.
Did a
Ingo,
The KXUSB is an FTDI USB to serial adapter with a 3.5mm plug on the
serial end. Yes, it will provide computer control of the KX3 through
many software applications that support the KX3. That adapter can also
be used to allow KX3 Utility to load firmware and do other functions.
If
Dave,
There in a block diagram in the back of the K3 manual.
The RX ANT OUT is what you are looking for - but remember that it has
the Low Pass Filter in the path, so the response at frequencies higher
than the band the K3 is tuned to will be attenuated.
If you need a direct antenna
Dave,
Yes, those locking screws should always be screwed in. Things may work
without it in a temporary setting (for a quick test for instance), but
for a permanent station setup, screw in those jackscrews. If the
equipment is moved or there is anything that might "tug" on the cable or
Robin,
That messsage is displayed when the small clock battery has been
replaced and the clock has not yet been set.
If you have the KAF2, see the KAF2 manual for the clock setting
procedure - follow the instructions EXACTLY. You must set the date
before the time.
If you have the KDSP2,
Ian,
All is fine here in North Carolina.
Don W3FPR
On 11/16/2019 3:14 PM, IK4EWX wrote:
At least in these two last days its impossibile for me to access Elecraft web
site.
Does other have the same problem? Is it really off?
Ian IK4EWX
Don,
That state (MCU LD and red TX light blinking) is typical when some
glitch occurs between the computer and the K3/K3S during a firmware load.
Turn the manual (or read the K3 Utility Help) section on "Force a
Firmware Download". Follow those steps and you should find success.
If the
Tony,
Soundcard problem or K3 problem. This is most commonly a problem with
audio into the K3.
How many bars illuminate on the ALC meter? It should be 4 with the 5th
bar flashing. If not, look at the audio levels.
See the article on my website www.w3fpr.com
73,
Don W3FPR
On 11/13/2019
Rich,
Online "answers" that are not K3 specific are often incorrect.
You must drive the audio so that you have 4 bars shown on the ALC mater
with the 5th bar flashing. That is the NO ALC point for the K3/K3S/KX3/KX2.
Once you have achieved that condition, leave the audio level fixed and
e 3
macros, and the KX2 stores no command macros.
73 de Dick, K6KR
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Don Wilhelm
Sent: Tuesday, November 12, 2019 14:04
To: Kevin Zembower ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Batch programming with K
Kevin,
I don't think you can do that with a KX3 Utility configuration file.
But you should be able to do it with Macros - look at the commands in
the K3/KX3 Programmer's reference.
An advantage of using Macros, is that they are stored in the KX3 and not
in a computer file, so no worry about
Ed,
The relays in the KXAT100 are not latching types, and the NC contact of
the antenna selection relay defaults to ANT1.
I can see a potential solution to your problem since you have 1 port of
the external SP4T relay not connected - put that relay on ANT1 and the
80/40 antenna on the
Jim,
Likely nothing wrong. If the K2 is ever powered when that menu
parameter (which follows the heatsink temperature) is set to a low
value, the parameter will try to go below 0 degC - but the math cannot
handle negative values, so it instead goes to a high value.
It is wise to check the
Jim,
Did you check to see where CAL TPA is set in the menu? Set it as
indicated in the KPA100 manual.
73,
Don W3FPR
On 11/12/2019 12:39 PM, Jim KO5V wrote:
Good Morning,
My K2 Twins have been working great for the past 11 months. I usually run about
90-95W.
This morning when I turned on
Martin,
I recommend you email supp...@elecraft.com because the support folks
have handy access to the K3 techs if they are not able to diagnose the
problem themselves, and can best assist you with the analysis.
73,
Don W3FPR
On 11/12/2019 7:48 AM, Martin Sole wrote:
Hi,
My K3 is quite an
Frank,
Yes, that is the battery supplied by Elecraft.
If you do not have the battery installed, you may also be missing the
thin foam strip that is to go between the battery and the bracket.
Nothing really special, and if you have some of that material on hand,
just cut it the size of the
Kevin,
I have not looked into the DX Engineering adapter to see how it is
wired. You should get that information from DXE.
