Hmmm, I’ll bet that is how it is getting by.  Thanks.  465 is right in the 
middle of that.  

From: Lewis Bergman 
Sent: Sunday, July 1, 2018 8:27 AM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] OT 479 MHz

If you only use a subset of those : 

This band is used in the Industrial/Business Radio Service and the Public 
Safety Radio Service. This band is allocated for both Federal and Non-Federal 
use. Operation of unlicensed Part 15 Devices is permitted between 462.7375 and 
467.5375 MHz.

On Sun, Jul 1, 2018, 4:44 AM Forrest Christian (List Account) 
<[email protected]> wrote:

  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, <[email protected]> wrote:

    I found the FCC type acceptance document.  

          FCC Registration Number (FRN): 0005044342 
          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 <[email protected]> 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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  -- 

        Forrest Christian CEO, PacketFlux Technologies, Inc.

        Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
        [email protected] | http://www.packetflux.com

           



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