[Elecraft] K4 output on 6m?

I have PWR set to 100, but am seeing ~70 watts on 3 different watt meters (K4, KPA1500, and HF-AUTO). Is this what I should expect, or should I go about re-calibrating Power on the K4? -- Thanks & 73 de Dave, W5SV __ Elecraft

[Elecraft] KpA1500 output

Hi all, Had a falt on amp (swr) pushed reset corrected swr and now get no output. Seams like reset not working. Any suggestions? Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] Power output problem K3

Hi Steef, all, well, intermittend or gone issues are hard to detect :-( Based on your description, it is most likely that contact issues causes the symptoms described. Or maybe a cold solder joint could cause such issues too. I am saying that with care and respect, my K3/10 is #5921 and 10y

Re: [Elecraft] Audio output routing confusion

You don't hear VFOs, you hear receivers. When the subRX is off, the only receiver you can hear is the main receiver. The main receiver's frequency is always controlled by VFO A, so with the subRX off you are always listening on the VFO A frequency (you can press and hold the REV button to swap

Re: [Elecraft] Audio output routing confusion

I think you can only hear Main Rec VFO A or VFO B. The only way to hear VFO A and VFO B at the same time is with KRX3 sub-receiver as VFO B. Sent from my iPhone ...nr4c. bill > On Jul 27, 2020, at 6:32 PM, Jim Rhodes wrote: > > You need to set the "SPKRS" on the Config menu to "1" in order

Re: [Elecraft] Audio output routing confusion

You need to set the "SPKRS" on the Config menu to "1" in order to hear them both at once. On Mon, Jul 27, 2020 at 5:27 AM Eric Rosenberg wrote: > After 6 months off the air, I find myself confused by the K3's audio > output choices. > > While I'm able to hear the Main A VFO and Sub RX VFO

[Elecraft] Audio output routing confusion

After 6 months off the air, I find myself confused by the K3's audio output choices. While I'm able to hear the Main A VFO and Sub RX VFO through my one speaker, I can't figure out how to (or if) hear both the Main RX A and B VFOs through that speaker. Is there a way to configure this, or

Re: [Elecraft] P3 Output

It’s a continuation of the IF from the radio. You can connect an SDR receiver there for instance. Sent from my iPhone ...nr4c. bill > On May 19, 2020, at 5:19 AM, "a4...@sy-edm.com" wrote: > > I see on my P3 that there is an additional BNC output, which is > “un-buffered”…. > > Is there

[Elecraft] P3 Output

I see on my P3 that there is an additional BNC output, which is “un-buffered”…. Is there any way I can use this ? What actually is in this output I/Q only - or RF More curious than anything … Regards Tim __ Elecraft mailing

Re: [Elecraft] K3 output power failure.

W3LPL and other mentioned the PA temp and sagging power supply. I didn't think to check the PA temp until later (how much later, I don't know), If I remember correctly, it was 35C. In both cases, I was operating in a contest (ARRL 160 and ARRL RTTY RU) with the RF power set to 100w Sitting in

Re: [Elecraft] K3 output power failure.

What was the PA temperature? And how are the fans set in the CONFIG menu. Bob, K4TAX Sent from my iPhone > On Jan 6, 2020, at 12:15 AM, Eric Rosenberg > wrote: > > In the middle of the ARRL 160 contest, my K3 stopped putting out any RF. No > explanation that I can think of... all of

Re: [Elecraft] K3 output power failure.

Alternatively, you might (if you feel comfortable doing so) open the unit up and inspect it for any foreign debris that may have made its way into the case, thus challenging the airflow design/volume/velocity. The PA is in its own shielded enclosure, and thus relies heavily upon the fans to

Re: [Elecraft] K3 output power failure.

Eric Rosenberg writes: Everything seemed fine until this weekend's ARRL RTTY Roundup. After being on the air for about 4 hours, once again there no was RF output Eric, Sounds like an over temperature problem. Especially if running RTTY at near full power. The high duty cycle of RTTY can

[Elecraft] K3 output power failure.

