Thursday, June 9, 2022

#4m strong IORT FM stations

 


From https://en.wikipedia.org/wiki/FM_broadcast_band

The OIRT FM broadcast band covers 65.9 to 74 MHz. It was used in the Soviet Union and most of the other Warsaw Pact member countries of the International Radio and Television Organisation in Eastern Europe (OIRT), with the exception of East Germany, which always used the 87.5 to 100 (later 104) MHz broadcast band—in line with Western Europe.

Countries which still use the OIRT band are Russia (including Kaliningrad), Belarus, Moldova, Ukraine, Lithuania and Turkmenistan.

The 4-meter band (70–70.5 MHz) amateur radio allocation used in many European countries is entirely within the OIRT FM band. Operators on this band and the 6-meter band (50–54 MHz) use the presence of broadcast stations as an indication that there is an "opening" into Eastern Europe or Russia. This can be a mixed blessing because the 4 meter amateur allocation is only 0.5 MHz or less, and a single broadcast station causes considerable interference to a large part of the band.

2 comments:

Paul Stam PAØK said...

Hallo Bas, vroeger zaten daar ook televisie zenders. En dat is al heek lang geleden. 73 Paul

PE4BAS, Bas said...

Hallo Paul, ja ik weet het. Ik weet niet of er nog veel TV zenders uitzenden op 50-70MHz. ALs dat zo is zijn dat nog overblijfselen uit Rusland. Het viel me wel op dat deze OIRT zenders echt breedbandig zijn. Ik kon het niet goed ontvangen qua geluid. Op de Icom IC-706 zat een FM-wide optie die kan ik niet vinden op de IC-7300. 73, Bas