[Elecraft] K3 band data query

[Larry (K8UT)]

Dennis,

The K3's BCD outputs are defined by band, not frequency. You need something that tracks QRG, but the following may be serious overkill for your needs...

If you use the general purpose logger DXLabs, or the contest logger N1MM, consider a freeware Band Decoder called FreqEZ. The program receives frequency info from those loggers and allows you to to define 255 band segments that control any combination of 16 remote relay lines. The software is free, but the hardware components are not. The FreqEZ website describes a DIY solution or an Assembled and Tested solution. (DISCLAIMER: I wrote the free software, but I also sell the Assembled and Tested hardware)

www.freqez.info

If you only need a few outputs, you could probably cobble together something that uses the free software but is simpler and cheaper. Contact me if you're interested.

-larry (K8UT)

------ Original Message ------
From: "Dennis Ashworth" <dennisashworth49 at gmail.com>
To: Elecraft at mailman.qth.net
Sent: 2020-10-18 2:28:42 PM
Subject: [Elecraft] K3 band data query

>I operate a vertical antenna for 80 & 160M where the bandwidth is such that I need to switch in reactance between the phone and CW portions of each band. I currently do this manually, but am installing vacuum relays for switching remotely. Is there a way the K3, through the data port or whatever, can send a signal when migrating between traditional (or operator defined) phone and CW portions of the band?
>
>Antenna matched points on 160 are at 1825 and 1855; 80M are 3520 and 3800.
>
>I had considered sensing the K3 mode, but that’s not an acceptable solution. The 160M CW contests can often extend into the traditional phone area and FT8/WSPR often use USB mode in the CW portion.
>
>Thoughts?
>
>Dennis, K7FL
>Las Vegas, NV
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