Re: [Elecraft] KPA500 Coax size requirements

or 5 years. Necessary because the tuners and the amps were remoted in a closet 20 feet from the operating desk. No problems. Ken K6MR From: elecraft-boun...@mailman.qth.net on behalf of Bob McGraw K4TAX Sent: Tuesday, August 20, 2019 12:59:11 PM To

Re: [Elecraft] KPA500 Coax size requirements

Carter: The KAT500 can be {should be} powered from the radio 12V supply.   I don't suggest a separate wall wart. The KPA500 can be powered from either 120VAC or 240VAC, your choice.  It should drive on all bands with 20 to 30 watts output from the K2 to reach full 500 watts output from the a

Re: [Elecraft] [KX2] WSJT-X Split - Rig or Fake It?

I'd suggest using RIG for SPLIT mode. This takes care of any issues of concern Bob, K4TAX Sent from my iPhone > On Aug 19, 2019, at 5:23 AM, MaverickNH wrote: > > I'm using a KX2/KXPA100 at 40W on a Win10 laptop with WSJT-X 2.1.0 for FT8. > Antenna is a G5RV at 40ft with base ATU 150ft away.

Re: [Elecraft] K3 - MixW interfacing

First depends on the version of FLFIGI.   I use v4.0.5 With that I choose K3/KX3 Beta as the radio from the HamLib. 38400 baud, 1 stop.   I do not have DTR or DTS checked.  With my configuration I end up with COM 5. All works great with these values. 73 Bob, K4TAX On 8/13/2019 8:14 PM, Ra

Re: [Elecraft] KX2 TX "Sticks On" in FT8?

From my take, the radio is in transmit mode, the ALC is showing 1 bar and stuck in transmit.  This to me says there is noise coming out of the computer, even though WSJT-X is given the receive command.   Somewhere in this post I read that the OP reducing the computer slider eliminated the issue

Re: [Elecraft] K3S Frequency Calibration Issue

See XNn OFS on page 68 of the manual.  This compensates fro oscillator/multiplier errors. 73 Bob, K4TAX On 8/9/2019 7:55 AM, Greg Troxel wrote: John Stengrevics writes: I have followed the calibration procedure in the manual (WWV as I don’t have a frequency generator). On 50 MHz, I am sp

Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and

Just seen on E-Bay.  Wow that's some mark-up! 73 Bob, K4TAX

[Elecraft] Tuning Electrically Short Antennas for Field Operation

From another source.   F Y I -- 73 Bob, K4TAX An article by two well-known radio amateurs, “Tuning Electrically Short Antennas for Field Operation,” appeared in Microwave Journal. Authored by QEX Editor Kai Siwiak, KE4PT, and award-winning researcher Ulrich

Re: [Elecraft] KPA500 PA current

Harry: Are these values on a dummy load or feeding the KAT500 or antenna direct? I just quickly checked my KPA500 into a dummy load at 500 watts output.  The currents run from 14.0A on 20M to a low of 11.5A depending on band.   This is done with 500 watts output as shown on my Bird 43 and Bir

Re: [Elecraft] Fan for KXPA100

Just curious on my part, with my K3S I ran FT-8 for about an hour making 1 contact after another on 20M.  Power output was set to100 watts although the external powers meters (2 different ones) show a bit more than 100 watts.    Started with PA temperature at 36°C and never saw it go over 50°C.

Re: [Elecraft] Windows Update and the K3 USB Audio

F Y I -  I pass along from another source. 73 Bob, K4TAX I am beginning, rather belatedly, to understand the source of the many users reporting low Tx audio levels with the 64-bit MS Windows version of WSJT-X. I stated above that "Pwr" slider in WSJT-X directly controls the Windows audio mix

Re: [Elecraft] KS3 internal 100 watt amp (K3S/100) is intermittent

Is there an ATU involved? If so , the TX signal and RX signal are then common to the path through the ATU. I don't think the RX signal goes through the 100W PA. Also consider the antenna port switching. That is common to both RX and TX signal paths. Bob, K4TAX Sent from my iPhone > On A

Re: [Elecraft] Sudden K3 failure

Just shows HOW IMPORTANT keeping a current back-up file becomes.   Glad that resolved the issue. 73 Bob, K4TAX On 7/27/2019 8:23 AM, Mpridesti via Elecraft wrote: Although I was unable to exactly determine the source of failure, by using the Restore K3 Configuration button and use a previou

Re: [Elecraft] P3 Not Zeroed

Just checked my K3S and P3 using WWV 5.0 MHz and 15.0MHz.  The error indicated on the radio is 1 to 2 Hz low.  The P3 is correct for both frequencies with a Ref Cal value of -55 for both frequencies. My K3S calibration method uses CW mode, with CWT active and press SPOT.  That will zero the ra

Re: [Elecraft] P3 Not Zeroed

First make sure the radio is correct on all WWV frequencies. I use CW mode and Auto Spot. That will get to within 2 Hz or better. Adjust the Ref freq to calibrate. Then you can calibrate the P3 to the radio. No tuning or listening for zero beat required. Bob, K4TAX Sent from my iPhone

Re: [Elecraft] Dummy Load recommendation

ure. You can precisely calculate power. > > Sent from my iPad > >> On Jul 23, 2019, at 9:38 AM, Bob McGraw K4TAX wrote: >> >> Since power meter systems are calibrated at a known impedance {usually 50 >> ohms}, and they are voltage sensing devices, any deviation fro

Re: [Elecraft] Dummy Load recommendation

Since power meter systems are calibrated at a known impedance {usually 50 ohms}, and they are voltage sensing devices, any deviation from the calibration value will introduce an error in power indication.  It just depends on how precise one prefers to be with power measurements. 100 watts into

Re: [Elecraft] Dummy Load recommendation

I agree that Bird dummy loads are some of the best. Be sure to get one rated for at least your maximum power anticipated. And do allow a margin of safety. I use 2x, thus for 100 watts I use a 250 watt rated load. I purchase all of my power measurement equipment from NM3E.COM. Bob, K4TAX

Re: [Elecraft] K3S HDSDR as a panadapter with IF out

I used  a RSP-1 {SDR Play} on the IF output of my K3S before I purchased my P3.   I used HDSDR and OmniRig as the controlling software.  I was very pleased with its performance, ease of use, and ease of configuration. 73 Bob, K4TAX On 7/22/2019 8:31 AM, Conrad PA5Y wrote: Hi Raj the Perseus

Re: [Elecraft] Feature Request: Shifting VFO

I agree with Don and Joe.   One of my radios some 10 years ago had the feature.  It could be turned on or off.  Yet some really didn't like it and some thought it was the best thing since sliced bread.    To me, my K3S in its present configuration fits ALL of my needs. 73 Bob, K4TAX On 7/20

Re: [Elecraft] Windows update clobbered me

Here is the link to the app that I use.  Take the FREE download. https://www.ccleaner.com/ccleaner/download 73 Bob, K4TAX On 7/20/2019 10:18 AM, Clay Autery wrote: THIS! jv16.org  <  The Registry Cleaner, et al. that I use. __ Clay Autery, KY5G (318) 518-1389

Re: [Elecraft] Windows update clobbered me

I would first reboot the computer a couple of times.  Then go to the Windows Update application and run it.  Take all the defaults and let it "do its thing".    A failed update will leave lots of fragments and crap in the computer. Also I suggest, as I do, run an application that gets rid of t

Re: [Elecraft] WSJT-X v.2.1.0

Yes as I wrote earlier there are 3 places which are "in series" if you will, that affect the audio level to the radio.  In order: (a) Windows SPKR level. (b) WSJT-X PWR slider, (c) K3S Line Gain. I don't know anything about TX audio processing changes and I don't find it a challenge or any dif

Re: [Elecraft] FT8 TX levels = no power

What is the Line gain on the radio? My values: For transmit: Computer SPKR level  @ 30 or -18 dB WSJT-X PWR at mid scale, thus  Transmit Digital Gain is -17.3 dB K3S Line gain at 25. For receive: Microphone (USB Audio CODEC) = @ 27 or -10 dB K3S   Line Out =  Normal 010 These values abo

