RF question - cb vs scanner

[Thylacine]

I've an old scanner mounted in the car, along with a UHF CB. Aerials at opposite ends of bullbar, so about 3.5' - 4' apart.
Is damage likely to occur to the scanner if I inadvertently transmit on the 477MHz (or 27MHz for that matter) whilst scanning this band?



ed

[-Scott-]

I've an old scanner mounted in the car, along with a UHF CB. Aerials at opposite ends of bullbar, so about 3.5' - 4' apart.
Is damage likely to occur to the scanner if I inadvertently transmit on the 477MHz (or 27MHz for that matter) whilst scanning this band?



ed

I wouldn't expect so. The bloke in front of you transmitting 25W from a Codan / Barrett HF radio is likely to send more power into your scanner. It's not something I would worry about.

[Harb]

Short answer - No
It may put the receiver into overload, but it wont damage it........
it will be more of an annoyance than anything because if the front end of the receiver is overloaded, it may not necessarily have to be on the exact frequency to un-mute..... and you may then end up with a audio feedback problem....it depends on how good the scanner can reject adjacent frequencies.........and also be sure to lock out the channel you are working on th UHF to stop the same problem....

Cheers

[Thylacine]

Thanks fellas.
I was confident enough to mount them there, but not enough to test my theory. Although I have a basic working knowledge of RF, I'm well aware
that a little knowledge can be a dangerous thing so thought I'd better ask.



ed