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Anybody having problems using Channel 70?

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TMH Music View Drop Down
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    Posted: 17 April 2019 at 9:36pm
So I’ve been told, by a music equipment retailer, that the chances of being able to use more than 2 systems is remote, due to mobile phones transmitting so close to channel 70. What’s the opinion of you guys? Opinions of anyone with actual experience would be great.
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kevinmcdonough View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kevinmcdonough Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2019 at 10:47pm
Originally posted by TMH Music TMH Music wrote:

So I’ve been told, by a music equipment retailer, that the chances of being able to use more than 2 systems is remote, due to mobile phones transmitting so close to channel 70. What’s the opinion of you guys? Opinions of anyone with actual experience would be great.

I don't know if mobiles have been causing any specific problems, but we tend to avoid it anyway because its just generally pretty unreliable. At BEST you'll get 4 systems in the space, and more often than not if you're in a built up area even that is a struggle. 

At the professional level, you can buy specific coordinated frequencies for events where you need lots of mics running together. They're coordinated by OFCOM and in theory that should be your usable set of frequencies for your show and no one else should be using them in your area. (though not everyone plays by the rules lol!). But if it's a lot of channels and its a regular thing it can get pretty expensive if you're not a high end pro show making the money to cover it. 

For day to day band use we tend to find using a Shared Licence best. For a single £80 per year licence you get unlimited access to channel 38 (606-614) and channel 65 (823-832). A much wider set of frequencies than channel 70 so you can fit much more in, and much easier to avoid other people. 

You don't get given specific frequencies as such in the licence, it's just up to you to get to your event, scan for frequencies and what other people might be using within those ranges, and use whatever is open. But unless your in the center of Broadway or somewhere else where there are lots of systems in use around you, it's pretty easy and reliable to find open channels and be confident things will run well for your event. 

For the specific band I do a lot of work with we tend to use 606-614 for our radio mics and belt packs, and 823-832 for our IEMS, and never have any issues finding clear frequencies to use. 

And for all the other more general one off gigs, shows, presentations, awards things similarly just scan and see whats available, and then after sound check leave your transmitters switched on so that anyone else in the area scans just as you did, and sees you're using those frequencies and chooses a different ones. 


k


Edited by kevinmcdonough - 17 April 2019 at 10:48pm
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