--
73 Chris Cox, N0UK, G4JEC
chr...@chris.org
On Tue, 22 Jan 2019, K9MA wrote:
> transmitter before every contact. Spotting required turning one of the rotary
> switches on the transmitter, a cumbersome process. Imagine doing that a couple
> thousand times in a weekend. At some point, we came up with the idea to hook a
> foot switch up to do the spotting, which made it much easier, and save a lot
> of wear and tear on the rotary switch, not to mention the operator's wrist.
>
> In those days, 40-50 years ago, transceivers just didn't work well on CW, so
> almost all CW operators used separate transmitters and receivers. Some, like
> the Drake line, could transceive, but had the same problem on CW. Transceivers
> didn't account for the BFO offset, and there was no RIT or XIT. If you called
> another station in transceive mode, you would be 700 Hz or so off frequency.
> Two transceivers pretty much couldn't work each other at all. Sometime while I
> was inactive in the late 70's and 80's, that problem was solved, and we no
> longer had to spot before every contact. I think that solution had to wait for
> frequency synthesis, as it otherwise would have required additional
> (expensive) crystals. Does anyone know of a non-synthesized transceiver that
> didn't have the CW offset problem?
>
> 73,
> Scott K9MA
>
>
> On 1/21/2019 23:09, Wayne Burdick wrote:
> > Elecraft's auto-spot and CWT features -- available on the K3/K3S/KX2/KX3 --
> > are very useful tools for CW operators, especially those not experienced in
> > pitch-matching. Here's a bit of history on where these features came from
> > and how they work.
>
>
> --
> Scott K9MA
>
> k...@sdellington.us
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to chr...@chris.org
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
