[aprssig] The East will Rise again! (at 9600?) Freq LOG?
bruninga at usna.edu
Sun May 8 19:33:20 CDT 2016
Those within 100 miles of the Appalachians, lets do a FREQsurvey. That is,
every night put your radio on a different packet freq and run 24 hours and
see what you capture. This time, lets really tabulate the results and we
can even make an APRS object map for every packet freq from Maine to
Then we can pick the best freq for our 9600 baud backbone.
These are the frequencies to monitor:
144.91, 93, 95, 97, 99
145.01, 03, 05, 07, 09
145.51, 53, 55, 57, 59
145.61, 63, 65, 67, 69
145.71, 73, 75, 77 (79 is guard band for ISS)
When we find things, we will create APRS objects for them of the form:
> where PKT* makes them searchable on APRS maps
> where FF is the two digit frequency above,
> where SS is the state
> where xx is a UNIQUE identifier when more than one
That is the 9 digit object name, then you add your best guess of location,
and PHG data. If that is unknown, then put it in the form of a DFS signal
strength report and that will plot a hearing circle around your location.
We could each just beacon these, ourselves or if you dont know how, send
them to one of us that can keep them in the system?
Every few years, I ask this kind of info, but we dont egt anywhere or I
loose the feedback. SO this time, lets make a concerted effort.
On Fri, May 6, 2016 at 8:47 PM, Robert Bruninga <bruninga at usna.edu> wrote:
> Bryan and Bill,
> Wow, great thinking. Does the KPC-9612 then transparenltly operate KA node
> across both ports?
> Then you are right, this is the way to go. Now, which way... Im still
> leaning for 2m for the long haul between nodes, and then users come in on
> UHF because they are closer and can use beams on UHF?
> Bob, WB4APR
> -----Original Message-----
> From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of Bill Vodall
> Sent: Friday, May 06, 2016 8:22 PM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] The East will Rise again! (at 9600?) VHF-YES!
> >> But we need more than hikers,
> >> to get us access to some existing ham radio maintained sites. We do
> >> NOT want nodes to branch off down into the plains. These nodes would
> >> bog down the network. No, the main backbone would be to support
> >> emergency operations with beams that can point up to the mountains to
> >> pass traffic.
> > The backbone and users access ports should absolutely be on different
> > bands/frequencies.
> > 73-KY9K/Brian
> What Brian said!!
> If you do use the KPC-9612 you'll have a second 1200 baud port. Hook that
> to a UHF radio for user access.
> I'd argue that the 'easy' technique of mixing node to node and user traffic
> on the same node in the Legacy packet system was responsible for poor
> performance and thus disenchantment and downfall of the whole system.
> aprssig mailing list
> aprssig at tapr.org
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