Re: Software support Request for Full QSK BITX40

Gordon Gibby <ggibby@...>

My first ham radio transceiver was a full break in HW 16 from Heathkit.

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On Jan 20, 2018, at 13:00, Gordon Gibby <ggibby@...> wrote:

Gary, if you would produce some sort of schematics and we can tell what’s going on, I am certain that some folks here can modify code to fit with that. Allard probably can’t release it into the wild, but we could get a version going that would work specifically for such a rig.

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On Jan 20, 2018, at 11:42, Mvs Sarma <mvssarma@...> wrote:

perhaps next only to0 replicating human barain, in liter vein, Lol

MVS Sarma

On Sat, Jan 20, 2018 at 10:04 PM, Allard PE1NWL <pe1nwl@...> wrote:
Thanks Gary,

My most important development criteria is that the software shall always
work, also on a stock (non-modified) BitX40. Any hardware modifications
supported by the software shall be minor, simple, easily reproducable and,
most importantly, optional.

The modifications you did are pretty major, and I'm afraid it would be
quite a challenge to revise the code so that it supports both modified as
well as non-modified boards.

73 Allard PE1NWL

On Sat, January 20, 2018 14:42, Gary O'Neil wrote:
> Hi Allard;
> I replaced the relays to switch and purge the TX/RX supply lines, and a
> SPDT RF switch to isolate the receiver during Transmit. It all switches in
> less than a microsecond, but with all the capacitive loading it has to
> dump, it's probably moving up to somthing close to a millisecond. QSK
> speeds are not an issue. The transmitter transmits instantly, and the
> receiver recovers to full sensitivity between dits at between 40 and 50
> WPM (measured it at 48 WPM with my keyer at max speed), but I rarely
> operate at 30, and 35 is approaching my maximum copying speed.
> 72
> Gary, N3GO

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