Quote:
Originally Posted by Stereocraig
If a preamp is used.
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Which is the specific subject of this thread.
In any event, the only thing in the signal path in either unit is a small value capacitor that passes the RF signals but blocks DC. There's not much you can do about it if you're not using an amp but to accept that you'll have a bit more insertion loss, exactly the same as if you'd had a longer coax or some other attenuation etc with or without an amp. You STILL have to do your homework and the math to calculate the insertion loss either way for any situation where you're working close to the reception noise floor. If you're in a strong signal area, it doesn't matter as there's enough signal margin to tolerate the small amount of additional loss.
I tested the IL for the ROTR100 a few years ago but haven't revisited that subject since. Since the product is pretty much dead or not available, it's a moot point as I see it.