Hello Joe,

 

I think also that the condx was not very good, and OP8 had not good decodes here, only 2 during the night but better than -30 dB. I got some other good Spectran traces for your 8 minutes TX, but no OPERA decode, strange !

Using OPERA for receiving I get many software false decode, perhaps x 100 times more than WSPR...

 

On the way, I copy your signal on 478 477,05 Hz +/- .01 Hz and perfetly stable. I’ll be rxing OP8 again to night.

 

@++ Andy F6CNI

 

-----Message d'origine-----

From: [email protected]

Sent: Tuesday, November 11, 2014 7:28 PM

To: [email protected]

Subject: Re: LF: OP8 on 478.477 kHz

 

Hi Graham,

 

It seems like poorer condx but it could be TX trouble too. There's

a sharp spike & ringing on the leading edge of the square wave as

it goes from the 4427 to the hexfet gate. Putting more uF  across

the Vdd of the 4427 didn't help and there is still hissing unless

one stands on the left foot with one's hand in the pocket.

RF is fascinating.

 

Let's have another go tonight.  Oh by the way, am I on frequency?

I miss the accurate QRG reports of Markus'  OPDS.

 

73

Joe

 

 

---

L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. www.avast.com