What is apparently conflicting advice comes from the fact that all Heil
ProSets are not equal and not all are supplied with an adapter. There
are 2 basic types, one
Mikael,
One more thing - make sure you are comparing 80 and 160 equally. Do you
have the preamp on for both bands, or off for both bands?
Preamp on/off is a per band setting.
73,
Don W3FPR
On 11/8/2019 3:01 PM, Mikael Larsmark wrote:
Hi,
I am having an issue which confuses me quite a bit.
Mikael,
I would suggest you try 2 things - first connect a dummy load instead
of the open antenna connector.
Second, leaving the dummy load in place, power the receiver from a
battery to see if the higher noise is being caused by your power supply.
If neither of those things make a
Pete,
To my mind, the PTT and KEY OUT nomenclature used by Elecraft is
entirely correct and completely descriptive of what each does. Yes, I
know that some other rigs use PTT and KEYOUT interchangably, Icom
confuses my mind more by labeling the KEYOUT with SEND.
PTT is what you do to put
Tom,
To the best of my knowledge, there is no external signal from the K3/K3S
to indicate whether ANT1 or ANT2 is active.
If you have any manual switching in place, incorporate it in that switching.
73,
Don W3FPR
On 11/7/2019 12:12 PM, wa8...@wa8wzg.net wrote:
To All..
while we are on this
Holger,
Is your power supply voltage at 13.8 volts or better yet 14.3 volts?
That should be as measured by the voltage display on the K2. It should
not drop below 12.7 volts during a 100 watt transmit.
Part of the problem may be attributed to the voltage vs. frequency curve
of KPA100 D16 -
sTef,
Surely you can receive some standard station at a known stable frequency
and use Method 2. While WWV is suggested, that method will work with
any station having a know stable frequency.
Method 3 had been discontinued some time ago.
73,
Don W3FPR
On 11/3/2019 2:20 AM, DM5TU - sTef
Richard,
I would go with the Farm Equipment folks on this. Many parts of farm
equipment are actually turnbuckles of one style or another and some of
that equipment is left in the open air. The grease coating prevents
moisture intrusion and potential seizing no matter what the material
type
Dave,
That is not a problem, but a result of AM modulation.
The filters work at the IF passband.
The 5kHz is the audio bandwidth.
For an AM signal, the IF bandwidth must be twice the audio bandwidth -
there are 2 sidebands, and the audio width is only equal to the width of
one sideband.
You
Jim,
I would suggest doing a Direct Frequency Entry into each of the ham
bands - no guarantee, but it has a chance of setting things straight.
73,
Don W3FPR
On 10/30/2019 3:57 PM, Jim Sheldon wrote:
Having a bit of trouble with the KPA500 following the bands out of the
K3S. For some
For all interested, you might want to read the relevant article on my
website www.w3fpr.com. It was written directed at QRP ops, but applies
to QRO operations as well.
73,
Don W3FPR
On 10/29/2019 7:56 PM, Bob McGraw K4TAX wrote:
Bill:
Glad to see you post this fact. Hams have had it
Tom,
If you have not yet made the K3 switch to the 1 amp output, that alone
could explain the problem, especially if you have the SVGA option in
your P3. The 0.5 amp source is marginal in the P3 without any options.
73,
Don W3FPR
On 10/28/2019 11:17 PM, Tom Azlin W7SUA wrote:
Thanks Don.
John,
I do not think there is any harm in leaving it in operate. If you are
really "pinching pennies" on the electric bill, you might find a small
advantage to switching it to standby.
73,
Don W3FPR
On 10/27/2019 12:36 PM, Macy monkeys wrote:
I am in and out of the shack all day with
David,
Download the latest P3 manual and look on page 5. You will need the
CBLP3Y cable.
The KAT500 and KPA500 use the AUX cables and not the serial data. The
PC connection shown in the KAT500 manual is for connection to the PC for
use of the KAT500 Utility and has nothing to do with the
Tom,
That sounds strange. I would first suggest checking all the Power
Supply to K3, and either K3 AUX DC to P3 or the Power Supply to P3 power
cables for loose connections.
