>From some research, not experience:

Seems like you should be able to buy a 10 year license for cheap, with no
mess:

 "Group C Frequencies. The Industrial/Business Pool frequencies in Group C
are available nationwide for non-coordinated itinerant use"

(Assuming that it's one of the frequencies listed in The
Industrial/Business Pool Group C Low Power Frequencies at
https://www.ecfr.gov/cgi-bin/text-idx?&node=47:5.0.1.1.3.10.113.11&rgn=div8
)

Sounds like it's just figuring out how to fill out the correct FCC form and
paying the FCC a couple hundred dollars....

On Sat, Jun 30, 2018 at 12:02 PM, <ch...@wbmfg.com> wrote:

> I found the FCC type acceptance document.
>
> FCC Registration Number (FRN): 0005044342 <https://fccid.io/E86>
> Alphanumeric FCC ID: E86DTR100
>
> 1996
>
> 464.075 – 465.875  so 1.8 MHz channel freq width
>
> 10 mW
> 160F1D  Emissions designator.  FM Digital
>
> Supposed to be 16 KHz max BW
>
> Equipment Class:
> TNB - Licensed Non-Broadcast Station Transmitter
> Description of product as it is marketed: (NOTE: This text will appear
> below the equipment class on the grant):
>
> Suck, now I am gonna feel guilty every time I use it...
>
>
> *From:* Jaime Solorza
> *Sent:* Saturday, June 30, 2018 11:49 AM
> *To:* AnimalFarm Microwave Users Group
> *Subject:* Re: [AFMUG] OT 479 MHz
>
> 315MHz like car systems?   497MHz? That does seem odd....what power level
> does it put out?
>
> Jaime Solorza
>
> On Sat, Jun 30, 2018, 11:44 AM <ch...@wbmfg.com> wrote:
>
>> I have a horizontal directional drill.  The drill bit transmitter (sonde)
>> talk to a receiver.  They are pretty low frequencies, like 8 KHz or
>> something like that.  Then the locator sends data to a remote indicator on
>> the machine.  One of the antennas (the one on the remote indicator) was
>> messed up and one of my guys just put a random length of wire on it.  Range
>> is not good.  I told him I would figure this out and make a better
>> antenna.
>>
>> That is the easy part, I just swept the other good antenna and noted it
>> resonates at 479 MHz.  Will make a sleeved dipole for it.
>>
>> But now I am wonder if I ought to be licensing this thing?
>>
>> I expected it to be in the 300 Mhz unlicensed band (316 or whatever it
>> is).  Never thought it might be illegal until this morning.
>> FCC band plan shows the following for that frequency:
>>
>> Public Mobile (22)
>> Broadcast Radio (TV)(73)
>> LPTV, TV Translator/Booster (74G)
>> Low Power Auxiliary (74H)
>> Private Land Mobile (90)
>>
>> That is all licensed stuff.
>>
>>
>> --
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>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>
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>


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