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Re: LF: Daytime 477 OP8 test

To: <[email protected]>
Subject: Re: LF: Daytime 477 OP8 test
From: "Graham" <[email protected]>
Date: Sat, 23 Aug 2014 20:26:21 +0100
Importance: Normal
In-reply-to: <8644EAE175C54FFA867B33FD22AD7DBC@AGB>
References: <544EFA4492F045CCA5E15136BCAC5C05@AGB> <816B2C199D3B4939A4B2384980249F82@AGB> <B8940ACFE28B42B3805F676DB0AEE371@AGB> <8644EAE175C54FFA867B33FD22AD7DBC@AGB>
Reply-to: [email protected]
Sender: [email protected]
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
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
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
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
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
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