In the middle of the ARRL 160 contest, my K3 stopped putting out any RF. No explanation that I can think of... all of a sudden, ZERO watts out when the radio was keyed, either by software (N1MM+ or WSJT-X) or pressing the TUNE button. The TX LED was lit, the meter showed audio, which I could

Re: [Elecraft] KX2 output power drop

Pierre, That may be normal behavior, the power will drop to 5 watts if either low voltage occurs or if a high PA temperature condition occurs. If you are operating digital modes, I suspect that the high PA temperature is causing the drop in power. Check the BAT MIN setting in the KX2 menu.

[Elecraft] KX2 output power drop

Hi folks .. A question about the KX2: I saw this on other posts, and also experienced it in portable operations: ''The KX2 was able to pump out a full 10 watts of power for a little over one hour, then as the voltage dropped, it reduced output to 5 watts.''. So it seems to be normal, but is it

Re: [Elecraft] No output on CW with K3

He means VOX. K9ZTV > On Jul 14, 2019, at 6:20 AM, Nr4c wrote: > > Make sure BOX is ON on all bands. > > Make sure not in TEST mode on bands with no CW out. > > Sent from my iPhone > ...nr4c. bill > > >> On Jul 14, 2019, at 4:09 AM, VY1JA wrote: >> >> The YCCCN Remote OPs group

Re: [Elecraft] No output on CW with K3

Make sure BOX is ON on all bands. Make sure not in TEST mode on bands with no CW out. Sent from my iPhone ...nr4c. bill > On Jul 14, 2019, at 4:09 AM, VY1JA wrote: > > The YCCCN Remote OPs group (VY1AAA) uses the K3S at this site (VY1JA) and > reported the same problem but only on Six

Re: [Elecraft] No output on CW with K3

The YCCCN Remote OPs group (VY1AAA) uses the K3S at this site (VY1JA) and reported the same problem but only on Six meters. The K3s is working perfectly on all other bands. It has been confirmed that the CONFIG does not redirect TX output and tests on TUNE show good output on 6 and low antenna

[Elecraft] No Output from K3 on Digital Modes - SOLVED

I opened N1MM+ to check operation with RTTY in the hope that if it worked, its settings may be a clue to what was wrong for the other soundcard-controlled digital modes. I initially noticed the RTTY window would populate what I sent but still no power out. On a hunch I pushed the XMIT (PTT)

Re: [Elecraft] Line output

On 23/05/2019 11:55, G3YHM via Elecraft wrote: > For some reason my K3 has decided to change the level of the Line out when I > adjust the AF Gain control. Are my fingers in the menu to blame? How can I > return it to normal? Go to CONFIG:LIN OUT and if it says "=PHONES" then tap 1 to return

[Elecraft] Line output

For some reason my K3 has decided to change the level of the Line out when I adjust the AF Gain control. Are my fingers in the menu to blame? How can I return it to normal? Regards Sent from my iPad __ Elecraft mailing list

Re: [Elecraft] IF Output ?

I use the opportunity to follow up on this thread. The IF output of the K3 and K3S is centered on 8.215 MHz. But there is also a second IF at 12 kHz with no output. I wonder if anyone has made an output for the I- and Q- channels at 12 kHz. It looks fairly simple to find judging from the

Re: [Elecraft] IF Output ?

Eric, Tnx for quick reply & info.Can't blame my problem on that :-)Bob K4RLC From: Eric Swartz WA6HHQ - Elecraft To: Bob Conder Cc: Elecraft list Sent: Wednesday, April 17, 2019 10:55 PM Subject: Re: [Elecraft] IF Output ? Hi Bob, The K3 and K3S IF output is on all the time. 

Re: [Elecraft] IF Output ?

