Re: [Elecraft] Upgrading K3 s/n 11xx to operate on the 472KHz

2017-10-02 Thread Don Wilhelm
Jack, You will need the new synthesizer - two if you have the KRX3. You will also need the KBPF3A. If you already have a KBPF3, there is an upgrade kit that you can install - the KBPF3MDKT (see K3 Parts and Mod Kits). You will also need the KXV3 (or KXV3A or KXV3B) option in your K3 because t

Re: [Elecraft] KX3: slow build to full power on 15 meters only

2017-10-02 Thread Christopher Hoover
Don's procedure in his doc works great. But there is a gotcha that I don't recall being covered. The ALC meter algorithim "beats" with certain tuning tones and when that happens, it makes the ALC meter ramp up and down in a fast oscillation. This has been discussed on this list relatively recen

Re: [Elecraft] OT: LED Light Bulbs

2017-10-02 Thread Chip Stratton
On Sun, Oct 1, 2017 at 5:30 PM, Lynn W. Taylor, WB6UUT < kx...@coldrockshotbrooms.com> wrote: > Just saw an ad for Genie LED Bulbs. > > Apparently some LED light bulbs make enough noise that they desense the > garage door receiver. > > These bulbs are specifically low-RFI. > > I have no more infor

Re: [Elecraft] OT: LED Light Bulbs

2017-10-02 Thread Chip Stratton
How ironic. My two Genie garage door openers sit there and generate a huge amount of buzz-saw hash on HF as long as they have power. I have to essentially unplug them to use the radio, and my horizontal loop is 100 feet away from them. Chip AE5KA On Sun, Oct 1, 2017 at 5:30 PM, Lynn W. Taylor, WB

[Elecraft] For Sale: One excellent condition, late serial number K3

2017-10-02 Thread Matt NQ6N
Hello, Because most of my operation has been remote lately, I am selling one of my two K3 transceivers. Both are in superb condition. I only need one and will be keeping the one that does not sell. If interested, please contact me off list and I will send you the specs for both. The serial numb

[Elecraft] FT8 problems on 17 & 30 M

2017-10-02 Thread Mike Baird
Perhaps this is a software problem, but I thought I'd start here. Using K3 (s/n 68xx), SignalLink USB and WSJT-X. Everything works fine on FT8 on all bands but 17 & 30. I can decode on those bands, but there is no xmit. The rig keys OK and goes into xmit but there is no output. Radio performs

Re: [Elecraft] FT8 problems on 17 & 30 M

2017-10-02 Thread Bob N3MNT
If split is on, make sure software did not set tx freq out of band. -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.

Re: [Elecraft] Upgrading K3 s/n 11xx to operate on the 472KHz

2017-10-02 Thread Edward R Cole
I used my K3 on 495-502 KHz as an experimental station. I got 1mw output at the XVT Tx output jack running the TEST mode. For amplifier, I bought a surplus Southern Avionics NDB (aircraft Non Directional Beacon) transmitter. It is a xtal controlled oscillator amplified to 100w into 50-ohm lo

Re: [Elecraft] FT8 problems on 17 & 30 M

2017-10-02 Thread Nr4c
How much SSB do you do on 30 meters? I'd start by re-checking the Data/submode on the two bands. Sent from my iPhone ...nr4c. bill > On Oct 2, 2017, at 6:03 PM, Mike Baird wrote: > > Perhaps this is a software problem, but I thought I'd start here. Using K3 > (s/n 68xx), SignalLink USB and

Re: [Elecraft] FT8 problems on 17 & 30 M

2017-10-02 Thread Joseph Reed
Interesting question. But I doubt W0RSR operates SSB on 30 :) Or I hope he does not. A better question would be what software are you running, and on which operating system, e.g., Windows, MacOS or linux? Since WSJT-X is the only software package I know that supports FT-8 I doubt it is a rad

[Elecraft] K2 KPA100 SWR Bridge Readings Way Too High

2017-10-02 Thread Dick Lamb
The SWR bridge on my K2/KPA100 had been working perfectly for years, but I apparently blew something while making comparison measurements with a friend's K2 I was trying to fix. Now the K2 panel LCD SWR indicator reads around 5:1 for a near-perfect dummy load. Adjusting C1 makes almost no differen

Re: [Elecraft] K2 KPA100 SWR Bridge Readings Way Too High

2017-10-02 Thread Don Wilhelm
Dick, Make certain you have the diodes D16 and D17 mounted the right way around. Replace the coax jumper to the dummy load - measure your dummy load with your ohmmeter to be certain it is a good 50 ohm dummy load (yes, dummy loads can fail). Then balance the wattmeter. Easiest way is to pow