I'm Experiencing 'Drop-Out' & interference with my In Ear Monitor.
Which channel are you on?
Channel 69 is being
sold off by the Government for use by mobile phone operators and the
new 4G networks.
This will effect radio microphones and In
Ear Monitors (IEMs).
Most UHF radio mics & IEMs sold in the
UK (until last year) were set to either channel 69 (854 - 862Mhz) or
channel 70 (863 - 865Mhz).
Channel 70 is a licence free part
of the spectrum and will continue to be so, however as it is free (&
very narrow at just 2Mhz) it is likely to become congested with
increased usage and so liable to interference.
Radio mics &
IEMs set to the channel 69 band will no longer work as the signal
will be blocked out by the 4G traffic. It is likely that many of
these will be re-tuned to channel 70, adding to the congestion.
Radio microphones & IEMs now sold in the UK are configured to
work on the new 'shared licence' channel 38 (606 - 614Mhz).
A shared
licence lasts 1 year, costs £75 and can be used nationwide. Anyone
else in the area with a shared licence has equal rights to the same
frequencies.
This new equipment will not be usable on the
licence free channel 70.
It is still possible to buy channel
70 equipment and avoid the need to obtain a licence however the
notes above on interference should be taken into account.
For more information
go to the
Joint Frequency Management Group website.
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