3.5 mile ka warning?

On Olsen Mem Highway in minneapolis I get a ka warning, only at night after 12am and only traveling twards the city, never away. I got the first bleep of ka 3.5 miles before I had to turn off of the road. The signal never goes to the side, and it never goes any higher than 2 on the signal meeter. Yesterday I was on my way home and got the 3.5 mile warning again and decided to track it down, as soon as I passed where I usually turn off it went away, I drove maybe another mile or so down the road and got nothing, as soon as I turned around I got a K band that I have never seen before, and only got that warning going away from the city. Does anyone know what can cause this?

jacked up V1 would be my guess.

that would be my guess for sure....need it recaled...

That blows. Thanks.