Hi Bob, The K3 and K3S IF output is on all the time. 73, Eric elecraft.com --- Sent from my iPhone 6S > On Apr 17, 2019, at 7:23 PM, Bob Conder via Elecraft > wrote: > > Is there a software setting in the Config menu to activate the IF Output on > the KXV3?Or, is it always "on" &

[Elecraft] IF Output ?

Is there a software setting in the Config menu to activate the IF Output on the KXV3?Or, is it always "on" & generating a signal?TIA,Bob K4RLC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Walter. While I suspect that voltage requirements for the KX3 are similar to those of the KX2, its a KX2 as the device in question. And I agree with Don. The underlying issue here is why is the power supply voltage so low? The KX2 (or KX3) shouldn’t draw more than around three Amps under

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Tommy, That is too much voltage drop. Check all your power connections to be sure they are tight. If the power supply terminals rotate even a little bit, open the power supply and tighten the terminals securely. Since the KX2 power control tries to maintain the set power, if the voltage

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Based on the KX3 specifications, it is designed to run at lower power for full-carrier modes. From the transmitter specifications on page 54 of the KX3 Owner’s Manual: "5 W or less recommended for high-duty-cycle modes (FM, AM, DATA). Power will automatically be reduced if PA temperature or

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Based on a presentation by Eric at the West Valley Amateur Radio Association, Elecraft tends to build their equipment to run at full advertised power with digital modes. Their model is a RTTY contester calling CQ with 60% to 70% of the time transmitting. He indicated that the KPA1500 would run

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Don't Elecraft recommend using lower power for high duty digital modes? (Though FT8 us 15s bursts so not as high duty as some). - Richard On Mon, 18 Mar 2019 at 18:46, Tommy wrote: >Ahhh, O.K., with my 13.2v Astron it's showing 10.3 - 10.8. I guess > for now with this power supply I'll

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

  Ahhh, O.K., with my 13.2v Astron it's showing 10.3 - 10.8. I guess for now with this power supply I'll have to settle for 5 watts. Thank you for the quick reply. Tom - KB2SMS On 3/18/19 2:36 PM, Walter Underwood wrote: Set the display to show the power supply voltage and watch it while

Re: [Elecraft] Power output keeps folding back to 5 watts on my KX2

Set the display to show the power supply voltage and watch it while you transmit. The transmitter requires a voltage over 11 V for more than 5 W. If the voltage is dropping below 11 V, that is the problem. This in the specifications section of the KX3 manual. wunder K6WRU Walter Underwood

[Elecraft] Power output keeps folding back to 5 watts on my KX2

   Hi folks, I'm running FT8 with a KX2 powered by a power supply. The rig keeps folding back from 10-12 watts to 5 every time and it's barely even warm.  I'll set it to 12W for instance, it'll transmit fine at that level but when done cut back to 5w. I don't transmit often enough for it

Re: [Elecraft] K3s Output on 6M

From page 9 of the manual: "K3S/100 typ.  Suggested max from 51 - 51 MHz, 85 W,  52 - 54 MHz 70 W. "    There are other specs related to K3S/10 and transverter outputs. Looks like 100 watts is a good number from 50 - 51 MHz.   I see that on my radio and I've not checked power above 51 MHz.  

Re: [Elecraft] K3s Output on 6M

-Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bob McGraw K4TAX Sent: Tuesday, July 10, 2018 22:50 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3s Output on 6M Have you run a Transmitter Gain Calibration from the K3 Utility Application? If you do, be sure to use

Re: [Elecraft] K3s Output on 6M

Did you check the specs? I don’t think it is supposed to put out full 110 Watts on 10 or 6 meters. Sent from my iPhone ...nr4c. bill > On Jul 10, 2018, at 8:03 PM, Gary Smith wrote: > > What is the expected output on 6 meters? > > The K3 shows 110W > The P3 watt meter says 73.1W > The

Re: [Elecraft] K3s Output on 6M

Have you run a Transmitter Gain Calibration from the K3 Utility Application?  If you do, be sure to use a good dummy load connected direct to the radio with a known good short coax jumper. The fact you have 3 different power indicating devices which all indicate different power values, I'd