A drop from 14.5 to 14.7 volts down to 12.8 volts indicates a high
resistance power cable or a bad power supply.
I have Lithium batteries in my laptop, my KX2, my electric razor, a
tactical flashlight, and maybe some other things. I use the dedicated
chargers for each of them.
I think the dedicated, automatic chargers fill the batteries to 100%, so
there must not be a lot of caution to only charge them
Chuck and all,
How many actually use the clock in the K3, K3S, KX3 or KX2?
I certainly don't. In the case of the KX3 it is used to time the
charging of the internal batteries - good use.
I can see a ham without a watch or cell phone to want the rig to display
the time for logging, but for
Bob,
An alternative solution is to set VFO CRS to what you want (it is per
mode). Also set VFO OFS to ON.
Now you can use the RIT/XIT knob for coarse excursions across the band
while leaving VFO A set to FINE. Of course, if you turn RIT/XIT on, you
will lose that capability until you turn
All,
An additional point in mobile installations - do NOT connect the
negative directly to the battery. Follow the negative battery lead to
the point where that lead connects to the frame.
Many modern vehicles have sensing devices in that path from the battery
negative and the point where
Terry,
The KX3 has internal protection, but a fused power lead (only necessary
in the positive lead) provides additional protection. That is important
IMHO when powered by an external battery - there is a lot of energy in a
battery, and if the wire is pinched and shorts, it will spew molten
Neil,
Yes, I suspect it is the AGC. To determine the best settings for your
particular location noise, I suggest you read the "Noisy K3" article on
my website www.w3fpr.com.
73,
Don W3FPR
On 10/14/2019 1:36 PM, NOEL POULIN wrote:
Hello,
My call is VE2FWW and VE2RYY.
I was working in the
Randy,
Since you will be using the K2 with the KPA100, you need to strongly
consider adding to the list of upgrade mods shown on the K2 A to B
instruction sheet the K2 Keying Waveshape mod. It is important to keep
the keyclicks down. They are not obvious with the 10 watt K2, but rear
their
Mike,
As the instructions indicate, you only have to do it once.
That is for initial aging of the crystal.
If you are getting only 1 Hz drift on 40 meters, note that the frequency
stability spec for the KX3 is +/- 1 ppm for a temperature range of 0 to
50 degC. So you may not be able to do a
Joe,
I agree completely, bring your Johnson Matchbox to the next Field Day!
Or even your old plug-in coil open frame link coupled balanced tuner.
Who has a link coupled tuner (like the Johnson Matchbox) these days?
Those are big boat anchor box these days (and hard to find). I have one
, K4TAX
On 10/10/2019 5:27 PM, Ken G Kopp wrote:
Well-said, Don.
73!
Ken Kopp - K0PP
On Thu, Oct 10, 2019, 16:23 Don Wilhelm wrote:
All this talk of multi-band antennas for Field Day ignores the problem
of multi-station Field Day operation.
There is sufficient pickup of one transmitter's
All this talk of multi-band antennas for Field Day ignores the problem
of multi-station Field Day operation.
There is sufficient pickup of one transmitter's energy on the antenna
being used by a receiver on another band.
For that reason, my club has banned the use of multiband antennas for
Shu,
If you add the 58.5 foot wire to the 16.5' counterpoise, you have a 75
foot antenna. That is close to a half wavelength on 40 meters. You are
feeding it off-center which will allow it to be used on several bands
(even though one of the antenna wires is on the ground).
As I recall,
Clark and all,
The secret to stripping the outer insulation from ANY coax (including
the RG178) is to first score the outer insulation a bit (not trying to
cut all the way to the shield), then bend the cable at the score mark
which will stretch the insulation a bit - then a light touch with
Will,
The KPA3A firmware should be a part of the K3S firmware upgrade. There
is no separate KPA3A firmware. Just do the K3 firmware upgrade for the
other K3S.
I suspect your confusion is a result of the way wording in the report
was written.
