[aprssig] The East will Rise again! (at 9600?) VHF-YES!

Brian D Heaton ky9k-lists at ky9k.org
Fri May 6 19:15:48 CDT 2016


The backbone and users access ports should absolutely be on different 
bands/frequencies.

73-KY9K/Brian


On 5/6/2016 17:00, Robert Bruninga via aprssig wrote:
>
> I looked around at 900 MHz and 6m, but then realized that the whole 
> point was to build a 9600 baud network that could be used  by EVERYONE 
> with existing APRS integrated radios that have built in 9600 baud TNC’s.
>
> It wouldn’t make sense to build a backbone that required all new 
> radios and equipment to use.  We’d have no users in an emergency…
>
> SO now I am pretty much sold on the idea of 2 meters.  Its that or 
> UHF, but UHF between omnis takes almost 9 dB more link power/budget.
>
> I also did the math for solar powered nodes and it is on my new page:
>
> http://aprs.org/ec9600net.html
>
> Looks like a 20Watt solar panel and 7 Ahr gelcel is a start using the 
> KPC-9612 and one of the $150 digital radios from argent…
>
> Photos on the page…
>
> Bob, WB4aPR
>
> *From:*Robert Bruninga [mailto:bruninga at usna.edu 
> <mailto:bruninga at usna.edu>]
> *Sent:* Thursday, May 05, 2016 1:29 PM
> *To:* aprssig at tapr.org <mailto:aprssig at tapr.org>
> *Cc:* bruninga at usna.edu <mailto:bruninga at usna.edu>
> *Subject:* The East will Rise again! (at 9600?)
>
> SAVE your KPC9612’s Boys, the East will RISE AGAIN!
>
> The Golden Packet team is toying with the idea of making our annual 
> Appalachian mountain digipeater string from Maine to Georgia permament 
> and making it a 9600 baud network for emergency and ham radio disaster 
> response and play.  We already have 3 of the 14 sites with approval 
> for installations…
>
> Lets face it, traditional packet networks are dead and although APRS 
> is alive and well, it is specific and only operates at 1200 baud.  
> Although all fully integrated APRS radios work perfectly well at 1200 
> and 9600 baud, all of the existing APRS network is 1200 because all 
> the digipeaters (not integrated APRS radios) operate at 1200 and the 
> majority of all home APRS stations and IGates use TNC’s that operate 
> at 1200.  A huge legacy.  Besides, going to 9600 only barely doubles 
> APRS speeds while degrading link reliability.
>
> So, since we have already shown for 6 years now, that this long 2000 
> mile linear chain of mountains and valleys can support a 2000 mile 
> network with only 14 digis,  why not establish a long haul 9600 baud 
> Node chain from Maine to Georgia which could be a significant boost to 
> Packet radio emergency operations. The network would not operate as 
> APRS digipeaters but as KAnodes.   As we all knew back in the 1990’s 
> link-by-link acknowledgment was vastly superior to end-to-end.
>
> We already have three sites in MD, and PA …  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.
>
> So, we are splashing this onto the APRSSIG to see if people have SITE 
> access and/or have unused 9600 baud KPC-9612’s to step up and lets see 
> what we got.  Also will need a freq.  I’m thinking 145.01 but every 
> time I think of it, people give feedback, and I LOSE or forget the 
> feedback as to what existing systems are already on 145.01, such as DX 
> clusters, etc…
>
> Every day we get MORE AND MORE addicted to our wireless 
> infrastructure, which we all know, will be hard to access in a real 
> emergency.  We need to keep the Ham radio Plan-B alive…
>
> Bob, WB4APR
>
>
>
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