This is a good article that discusses the subject at hand
https://thepublicsradio.org/episode/theec-radio-for-churches-during-coronavirus
--jv
NA5D
On 4/8/2020 12:13 PM, SETX Telecom via BVARC wrote:
The LEGAL limit for unlicensed operation in the FM as well as other
bands is in Part 15....It is NOT based on power but a field
intensity..In the FM band of 88-108, it comes CLOSE to 100mw ERP
(Effective Radiated Power) but not exact. Bluetooth is usually limited
to 30ft. 100mw on FM MAY get you legally 300 ft....A CB radio would
cover that better but then how many of the attendees would have CBs
oin their cars?
Multiple FM Part15 xmtrs placed in the right spots would work IF You
can find enough clear frequencies. Then you have to get the audio to them
Christopher W. Boone
WB5ITT
Trustee, W5APX
Chief Engineer, iHeartMedia New Orleans
On Wed, Apr 8, 2020 at 12:01 PM john Parmalee via BVARC
<[email protected] <mailto:[email protected]>> wrote:
I have watched this thread and thought about it and an idea struck
me. Why not use a service monitor. An IFR or equivalent will
cover the FM band, I don't know it it will modulate to 75 kHz
without distorting so you have to turn the receiver up a bit. I
don't know what size of parking but I suggest an antenna cut to
frequency up 15 or 20 feet or you might try a mobile mag mount
stuck to a pipe vertical. it will be short but has a coil in the
base that will extend it. Make sure it has something metal to
mount to to.
I defiantly think you need a run through with enough time for a redo.
As far as the FCC is concerned you are a pirate station and
illegal. As far as I know under part 15 you can run a low power
AM transmitter but no provisions for the FM band. It is quite
common though for translated audio in services and such with no
enforcement action if there is no interference to anyone. Choose
your frequency by listening carefully,
I expect a full parking lot will be different RF wise from an
empty, Get that antenna in the air, you will need the margin.
Call me if I can help, let me know how it went. Good luck and may
god bless your service..
John Parmalee
[email protected] <mailto:[email protected]>
281-380-3811
K5VGM WI2XLJ
In a message dated 3/31/2020 4:45:33 PM Central Standard Time,
[email protected] <mailto:[email protected]> writes:
Found this on Google; haven't verified with the legal code.
https://learnchristmaslighting.com/what-fm-transmitter-do-i-need-for-my-christmas-light-show/
What FM Transmitter Do I Need for My Christmas Light Show? –
Learn Christmas Lighting
<https://learnchristmaslighting.com/what-fm-transmitter-do-i-need-for-my-christmas-light-show/>
Okay, maybe they aren’t “turning the dial” quite like the old
days, but if you want your display to be heard, you need an FM
transmitter.. Even though setting up some large PA speakers
might seem like a good idea, you’ll quickly lose the
friendship of your neighbors!
learnchristmaslighting.com <http://learnchristmaslighting.com>
------------------------------------------------------------------------
*From:* BVARC <[email protected]
<mailto:[email protected]>> on behalf of Ravi Patrick
Ratnala via BVARC <[email protected] <mailto:[email protected]>>
*Sent:* Tuesday, March 31, 2020 4:40 PM
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB <[email protected]
<mailto:[email protected]>>
*Cc:* Ravi Patrick Ratnala <[email protected]
<mailto:[email protected]>>
*Subject:* Re: [BVARC] Fm transmitter for Easter service
Marty,
I've read the same thing - somewhere - but I can't find
anything permitting it in the regs, so I don't know if it's
true. If it is, I imagine it would be for things like
bluetooth devices that are designed to pump spotify from your
phone through your car's radio. If so, I'd suspect that "100
feet" is a dreamy maximum, and that it would sound terrible in
the real-life scenario you describe.
But as always, FleaBay to the rescue: a 6-watt FM
transmitter! For just a hundred bucks, you can start your
very own pirate radio station anywhere on the commercial FM
dial. This thing should provide nice, punchy audio to your
entire church's congregation. Very, very illegal, though.
https://www.ebay.com/itm/Retekess-6W-FM-Transmitter-Stereo-Station-Antenna-Wireless-Factory-Church-Home/324108794811?hash=item4b7663bbbb:g:48UAAOSwBfhcExIJ
How about just setting up a PA system?
73 de N5OL
On 3/31/2020 3:01 PM, Martin Blaise via BVARC wrote:
I read that anything 25 milliwatts or less for 100 feet is ok
On Tue, Mar 31, 2020 at 3:00 PM Alexander Park via BVARC
<[email protected] <mailto:[email protected]>> wrote:
I'm not sure that will be legal without an license
On Tue, Mar 31, 2020, 2:09 PM Martin Blaise via BVARC
<[email protected] <mailto:[email protected]>> wrote:
My church would like to do a parking lot service
for Easter and my pastor asked me what fm
transmitter we could use to broadcast the service
from the church to the cars per social distancing.
Email or call me at 713-305-2148 thanks Marty
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