This sounds like a shield is not connected , or broken on one of the
distribution cables.
The 10 MHz will not appreciably leak from half decent coax properly
terminated.
The 10 MHz should not be detectable unless a wire is coupled directly on
the coax braid.
That assumes the 10 MHz source
Sure sounds to me like the distribution amp does have some sort of shielding
problem, in effect.
Are the power connections (whether AC or DC) properly filtered? Are all
the
coax connectors' bodies well-bonded to the metallic enclosure?
You might want to try sniffing with a small diameter (~1
Hi
Running and shielding a 10 MHz standard signal is never easy. Ground loops
here or there are highly likely to exist and create all sorts of issues. In
some
setups, -10 to -20 dbm is not an uncommon result ( = fix the termination on
your Spectracom system …). Getting below -90 is actually
I have been using a Tbolt and TAPR TADD-1 for a few years, mainly as an
external reference source for my workbench equipment. Just got a SDR radio
kit (Ubitx) and trying to calibrate the local oscillators found this
annoying substantial 10MHz signal heterodyning with the LO's (45MHz and
12MHz).
