radio mic making noises |
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cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Online Points: 7442 |
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Posted: 17 November 2016 at 1:42pm |
hi
i have one radio mic.. it's a trantec s5.3 handheld mic, and receiver. normally it's fine (small indoor things i think have always been fine), but sometimes on outdoor events it makes a lot of noise. the noise is random occasional little hisses and fuzzy noises.. sounds a lot like a dusty needle on a scratched record. muting the handset stops the noise completely. i just don't know enough about them to know what could be causing this. could it be weak signal, something else interfering, or an problem with the handheld itself? thanks if anyone can give me a pointer.. frequency is 838-865mhz. |
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aziz
Registered User Joined: 12 January 2011 Location: ireland Status: Offline Points: 136 |
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Have you tried the squelch adjustment on it
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cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Online Points: 7442 |
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i have not.. i have not heard of such a thing. i shall look that up so, thanks terry.
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azlan
Registered User Joined: 09 January 2012 Location: W12 Status: Offline Points: 364 |
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basically, squelch is kind of like a gate, only for RF signal it cuts the audio from the receiver if the signal from the transmitter drops too low, in order to stop it from sending out random noise (from all the other weak RF thats constantly everywhere)
Raising the squelch basically increases the likelihood of audio dropping out under marginal signal conditions, but reduces the chances of random noise spluttering out. I would also check if you have a pilot tone function, and if you do, make sure it is on. What kind of antenna are you using as well? if you are using 1/8 wavelength stubbies, then they may just not be getting enough signal in the first place, so trying some proper paddles (ideally log periodic's or something else directional). Omni's are great to an extent, but you want to do everything you can to maximise your signal/noise ratio.
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aziz
Registered User Joined: 12 January 2011 Location: ireland Status: Offline Points: 136 |
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You could be just running out of rf on a bigger stage,try to keep the reciever as close as poss to the transmitter and high as you can and away from walls and metalwork and keep a clear line of sight,tweaking the squelch might help a bit but as with all things wireless,it's always a gamble
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cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Online Points: 7442 |
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ok, tis the season for the outdoors, so i'm back to this.
i'd need the pair of these to replace the 2 small wifi router style antennae on the receiver? https://www.thomann.de/ie/ld_systems_ldws100da_richtantenne.htm have had eyes open for some second hand ones but they're not showing up much. these ones have shown up on a local site, but they seem to be the wrong frequency range. http://www.adverts.ie/other-music-instruments-equipment/shure-active-directional-antenna/13006912 so a pair of these mounted on mic stands should improve things? the few outdoor things i've done with this have been sporting events.. fun runs, 5 a side tournaments. quite long distance between transmitter and receiver. cheers. |
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