 Multiway
Radio Mics - 5 - Setting up the system 1 |
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So, you have just taken delivery of your multi-way radio micrphone system - what should you do? Well, here is a step by step guide. |
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This may or may not be organized before the radios are sent. When we hire a system, we will set the radios to a set of frequencies for the number we are sending. If you look at the frequency charts for the Trantec S4000s in the download center, you will see that for eight way systems there are a number of alternative 'sets'. We would tend to use the first set on the list unless otherwise indicated. If you have any previous knowledge of your venue, or perhaps you have had a 'scan' of the venue to check for interference (handheld scanners can be obtained for £200.00 or so), then you may choose a set that avoids certain frequencies. Remember, that unless you are using CH69 UHF or the VHF spectrum, you may need a license. (see the Q&A regarding licenses) In any event, it is important that you use a set of frequencies, because if you change a single frequency, inter-modulation may cause problems on hitherto 'good' channels. |
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Again, something you would do beforehand, but make sure that you get the right type of battery and that they are alkaline and of good quality. If the battery runs out of juice, then that channel will fail. Also, make sure you have enough (it is up to you to determine whether to use one battery per show or try and stretch them over two performances). When the transmitters are delivered, as part of your check you should have a look at the battery housing and confirm that they are solid and that your batteries 'fit'. Batteries do vary in size between manufacturers - it usually only means adjusting the springs in the battery housing with a screwdriver if your batteries are a little small. |
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Where you place your receivers depends on a number of factors :- If you want your operator to be able to monitor the receivers, checking for levels and battery warnings, then you will have to put them at the mix position. The disadvantage of this is that this probably means that there will be a long cable run to the aerials, and that the receivers will be exposed to a reasonable amount of RF interference from the audio gear at the mix position. If monitoring is not a priority, then you can place the receivers wherever gives the least interference (away from equipment, lights, computers) and the shortest cable run to the aerials. |
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