Re: [Elecraft] FT8 TX levels = no power

0.1. is good enough for me. > > > - pjd > > -Original Message- > From: Bob McGraw K4TAX > Sent: Tuesday, July 16, 2019 7:24 PM > To: elecraft@mailman.qth.net; li...@w2irt.net >> Peter Dougherty > > Subject: Re: [Elecraft] FT8 TX levels = no power

Re: [Elecraft] FT8 TX levels = no power

Peter: In that configuration there are 3 specific places where adjustments are needed for transmit levels.   Left click on the SPKR icon in the lower right side of the computer display.  Set that slider to a value between 30 and 50.    That controls the transmit audio via the software.  And in

Re: [Elecraft] Am settings?

First, how have you determined that you will need EQ for AM? With the stock SSB filter you won't get AM to sound good.  And with the 6 kHz AM filter, that depends largely on the type of mike being used and your mike technique.   I  use the same mike and mike technique and EQ for SSB as I do for

Re: [Elecraft] ALC implementation

Don't confuse compression and clipping. Compression reduces dynamic range while clipping sets a hard ceiling and does generate distortion. Compression used correctly does not generate distortion. 73 Bob, K4TAX Sent from my iPhone > On Jul 12, 2019, at 4:00 PM, Wes wrote: > > What distor

Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard

It is silver sulfide {tarnish} which is semiconductor and will therefore conduct electricity, but will reduce the surface conductivity.   To what extent will depend on the thickness of the tarnish.    Surface tarnish will not affect bulk conductivity unless the "bulk" thickness is very thin.  

Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard

These cables, like many cables with connectors will accrue connector oxidation.  Often the oxidation is such that it prevents a very low level signal from passing.   The solution for many instances is simply to clean connectors. My approach is to use a Q-Tip, apply your favorite contact cleane

Re: [Elecraft] KPA500 Problem

I did look at the parameters of my KPA500 this morning.  In STBY the HV is 75.4 and in OPER at 500 watts out, CW mode, key closed the HV is 63.7 and current is 10.5 amps.   Amp is operated from a 240 volt source. 73 Bob, K4TAX On 7/7/2019 6:20 AM, Mark Murray via Elecraft wrote: For Doug, K

Re: [Elecraft] K3S Digital Mode Problems

I would remove Microham and connect the USB cable directly from the radio to the computer. Then set the audio CODEC as found under the Setup menu of WSJT-X. The SPKR level on the computer should be about 30%, the PWR slider on WSJT about 50% and the K3S Line Gain at 25 to 30. This should

Re: [Elecraft] OT a bit: K3 Ant Tuner

A bandpass filter is designed for optimum rejection and pass frequencies only when operated at 50 ohms.  Thus both ends of the filter need to see 50 ohms.  If the antenna has a SWR issue, no matter how small, it is not likely 50 ohms.  And if one uses the transceiver internal ATU to the input o

Re: [Elecraft] Digital modes on 144MHz only

Make sure you balance the station receive performance with that of the 1 KW amp.   Power is easy to generate.   Low noise receive performance is a challenge.   Start with a mast mounted low noise preamp, then low loss feedline such as 7/8" hard-line, and such. Remember, loss in the feedline add

Re: [Elecraft] bizarre 30m ---> 20m K1

These are available and are adequate for general ham radio use. They are $10.21 each + $3.50 shipping.  Worth having just to look at. https://www.ebay.com/itm/High-Accuracy-1-500-MHz-Frequency-Counter-RF-Meter-Tester-Module-For-ham-Radio/153185195290?epid=1770853839&_trkparms=ispr%3D1&hash=item2

Re: [Elecraft] The ERR 12V Message Question

First, check all power connections.   And if your radio is powered through a DC distribution strip, my suggestion is to not use the strip for the radio power.   In other words, connect the radio power cable direct to the power supply.    Also shorten the power cable to be more convenient and ha

Re: [Elecraft] No TX output in data mode

I've found that all USB cables are not created equal.  Some are apparently better shielded than others.   I tried and replaced 3 or 4 different ones / brands / lengths, in the same location and configuration {between my K3S and my laptop} before I found one that did not cause the WSJT-X softwar

