As above, the surest method is to check on an official receiver.
Try 40980. Somoene else posted issues about 40979 on another forum, he was in 40980
If you cannot get official receiver, then you have to go through all of them one by one. I have adapted the provider file to have a frequency you posted. You should not get a tune failed message.
Extract the xml file,
transfer to /usr/lib/enigma2/python/Plugins/SystemPlugins/AutoBouquetsMaker/providers
Delete the providers.cache file in /usr/lib/enigma2/python/Plugins/SystemPlugins/AutoBouquetsMaker/providers/
In ABM select a net ID ,
Run ABM (make sure there is no no swap)
Select a different bouquet, go back to Entertainment bouquet.
Check If BBC 1, BBC 2, ITV, CH4 and CH 5 in that bouquet work. If they do, great.
If no, select a different NetID, run ABM, select a different bouquet, go back to Entertainment check the 5 FTA channels.
Continue until you get a NetID where the 5 channels work
