Today I switched to 17m and made a CQ call. VarAC then switched to slot 12 (18108.5 kHz). I soon heard the OA4B beacon on 18110 kHz (CW). That means, Vara can interfere with IBP beacons and be affected by strong beacon signals. We may just be a little too close to the beacon frequency if we use slot 12 and worse if we use slot 13 - 15.
At least we should probably keep that in mind when using the 17m band Vara frequencies. Better would perhaps be to avoid slots 11 to 15 on 17m.
73
Dieter, VK3FFB
Thank you. Most of the bands are fully utilized by many stations even on 20m we have neighbours below us like network105 and olivia above us and many rms stations all around. We just need to be respectful yo each other and listen carfully before txing. Thank you again for the heads up. 73s Irad