Re: [Elecraft] When Transmitting on FT8 - KPA500 has issues - KD8ZYD

A clue. at 500 watts with the KPA500 there is an issue.  At 50 watts using just the K3 there is no reported issue.  What's the difference?   RF field strength.  Sounds like it might be and RFI issue. Check all PL-259's and make sure they are VERY TIGHT.   Check jumper cables, between each

Re: [Elecraft] When Transmitting on FT8 - KPA500 has issues - KD8ZYD

Sounds like the power from the K3 is too high.   Should be about 25 or so watts.  Actually, 20 watts drives my KPA500 to 500 watts output on all bands.  I trust the SWR as seen by the amplifier is 1.5:1 or less. Do you get any FAULT LED indications on the KPA500? You can use the KPA500 Utility

Re: [Elecraft] OT: Open Source Code

EXACTLY! 73 Bob, K4TAX On 7/1/2019 4:35 PM, Don Wilhelm wrote: Bill, That is quite generous of you, and all those who provide public domain code. Each of those software packages you mention run on a computer, and are a complete package within itself.  That is different than a situation

Re: [Elecraft] Elecraft KX4

Oh my.   It seems that folks keep designing good stuff, circuits, software,radios and the like, and for economic reasons end up with Chinese manufacturing some of the boards or assemblies.    It doesn't take them long to figure out what makes it tick and end up with a clone available at 1/2 the

Re: [Elecraft] Fusing power cable on K3

Since it is only to be used not mobile, I would not add a fuse to the power cord.   It only adds a few tenths ohms but it still is added R that isn't needed. As to ICOM, any radio that is used mobile should be fused in the DC Pos and DC Neg leads. 73 Bob, K4TAX On 7/1/2019 3:45 AM, David W

Re: [Elecraft] ALC implementation

Well written generic paper for operation of FT-8 and other digital signals of like mode.   It does not totally nor correctly apply to Elecraft radios as power management is handled by a totally different means.   And those means and methods suggested in this paper are not applicable to Elecraft

Re: [Elecraft] All knobs at max ...

Indian Chief said;    "White man stupid.  Thinks he can cut 12" off of one end of his blanket, sew it on the other end, and have a longer blanket". 73 Bob, K4TAX On 6/27/2019 3:26 PM, Logan R Zintsmaster wrote: Amateur astronomers refer to Advanced Time as Darkness Wasting Time. Logan, KE7AZ

Re: [Elecraft] Dual Receiver Tricks

Some years ago when operating HF packet in S. FL., I built an antenna switching arrangement which would take the error signal from my PK-232, count the errors and at some point switch to the other antenna.   One antenna was an 80M inverted V, the other was a Butternut vertical mounted over a sa

Re: [Elecraft] Firmware Updates

If you run the K3 Utility and the KPA500 Utility, download the latest from Elecraft and install same.  Also while you have those utilities up and running, do a back-up of each.  The current version for the KPA500 is 1.54 and for the K3S is 5.67 for the MCU.   I'd say both of your items are

Re: [Elecraft] ALC for Digi, One Last Check Please

range (pulsating). I always felt there was something intermittent but now I know. The issue is simply where I chose to test. I'd have never figured that out. Thanks and 73! Kev N4TT On Tue, Jun 25, 2019 at 4:17 PM Bob McGraw K4TAX <mailto:rmcg...@blomand.net>> wrote: The puls

Re: [Elecraft] ALC for Digi, One Last Check Please

The pulsating is the result of the refresh rate of the display and the 1500 Hz tone.  Change the TUNE tone to a non- 500 Hz interval such as 1250 Hz. or 1700 HZ as such.   Yes, in FLDIGI the TUNE tone is a single frequency you have selected on the waterfall scale or in the box at the bottom of

Re: [Elecraft] QRP FD KX2 Batteries & FT8 Report

25, 2019, at 3:12 PM, Bob McGraw K4TAX wrote: You can find the latest version {2.0.1} of WSJT-X here: <https://www.physics.princeton.edu/pulsar/K1JT/> https://www.physics.princeton.edu/pulsar/K1JT/ <https://www.physics.princeton.edu/pulsar/K1JT/> <https://www.physics.princeton.e

