Group -
I think Ive sussed out, changed out and burnt out the gremlins in my beacon
TX - presently running around 200w input (around 2.5 amps aerial current)
during Alaskan night-time periods (0500-1500Z) on 137.7738 Khzish on
QRSS6/CWID. The signal source on 275.548 KHzish W@G PS30 with a small HB
buffer amp.
The total resistive portion of the aerial system is circa 50 ohms, Im
guessing due to the site being a body double for set of of the film "Snow
White and the 7 ceramic insulators"...."deep deep in the thick forest lives
a LF tranmitter with lossy vegetation..."
The site here is surrounded by cotton woods, birches and firs. This evening
I put out few 1/4Y radials, Yep some 550 meters in length each, but theyve
done nothing/zilch to probably override the lossyness of this site to local
flora and sometime fauna, but I had to try; Still 2-3 amps is 2-3 amps, and
Im wondering how long it is before the beacon is heard somewhere.
I ended up with fans on the main heatsink but moreover two fans on the main
toroid! The shack sounds like a wind tunnel. Listening was a far far quieter
past time.
Laurence KL1X/WD2XDW Anchorage
http://www.kl1x.com
_________________________________________________________________
The new MSN 8: smart spam protection and 2 months FREE*
http://join.msn.com/?page=features/junkmail
|
