Originally Posted by DFC
It is true that the UK has assigned 123.45 to ATS services.
Only the UK has done that and because it is the international chat frequency, it has published NOTAM and AIC to let pilots know.
The CAA say that the frequency is monitored!
Of course the Shannon FIR and the Paris FIR, Brest FIR, Amsterdam FIR etc have no such restriction that I am aware of and of course pilots can chat on that frequency just on the other side of the FIR boundary
Regards,
DFC
Not so. 123.45 may be 'the international chat frequency' on the Atlantic but elsewehere it gets used by ATC agencies. Try doing some chat on 123.45 in the Guanghzhou FIR and you'll get a b*ll*cking from Macao approach who'll rightly demand to know why your chatting on the NAT air to air frequency when your 7000 miles from the correct location. If you want to know the correct air to air frequency then look on your charts. It certainly isn't 123.45 in Myanmar FIR.