I have a quad radio node that is 110V AC only, and I'm getting together
what's needed in order to power it on a solar panel.
Obviously, I'll need an inverter to take from 110V to 48V DC.
Does anyone have any suggestions for batteries? Someone suggested some
high capacity 6V ones (like they
Ok I cannot find a decent 4.9 FD radio. Looks like Ligowave, Radwin, and
Redline are the top choices.
On the same line of thought what are the legalities for passing
commercial data over a 4.9 link if its primary function is for
Government data?
- Matt
Matt Jenkins wrote:
Does anyone know
Did you look at Exalt?
Dan English
Plexicomm - Internet Solutions
d...@plexicomm.net | 1.866.759.4678 x103
Fax: 1.866.852.4688 | Emergency Support: 1.866.759.9713
- Original Message -
From: Matt Jenkins m...@smarterbroadband.net
To: WISPA General List wireless@wispa.org
Sent: Friday,
Exalt is a good choice... but like Ligowave and Redline would be half
duplex. Just like Moto would be a good choice (I actually have a PtP 400
Full connectorized link on the shelf that I am dying to sell :-)
The Radwin RW2000/WL1000 are the only 4.9GHz links that I know of that are
Full Duplex
http://exaltcom.com/sublanding.aspx?id=70
Matt Jenkins wrote:
Ok I cannot find a decent 4.9 FD radio. Looks like Ligowave, Radwin, and
Redline are the top choices.
On the same line of thought what are the legalities for passing
commercial data over a 4.9 link if its primary function is
There is a System Power Calculator in an Excel spreadsheet here
http://tyconpower.com/learning_center/learning_center.htm
There's also some other links on this page to some government pages that
have useful info.
Scott
-Original Message-
From: wireless-boun...@wispa.org
Right. It's for government (public safety) data.
Matt Jenkins wrote:
Ok I cannot find a decent 4.9 FD radio. Looks like Ligowave, Radwin, and
Redline are the top choices.
On the same line of thought what are the legalities for passing
commercial data over a 4.9 link if its primary
There is alot of confusion here.
From a RF standpoint NONE of this equipment is full duplex.
From an Ethernet Port standpoint I know the exalt gives me full duplex
specs. I cannot answer for Motorola or the others.
The biggest thing you should look for is support, asymetrical bandwidth
Radwin radios are designed for TDM transport... that is really the market
they play towards... cellular carriers. Transport is fixed to full
duplex... and designed with that in mind. But from an RF standpoint you
would be right since it only transmits on one channel.
The Radwin gear transmits
Nope...still have the same issues.
If one radio did the transmitting and the other link the receiving you
would be true RF full duplex but with TDD that theory may have holes.
Josh Luthman wrote:
What about settings up two links side by side and using a router to make
them pseudo-fdx?
We are seeing something from our Macintosh users only, they are establishing
200 - 1000 connections in IP/Firewall/Connections. Connection source is port
80. Some go to Google, yahoo, and RIPE Network in Amsterdam, etc.
Had one user run a virus scan, said came up clean
.
anyone else seeing
My guess is that the Mac users don't tell the connections to close
correctly. From what everyone keeps saying it should have the same TCP
stack as some *nix kernel, but I have always felt it different.
If you kill their connections, do they come right back?
Josh Luthman
Office: 937-552-2340
Have your customer run this in a terminal window (the terminal window is
found in Applications/Utilities):
sudo netstat -a
Have the customer copy and paste EVERYTHING (they will have to scroll
up)! into an email and send it to you. Take a look and see what apps are
making these connections.
I am looking into this as well.
Josh Luthman wrote:
What about settings up two links side by side and using a router to make
them pseudo-fdx?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
Those who don't understand UNIX are condemned
If it's a novice user you'd want to do something like
sudo netstat -a ~/myconnections.txt
Then have them email ~/myconnections.txt (note this is the *nix method, I
don't know if Mac has a ~ for their home directory.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite
The Exalt is also a TDM radio.
I didn't see that Radwin was MIMO. Does it operate on the same channel
or does horizontal and vertical need to be on separate channels?
I agree that Radwin advertises full duplex but again that is either a
mistake or sales fluff. All the equipment is TDD.
And
Exelent tip, thanks
Scott
- Original Message -
From: D. Ryan Spott rsp...@cspott.com
To: WISPA General List wireless@wispa.org
Sent: Friday, March 27, 2009 1:21 PM
Subject: Re: [WISPA] Mt and Macintosh virus
Have your customer run this in a terminal window (the terminal window is
You can stop looking. You still wont get a full duplex link. FD is the
radio transmits on one channel and receives on the other. Considering
there is no equipment on the Commissions list that does not do TDD or
something similar you will never get true FD.
-B-
Matt Jenkins wrote:
I am
I am aware of that. I have begun looking at using routers to do the FD
part and 2 pairs of radios with filters. The advantage of this is if
their is a radio failure everything could then auto route all traffic
over the one remaining radio.
Bob Moldashel wrote:
You can stop looking. You still
Ok. That makes sense. I thought you were still attempting full duplex
My bad
Sent from my Verizon Wireless BlackBerry
-Original Message-
From: Matt Jenkins m...@smarterbroadband.net
Date: Fri, 27 Mar 2009 11:34:28
To: WISPA General Listwireless@wispa.org
Subject: Re: [WISPA] 4.9 Full
Better to cut the bandwidth in half then the whole thing being down, though!
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer
On Fri, Mar 27, 2009 at 2:34 PM,
Yes it is MIMO. It operates in the same channel in Horizontal and
Vertical... much like Orthogon et. al.
Your right though... its sales fluff (which in this case though could be
helpful sales fluff). Guess I got caught up in it without really thinking
about that :-)
Daniel White
3-dB Networks
I'm considering a 24ghz link for a 3 mile shot. The path calcs all work
fine for our use, climate, etc.
I'm interested in hearing first from anyone who has used 24 gigahertz
radios (dragonwave most likely). Have you had any interference issues?
Any recommendations on what to check for
Dennis,
Sent you one offlist. Let us know if that works.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer
On Fri, Mar 27, 2009 at 4:23 PM, Dennis Burgess
You are not going to have a problem. Considering equipment costs, amount of
available channels, antenna beamwidth and polarity you should have no problems.
I have been on over 200 rooftops in NYC, philly, Baltimore and DC and I have
only seen one link.
Sent from my Verizon Wireless BlackBerry
Randy,
24Ghz is sometimes thought of as interference free, based on its approximate
1.5 degree beamwidth at 2ft, and about 2.6 degree beamwidth at 1ft dish.
The dragonwave works on 40mhz channels and allows setting to one of two
channels sets (A 24078500 tx and 24173829 rx, or B 124126170 tx
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