4wd
Well-known member
The contractors round here used to yack away all day long on channel 12 but it was dead if they weren't about.
Without any naughty add ons if up on a hill top you could cover huge distances and certain weather conditions did freaky things extending range further.
A highlight was speaking to somebody in North Wales from NYMoors it must be about 150 miles.
Various other people in between could hear one or other of us but not both.
With the earlier AM sets you often could hear US users in the evening and again it was not impossible to briefly make 2 way contact even from a vehicle both ends.
The science of it is that the high atmosphere could be very reflective at times and being concave from below the signal hit that layer and bounced along multiple time while being directed almost like a torch beam.
Very rarely in the early morning you could hear Australian outback truckers swearing at each other from the other direction.
The sun striking that high layer was an important element in the effect so the area you might hear varied through the day.
It was often possible to briefly speak to people in Southern France to the extent my French improved quite a bit just listening in.
Without any naughty add ons if up on a hill top you could cover huge distances and certain weather conditions did freaky things extending range further.
A highlight was speaking to somebody in North Wales from NYMoors it must be about 150 miles.
Various other people in between could hear one or other of us but not both.
With the earlier AM sets you often could hear US users in the evening and again it was not impossible to briefly make 2 way contact even from a vehicle both ends.
The science of it is that the high atmosphere could be very reflective at times and being concave from below the signal hit that layer and bounced along multiple time while being directed almost like a torch beam.
Very rarely in the early morning you could hear Australian outback truckers swearing at each other from the other direction.
The sun striking that high layer was an important element in the effect so the area you might hear varied through the day.
It was often possible to briefly speak to people in Southern France to the extent my French improved quite a bit just listening in.
