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Author Topic: Portable FM receivers  (Read 2371 times)

Henry Cohen

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Re: Portable FM receivers
« Reply #10 on: May 25, 2021, 03:31:48 PM »

Did someone mention latency?  In the USA, FM stations typically employ a 7-second "profanity delay" that gives their operators a chance to beep or mute anything that could get the station fined.  Digital HD stations have an additional approximately 8 seconds of processing time, which is duplicated on their analog channel for audio alignment.

Just means that first delay tower needs to be about 700' or 1500' from the main PA  ;D
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Henry Cohen

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brian maddox

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Re: Portable FM receivers
« Reply #11 on: May 25, 2021, 04:32:09 PM »

Just means that first delay tower needs to be about 700' or 1500' from the main PA  ;D

I like how you think.

"The delay tower has to go RIGHT HERE"

"But we were gonna put the taco stand there. Can't it go 100 feet that way?"

"NOPE!"

"Why?"

"ummmm....  reasons?...."
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Russell Ault

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Re: Portable FM receivers
« Reply #12 on: May 25, 2021, 05:39:20 PM »

They are not illegal to own.{...}

Sure, but—outside of some very specific situations—in the US they are illegal to use (hence my "please don't use uncertified radios" plea).

Encouraging the OP to break the law ("you can use them as crew Comms afterwards", etc.) isn't consistent with my impression of how this forum typically operates.

-Russ
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Henry Cohen

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Re: Portable FM receivers
« Reply #13 on: May 25, 2021, 06:32:54 PM »

Encouraging the OP to break the law ("you can use them as crew Comms afterwards", etc.) isn't consistent with my impression of how this forum typically operates.

Correct; it's not (or at least try not to).
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Henry Cohen

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Jason Glass

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Re: Portable FM receivers
« Reply #14 on: May 25, 2021, 07:04:26 PM »

Just means that first delay tower needs to be about 700' or 1500' from the main PA  ;D

Haha, umm, that'd be 7,000 or 15,000 feet away!

Edit:  Doh!  Correcting my correction!  It's 7,700 and 16,500 feet.  That last 100 of 1,100 ft per second gets more significant as time marches on.
« Last Edit: May 25, 2021, 07:24:10 PM by Jason Glass »
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Dave Garoutte

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Re: Portable FM receivers
« Reply #15 on: May 25, 2021, 07:09:21 PM »

Haha, umm, that'd be 7,000 or 15,000 feet away!
Oh, those pesky zeros!
« Last Edit: May 25, 2021, 10:14:10 PM by Dave Garoutte »
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Bradford "BJ" James

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Re: Portable FM receivers
« Reply #16 on: May 25, 2021, 10:51:46 PM »

Thanks for the replies, guys.  Gives me a start.
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Henry Cohen

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Re: Portable FM receivers
« Reply #17 on: May 26, 2021, 11:12:45 AM »

Haha, umm, that'd be 7,000 or 15,000 feet away!

Edit:  Doh!  Correcting my correction!  It's 7,700 and 16,500 feet.  That last 100 of 1,100 ft per second gets more significant as time marches on.

Damn decimal place . . .
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Henry Cohen

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Patrick Tracy

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Re: Portable FM receivers
« Reply #18 on: May 26, 2021, 12:05:58 PM »

I don't know if it qualifies as decent by your standard, but Rolls makes an FM tuner with XLR output that runs on 12-15 VDC.

https://www.bhphotovideo.com/c/product/1272859-REG/rolls_hrs84_fm_digital_tuner.html/specs

Pete Erskine

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Re: Portable FM receivers
« Reply #19 on: May 27, 2021, 05:26:43 PM »

Doing a couple of beach events this summer (covid dependant) where the local radio station will be broadcasting. Organizers are hoping for some speakers to be set up in some fairly remote locations. Plan is to use a few FM receivers plugged into rechargeable powered speakers.
Any suggestions on half decent battery powered portable FM receivers? Earphone out should be sufficient.
Cheers.

Very successful in using Unity Intercom to distribute audio.  Best results with cellulsr cell phones, locally powered not using wifi.

Audio is full bandwidth and very low latency.
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ProSoundWeb Community

Re: Portable FM receivers
« Reply #19 on: May 27, 2021, 05:26:43 PM »


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