Oh trust me I am. I have delved into all settings on my scanner from c-ch output to band intervals to threshold settings etc...
I think this is just a case of bad terrain interference that only a high mounted home antenna could conquer. Not a mobile antenna.
Finding another tower they use as a control channel is the only solution I think
My truck = No Drill.
That just means it takes more effort, IMO.
Existing bolts are fair game (as example); so removing paint down to primer
underneath isn’t any violation. Thinnest layer of an anti-corrosive, as remediation.
In this manner was able to run heavier power thru existing air-line firewall holes (marine cable gland as cushion).
Pos to BATT (fused) and Neg to Frame (existing bolt).
ANCOR 10/2 Duplex. 15A at 18’ with under 3% voltage drop. Encased in FR split loom and a run to the factory radio location. (Headroom)
Coax was in replacing the failed factory harness with RG8X.
Ferrite toroids applied across the board. A bandpass filter also (look into what may help).
In the manner above, the RF Bonds on doors, the cab & sleeper were also easy.
Were this Peterbilt a sedan or pickup, the hood and trunk/bed would be just easy. (The exhaust also via muffler clamps).
That antenna mount you have might benefit in same wise as mine from RF bonds. (Quiet).
Glad you’ve not stepped aside from it.
Ever hear of state prisoners finding weak points to exploit? Time & Attention, huh?
Another vehicle (yours, maybe a relative) could also serve as model. Make any mistakes on it.
I take it as given this isn’t a form of selfishness. The push I’m feeling is about readiness (for lack of a better term). Our shop has had no qualms about it. Only questions of interest.
I’m not about to run the roads without the best radio performance I can get.
There are others who fully understand this, then there’s everyone else.
Same feeling might apply to your responsibilities.
There’s a green light out ahead.
.