7 Jul
2013
7 Jul
'13
10:26 p.m.
BTW, we'll provide application notes as we get closer to and after
delivery. Our first priority will be applications we are directly
supporting. We invite users to provide application notes as they build
additional solutions.
------------------------------
John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223
<http://k7ve.org/blog> <http://twitter.com/#!/john_hays>
<http://www.facebook.com/john.d.hays>
On Sat, Jul 6, 2013 at 9:15 AM, Michael E. Fox - N6MEF <n6mef(a)mefox.org>wrote;wrote:
(Please trim inclusions from previous messages)
_______________________________________________
John,
I'm glad you're on this list. Didn't realize that.
I've look and found no "solution" oriented documentation -- i.e. how can I
use the device? All of the information about the internals, like "socket
interfaces" may have meaning for some. But, since I don't write protocol
internals, it doesn't help me understand the deployment scenarios.
For example, assume I have four JNOS systems that are currently connected
to
each other on a single subnet using a single 440 frequency. They talk to
each other using IP over AX.25. I would definitely like to increase the
speed. But it's not clear to me how I would deploy the UDR56K-4 to replace
the existing 440 radios/TNCs. What protocol would it run, at what speed?
What would the IP network diagram look like?
If this question is not appropriate for the 44-list, we can move it to your
yahoo group.
Thanks much,
Michael
N6MEF
-----Original Message-----
From: 44net-bounces+n6mef=mefox.org(a)hamradio.ucsd.edu
[mailto:44net-bounces+n6mef=mefox.org@hamradio.ucsd.edu] On Behalf Of
K7VE -
John
Sent: Friday, July 05, 2013 11:02 PM
To: AMPRNet working group
Subject: Re: [44net] hardware vs. software
(Please trim inclusions from previous messages)
_______________________________________________
BTW -- the modems in the UDR56k-4 are DSP to I/Q modulation/demodulation
and
run on the included Linux card. The intent is to have flexibility in
modems, protocols, and applications and provide an open source environment
for the experimenters in the user community.
The modems, and protocol stacks, will be available on socket interfaces, so
protocols and applications may run either on the radio's embedded system or
via interconnection to another host.
By having on-board processing we also are looking at very low tx/rx
turnaround time, well below what could be done on a USB or serial port.
One application is using the device as an 'Ethernet Bridge' within a given
protocol, modem, and data rate.
Oh, and the price is a 3rd less than Bill posted :)
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