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Repeater on Air
Posted: Thu Dec 12, 2013 7:19 pm
by g4wvu
TN is back on air with a new (MOSFET) PA to run DVB.
Old Mitsubishi brick has nearly 24 years continuous use on it & still runs exactly the same output!
Re: Repeater on Air
Posted: Fri Dec 13, 2013 12:20 pm
by M0DTS
Is TN going to be a fixed Digital output soon or switched betwen Analogue/Digital?
I see it on Analogue fairly often from my portable site in IO94MJ.
Rob
M0DTS
Re: Repeater on Air
Posted: Fri Dec 13, 2013 11:01 pm
by g4wvu
M0DTS wrote:Is TN going to be a fixed Digital output soon or switched betwen Analogue/Digital?
I see it on Analogue fairly often from my portable site in IO94MJ.
Rob
M0DTS
Hi Rob, (must check that location
) no its switchable - actually from tonight it can Tx DVB-S but timed (due to the power consumption of the NDS encoder & Modulator) so its only available from 2000-2300 weekdays & 1600-2300 weekends in DVB.
DVB-S is selected by DTMF "8" on main audio channel or 433.4 NBFM but only during the above times for the moment. (I will fit a time-out on DTMF 8 soon so it can be requested anytime)
Power is limited on DVB to 10w average (Bird meter)to keep the regrowth to an acceptable level.
Parameters: 4MS/s, FEC 3/4, main audio on L1
Hope this answers Qs.
73s Mark
Re: Repeater on Air
Posted: Wed Dec 18, 2013 9:38 am
by M0DTS
Thanks for the info,
Analogue is easier to find when it's a weak signal
73
Rob