Re: [Elecraft] K3s Output on 6M

Thanks Fred, Guess I have some issues with my K3s then. I think it's past warranty at this point. I'll break out the K3 and try to get it working in place of the K3s, send the K3s back for repair and figure how to get WSJT going with the K3 while 6 is still open. 73, Gary KA1J > My K3S

[Elecraft] K3s Output on 6M

What is the expected output on 6 meters? The K3 shows 110W The P3 watt meter says 73.1W The LP-100A says 60.1W When I use the internal tuner it never breaks into the higher power range, it only outputs at 7 watts tops. On all the lower bands it puts out 100 reliably. Thanks & 73, Gary

Re: [Elecraft] FT8 output power KX2/KX3

FWIW ... with one of the KX3 aftermarket heat sinks, and after I performed the VFO Temperature Compensation routine, I was regularly doing 10W on the rig with JT65 with its 42 sec Tx cycle.   The heatsink did get warm enough that it worried me, and I added a salvaged 12v fan from an old

Re: [Elecraft] FT8 output power KX2/KX3

The KX3 specifications in the manual (page 54) say 5 W for digital modes. I expect the KX2 specs also list a power level. "Supply voltage of 11 V or higher (on key-down) required for settings above 5 W. 5 W or less recommended for high-duty-cycle modes (FM, AM, DATA). Power will automatically be

Re: [Elecraft] FT8 output power KX2/KX3

Barry, You should be able to tolerate 60 degC measured at the PA transistor tabs for short periods. You can read the PA temperature in the Alternate VFO B display. 73, Don W3FPR On 10/26/2017 9:05 AM, Barry N1EU wrote: Thanks Tom and Don for the responses. I'll try a few 15sec FT8 xmit

Re: [Elecraft] FT8 output power KX2/KX3

Thanks Tom and Don for the responses. I'll try a few 15sec FT8 xmit cycles at 50% (7.5W) into a dummy load while monitoring PA temp. Any guidance on what the upper safe limit is for PA temp? Thanks & 73, Barry N1EU On Thu, Oct 26, 2017 at 8:34 AM, Don Wilhelm wrote: >

Re: [Elecraft] FT8 output power KX2/KX3

Barry, The normal recommendation is for 50% of the maximum power. The KX3 and the KX2 will roll back power for protection if the PA transistors get too hot. I know the KX3 rolls back to 5 watts, but I am not sure about the level for the KX2. 73, Don W3FPR On 10/26/2017 7:50 AM, Barry N1EU

Re: [Elecraft] FT8 output power KX2/KX3

  I use 5-10 watts without any issues. 3-4 bars on the ALC. 73! Tom - KB2SMS KX2 #01927 On 10/26/2017 07:50 AM, Barry N1EU wrote: What is the recommended max power output setting for the KX2 and for the KX3 for normal FT8 use without after-market heatsink? Thanks & 73, Barry N1EU

[Elecraft] FT8 output power KX2/KX3

What is the recommended max power output setting for the KX2 and for the KX3 for normal FT8 use without after-market heatsink? Thanks & 73, Barry N1EU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] kxv3 output question

Actually looking at a different brand of transferred for satellite and terrestrial work both. The transferred list says 28-32 for the XV432 was wondering if it would go any higher in freq. Jim Rhodes On Sep 11, 2017 2:20 PM, "Don Wilhelm" wrote: > Jim, > > The power

Re: [Elecraft] kxv3 output question

Jim, The power level can be set up to 120mW. The frequency range is about 2MHz. I recall that initially the internal 2 meter transceiver design was to be for a 50MHz IF, but was later changed to a 28MHz IF which required switching between 2 crystals to cover the entire 2 meter band. That is

[Elecraft] kxv3 output question

Can someone tell me the output range of freq for 10 meter if and power output level. Using the "a" version. Jim Rhodes __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

