I am using a BCD536 and looking for some advice on a roof mount antenna.
My primary frequency ranges are 153/155mhz, 453mhz and 800mhz.
Any thoughts?
A discone will work great especially if it's tuned for the 150mhz band as the lowest frequency, but it won't have much gain so it will only work good for more local signals.
I've found that dual band 150/450 mhz antennas perform poorly at 800mhz... my best luck running similar bands is a homemade 1/4 ground plane tuned to 450mhz.
I used a uhf connector and 3/8 copper tubing for the elements, it's awesome for the 450/800 but at 150 it doen't reach out as far as a tuned antenna but it picks up more local stuff fine.
Edit: as a reference to local and distant signals... my 1/4 gp will pick up 450mhz out to 35 miles, 800mhz 20-25 miles, and 150mhz to 15 miles. This is on a 40 foot mast with LMR-400 coax.