"Mysak" writes:
I'm trying to find some radio transmitter in lower FM band (lower than 88
MHz), which is 1000 - 2000 km from Prague,
...
Reason why I'm searching is meteors' tracks are reflecting signals from
transmitters which U normally cannot receive, but U can receive these echos
(and U can count them).

In the US the lower VHF tv channels often show "skip" or signal reflection
from the E layer (called sporadic E). The TV channel frequency ranges in
the US are ch2 54-60mhz, ch3 60-66mhz, ch4 66-72mhz, ch5 72-78mhz, and
ch6 78-84mhz.

Perhaps someone in your area of interest can point you at some TV stations
and channels that would be similar. Ham radio operators in the 6 meter
band also see this phenomenon.

Unfortunately there are other causes for sporadic E than meteor hits so you
would possibly see false data from just signal reflection alone. Sporadic
E gets more frequent at the peak of the 11 year solar cycle for example.

Later

Mark Hittinger