Re: [Elecraft] QRP FD KX2 Batteries & FT8 Report

== On Jun 25, 2019, at 12:48 PM, Bob McGraw K4TAX wrote: The WSJT-X software does have a provision for the correct Field Day exchange found under the Advanced tab. I worked several stations on FT-8 and also on FT-4 with the latest version.Most activity was on FT-8 of which a lot was fo

Re: [Elecraft] QRP FD KX2 Batteries & FT8 Report

The WSJT-X software does have a provision for the correct Field Day exchange found under the Advanced tab.   I worked several stations on FT-8 and also on FT-4 with the latest version.    Most activity was on FT-8 of which a lot was found on 6M.   There are a few issues with RC-7 for FT-4.  The

Re: [Elecraft] All knobs at max ...

There is w too much of that on the air today.    I'll be glad to see the day in which Riley Hollingsworth gets the VM program up and running. 73 Bob, K4TAX On 6/24/2019 1:59 PM, Ken G Kopp wrote: Such offensive behavior is an age-old ploy to maintain a clear frequency, especially wh

Re: [Elecraft] new computers, the search for serial ports and the meaning of life...

I respectfully disagree on Drake receivers and EF Johnson transmitters as boat anchors.   My finding is there no suitable place on either one to which one can attach a length of rope, hence becoming an anchor line.   Therefore, neither are considered to be a boat anchor. 73 Bob, K4TAX On 6/

Re: [Elecraft] Measuring SSB RMS Power

To evaluate speech use a pink noise source. That is the standard source signal for acoustic measurements. Bob, K4TAX Sent from my iPhone > On Jun 20, 2019, at 10:34 AM, John Oppenheimer wrote: > > Hi Don, > >> On 6/20/19 9:21 AM, Don Wilhelm wrote: >> John, >> >> That connection is OK if

Re: [Elecraft] Measuring SSB RMS Power

Here is a paper on the topic. This covers the correct procedure. http://www.eng.auburn.edu/~troppel/courses/TIMS-manuals-r5/TIMS%20Experiment%20Manuals/Student_Text/Vol-A1/a1-12.pdf 73 Bob, K4TAX Sent from my iPhone > On Jun 20, 2019, at 8:38 AM, John Oppenheimer wrote: > > Using DL1 with O

Re: [Elecraft] FSK D transmit

Perhaps you have a recent configuration backup. Load that into your K3. Should get you back to a working radio. Bob, K4TAX Sent from my iPhone > On Jun 18, 2019, at 12:19 PM, Jim Rhodes wrote: > > OK, I have done some fat fingered thing to my K3. For years I have been > running RTTY in FS

Re: [Elecraft] Next Question: DATA A with K3s and Fldigi

Kev: First the ALC indication should be, no must be, 4 bars solid and the 5th bar flickering.    To monitor your signal, use the MON function of the K3S.  It should sound VERY clean.  If there is buzz, growl, humm or anything besides pure tone, there are issues to be resolved.  Check all

Re: [Elecraft] K3s Sensitive adjustment for FT8

6/16/2019 6:04 PM, Bob McGraw K4TAX wrote: Also if you use your computer for other "sound" activities, any change made from that activity may or will change other things.    Just understand how things works and expect to quickly be able to make adjustments with good understanding as t

Re: [Elecraft] Terminal resistance

The company for which I previously worked designed and built recording studio consoles.   In order to eek out every bit of noise, that is achieve the lowest noise floor, it was necessary to crimp and then solder the lugs on the power supply cables on both ends.  Crimping was only OK and was don

Re: [Elecraft] K3s Sensitive adjustment for FT8

As I've written in the past, there are 3 places which affect the audio levels.   As a good rule, all  three need to be adjusted and all about the same value.   Thus the computer SPKR level needs to be about 30% to 40%,  the WSJT-X PWR slider about 30% to 40% and the radio line gain about 30% to

Re: [Elecraft] K3s Sensitive adjustment for FT8

You need to back down the level out of the computer. Also the PWR level in the software, which is actually audio level , needs to be backed down. This should allow you to run the Line Gain at 25 to 35. Never run any of the controls or levels at maximum or near minimum. Mid range is best an

