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VCR passthru signal loss
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Andrew Rossmann
Jun 13, 2003, 6:55:56 PM6/13/03
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Does anyone know what the signal loss is for an RF signal passing
through a VCR? Does a VCR basically have a splitter in it, with a typical
3.5db loss?
through a VCR? Does a VCR basically have a splitter in it, with a typical
3.5db loss?
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Sofie
Jun 13, 2003, 10:39:58 PM6/13/03
to
Andrew Rossmann:
It absolutely depends on the vcr.....
*****some units are "active" and are unity, if not a very slight gain, but
the VCR must be plugged in to the AC power.... if the VCR is unplugged
from the AC power there is a fairly sizeable loss.
*****some units are "passive" and the last time I measured was less than a 1
db loss.
If you are seeing losses over 2 db I would have to think that the VCR has a
defective modulator or if it is "active" be certain that the VCR is getting
AC power..... it doesn't have to be turned on, just make sure that it is
plugged into a live outlet.
You can always compare with a few other VCRs that you have laying around to
verify the results if you suspect you have a faulty unit.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
-----------------------------------------------------
It absolutely depends on the vcr.....
*****some units are "active" and are unity, if not a very slight gain, but
the VCR must be plugged in to the AC power.... if the VCR is unplugged
from the AC power there is a fairly sizeable loss.
*****some units are "passive" and the last time I measured was less than a 1
db loss.
If you are seeing losses over 2 db I would have to think that the VCR has a
defective modulator or if it is "active" be certain that the VCR is getting
AC power..... it doesn't have to be turned on, just make sure that it is
plugged into a live outlet.
You can always compare with a few other VCRs that you have laying around to
verify the results if you suspect you have a faulty unit.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
-----------------------------------------------------
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