I can tell you from past experience it is a good idea to find a good
brand and use it. One of the things I learned at the WCA show a couple
of weeks ago was that if you want to have a business worth selling later
you had better consider using one high-quality well-known platform
instead of a hodge-podge of radio solutions. Alvarion is definitely one
of those "good" brands. There are others but I am betting that many out
there would choose to go with Alvarion from the start if they had it all
to do over again. With that said I will not discount the value I have
seen in others out there like Trango, Tranzeo, Waverider, Mikrotik,
Star-OS, etc. The trouble is though that it is rare to find one brand
with one management interface (All FCC System Certified as well) for all
the different platforms you will need as a WISP. With Alvarion (and few
if any others) you can literally build your entire network on one
trusted platform. I went to an Alvarion sponsored conference on WiMAX
triple play offerings in Washington D.C last week. that was very
informative but was NOT the reason I said what I did about Alvarion.
There was a company who specialized in WISP acquisitions at the WCA show
that described the most important factors in determining the value of a
company. One of the negatives about WISP operations was generally the
frequent use of a "hodge-podge" of different incompatible platforms of
radios. They stated this was a very big problem for WISP valuations.
They said that using one good brand of radios was a good way to make
your system worth its highest value. Just some food for thought here
guys. Especially anyone who might have funding but is new to running a
WISP. Rolling your own solution is not always the best way to go and can
actually hurt your efforts in many cases. Find a good brand and stick to
it.
Scriv
Kurt Fankhauser wrote:
The more you think about it the more you are going to find reasons not
to do it, what you have to do is just jump in and do it. Once you do you
will know what you want to do. Its like sky diving, you have to just
jump into it, if you stand up there and question it you will just freeze
up and not go anywhere.
Kurt Fankhauser
WAVELINC
114 S. Walnut St.
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Wallace
Sent: Monday, January 30, 2006 8:45 AM
To: WISPA General List
Subject: Re: [WISPA] Legal Radio and Antenna Combos - Are there anyin
existance?
Marlon,
What would you suggest? I am afraid of proprietary stuff because I
don't know enough industry history to understand the players.
Jason
Marlon K. Schafer (509) 982-2181 wrote:
Hiya Jason,
Why not just buy ISP grade product? Then you don't have to worry
about all of this.
AND at 2.4 the CLIENT side isn't limited to 36 dB. It starts there
with a 30 dB radio with a 6 dB antenna. For every one db of radio tx
dB you drop you can go up 3 dB of antenna gain.
Marlon
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage) Consulting services
42846865 (icq) And I run my own
wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
www.odessaoffice.com/marlon/cam
----- Original Message ----- From: "Jason"
<[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, January 29, 2006 12:26 PM
Subject: [WISPA] Legal Radio and Antenna Combos - Are there any in
existance?
Everyone,
I am at my wits end. I have searched high and low for a mini-pci
radio & sector antenna combo for an 802.11b AP that are legal under
the current FCC rules, which by my interpretation are:
1. Total output is 36 dbm or less.
2. Antenna characteristics must be the same as an antenna that has
been approved for use with that radio, where TYPE refers to antennas
with SIMILAR in and out of band radiation patterns.
3. Antenna gain must be equal to or less than the maximum the radio
has been approved to work with.
I can NOT find a radio that is approved for any antenna with real
gain. I don't want to mind just the SPIRIT of the law, but the law
itself.
What combos are you other guys who like building your own system. I
want to put together a Mikrotik with 3 radios and sectors for an AP.
The sectors I am looking at are:
Antenna Gain Width Pol
WRW2400-VF/A/H 13dbi 120 H
http://www.winncom.com/moreinfo/item/WRW2400-VF/A/H/index.html
DT-AN-24-120H-135 13.5 120 H
https://www.demarctech.com/products/reliawave-antennas/2_4Ghz/DT-AN-24-1
20H-135.html
DT-AN-24-60120V-1521 15 120 V
https://www.demarctech.com/products/reliawave-antennas/2_4Ghz/DT-AN-24-A
S-60120V-2115.html
HyperGainR HG2417P-120 17dbi 120 V
http://www.hyperlinktech.com/index.php
Teletronics 19 120 H
http://www.teletronics.com/antenna2-419dBSector.html
Teletronics 22 140 H
http://www.teletronics.com/antenna2-422dBidirectional.html
I am sorry if this table doesn't wrap well on some email clients.
I am still looking for a 18 dbi HZ pol antenna with FCC certs because
I think it can be used with a DT-RWZ-200mW-WC, although it is pcmcia
and I'll have to figure out how to use it with a 500 series RB (Note,
there are foreign antennas that have 18 dbi, but don't come with FCC
certs; see my last post). As far as I can tell, the CM9's can't be
used anywhere.
Ideally, I would like to use the 22 dbi Teletronics in my application
with a 14dbm radio for the greatest receive gain. Or at least a HZ
polarized antenna with decent gain.
Anyway, can someone please help. I appreciate those of you who have
helped me to even reach this point.
Jason Wallace
WISP startup
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