[MilCom] Monitoring Antenna Height/Remote Antennas?

[Bill Jones]

>   Generally my monitoring
> experience is that Base Ops, Metro/Wx, & Command Post gets calls from C5
> aircraft 30 minutes out, so I'd assume the aircraft are about 200 miles away,
> probably flying at an altitude greater than 25K.  So for the monitoring
> hobbyists, perhaps an antenna just above the roof would work very well for most
> hobby monitoring applications?

I agree that the antennas don't have to be terribly high, but I think when 
they say 30 min out that they are closer than that.  For KC-135, I typically 
hear them say they are 30 min out when they are about 100 miles from the base. 
 For slower prop planes like P-3s, 30 min out is more like about 45 miles.  Ie 
I think that the 30 minutes must include time spent in the pattern, etc. (This 
is all based on hearing tankers flying into Bangor and P3s flying into 
Brunswick, which I hear flying near my house while calling in that they are 
about 30 min out, so it's all very approximate.  But 200 miles is way too 
far.)



 


Bill Jones         N3JLQ
Sweden Maine
wejones at megalink.net
http://www.megalink.net/~wejones