[Elecraft] Tuning Electrically Short Antennas

From a source and a friend of mine, KE4PT. F Y I - {quote} In article by two well-known radio amateurs, “Tuning Electrically Short Antennas for Field Operation,” appeared in Microwave Journal. Authored by QEX Editor Kai Siwiak, KE4PT, and award-winning researcher Ulrich Rohde, N1UL, the art

Re: [Elecraft] FIELD DAY PREP

d. We couldn’t operate CW on the same band even though there was no problem caused by his SSB signal. Victor 4X6GP On 14 Jun 2019, at 20:52, Bob McGraw K4TAX wrote: So was the issue the result of poor shielding and connectors of cables inside the trailer or actual antenna separation? That would

Re: [Elecraft] FIELD DAY PREP

Y PREP When running multiple HF transmitters simultaneously its wise to: - avoid multi-band antennas, or - use external bandpass filters, or even better - avoid multi-band antennas and use bandpass filters 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: donov

Re: [Elecraft] K3 Port sharing redux

Very good info to know. Thanks for sharing. 73 Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 5:58 PM, Wes wrote: > > In an earlier post I asked for help from the collective wisdom of this group. > In response I received a lot, some via the reflector, some privately. I > would like

Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

David et al; My statement is almost word for word from the Elecraft K3 manual.   And some from work done by Art Collins and company at Collins Radio.  They prescribed the function of a Noise Blanker as follows: "The following operational requirements were kept in mind: 1. Reduction of igniti

Re: [Elecraft] FIELD DAY PREP

gain if he wanted to make any contacts.  It took three steps of backing down his gain to get him to reasonable copy. He was over 10 db weaker but suddenly started running stations. Cranking the knob to 11 is, as you say, totally counterproductive. 73, Dave  AB7E On 6/14/2019 10:52 AM, Bob

Re: [Elecraft] FIELD DAY PREP

which we > (CW) were obliged to share a trailer. > > I tried a TRP-150 for the first time on the air this morning and a station in > Michigan detected no clicks, truncating, or other aberrations. > > We'll see. > > 73, > > Kent K9ZTV > > > > &

Re: [Elecraft] FIELD DAY PREP

nown that K3 transceivers have built in bandpass > filters. As far as I'm aware their performance characteristics have > never been published, hence our preference to also also use external > bandpass filters. > > > 73 > Frank > W3LPL > > >

Re: [Elecraft] [KX2] WSJT-X & Win10 Volume Mixer

>From experience, I find running any audio level at 100% is usually an >indication that the levels throughout the "system" are not correctly balanced. > With my version of Windows 10 Pro the SPKR level runs 30% to 35%. With the radio and or the Signalink the PWR slider on WSJT-X is 50 to 60% o

Re: [Elecraft] FIELD DAY PREP

With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator.   I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob,

Re: [Elecraft] K3S soundcard after Windows 1809 update

I just completed update of this Windows 10 Pro system, 1809 update.   Checked to see if WSJT-X communicated between the computer and radio and find all is well.    No issues, sound card both ways is correct and with my K3S works as it should.  I didn't have to change anything.  Also checked HRD

Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings

The Noise Blanker only affects repetitive pulse noise such as ignition type noise.  Lightning and atmospheric is random noise. As to the Noise Reduction, I find that use of the Attenuation and RF Gain control is far superior to using DSP systems.  Also remember it is Noise Reduction and not noi

Re: [Elecraft] Silent power supply for a K3s

Regarding "heavy gauge wire", I suggest one measure the voltage drop using a DVM connected direct between the power supply Pos terminal and the radio Pos terminal.   Likewise do the same for the Neg DC line.   Put the radio in CW mode and close the key for rated output.    If one finds more tha

Re: [Elecraft] K3 port sharing and FT-8

I run WSJT-X V2.xxx with my K3S and have no issues with other applications, port sharing as such. Only use one USB cable between the radio and computer. I've found the more applications one runs, then one WILL have more problems. Thus the question "has one made their system overly complex?"

