Quad shield coax & dielectric?
Ian Jackson wrote:
Yes, I should have been more clear. It is 7dBmV - but the TV industry
generally shortens it to dbm (and that's how the test equipment is
labeled). Just like other industries which use dBmW generally shortens
it to dbm.
No. You are absolutely wrong. No one in the professional cable TV would
even think of referring to 'dBmV as 'dBm'. There's around 48dB
difference between the two.
However, you are right about 'dBmW' - which is invariably (and
regrettably) shortened to 'dBm'.
I think here it is more customary to express voltage levels in dBuV.
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