[Elecraft] Slow output/no output on KPA500 after changing drive from K3

Recently I've begun having a very annoying power problem with my K3/KPA500 combo on 40M. I recently built a 7-foot diameter STL that I am using as my sole antenna for that band. The problem started after I had some hard faults at QRO; I gradually increased the drive to full output but due to

[Elecraft] KREF3 Output Level Mod

All: Since I'm digging into the K3 to add some options, I have decided to make the output level mods suggested for the KREF3 board when used with the KSYN3A synth. Sub-rx and internal transverter. Just wondering why the R12 (main rx ref feed) swap from 150 ohms to 51 ohms and not the R10 sub

Re: [Elecraft] No Output from K3S on WSJT MSK144

] On Behalf Of stengrevics > Sent: Thursday, February 9, 2017 7:10 AM > To: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net> > Subject: [Elecraft] No Output from K3S on WSJT MSK144 > > Was working fine, but today I have no output from the K3S on WSJT MSK144. If >

Re: [Elecraft] No Output from K3S on WSJT MSK144

Don, No, nothing in the LINE IN jack. The audio setting on WSJT did also get changed. I put it back on CODEC. It is working now. I had to set CONFIG > MIC SEL = LINE IN, and increase the power slider on the WSJT screen. Thanks, John WA1EAZ > On Feb 9, 2017, at 12:53 PM, Don Wilhelm

Re: [Elecraft] No Output from K3S on WSJT MSK144

, 2017 7:10 AM To: elecraft@mailman.qth.net Subject: [Elecraft] No Output from K3S on WSJT MSK144 Was working fine, but today I have no output from the K3S on WSJT MSK144. If I select "Tune" on the WSJT screen and try to adjust the Mic gain control, I can't get any reading on the ALC

Re: [Elecraft] No Output from K3S on WSJT MSK144

John, Is there any chance you plugged something into the K3S LINE IN jack? Doing so turns off the CODEC audio out and the audio is taken from the LINE IN jack only. If nothing in the LINE IN jack, check the levels for the CODEC in your computer. 73, Don W3FPR On 2/9/2017 10:10 AM,

Re: [Elecraft] No Output from K3S on WSJT MSK144

Check the "Master" level for "Speakers (USB Audio CODEC)" in Windows' Volume Control. If things got changed, perhaps your Windows Sound Settings also got changed. 73, ... Joe, W4TV On 2/9/2017 10:35 AM, John Stengrevics wrote: Joe, Thanks. The MIC SEL did get changed somehow. So, I

[Elecraft] No Output from K3S on WSJT MSK144

Was working fine, but today I have no output from the K3S on WSJT MSK144. If I select "Tune" on the WSJT screen and try to adjust the Mic gain control, I can't get any reading on the ALC meter. Any suggestions would be appreciated. John WA1EAZ -- View this message in context:

Re: [Elecraft] Audio Output Impedance of the KX3

Jim and All, Thanks much for the explanation. Makes a lot more sense now. Not sure how I missed your past comments that covered that. I also got several other responses which were most helpful, and I appreciate them as well. It sure is nice to ask a question and get good answers!! Hi.

Re: [Elecraft] Audio Output Impedance of the KX3

impedance issues. Mel, K6KBE From: Don Wilhelm <donw...@embarqmail.com> To: w7aqk <w7...@cox.net>; Elecraft Reflector <elecraft@mailman.qth.net> Sent: Monday, January 23, 2017 1:35 PM Subject: Re: [Elecraft] Audio Output Impedance of the KX3 David, Let me try to r

Re: [Elecraft] Audio Output Impedance of the KX3

David, Let me try to respond and perhaps Jim will chime in a well. Modern audio amplifier output stages are very low output impedance devices. As such, they can produce as much power as the device connected will allow. In a practical design of course there is a limit to how much current the

Re: [Elecraft] Audio Output Impedance of the KX3

On Mon,1/23/2017 12:54 PM, Jim Brown wrote: The impedance of mics is defined as 5X their minimum load impedance. Correction -- one-fifth of their minimum load impedance. For example, a 250 ohm mic should drive an input impedance no lower than 1.25K. Most pro mics are in the range of 150-250

