[ARC5] A-10 Radios

[Richard Knoppow]

    Experience with police radio on VHF is that if two mobile 
stations get on at once both can be blocked. While FM tends to 
favor the stronger signal (called capture ratio) its a mess when 
they are close to the same strength.

On 7/10/2018 1:59 PM, Bart Lee wrote:
> FM received by a mobile (or air mobile) vehicle can "washboard" 
> the received signal as the moving vehicle hits the incoming radio 
> waves. Car radios on FM frequently have this issue. Aviation AM 
> may or may not have been selected to avoid this problem, at 135 
> MHz and below. AM was the way aviation radio started, so there 
> was some lock-in, especially after Curtis LeMay selected single 
> sideband for SAC in the early 1950s. SSB's power advantages may 
> also have come into play.  73 de Bart, K6VK ##
> -- --
> Bart Lee
> ​, K6VK, CHRS, AWA, ARRL​


-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL