[aprssig] Appalachian 9600 baud KA node Backbone

John D. Hays john at hays.org
Mon Jul 17 20:14:32 CDT 2017


BTW, here is a radio that will go to the 219 band and wide bandwidth --
https://www.bridgecomsystems.com/products/bcm-220-mhz-mobile-radio

On Mon, Jul 17, 2017 at 6:06 PM, John D. Hays <john at hays.org> wrote:

> Incorrect -- you are allowed up to 56 kbaud in 100 KHz on 219-220,
> 222-225, and 420-450 (and 19.2 Kbaud on 2m)
>
>
> http://www.w5yi.org/page.php?id=137   97.305
>
> http://www.w5yi.org/page.php?id=139  97.307 Notes 5,6,8,13
>
>
>
> On Mon, Jul 17, 2017 at 5:38 PM, Michael Barnes <barnmichael at gmail.com>
> wrote:
>
>> IIRC you can only do 9600 on 420 and above. Use of 219 will limit you to
>> 1200.
>>
>> Michael WA7SKG
>>
>>
>> On Jul 17, 2017 17:06, "John D. Hays" <john at hays.org> wrote:
>>
>>> Are you sure you are not referring to line A  which limits use of
>>> 420-430 within a certain distance of Canada?
>>>
>>> Finding a common frequency in the 430-440 segment is more likely than
>>> 440-450.  However, if you put the backbone on the 219-220 band you would
>>> have greater range and much less competition.
>>>
>>> I do have to put a plug in for the UDRC-II which can provide two radio
>>> connections one for the backbone and one for user access (or two backbone
>>> radios if desired).  https://nw-digital-radio.grou
>>> ps.io/g/udrc/wiki/UDRC%E2%84%A2-II-Cabling-For-2-radios
>>>
>>> On Mon, Jul 17, 2017 at 3:43 PM, Bob Harris <knineudx at gmail.com> wrote:
>>>
>>>> Be aware that there are restrictions on the amateur UHF (440 MHz)
>>>> frequencies in New Hampshire. The restrictions are such that the DMR
>>>> repeaters (at least in the northern part of the state) are on VHF. I
>>>> believe Canada has priority to the frequencies for military use.
>>>>
>>>>
>>>>
>>>
>

-- 

------------------------------
John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223
   <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
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