>
> One question assuming that the DX should be listening out of the window,
how are they to know that there isn't already somebody on the intended
frequency that is too weak for them to hear?
> I ask this because a number of times in DX contests I've heard a DX
station in Europe on 7060 or something say "CQ contest, this frquency and
7240" but when when you go to 7240 there is a QSO between two 100 watt
stations that are fifty miles away.
That's always a problem, but 40 SSB should not be compared to 160. On 40,
every area of the world is plagued with strong wide BC QRM. The few holes
there are get filled up quickly. The limitation on 40 is frequency space and
available operating frequencies.
On 160, the problem is very different. Local signals are very strong
compared to DX signals, and worse yet the radios we buy are really all
pretty poor. We have a dynamic range problem on 160 that we do not have on
40 meters.
|