Re: [Elecraft] Antenna or KAT500/KPA500 Problem

It is possible that the ferrites are heating. If that is the case, you could test it by transmitting a steady carrier for a minute while watching the SWR. If it’s heating, there should be a gradual rise. Twin lead will change characteristics significantly when it gets wet. So will ladder line,

Re: [Elecraft] Antenna or KAT500/KPA500 Problem

On 8/6/2019 7:00 PM, Mike Lichtman via Elecraft wrote: All thoughts are appreciated. The antenna itself has worked fine for me on all bands (80 thru 10) You should buy yourself a copy of the ARRL Antenna Book and learn about how to build your own antennas. That tube contains a lot of

[Elecraft] Antenna or KAT500/KPA500 Problem

Every so often at random after I have been on SSB for a while ( 80m with about 450w and a 1.1 to 1 SWR) my tuner jumps to retune or the amp faults and switches to standby. I am using a Van Gorden full size (102’) G5RV as an inverted vee. The 31’ matching section is 300 ohm twin lead and,

[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] AX1 Loaded Whip Antenna - Elevation and Counterpoise?

Me, Too! 73, Bill K9YEQ https://wrj-tech.com/ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of J Chester Sent: Tuesday, August 6, 2019 1:39 AM To: David Thompson Cc: elecraft@mailman.qth.net; MaverickNH Subject: Re: [Elecraft] AX1 Loaded Whip Antenna -

[Elecraft] KX3 and JS8CALL

I would like to use JS8CALL on my Raspberry Pi 3B+ , so do I need to use my SignaLink as well?  Has anyone on this group used a Pi3 with JS8CALL connected to their KX3? Getting the KX3 connected to the Pi seems problematic; I have all the connectors from Elecraft, the program is loaded on the

[Elecraft] K3/P3 package reduced or buy individually

Buy the complete package or email me if you would like to purchase an individual item or items from the list. K3/100-F1 K3 100W Xcvr. (Factory assembled) Serial #3746 KAT3-F 1 K3 ATU KXV3A1 K3 RX Ant, IF Out & Xvrtr Int KRX3 1 K3 2nd RX KFL3A-400 1

[Elecraft] WTB Remote TX sensor 1.8-54 MHZ for W2 wattmeter

This is probably a longshot. I am looking for a remote directional coupler sensor 1.8-54 MHZ for the W2 wattmeter. Either 200W or 2kW. If you have one you want to sell please let me know. Thanks Dave N1IX __ Elecraft mailing

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

Yes, David, Probably early September Joe > On 6 Aug 2019, at 00:03, David Thompson wrote: > > Joe… > > Will you have reprints available? I would like to see a copy of the article. > > Thanks! > > David Thompson, AG7TX > Jack of All Trades > Master of None > dbthomp...@me.com > > > > >>