73,
Don W3FPR
On 10/9/2019 6:39 PM, William
Randy,
Faced with that kind of decision (mainly dollar comparison), why fully
upgrade the K2 with the A/B mods -- just update the firmware to get the
added functions. From your question, I surmise you are not necessarily
'in love' with your K2 as some of the original builders would be having
Jorge,
Yes, look at VFO CRS menu (note that it is per mode). Also look at the
VFO OFS menu setting to allow you to use the RIT/XIT knob (as long as
RIT and XIT are not on) to step the VFO in the Coarse steps while
allowing the normal VFO knob to move in smaller steps (fine).
73,
Don W3FPR
I suspect he has a problem with that K3S and should contact support to
see what checks he can make that will be more informative than "It
doesn't work right"
73,
Don W3FPR
On 10/5/2019 1:10 AM, Wes wrote:
I doubt that the signal is being "pulled down." The source is an FET
follower which
od. The difference I’m seeing in
signal
strength is about 20+ dB. Is it normal for the if-out to be weaker
than a
direct connection to the antenna?
73,
Fred
AE4ED
On Fri, Oct 4, 2019 at 12:44 PM Don Wilhelm
wrote:
Fred,
Have you looked the K3 IF Output mod?
https://ftp.elecra
Fred,
Have you looked the K3 IF Output mod?
https://ftp.elecraft.com/K3/Mod%20Notes%20Alerts/IF_Output_Buffer_Gain_Mod_Rev_A.pdf
If you don't have the 13k SMD resistor or a 1/8 watt 13k resistor, you
can order the kit from Elecraft.
73,
Don W3FPR
On 10/4/2019 1:24 PM, Fred Massey wrote:
Mike,
The current draw now looks to be in line with the power output, but your
output drops off with increasing frequency.
First measure the voltage at the base of Q7 and Q8 during transmit. If
it is not in the range of 0.60 to 0.64 volts, replace Q11 and Q13.
Since you are measuring the
Bob,
The problem with that is the fan must continue to run for some time
after the return to RX so the residual heat from the TX cycle can be
reduced.
73,
Don W3FPR
On 10/2/2019 10:12 AM, Bob wrote:
Personally, I wish Elecraft offered a slightly different approach, rather
than a minimum
Finally, a post with a reasonable solution! - Use an email client on
your computer! Then it won't matter and you do not have to sign onto
several web based accounts.
I currently have 11 accounts that are handled by my email client
(Thunderbird). All incoming mail is sorted via filters into
Andy,
Physical fact related to any heat dissipating object -- if you apply an
air stream across the object, it will not come up to a given temperature
as quickly as having no air stream across it.
Specifically for the amp, if you run the fan speed minimum at 1, it will
heat to the 55 degC
George,
The VX command is "GET" only, so you can determine the VOX status, but
you cannot SET it.
See the K3 Programmer's Reference Manual.
73,
Don W3FPR
On 9/22/2019 6:16 PM, Kidder, George wrote:
GE all,
I recently tried to incorporate the VX command into some macros for my
older K3.
Robert,
Check the voltage at KPA100 U1 pins 11 and 12. Then set the K2
secondary menu to PA ON and tap DISPLAY. You should see Fan NOR, Fan
LO-HI, then Fan HI with subsequent taps.
With FAN NOR and the KPA100 quite cool, both U1 pins 11 and 12 should be
at 12 volts. With FAN LO-HI, U1
Jim,
The audio level settings have finer resolution when set to a mid-range
value. Make sure none of the audio controls (including the mislabeled
"POWER" slider in the application software) are not set near the upper
or lower extremes.
You have at least 3 level controls to consider - the
Lyn,
Hopefully you do not trust that an antenna in the attic will not be
susceptible to lightning.
I would not use ANY antenna during a thunderstorm.
Shut down the station and ground all feedlines.
73,
Don W3FPR
On 9/14/2019 8:27 AM, Lyn Norstad wrote:
Prior to the HOA changes, I was
David,
Put up a Rhombic favoring the direction of your most wanted DX.
It can be used as a multi-band antenna with lots of gain.
