Post repack report.
I speculated multi-path issues on lower channels put me on wrong side of "digital cliff".
I put up a 2nd AD 91 XG to build a horizontal array pointing at SF Sutro Tower.
Increased signal quality now allows for good reception.
Need to design mount for array.
Currently using saw horse.
Generic combiner/splitter from Home Depot.
During a high wind gust event (30+ mph) I will lose reception. Not a show stopper.
Found a useful script for my Silicondust Tuner.
https://github.com/shmick/TV_Stuff
Code:
~/Downloads/TV_Stuff-master > ./channel_scan.sh -D | tee output.txt
debug mode
Beginning scan on 10519452, tuner 1 at 07/12/20 17:46:18
Locking 10519452, tuner 1 with key 12121212
Unocking 10519452, tuner 1 with key 12121212
9 channels found
RF Strngth dBmV dBm Quality SNR Symbol dbg Calc_dBmV Calc_dBm
--------------------------------------------------------------------------------------------
5 75 -15.0 -63.8 57 18.8 100 -5900 -13.2 -61.9
7 99 -0.6 -49.4 95 31.3 100 -4550 0.2 -48.5
12 100 0.0 -48.8 86 28.4 100 -4100 4.7 -44.1
13 92 -4.8 -53.5 68 22.4 100 -4900 -3.3 -52.0
27 99 -0.6 -49.4 77 25.4 100 -4650 -0.8 -49.5
28 91 -5.4 -54.1 70 23.1 100 -5100 -5.2 -54.0
29 99 -0.6 -49.4 90 29.7 100 -4650 -0.8 -49.5
33 92 -4.8 -53.5 98 32.3 100 -5100 -5.2 -54.0
34 90 -6.0 -54.8 78 25.7 100 -5225 -6.5 -55.2
~/Downloads/TV_Stuff-master >