Re: [Elecraft] Audio Output Impedance of the KX3

Hi Dave, I've written about this many times, but here goes again. :) Your choice of the words "designed impedance" is a good one. Audio output stages have an internal impedance MUCH lower than the loads they are designed to drive. For example, a typical speaker output stage is designed to

Re: [Elecraft] Audio Output Impedance of the KX3

Jim, Maybe you could expand on that somewhat as I'm still confused a bit. Perhaps I'm not understanding what I hear, or why, but it almost always seems that when speakers (or headphones) are not closely matched to the designed impedance I notice some deterioration in output. Some mismatch

Re: [Elecraft] Audio Output Impedance of the KX3

I use from day one headset insten with mic works very will >From my DL750 Digicel On Jan 23, 2017 2:35 PM, a...@sbcglobal.net wrote: A good question? See you got specific answer for K3/K3S but not KX3. Any direct answers for KX3, rather than different headsets? I would go for earbuds for

Re: [Elecraft] Audio Output Impedance of the KX3

A good question?   See you got specific answer for K3/K3S but not KX3.   Any direct answers for KX3, rather than different headsets?   I would go for earbuds for lightest weight but would like high efficiency type with KX3.    Anyone found a good efficient set of earbuds with the KX3?   73,

Re: [Elecraft] Audio Output Impedance of the KX3

I think it is very low on practically all of today's radios and it doesn't matter, the output stage will drive anything. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 1/23/2017 9:00 AM, Joe W2KJ wrote: Howdy Gang: Checked the KX3 manual but was unable to find the audio output

Re: [Elecraft] Audio Output Impedance of the KX3

For the speaker output, the K3 and K3S are optimized for 4 ohms. The SP3 is a 4 ohm speaker. 8 Ohm speakers work fine, but a a slightly lower audio output for the same volume control position. Eric /elecraft.com/ On 1/23/2017 9:00 AM, Joe W2KJ wrote: Howdy Gang: Checked the KX3 manual but

Re: [Elecraft] Audio Output Impedance of the KX3

On Mon,1/23/2017 9:22 AM, Walter Underwood wrote: For portable operation, I use Apple EarPods. Those are 45 Ohms. Don't worry about impedance of headphones. There is no need to match impedances in audio circuits. 73, Jim K9YC __

Re: [Elecraft] Audio Output Impedance of the KX3

For portable operation, I use Apple EarPods. Those are 45 Ohms. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 23, 2017, at 9:07 AM, Walter Underwood wrote: > > I use Yamaha CM500 headphones and their specs say 120 Ohms. They work

Re: [Elecraft] Audio Output Impedance of the KX3

I use Yamaha CM500 headphones and their specs say 120 Ohms. They work fine. http://usa.yamaha.com/products/music-production/accessories/headphones/cm500/ wunder K6WRU Walter Underwood CM87wj

[Elecraft] Audio Output Impedance of the KX3

Howdy Gang: Checked the KX3 manual but was unable to find the audio output impedance of the KX3, i.e., what impedance headphones/speaker should I be using on the rig? I’m looking to buy a lightweight headset for portable ops and want to know what impedance I should be looking for. Many thanks

Re: [Elecraft] No output on K3

On 1/14/2017 11:30 AM, Bruce Miller wrote: Thank you to both Ross and Don for your suggestions. It looks like Don had the right diagnosis—by turning the Windows and the MicroKeyer drive levels up to about 75%, and then restarting everything, I started getting power out on all digital modes. I

Re: [Elecraft] No output on K3

Bruce, Check the mic element in that ProSet - the type is normally printed where the microphone boom attaches to the headphones. If it is an "iC" type, you need to turn bias on. If there is a capacitor in series with the AF line in the MicroKeyer, then setting bias on in the K3 will not be