Re: [Elecraft] Silent power supply for a K3s

I've found a good source for power supply wire for the DC connections.   Automotive primary wire, #10  AWG.  This wire is made using many small strands which make it very flexible. Various colors are available.   I use Red {DC Pos}, Black {DC Neg}  and White {equipment bonding wire}.   Also I u

Re: [Elecraft] STRAIGHT KEY ISSUE RESOLVED

Gerry: Thanks for reporting your findings and correction.    It seems so many folks will post a question, receive an answer and solution, and are never heard from again.  Sharing makes us all better informed. 73 Bob, K4TAX On 6/11/2019 8:16 PM, Gerry Miller wrote: I WANT TO THANK YOU F

Re: [Elecraft] KX3 and the Sigmalink USB

The Signalink USB has a monitor jack. Thus one can plug in headphones on the back of the unit. And using a 0.1 cap in place of the internal jumper in the unit eliminates the need to turn off bias. Seems all of your concerns are resolved. Bob, K4TAX Sent from my iPhone > On Jun 9, 2019, at

Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

I've been running Window 10 Pro since the initial release.   I am very pleased with it in all aspects.  Yes, I did have a learning curve initially, but I've found every piece of software and hardware runs flawlessly.  Most of the issues were my lack of knowledge and understanding on how thi

Re: [Elecraft] Silent power supply for a K3s

I find Mark's point very important.   Obtain and use a supply which is more than adequate for the service or load.  Thus a 25 amp supply feeding a radio drawing 20+ amps will need lots of cooling.   This is not the way to do it.   Get a 50 amp supply for a radio drawing 20+ amps and the fan(s)

Re: [Elecraft] Silent power supply for a K3s

I'm using an Astron SS-30M with very satisfactory results. 73 Bob, K4TAX Sent from my iPhone > On Jun 9, 2019, at 9:52 AM, Peter Dougherty wrote: > > Hi all, > I would like to find a power supply to power the K3s that is completely > silent. I've owned an Astron RS-35M, which was great until

Re: [Elecraft] K4 standing on Sherwood's RX list

Yes, yes, and yes.   One can download the Receiver Test Report and import it into an EXCEL file.   That will then allow one to sort on 1 or 2 or 3 or more different criteria. The 2 kHz Narrow Spaced number, to me, is not as important as some other numbers.   It is nice to have a radio, K3S, th

[Elecraft] P3 Noise band

I noticed when working the 6M contest today, I observed a band of noise on my P3.   It always tracks above the frequency about 20kHz at the lower edge.   The width of the band of noise is about 35 kHz.   As I tune, the band of noise stays relative to the tuned frequency, thus moving up or down

Re: [Elecraft] Deaf K3 follow up

I can't emphasize this enough.   BACKUP BACKUP BACKUP the configuration on a regular basis using the K3 Utility.    When things get screwy and weird, one has a way to step back to "when things worked". Much like the RESTORE feature on the computer. The K3 Utility makes this easy to do a

Re: [Elecraft] KX3 and the Sigmalink USB

If you look at the jumper configuration in Fig 2 & 3 of the Signalink USB documentation, you can insert the capacitor, in place of the jumper,  between the MIC pin on JP1 and the corresponding Mic Input terminal on JP1.   A 0.1 mfd 50 V disk ceramic should be very adequate.   That will block th

Re: [Elecraft] Handedness

I use PF1 to switch between front mike input, no bias, and rear mike input with bias. 73 Bob, K4TAX On 6/3/2019 1:53 PM, Rick WA6NHC wrote: On 6/3/2019 11:32 AM, Dave New, N8SBE wrote: Yes, but can you have a dynamic mic plugged into one and an electret mic plugged in the other? Yes!  Or

Re: [Elecraft] MAY Problems

OK thanks for that bit of info.   Since the KAT500 and KPA500 do not switch to 40M or 160M, I find it odd that both boxes exhibit the same symptoms.   I'd check to see that RF is actually getting to the KPA500 and KAT500 on those 2 bands.  If no RF or inadequate RF level then they won't switch.

