Keying Expert 1.5K-FA amp

Ed K5YZW

Thanks for the info, Len.  I have wanted to do exactly what you are describing but didn't know about DDUtil.  I am using SliceMaster for WSJT-X and CWSkimmer.  Can you point me to help in setting it up and I'll try to figure out if it works with my SPE amp.  Thanks!  BTW, that's a **** of a fish you have there on QRZ!

Ed K5YZW

Thanks Bob.  I am now quite gun shy about overdriving the amp and being very careful.  I think I'll stay with 1 KW. I have noticed that setting the amp for 1 KW on CW translates to 800 watts or less on WSJT-X and I don't understand why.

Ed K5YZW

I agree Pat.  Dan made the cable I use and I have the USB control cable and control app.  It all works great.  I think my overdrive problems just built up over time with switching to the wrong antenna and other mistakes.

KD0RC

Hi Ed, Thanks - that was a fun fish to catch!  I just downloaded DDUtil from the K5FR.com site.  Open it up select setup. I see that the SPE amps are listed.  Just select your amp, select enable and select the com port it is using, and you are off to the races!
Let me know if you have issues and I will try to help.
Len

Ed K5YZW

Thanks Len.  I will give that a try and let you know.

Ed

Bob Needleman

Yes, overdriving an amp, especially a SS one, can lead to premature failure of RF and power supply components. And trying to squeeze max power out from an amp will do nothing for your received signal. The only one who benefits from that is the electric co.

Mark_WS7M

ALC doesn't work for SPE amps.  Way better to use the drive method implemented by SPE.  It's right in their manual and talked about below.