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Radio Road Which tuner to get and getting the most from it. Thank God, for the radio! |
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Radio Road Which tuner to get and getting the most from it. Thank God, for the radio! |
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In Reply to: combiner for 3 aps 13's / 300 or 75 ohm posted by neverenoughmusic@hotmail.com on December 15, 2006 at 12:51:16:
which he might even build (and house in something weatherproof), for you! You'd proabbly get a guarantee, too.But I'd want a 75 ohm coax output, or a 300 ohm output INTO a GOOD additional 75 ohm balun.
This is because good, 'exterior use stable' 300 ohms ribbon is not easy to get, IIRC. It is audibly less lossy. High quality RF work transmitter/downlead ribbon an alternative, isn't cheap either!
I'm thinking passive because I can't see how even a cunning gainless-buffer combiner - the 'active' /powered path would ever be as quiet when listening. BIGGish QUIET / LCLCLC type PSU I'd be betting, and DC blocker caps, minimum and quite expensive - Cf a bespoke traffo thingie.
How many rcvrs/outlets is this array going to drive? how much cable?
OH yes! It may just be that staying with the balanced outputs (ie 300 ohms) of each antenna may help with losses and noise into 'the black box'. Ed will know.
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
http://www.theanalogdept.com/tim_bailey.htm
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Follow Ups
- given that each has a balun ASK Ed regarding losses there Vs /Cf losses in a bespoke combiner/transformer - Timbo in Oz 21:23:12 12/15/06 (1)
- thanks. I'll email ed again.. My set will go into one tuner only.. - neverenoughmusic@hotmail.com 05:14:10 12/16/06 (0)
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