73,
Don W3FPR
On 9/13/2019 4:02 PM, David Haines wrote:
Well, the best antenna for me so far is the only one I have, a 51' G5RV
Junior dipole 30' above ground fed
That will work if the transverter can provide a +12 volt signal when it
is powered on and active.
In other words, it will work for transverters that are manually powered
on. An Elecraft transverter would have to be operated in the
non-Elecraft configuration.
73,
Don W3FPR
On 9/12/2019 6:59
Bill,
Before this "idea" gets too far, let's look at the practical side of it.
You are forgetting the resources required to do that - there is still
work to design the kit, test it, and write the assembly and test
instructions. Firmware would have to be re-written to remove the band
switch
It also may be important for the authorities in Brazil to know that the
KX2 does not transmit outside the amateur band limits.
If the Brazilian amateur band limits are different than those in the US,
Elecraft can program it to observe the band limits of most any country.
I don't think that
Lloyd,
The first thing you should do is adjust the Pre-mixer and RF Bandpass
filters for the 20 meter band. See the K1 manual for the adjustment
procedure.
If that does not bring the output up to at least 5 watts (when using a
13.8 volt or greater power source), then suspect the 22MHz
Dave,
What are you using to power the P3? Try a good stiff power source - not
a wall-wart.
If the power source cannot provide the current required at the voltage
required, then you will still hear a relay click as the P3 tries to
power up, but the current or voltage from the power source
Barry,
I think you may find a problem in the KPA500 T/R switch area.
Email supp...@elecraft.com for further checks and resolution.
73,
Don W3FPR
On 9/8/2019 2:34 AM, Barry Simpson wrote:
My KPA 500, which is several years old, has just developed an issue which
so far I have been unable to
Petr,
The specification for the K2 is for 10 watts or greater. Most will go
to 12 watts on 40 and 30 meters with an adequate power supply voltage
while few can achieve 15 watts on all bands.
There is nothing specific to the KPA100 option that would cause low
power output from the base K2.
Mike,
Have you tried moving the knob above the PITCH button?
The manual assumes you have read and followed the similar adjustments
that are mentioned prior to the PITCH adjustment.
73,
Don W3FPR
On 9/3/2019 5:34 PM, Mike Maloney wrote:
I recently inherited a KX3. I can see what CW pitch
Lyn,
I think one possible answer is that it got hot enough to release from
the soldering on the board during whatever event happened.
Sounds like it may have been hit with a lightning surge.
73,
Don W3FPR
On 9/1/2019 2:29 PM, Lyn Norstad wrote:
UPDATE:
I received my 6 week old KPA500 back
Sean,
It sounds like the voltage being applied to the internal circuits of the
KX3 is dropping below 8 volts, which is the voltage at which it will
turn itself off.
Check inside for any loose connections (weak battery holder springs for
instance) or power wire terminals that may be partially
Kevin,
While that may be an interesting exercise, it only takes one dit for the
KPA/KAT500 to sense the frequency and react accordingly.
The only thing missing is the ability to track the VFO frequency during
receive.
73,
Don W3FPR
On 8/31/2019 7:33 PM, Kevin McQuiggin wrote:
Hi Andy:
Order a replacement J310 FET from Elecraft and replace Q19 - that should
provide proper operation.
There was a time when Elecraft ordered a batch of J310s that turned out
to be marginal in the PLL Reference Oscillator. Those have since been
replaced with NOS stock which work well.
In other
Pete,
If you are using DATA A mode, that is done for you automatically.
OTOH, if you are "doing it the hard way" and using USB, then the answer
is yes, and also set compression to zero.
73,
Don W3FPR
On 8/29/2019 9:33 AM, N4ZR wrote:
I normally run my K3's TX equalizer to minimize low
Nate,
One thing is that you have a LOT of compression. That may be causing his
receiving to show excess energy, maybe even lapping over into the
opposite sideband.
First set the compression to zero, then either connect a dummy load or
use TX TEST and adjust the mic gain for 5 to 7 bars on
601 - 700 of 14022 matches
Mail list logo
