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Re: LF: G0NBD by G3XDV OPERA, -31dB 400uW erp / 236 Km

To: <[email protected]>
Subject: Re: LF: G0NBD by G3XDV OPERA, -31dB 400uW erp / 236 Km
From: "Graham" <[email protected]>
Date: Wed, 5 Nov 2014 17:09:59 -0000
Importance: Normal
In-reply-to: <97D9C1B38C0F42988DAB6488324FDF1F@AGB>
References: <97D9C1B38C0F42988DAB6488324FDF1F@AGB>
Reply-to: [email protected]
Sender: [email protected]
Off  air  spots  from   G8HUH   @ 2 watts  and  later  G3XDV at   200 mW   last night
 
NB-  g8huh   and  g8huh/1  , two  rx  set ups  ?
 
Tnx -G,
 
 

200 mW

 

0:03    477 G0NBD de G3XDV Op8 163 mi -31 dB F:19% in Welwyn, IO91VT

***********  05/11/2014  *********** 

23:55    477 G0NBD de G3XDV Op8 163 mi -32 dB F:10% in Welwyn, IO91VT

23:14    477 G0NBD de G3XDV Op8 163 mi -33 dB F:8% in Welwyn, IO91VT

22:30    477 G0NBD de G3XDV Op8 163 mi -31 dB F:14% in Welwyn, IO91VT

 

2 watt  

 

21:22    477 G0NBD de G8HUH Op8 150 mi -23 dB F:12% in Somerset with 2,5w + 40ft top load inv L

21:05    477 G0NBD de G8HUH/1 Op8 150 mi -28 dB F:16% in Somerset with 2,5w + 40ft top load inv L

21:05    477 G0NBD de G8HUH Op8 150 mi -20 dB F:13% in Somerset with 2,5w + 40ft top load inv L

20:57    477 G0NBD de G8HUH Op8 150 mi -25 dB F:40%_Ini in Somerset with 2,5w + 40ft top load inv L

20:57    477 G0NBD de G8HUH/1 Op8 150 mi -29 dB F:27% in Somerset with 2,5w + 40ft top load inv L

 
 
 

From: Graham
Sent: Tuesday, November 04, 2014 11:32 PM
Subject: LF: G0NBD by G3XDV OPERA, -31dB 400uW erp / 236 Km

Opera  reaches  an   all  time  low  !
 
After  making a guess  at the  carrier  level  of  500 mW and  not  seeing  any  spots  for  a while  , 
may  be the  level  was too  low , 
 
Then, in came  a Spot  from  Mike G3XDV at   - 31 dB , as  non  of the  metering  was  actually  registering  the  Rf feed ,   checked  the  carrier level  with the  R&S  , to  find  it was  actually  ~ 200 mW  with the  test  tone  on !
 
So not   1 mW   ERP  , but  more  like  400  uW !
 
And  second  spot  at  -33 dB  , 
 
Not sure  if  its  congratulations  to  Mike for  the  low noise Rx ,  Mr JR   for  the  DSP  or  the  40ft  top  and  end  loaded  inv L in my  40x20 ft  back  garden , or  the  coca cola  company  for  providing  the  coil  formers  : ) [zero]
 
73-Graham
G0NBD
 
 
Rx at Tue, 04 Nov 2014 22:30:16 GMT
From G0NBD by G3XDV Loc IO91VT
Frequency: 0.477 MHz (600m), OPERA, -31dB
Distance: 263 km bearing 132°
Using: Opera v1.5.4/Rptr V1.6
Antenna: RX Op8
 

Rx at Tue, 04 Nov 2014 23:13:59 GMT
From G0NBD by G3XDV Loc IO91VT
Frequency: 0.477 MHz (600m), OPERA, -33dB
Distance: 263 km bearing 132°
Using: Opera v1.5.4/Rptr V1.6
Antenna: Op8__~33dB
 
 
 
 
 
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