| May be 100/200 mW
per mode at the moment , Gary -15 dB
at 33Kmtr range
| 2012-02-12 20:38 | G0NBD | 0.501498 | -15 | 0 | IO83lk | 0.01 | G4WGT | IO83qo | 33 | 56 |
Sent: Sunday, February 12, 2012 7:39 PM
Subject: Re: LF: Dual Beacon test wspr & OP4
-now-
Power down to round 3 / 4 watts showing
on meter with 2 tones ,
difficult to measure with the set up at
the moment , just checked the carrier
balance with 2 tones and both peaks on
the same line on spec-lab , audio level
below onset of alc
Tx is a little over kill for 4
watts , Racal MA1723 exciter , split drive
to qty 2 skanti 250 w o/p amps combined with
5 port transformer combiner . no corona discharge :
-)
Local check using RA6790 , 3 Khz usb with agc
-off , noise floor on spec lab ~ -120 dB
Tnx all for taking a look ,
73 -G.
Sent: Sunday, February 12, 2012 6:05 PM
Subject: Re: LF: Dual Beacon test wspr & OP4
-now-
5 watts per carrier now ..
Sent: Sunday, February 12, 2012 5:46 PM
Subject: LF: Dual Beacon test wspr & OP4 -now-
Dual Beacon test wspr & OP4 .
TX only due to overlapping ,
Carrier 20 watts per mode
WSPR = 100% Tx
OP = 1 min timer
Running now 1645 z
TX set 500 KHz USB
Rx set 500Khz USB , run
WSPR and Opera as normal
WSPR audio 1500 Hz
Op audio app 1400 Hz (may
change but should not select 1500 )
Tnx all G..
G0NBD
