In Reply to: Need advice on "running" a bank of 20 turners posted by midshipman on June 19, 2014 at 10:04:39:
and does the target switcher's spec'n give you this information, yes out to 500Mhz?Given that the runs are not long from tuners to switcher (yes?), and to the amplifier / pre-amp (yes?) you could probably get away with a thinnish gauge of 75ohm coax that will fit into RCA plugs for the switcher in and out.
This does all depend on how good* the FM antenna* you'll be using actually is. If it has plenty of gain* and rejects multi-path well, then feed-line and switch-contact losses become less important. That is, you may not need an RF amplifier before the switcher units. ? * IMO there is little point in comparing tuners unless all of them are being driven into full limiting*.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Edits: 06/19/14 06/19/14 06/19/14
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Follow Ups
- You'd need to know aht the frequency bandwidth of a composite video signal is - Timbo in Oz 18:48:55 06/19/14 (0)