Re: LF: Re: OP8 on 478.477 kHz

[Domenico IZ7SLZ <iz7slz.domenico@gmail.com>]

GE all,

tonight i'm testing  (with great fun !) in MF opera 1.5.4 and opds8 on the same receiver. 

See

https://www.dropbox.com/s/fsjkfuhggozzv5w/grabber.jpg?dl=0

Farest correlation actually is RN3AUS but maybe a false decode.

73 Domenico / iz7slz

On Tuesday, 11 November 2014, Guyé André <andre.guye1@aliceadsl.fr> wrote:

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: jcraig@mun.ca

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

To: rsgb_lf_group@blacksheep.org

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

 

 

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