Re: [Elecraft] KAT Problems

>From your earlier with the tuner and amp not switching, I would connect the >cable ACC direct to the amp from the radio. If the amp switched then issue is >with the tuner. If the amp doesn't switch this points to the radio. Recheck all of your CONFIG settings in the radio. Looks like a call

Re: [Elecraft] KAT Problems

I operate my KAT500 in the MANUAL mode all of the time.   To do the training, I select the ANT of choice, apply about 10 watts of RF and press TUNE on the KAT500.   Then move to the next frequency on the same band and do the same thing.  On 160M I resolve a match every 25 kHz.   On 80M I resolv

Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

the other station OFF. I'm sure there are other ways to do this but mine works for me. 73 Bob, K4TAX On 6/1/2019 11:18 AM, Nr4c wrote: The KAT500 has no clue what provides the RF when sensing the Freq. Sent from my iPhone ...nr4c. bill On Jun 1, 2019, at 11:18 AM, Bob McGraw K4TAX

Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

The KAT500 will sense the RF and apply the previously stored matching elements for the frequency. 73 Bob, K4TAX On 6/1/2019 8:37 AM, Michael Gillen via Elecraft wrote: Greetings all and thank you for a great list with lots of great information! Help me understand something on the KAT500. I

Re: [Elecraft] Problem with K3 driving old tube amp

Sounds as though ALC from the amp is causing the transceiver to step power.   One should NOT use ALC from the L-4B to the K3. The ALC circuit in the L-4B was designed for exciters which did not have precise power control.   The use of ALC to control power in this configuration is likely to caus

Re: [Elecraft] K3 PowerPole connector

I suggest using automotive primary wire, #10 AWG for power cables.   It is stranded with much finer / smaller wire than THHN and is much more flexible than THHN.    It does correctly fit the 30 amp PowerPole connectors thus no splicing is needed or as suggested. I also recommend not only corre

Re: [Elecraft] HARA ARENA RIP

Yes, I've always found hams to be "creative" in many ways. Thanks for sharing your story. 73 Bob, K4TAX On 5/29/2019 9:54 AM, Wayne Burdick wrote: Bob McGraw (K4TAX) wrote: Based on the Tour of Hara video I saw a few years back, the place is a fire trap and was filled with

Re: [Elecraft] HARA ARENA RIP

Based on the Tour of Hara video I saw a few years back, the place is a fire trap and was  filled with junk, pollution, dangerous chemicals, and garbage just to name a few.  Yes it should have been torn down years ago.   Maybe the tornado with move things in that direction and something decent f

Re: [Elecraft] VERY noisy LCD Monitor. Any Suggestions?

I know it is really aggravating but many places offer a reasonable return policy.  If they don't, I won't buy. So..l'd buy one, take it home, use it for a few days, if it is noisy or doesn't do what you wish..take it back for a refund.   Do watch for "in store credit" on some merchandis

Re: [Elecraft] Help with K3S upgrades

Glad you found the information of assistance.    I suggest a bit longer warm up than 30 minutes, but for starters, 30 minutes is OK.   I usually go for 1 hr to 2 hrs in a temperature stable environment.   But...that's just me. 73 Bob, K4TAX On 5/25/2019 3:19 PM, HB wrote: Gentlemen… Th

Re: [Elecraft] Help with K3S upgrades

Yes that is correct.but one needs to make sure the sound card calibration is correct. I prefer to use CW mode with CWT active .   Tune the radio to one of the WWV frequencies.  Thn press and release SPOT.  This will match the sidetone to the WWV carrier and adjust the radio to the corr

Re: [Elecraft] Elecraft Support

We must realize and understand the e-mail system is not 100% reliable.    At the same time, most e-mail systems do have a provision to reply to the sender that the message has arrived at the destination.   This still does not assure the message has been read.    Another feature often found is t

Re: [Elecraft] Connecting SDRPlay to P3 IF OUT, to CW Skimmer

Why not take the RX OUT of the K3 to a BNC T  and the RX IN of the K3  to the other side of the BNC T and with a BNC T  in that path, feed that to the SDR receiver.  Then on the K3 press the RX ANT button and both are fed the entire band from the same antenna and they are protected during trans

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