First of all it uses FHSS so it is not so interfeer to the other users ... second the bandwith can be adjusted (on the throughput of course) up to 2 MHZ if i remember correct but for me the big benefit is that it allow to have a mobile connection because it does not require line of sight a thing that 2.4GHZ require and also with 0.5W on 70CM you can get much bigger distance then with a regular WIFI gear
----- Original Message ----- From: "Eric Fort" eric.fort@gmail.com To: "AMPRNet working group" 44net@hamradio.ucsd.edu Sent: Saturday, July 06, 2013 6:06 AM Subject: Re: [44net] a common vendor neutral hardware/software stack for 44net. - was Re: hardware vs. software
(Please trim inclusions from previous messages) _______________________________________________ I remember hearing about these though I'd consider these to be somewhat of an oddity. again why 70cm, only 30MHZ wide & already filled with other users? Why is everyone so damn scared and afraid of moving to the amateur microwave bands where we have 1555MHZ of mostly unused spectrum from 1.2-47.2GHz? Why must we recreate the wheel so much of the time when it may be better, faster, easier, & cheaper to use directly or adapt a solution already in use in another service.
Eric AF6EP
On Fri, Jul 5, 2013 at 9:41 PM, Ronen Pinchuk
drorap@netvision.net.ilwrote:
(Please trim inclusions from previous messages) _______________________________________________ There is a company that makes PCMCIA Cards that work on the 70cm ham band give out up to 0.5 watts and give high speed data rate (dont
remember
exectly how much but few mb/s ) that can serve for wireless link for tha ham community .... Regards Ronen - 4Z4ZQ http://www.ronen.org
----- Original Message ----- From: "Jesse Hindmarsh" jesse@hindmarsh.cc To: "AMPRNet working group" 44net@hamradio.ucsd.edu Cc: "AMPRNet working group" 44net@hamradio.ucsd.edu Sent: Saturday, June 29, 2013 1:06 AM Subject: Re: [44net] a common vendor neutral hardware/software stack for 44net. - was Re: hardware vs. software
(Please trim inclusions from previous messages) _______________________________________________ Eric
I like your thinking. I have looked into similar solutions such as
Ubiquiti wireless devices. They have wireless devices that can be configured out of the ISM band and into the ham band with no mods. Plus they are in the sub $100 range making them a viable option. I have also played with some converted Linksys devices running HSMM-MESH. All great in theory, but in
my
case, I am an island. There are no hams in my region that would see the benefit or interest in such endeavors. They are more than happy to get their DX and go to bed.
Anyone in Northeast PA want to link up with some kind of RF/wireless
and
extend the Amprnet?
Jesse
It would seem Linux and Ethernet whatever architecture it's running
on
would seem to be the best solution available for routing Net44 at the moment and it works well. a standardized plug and play package of hardware
sold
by your local candy store would be nice but we're only partially there.
Being
that 44NET/Amprnet is supposed to be a RADIO BASED IP NETWORK (or at
least
interconnected islands of RADIO BASED IP NETWORK) we seem to only have
half
of a standardized solution to offer. It seems that we have forgotten
the
RADIO part. Given a live piece of cat5 with bits on it that I wish to
have
show up elsewhere what can we offer to the average ham that can go on
the
tower with Ethernet in one side and an antenna on the other, especially something standard enough that a local group can set up a network with? The only thing I can think of that even comes close is the professional
grade
802.11 hardware that's out there. (much of the consumer stuff lacks the configurablity !
we could really use such as power control and timeouts). I might
propose that we standardize the RF interface for AMPRNET on an agreed physical layer (of 802.11 unless something else is proposed and made quickly and
cheaply
available) and a relatively standard stack of hardware and software be
put
forth as a package that could be turnkey deployed by interested parties. What would others think of embarking upon such a project as a group?
who
might be interested? and what might we offer? (PS. I know of at least one manufacture of gear that would be quite happy to mod a standard product
or
products so as to have them better fit the amateur radio band plan and channels on a couple of our microwave bands as well as make provision
for
the ability to get significant QRO above the 25-30dbm out that seems standard. This in production batches maybe as low as lots of 100 units)
Eric
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