[Noisebridge-discuss] Radio: FCC rejection letter
r33lmm at gmail.com
Sat Dec 21 00:15:07 UTC 2013
...specifically the FCC Unlicensed Part 15 devices
*Unlicensed operation* on the AM and FM radio broadcast bands is permitted
for some extremely low powered devices covered under Part 15 of the FCC's
rules. On FM frequencies, these devices are limited to an effective
service range of approximately 200 feet (61 meters).
So what if you combined that with a "mesh" aspect, and you could create
pocket stations around the city
Seems like it would make for a fun kit as well, building mini fm
transmitters & receivers.
On Fri, Dec 20, 2013 at 4:10 PM, J.C. <r33lmm at gmail.com> wrote:
> So I see a couple of ways to hack this, all is not lost in the
> broadcasting realm.
> On Fri, Dec 20, 2013 at 10:33 AM, Al Sweigart <asweigart at gmail.com> wrote:
>> There are drawers at the front desk station currently used to hold office
>> supplies. The membership binder is kept near there also. Its probably the
>> best place even though it isn't locked.
>> On Dec 20, 2013 8:57 AM, "Noisebridge Radio" <noisebridgeradio at gmail.com>
>>> When I filed I was afraid that that the physical distance might be a
>>> problem. I filed for channel 215 (90.9 MHz). In the Bay Area there just
>>> isn't much / anything available. The best candidate frequency 102.5 had 8
>>> different organizations file for it in San Francisco alone. In many ways
>>> the FCC rules haven't kept up with technology. The reason for the distance
>>> / adjacent channel rules have to do with selectivity and signal rejection.
>>> Due to the nature of FM radio if you have 2 transmitters on the same
>>> frequency (generally) a radio will only pick up the most powerful signal
>>> and you won't hear the weaker one at all.
>>> It was an interesting experiment.
>>> I believe that Hilaire is working on an internet radio project so all is
>>> not lost.
>>> PS. Is there a place to store paper records at Noisebridge. I can keep
>>> them however as time goes by they may get misplaced or forgotten and if
>>> anybody deals with the FCC for any reason in the future they may be
>>> necessary. It would better if they were stored up there.
>>> On Thu, Dec 19, 2013 at 5:56 PM, Tom Lowenthal <me at tomlowenthal.com>wrote:
>>>> Hello hammies (or whatever). The FCC thinks we're too close to other
>>>> radio stations. Here's their letter.
>>>> Noisebridge-discuss mailing list
>>>> Noisebridge-discuss at lists.noisebridge.net
>>> Noisebridge-discuss mailing list
>>> Noisebridge-discuss at lists.noisebridge.net
>> Noisebridge-discuss mailing list
>> Noisebridge-discuss at lists.noisebridge.net
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