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Author Topic: Senhheiser AVX and DECT (1.9GHz) Intercoms  (Read 73 times)

Ike Zimbel

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Senhheiser AVX and DECT (1.9GHz) Intercoms
« on: July 03, 2022, 11:03:53 PM »

Anyone had any experience with how the Sennheiser AVX 1.9GHz wireless  system coexists with 1.9GHz comms? Does it take up a time slot? If so, if you knew you had an AVX system in play, would that limit you to, say, 49 Bolero packs instead of 50 in one space?
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Russell Ault

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Re: Senhheiser AVX and DECT (1.9GHz) Intercoms
« Reply #1 on: July 03, 2022, 11:57:44 PM »

Anyone had any experience with how the Sennheiser AVX 1.9GHz wireless  system coexists with 1.9GHz comms? Does it take up a time slot? If so, if you knew you had an AVX system in play, would that limit you to, say, 49 Bolero packs instead of 50 in one space?

I have zero experience, but given that Sennheiser recommends no more than 8 simultaneous AVX systems in North America I'd guess that each TX-RX pair uses half the time slots in a single DECT channel, or 10% of the total North American DECT spectrum (I'm ASSuming that the recommended maximum is 8 and not 10 in order to leave ~20% of the spectrum vacant to accommodate AVX's opportunistic frequency hopping).

Put another way, I'd expect one AVX system to use the spectrum of at least 5 Bolero packs, but with the automatic frequency hopping I wouldn't be totally surprised if you had to knock a whole Bolero antenna offline in order to keep one AVX system happy (although at that point you might be able to run two of them).

-Russ
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Re: Senhheiser AVX and DECT (1.9GHz) Intercoms
« Reply #1 on: July 03, 2022, 11:57:44 PM »


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