Negative CHP.
Positive SDSO
1. The license is San Diego County.
2.The MO license is KA4241
3. KMJ736 is for 3 additional east county peaks
4. These are residuals for mountain & desert coverage from the days of the 60's & ‘70's when everything SDSO was VHF-LO band (44/45 MHz). I have no idea how much it is used today.
5. Over the decades the SDSO moved to VHF-HI, UHF (453 MHz) & now P25. With each move the amount of VHF-LO reduced 45.38.
My listening days began in 1964 with a Layette 30-50 MHz analog (what else) receiver when I became the volunteer dispatcher for the Del Mar FD (46.46 KAY234). Fire, CHP , SO, all VHF LO. Heaven. Two years latter I left the area.
Good night.