Re: [Elecraft] No output on K3

Thank you to both Ross and Don for your suggestions. It looks like Don had the right diagnosis—by turning the Windows and the MicroKeyer drive levels up to about 75%, and then restarting everything, I started getting power out on all digital modes. I then adjusted the MIC Gain as Don suggested

Re: [Elecraft] No output on K3

Bruce, The most probable answer is that you are not driving sufficient audio into the K3. You must have 4 bars solid on the K3 ALC meter with the 5th bar flashing - this is the NO ALC point for the K3, ignore the internet advice which applies to non-Elecraft transceivers. The fact that you

[Elecraft] No output on K3

I’ve been working in vain over the past few days to get my K3 up and running digital modes (other than CW). Several years ago I had things working with a Navigator interface and my 756 Pro II, but it got fried by a lightening strike and I’m just now trying to get things working again. Here’s

Re: [Elecraft] K3 output power falls

alf of K9SW > <k...@comcast.net> > Sent: Wednesday, November 9, 2016 11:49 PM > To: Elecraft Elecraft > Subject: [Elecraft] K3 output power falls > > Maximum power output on my K3 dropped to 12 watts, for no discernible reason. > Any handy hints about what might

Re: [Elecraft] K3 output power falls

To: Elecraft Elecraft Subject: [Elecraft] K3 output power falls Maximum power output on my K3 dropped to 12 watts, for no discernible reason. Any handy hints about what might cause this? I haven't yet taken it apart to check voltages

[Elecraft] K3 output power falls

Maximum power output on my K3 dropped to 12 watts, for no discernible reason. Any handy hints about what might cause this? I haven’t yet taken it apart to check voltages, etc. Dave __ Elecraft mailing list Home:

Re: [Elecraft] Power output per mode?

Fred OM, Don't have the KPA500, so that's moot. I agree that one problem is the lack of any indication of the power which will be produced. The only way I know of is to rotate the "power" knob - THEN the power indication shows, but not otherwise. Guess nothing is perfect, is it? George,

Re: [Elecraft] Power output per mode?

Well, technically it is saved per band per KPA500 state, if you have one. I'm pretty sure it isn't also saved per mode. I've never been at ease with memory functions that simply save the last state without leaving a message somewhere on the display what the current saved state is. When the

[Elecraft] Power output per mode?

I suspect that most of us like to reduce our power output on digital modes, so the continuous carrier doesn't overheat something. At present (as far as I can figure out) the power output setting is saved per band but not per mode, so that changing from CW to digital on the same band requires

Re: [Elecraft] KX3 Output power rating

The latest firmware is required; it will allow you to use up to 15 W on 80-20 m (10 W elsewhere). The upgraded heatsink is optional. On my lab KX3 I can put out 15 watts for several minutes before hitting the temperature limit, at which power is reduced by firmware. 73, Wayne N6KR On May

Re: [Elecraft] KX3 Output power rating

You really worried about 1.67 dB? At 10:16 AM 5/27/2016, Alan Geller via Elecraft wrote: The KX3 is now being positioned as the 15 watt big brother to the smaller KX2 “up to 10 watts” version. The upper limit on my KX3 power adjustment seems to have always been around 10.2 watts. How

[Elecraft] KX3 Output power rating

The KX3 is now being positioned as the 15 watt big brother to the smaller KX2 “up to 10 watts” version. The upper limit on my KX3 power adjustment seems to have always been around 10.2 watts. How does one safely achieve this 15 watt performance? Does it require the new/upgrade heatsink plus a

Re: [Elecraft] K3 output power spikes

On Tue,3/1/2016 12:54 PM, Bill Frantz wrote: I have not noticed any RF noise on receive when I put it into "always on" mode. Hi Bill, This is quite interesting to me. I run SO2R, so I would be concerned about noise in the second radio while transmitting on the first. Do you have a way to

