[R-390] Reasons NOT to Solid State a 390

[JAMES T BRANNIGAN]

> > When you hook an antenna up to an HF radio, atmospherics will mask all
of
> > that.  The noise floor is the broken thermostat in the neighbors house.

> If I were to follow that logic there would be no reason to even own a HF
> receiver. I would hate to live where you do with those atmospherics always
> masking things. My area produces some extremely quiet periods with great
DX.

You are indeed fortunate to live in a quiet location.
Most urban and suburban locations sport a variety of interesting RF noises.
HV lines, cable TV leakage, appliance noise, computers and home
entertainment devices, lawn mowers......  These are combated using
directional antennas, noise blankers, DSP.....

Other QRN is from thunder storms (propagated over thousands of miles), solar
noise, splatter and harmonics from transmitters and general atmospheric
crud.

When an antenna is conected to an HF radio you should hear the "roar" of the
airwaves.
If not, check the antenna, feedline and alignment.

Jim