[FADCA] Anticipated Signal Levels- 9.6KB

[bud thompson]

Who can comment with specific experience?

All else being equal - Where there is a dedicated backbone w/o any QRM....

Question: What RF signal level can be expected at the receiver input?

Put two UHF 9.6kb backbone  stations 160 miles apart  in Florida and there 
is no signal.
Put two UHF 9.6kb backbone stations 10 miles apart and it shouldn't take 
much power to make them work.

In our Reality Packet network in Florida, backbone links will be 30-55 mile 
paths.

What is a reasonable minimal uv of RX signal we can expect to accommodate?

This is not a WEAK SIGNAL service.. we want 90%+ efficiency 24/7... this is 
not satellite or meteor scatter packet. If it takes 100w and a 13el beam 
that is okay.

Our subjective tests today (Mitreks on each end) indicate that we can have 
very good transfers at 1.0uv.  Lower than that the throughput suffers.

bud N0IA