Re: LF: Daytime 477 OP8 test

["Graham" <g8fzk@g8fzk.fsnet.co.uk>]

Tween  WEB-SDR  Calibration

 

Just  centred  PA3ABK   and  found  setting  needs  to  be  477.200

 

carrier out side the  pass  band  , when  set  to  477.00  ...

 

G,

 

477.2

 

 

From: Graham

Sent: Saturday, August 23, 2014 8:21 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: Daytime 477 OP8 test

G4WGT also sending  ,

OP8  min decode  round  -35 dB 

G,

 

G4WGT	PA3ABK	600m	OPERA	532 km	18:30:47
G0NBD	G6AVK	600m	OPERA	321 km	19:04:40
G4WGT	G6AVK	600m	OPERA	312 km	18:55:39
G0NBD	G8HUH	600m	OPERA	240 km	19:04:40
G0NBD	G8ALS	600m	OPERA	149 km	19:04:40
G4WGT	G8ALS	600m	OPERA	148 km	18:55:40
GW4CLK	G4WGT	600m	OPERA	125 km	16:17:48
PA3ABK	PA0MLC	600m	OPERA	92 km	18:03:00
G4WGT	G0NBD	600m	OPERA	33 km	18:55:39
G0NBD	G4WGT	600m	OPERA	33 km	19:04:31

 

 

19:04 477 G0NBD de G8ALS Op8 93 mi -11 dB in Coventry

19:04 477 G0NBD de G6AVK Op8 199 mi -12 dB F:1% in Rayleigh, Essex

19:04 477 G0NBD de G8HUH Op8 150 mi -5 dB F:5%_Ini in Somerset IO81mg

19:04 477 G0NBD de G4WGT Op8 21 mi +3 dB F:6%_End in Chorley, IO83qo

19:04 477 G0NBD de PA3ABK Op8 344 mi -28 dB F:10% in Dordrecht

 

18:30 477 G4WGT de G8ALS Op8 92 mi -10 dB in Coventry with 300mw +

18:30 477 G4WGT de PA3ABK Op8 331 mi -27 dB F:12% in Dordrecht with 300mw +

18:30 477 G4WGT de G6AVK Op8 194 mi -16 dB F:24%_Ini in Rayleigh, Essex with 300mw +

From: Graham

Sent: Saturday, August 23, 2014 5:30 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: Daytime 477 OP8 test

150 watts

16:23 477 G0NBD de G4WGT Op8 21 mi +4 dB F:0% in Chorley, IO83qo

16:23 477 G0NBD de G6AVK Op8 199 mi -11 dB F:0% in Rayleigh, Essex

16:23 477 G0NBD de G8ALS Op8 93 mi -10 dB in Coventry

From: Graham

Sent: Saturday, August 23, 2014 4:33 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: Daytime 477 OP8 test

 

-14 db   at 200 miles , not  expected with  50 watts  !  should  still  decode  with  5   or  less  watts  ..

 

Tnx-G, 

15:30    477 G0NBD de G6AVK Op8 199 mi -14 dB F:0% in Rayleigh, Essex

15:30    477 G0NBD de G4WGT Op8 21 mi +1 dB F:0% in Chorley, IO83qo

15:20    477 G0NBD de G6AVK Op8 199 mi -16 dB F:10%_Ini in Rayleigh, Essex

15:19    477 G0NBD de G4WGT Op8 21 mi +2 dB F:0% in Chorley, IO83qo

 

 

 

 

 

 

 

From: Graham

Sent: Saturday, August 23, 2014 4:04 PM

To: rsgb_lf_group@blacksheep.org

Subject: LF: Daytime 477 OP8 test

Daytime 477 OP8 test

 

Just  re-assembled the  MF tuner , etc  ,  modified  the invL  , wound  the  30  ft  dog  leg  onto  cok-bottle  and  now have  2 loading  coils  , one  at the  top of the  vertical  section  and  one  at the  end  of the  top  section  , with  anit corona  ring  just  after  it  , hoisted to  top mount  , aby  40 ft  above ground .

 

tune  seems  ok , did  sharp  ,

 

Power  50  watts  carrier 

 

Running   OP8   beacon  on 477   dial  frequency  ,   478.500   ish  carrier

 

Rx - ON   , timer   16 mins 

 

Reports / traces  etc  welcome

 

73-Graham

G0NBD