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Shure PG4 frequencies


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You'd think it would be obvious. I'm trying to sort out an installation that has 2 PG4 radios, one dB VHF (that's OK), two Freeport radios, and an Audio Technica UHF. Too much UHF to work OK in ch70, probably, but I'm having a problem connecting Shure's frequency table, which tells me this:















1-4 UK shared comaptible

6-9 compatible UK Shared + User Group 4 Germany


with reality. Clearly, it's out of date, but only 4,5,9 and 10 are ch 70. Does anyone know if the channel numbers on the receiver are in the same order as this? i.e. if I set the receiver to '2' I get 856.575? I ask because they are not in ascending order, as you might expect. At present they are set to '1' and '2'!

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You don't seem to have been inundated with responses, so....


Assuming none of your receivers have a frequency display, can you borrow or hire something like a Sennheiser ew100 or 300 receiver (the original ones are very easy to tune; I don't know about the G3's), tune it to one of your freqs, & see which Tx channel kicks it into life? But, bearing in mind that each manufacturer uses a slightly different frequency set (older AT systems even use a different set from newer ones), you may not actually be able to get all 5 mics working together on Ch.70 without interference.


For info, the Freeport freqs are - (1-4) 863.100, 863.700, 864.100, 864.900. An AT 2000-series I bought in 2012 uses (1-4) 863.125, 863.375, 864.125 & 864.375, but an identical set bought last month uses 863.100, 863.300, 864.100 & 864.900 instead :angry: (This is why I don't mix manufacturers when doing installs)

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Thanks folks. The PG4 table does seem to match real life, and Audio Technica's utility gives me a few working combinations, so I've dumped the AT fixed frequency set (we'll use that somewhere else) and we do now have 4 working and legal in channel 70, plus one vhf.
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A slight note of caution - manufacturers choose their frequency sets to ensure that this particular set of hardware is intermodulation-free, which is probably why updated models can come with different frequency sets. "Borrowing" a frequency set from a different manufacturer may work ok, but might not, because the combination of hardware (filtering, etc.) is different.
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