Your concerns are appreciated. I'm an active RF-based PASS alarm user.
Also, I've driven over many hill and dale chasing down noisy electric
fences for cattle
and invisible fences used by people to keep their dogs corralled in
their yards.
Here's some info courtesy of the TAPR site:
Sec. 15.247 Operation within the bands 902-928 MHz, 2400-2483.5 MHz,
and 5725-5850 MHz.
http://www.tapr.org/ss_15_247.html
--joe
KR6NA
On Sep 16, 2009, at 22:31:46:EDT, Mark Tyler wrote:
> the discussion has answered my questions for this band and
> application.
> Here in the Houston area I know of no 33cm amateur activity.
> No hams appear to be affected.
>
> Spread sprecturm is very robust hence should be immune from other
> users on that band.
>
>
> I enjoy QRP operation on HF -
> -- I wanted to find out if there were users who would struggle with
> additional noise.
>
> Mark
> K5GQ
>
>
>
>
>
>
>
> ---------- Original Message ----------
> From: J Carvalho <[email protected]>
> To: [email protected]
> Subject: Re: [RFI] 33cm band - Grace accountability
> Date: Wed, 16 Sep 2009 21:57:05 -0400
>
> Hello Mark,
> What exactly are you concerned about? Someone using an unlicensed band
> for human life-safety equipment or that they're using a piece of
> spectrum that was set aside for unlicensed radio usage?
>
> There are several rf bands that do not require licensing, they are my
> home portable phone(900Mhz), and my networking ISM(2.4Ghz) and UNII-
> based(5.2Ghz) network links.
>
> tnx
> --joe
> KR6NA
>
>> From: Mark Tyler <[email protected]>
>> Date: Wed, Sep 16, 2009 at 5:45 AM
>> To: [email protected]
>>
>>
>> this device is being used by firefighters.
>> It transmitts a spread sprectrum signal around 909Mhz.
>> It has about 1 mile range.
>> When I go to
>> http://www.graceindustries.com/
>> T pass multichannel monitoring system states no license required.
>>
>> It does not talk about the frequency or what other services that
> are on this band.
>>
>> I do not operate 33cm but do not want to loose it; like we did
> 220Mhz.
>
>
>
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>
>
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