Re: [Elecraft] K3 output power spikes

FWIW, I power my barefoot K3 with batteries and a solar charger. After our club county expedition for the California QSO Party (CQP) last year, I had a new appreciation for the way low power supply voltage could make a clean transmitter dirty. To address this problem at home, I got a N8XJK

Re: [Elecraft] K3 output power spikes

> From: "David via Elecraft" <elecraft@mailman.qth.net> > To: elecraft@mailman.qth.net > Sent: 3/1/2016 5:40:46 AM > Subject: Re: [Elecraft] K3 output power spikes > >> My K3 s/n 4487 has exhibited similar behaviour since I built it in 2010. >> Des

Re: [Elecraft] K3 output power spikes

For what it's worth, I've found over the years that battery power is less innocent than you'd think when powering electronics. Especially on a tired or cheap battery with a high internal resistance - those can drop a surprising amount of voltage under load with unexpected timing, etc. even when

[Elecraft] K3 output power spikes

Power supply stability. Built cheep, get worse with time, insufficient heat dissipation due to endless complaints about fan noise, cut corners on components, too small wire to rig, yada, yada, ad nauseum. Power supply issues can cause rig overheating, spikes, slow power build up, unstable power

Re: [Elecraft] K3 output power spikes

I thought that one of the features of the K3/K3s was that it was able to run, and run well, off of batteries. These power spikes makes it sound like that is not the case? Or am I missing something? Batteries start out at 12.6v and go down from there. The K3/K3s needs to run well down to

Re: [Elecraft] K3 output power spikes

Bill, Is there any way that you can increase the power supply voltage to 13.0 volts or more during transmit? If so, that should help. Most of my experience with power control is with the K2 which starts out at lower than the requested power after a band change or a change in power level, but

Re: [Elecraft] K3 output power spikes

Not to worry, my K3S does it too :-( On Mar 1, 2016, at 8:12 AM, Bill Hammond via Elecraft wrote: > Hi John, > My power dances all over the place (my serial number is 00069). Just had a > quick QSO with the KPA500 indicating 560 watts at the beginning and then >

Re: [Elecraft] K3 output power spikes

, thanks for posting this David. Jim - W0EB Park City, KS -- Original Message -- From: "David via Elecraft" <elecraft@mailman.qth.net> To: elecraft@mailman.qth.net Sent: 3/1/2016 5:40:46 AM Subject: Re: [Elecraft] K3 output power spikes My K3 s/n 4487 has exhibited similar b

Re: [Elecraft] K3 output power spikes

Hi John, My power dances all over the place (my serial number is 00069). Just had a quick QSO with the KPA500 indicating 560 watts at the beginning and then going down to 480 at the end. That is typical. My 12 volt supply drops to 12.2 on transmit, 13.3 on receive. I have a long 12 volt

Re: [Elecraft] K3 output power spikes

I've noticed that the first time I TX with my KPA500 it will fault. Seems to settle down after that. May also spoke after band change. Sent from my iPhone ...nr4c. bill > On Mar 1, 2016, at 12:23 AM, Vic Rosenthal wrote: > > Hi john, > I think I've seen this myself. I

Re: [Elecraft] K3 output power spikes

My K3 s/n 4487 has exhibited similar behaviour since I built it in 2010. Despite calls to Elecraft Support no solution was found despite Gary talking me through various items until a month or so ago when the spike was causing problems with my amp on 24 Mhz. It was mentioned that the K3 must see

Re: [Elecraft] K3 output power spikes

Hi john, I think I've seen this myself. I would redo the power calibration with the K3 utility and a good dummy load. I'm interested in hearing people's responses to your question. Vic 4X6GP > On 29 Feb 2016, at 10:24 PM, John K1JD wrote: > > Hi All, > My K3 SN #071 was

[Elecraft] K3 output power spikes

Hi All, My K3 SN #071 was purchased new November 2007. It’s had a few mods/upgrades along the way and its firmware is current. Last Field Day 2015 at W5YA, the K3’s LPA failed after a close lightning strike. I was able to successfully repair the LPA replacing both discrete and SMD components.

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