Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums > Wireless and Communications
Shure Axient Digital X55 Band [941MHz-960MHz]
Henry Cohen:
--- Quote from: Luke Geis on November 25, 2019, 09:26:38 PM ---I try and do a whitespace estimate for my area before the show just to see, but generally, if you are in a legal band, the issues should be little to nonexistent. WWB also allows you to put in your zip code and it will block out the respective TV channels known ( at the time of the update ) to that area.
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Not relevant to the [expanded] STL band.
brian maddox:
--- Quote from: Jason Glass on November 26, 2019, 12:10:20 AM ---The SBE coordination requirements aren't necessary for TV band operations.
If one were to inadvertently interfere with TV band operations in VHF or UHF, a 250 mW part 74 TX might cause problems for a few dozen viewers. If one interferes with 941-960 MHz ops, it can take an entire station off the air for 100k+ viewers/listeners or interrupt data connections for an entire region. Very, very serious stuff.
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I feel like that would make people unhappy. A LOT of people. As an A1 i have learned that making a LOT of people unhappy is undesirable. Makes sense that that would also carry over to RF tech. :)
Great info. Thanks again!
Jason Glass:
--- Quote from: brian maddox on November 26, 2019, 08:08:50 PM ---I feel like that would make people unhappy. A LOT of people. As an A1 i have learned that making a LOT of people unhappy is undesirable. Makes sense that that would also carry over to RF tech. :)
Great info. Thanks again!
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Don't assume that your event frequency coordinator knows these details, and for the love of God don't assume that someone else's license covers your X55 ops.
The person who transmits the signal is the operator and is ultimately responsible [you (or the company directly employing you)], and requires an appropriate call sign.
Ask your RF coordinator to copy you on all SBE emails and raise Hell if you don't personally see a specific approval before you transmit.
brian maddox:
--- Quote from: Jason Glass on November 26, 2019, 09:58:48 PM ---Don't assume that your event frequency coordinator knows these details, and for the love of God don't assume that someone else's license covers your X55 ops.
The person who transmits the signal is the operator and is ultimately responsible [you (or the company directly employing you)], and requires an appropriate call sign.
Ask your RF coordinator to copy you on all SBE emails and raise Hell if you don't personally see a specific approval before you transmit.
--- End quote ---
Trust, but verify. Always a good policy.
Scott Holtzman:
--- Quote from: Jason Glass on November 26, 2019, 12:10:20 AM ---The SBE coordination requirements aren't necessary for TV band operations.
If one were to inadvertently interfere with TV band operations in VHF or UHF, a 250 mW part 74 TX might cause problems for a few dozen viewers. If one interferes with 941-960 MHz ops, it can take an entire station off the air for 100k+ viewers/listeners or interrupt data connections for an entire region. Very, very serious stuff.
--- End quote ---
Including if I recall quite a bit of medical telemetry gear operates in that region. You could wipe out a nearby hospital wireless cardiac monitors.
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