Re: [Elecraft] What minimum temperature should the K station be kept at during a hard freeze

Doug, You didn’t specify which “K” radio you were inquiring about. My K4D manual page 45 says: 0 C to 50 C or 32 F to 122 F. The K3s manual specifics 0-50 C for frequency stability. The K2 manual does not mention operating temperatures. The KX3 manual does not specify. I checked the non

Re: [Elecraft] T1 not tuning

Hi Fred, when you operate bypass do you hear a relay click (K8)? If so the MCU is working and you eliminate a good bit of circuitry, Have you read this? There is a schematic on page 12. https://ftp.elecraft.com/T1/Manuals%20Downloads/E740079%20T1%20owners%20man%20rev%20B.pdf

Re: [Elecraft] TX Gain calibration fails

Hi Joachim , How are you adjusting the power in each of the three power settings. Do you have the coax and dummy load connected directly to the K3? Trade out the short jumper to the dummy load to assure yourself it is good. After that, I would measure power with an external calibrated wattmet

Re: [Elecraft] Changing K1 sidetone frequency

>From here: >https://ftp.elecraft.com/K1/Manuals%20Downloads/E740016%20K1%20manual%20rev%20J.pdf Sidetone pitch 400-800 Hz in 10 Hz steps 73, Bill-AK5X QSK Delay and Sidetone: The QSK delay is set with the T - R menu entry. Sidetone volume and pitch are set using the S T L and S T P menu entri

Re: [Elecraft] A or B?

The model CMOS-4 is still available just two less memories: https://www.hamsupply.com/cmos-4-keyer/ 73, Bill-AK5X > On Jul 21, 2021, at 9:01 AM, jerry wrote: > > On 2021-07-21 06:26, Al Lorona wrote: >> The Logikey keyer by Idiom Press > > Sounds lik

Re: [Elecraft] K3 with KSYN3A 100Hz spurious

Hi Dave, Still have those old synthesizers laying around. I would start there and putt the old ones back in. That will also force you to disconnect and reconnect those infamous TMP coax connections. It is a place to start while Elecraft works you through the cue. 73, Bill-AK5X, K3 SN 00069

Re: [Elecraft] Arecibo antenna collapses

Indeed they do: https://www.nature.com/articles/d41586-019-02790-3 73, Bill-AK5X > On Dec 2, 2020, at 11:56 AM, Fred Jensen wrote: > > "A billion here, a billion there ... pretty soon you're talking about real > money." > > Everett M. Dirk

Re: [Elecraft] Reliable PL-259 UHF connector engagement

Perhaps looking something like this one (BNC)? https://www.monoprice.com/product?p_id=6510 73, Bill-AK5X > On Jul 29, 2020, at 2:02 PM, George Danner wrote: > > Andy, > > In the 60s & 70s, we had a screwdriver like tool for removing and insertin

Re: [Elecraft] KPA500 max heat sink temp?

Hi Eric, My manual (revision B, 2011) that came with my SN 0149 says 90C maximum, page14 in the specifications. It also says drive power 30-40 watts for 500 out and I have never beed even close to that, usually 22-26 watts drive. FYI, Bill-AK5X > On Jul 8, 2020, at 6:00 AM, Eric Norris wro

Re: [Elecraft] KPA-500 clicking as the temperature changes

I have KPA500 SN 00149. Mine is a kit and it hasn’t had a lid off since I finished building it July 2, 2011, almost 9 years ago,. Like the rest, I heard clicking for a while and all of a sudden it stopped or I just no longer hear it. I think it stopped. Whatever was clicking found its happy

Re: [Elecraft] stripping insulation from enamel wires

I have suffered through the painful process of removing the enamel on the wire on just about all of the Elecraft kits..K2, K1, KX1, tuner’s etc.. I think I have made them all...just reading the comments here I was wondering why I never bought a solder pot as recommended...I checked out eBay and