Originally Posted by Calaveras
The ATSC system is designed for stations to be adjacent as long as the difference in signal strength doesn't exceed 33 dB.
On the roof, with the spectrum analyzer. Problem solving.
The wind has moved the antennas so now re-aim & adjust.
RF-7 & RF-12. Big overload problems.
As you move the antenna with the spectrum analyzer on, it's very noticeable that RF-12 is on RF-13 in almost all positions, with a slight null pointed to RF-13 KCBA but weak and won't lock.
Same problem with KGO-7 + KSBW-8
On the other hand, KVIE & KXTV have NO problems at all because of no powerful adjacent channels.
As of late,.. KXTV has improved dramastically here. Where KVIE has not. Not sure when that took place, but it has.
Still no UHF reception here from Walnut Grove, and will never be.
Analyzer may show a UHF momentary burp from noise every 5 minutes.
Analyzer shows peaks of those stations are about 1 degree apart. With KVIE 1 degree north of KXTV.
May try to figure out how to do a signal cancellation of RF-12 & RF-7 with 3 antennas.
To bring the Salinas stations online.
The FM band looks to be 5 times stronger then the tv band.
It's a "wall" on the analyzer.
After the re-pack, should probably bring down RF-12 & RF-7 here so 8,9,10,& 11 are problem free.