[ARC5] BC-453 too drifty for WSPR?

[Kenneth G. Gordon]

On 24 Jan 2016 at 23:30, J Mcvey via ARC5 wrote:

> 
> I decided to tidy up my line voltage transformer speaker inter and put in a nice
> bud box with jacks for I/O. Since I was going that far, I decided to include an
> adjustable low level out to plug into the computer and WSJT-X. It didn't work.
> The waterfalls had a slight tilt to them. It's a shame, because I think it hears
> pretty well.

Hmmm...well, I find that a bit odd: I've used a BC-453 with Spectran software 
for years and never had that problem.

If drift is a problem for your setup, regulating the filament voltage makes a 
big difference as long as your HV is stable.

Also, HV need not be more than about 180 VDC. I use a VR-105 and a 
VR-75 in series.

Ken W7EKB




Kenneth G. Gordon W7EKB

"Courage is being scared to death but saddling up anyway."--- John   Wayne