Graham,
Copied this just now. MultiPSK Olivia 8-250 mode
73, Dave G3WCB IO91RM nr Windsor, S.E. England
CQ CQ CQ DE...gnbd g0nbd g0nbd
CQ CQ CQ DE...g0nbd g0nbd g0nbd
CQ CQ CQ DE...g0nbd g0nbd g0nbd kk
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Graham
Sent: 03 January 2009 16:25
To: [email protected]
Subject: LF: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING
NOW - 1615 HRS
Follow on from last night , As the olivia system transmits tones in
parallel
it requires a linear system, however , MFSK is a single tone phase
continuous system , I am using three applications of multipsk running
on
the same pc in beacon mode
8 tones are selected on the two modes psk31 is added as a reference
signal
and is not expected to print as reliably
All 3 modes are the same peak power level , set at the agc threshold ..
about 10 watts per system at the moment . there may be a small change in
level as each mode starts and stops , the differing beacon lengths' are
resulting in the tx windows slowly shuffling.
Note , the station is in continuous TX due to vox audio drive levels
producing alc preventing the power levels to be normalised
Running 3 mode beacon
Dial set 502 khz usb
1000 hz center olivia 8 x 250 hz
1250 hz psk31
1500 hz MFSK 8
Reports welcome
Graham
G0NBD
Io83LK
