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Re: [IRCA] RF Conversion
- Subject: Re: [IRCA] RF Conversion
- From: Tim Hills <thills@xxxxxxxxxxxxx>
- Date: Sun, 17 Feb 2013 06:22:48 -0600
Craig,
I looked for something similar a while back and unless you have some
very deep pockets you might want to try a different solution unless you
want to home-brew something.
I use the twin coax that's used for satellite dishes. A balun on each
end and the center conductors fed as a balanced line or a balanced
preamp at the feed end with the power injector/DC block at the receiver
end. Oddly enough it seems to work best with the grounding block about
mid-point in the feed line. A 4:1 Balun wound with thin Litz on an
Amidon 43 material core seems to work best for the 50 Ohm input on the
receivers from ~60KHz to (over?) 30 MHz. I haven't tested the setup
above the 10m band.
I have 3 MW stations putting fat signals into my back yard and the line
runs right past the breaker box and I get very little noise pickup.
Just my $0.02
Tim Hills
Sioux Falls, SD
On 2/16/2013 13:44, Craig Healy wrote:
I am beginning to see if there are any adequate RF to fiber optic
conversions, and conversion back to the same RF. My goal is to use
fiber optic cable rather than coax or twisted pairs for antenna
connection. Fiber optic cable doesn't pick up noise and has lower
loss than cable.
I began with Google search of: "RF analog to fiber optic conversion"
That seemed to indicate that there is equipment to do that, and not
hugely expensive.
FWIW, maybe other people can find something as well.
Craig Healy
Providence, RI
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