Re: LF: BINGO !! Opera decode from 477 via Delft sdr

["DK8KW & DI2BO" <dk8kw.di2bo@googlemail.com>]

Graham,

 

I will look into ROS, I have a SSB exciter that works down to 100 kHz which should be able to do the trick.

 

 

Thanks, 73

 

Geri, DK8KW & DI2BO

 

 

----- Original Message -----

From: Graham

To: rsgb_lf_group@blacksheep.org

Sent: Saturday, June 16, 2012 9:10 PM

Subject: Re: LF: BINGO !! Opera decode from 477 via Delft sdr

DF2JP

 

First  station  to  decode  off  air , at  -22 dB   that is  strong enough  to  use the  ROS-MF-2  data  mode  for  a qso !   , Opera  qso mode  needs  -20 dB min signal  level  ,

 

(ROS MF needs  Audio + ssb  or  SDR   tx  , but  is  MFSK  so  no need  for  a  linear PA )

 

18:44 500 DK8KW de DF2JP Op4 160 mi -22 dB in Duesseldorf with 0.4w + Umbrella,

18:44 500 DK8KW de G0NBD Op4 245 mi -29 dB in delft web sdr with 0.4w + Umbrella

 

From: Graham

Sent: Saturday, June 16, 2012 5:12 PM

To: rsgb_lf_group@blacksheep.org

Cc: nietoros@hotmail.com

Subject: LF: BINGO !! Opera decode from 477 via Delft sdr

First decode  from  477 ,  using  web-sdr  at Delft 

73 -G.

16:07 500 DK8KW Op4 -28 dB

*********** 16/06/2012 ***********

 

16:07 500 DK8KW de G0NBD Op4 245 mi -28 dB in delft web sdr with 0.4w + Umbrella