Seriously!? It doesn't need it. The have an electronic, software
controlled filter built into the radio. The only thing you'd be doing
with external fixed bandpass filters is shaping the Tx output. The 450
radios have a pretty damn clean Tx signal as is, which is one reason why
you can stack channels with zero guard band.
On 3/24/2016 7:01 PM, Eric Kuhnke wrote:
Has anyone experimented with inserting a notch filter on a 450i 900
AP, for a specific 7 MHz?
All of the options I can find are for a wider 900 band, more than a
specific 7-10 MHz section, and cost $150+ a piece, so you're adding
$300 and some jumpers and 0.5dB insertion loss.
On Thu, Mar 24, 2016 at 4:59 PM, Rory Conaway <[email protected]
<mailto:[email protected]>> wrote:
Unless Yogi Bear is monitoring BooBoo with a baby monitor, in this
particular location, I think I’m okay.
Rory
*From:*Af [mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of *George Skorup
*Sent:* Thursday, March 24, 2016 1:40 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] Cambium 450i
Dude, there's interference everywhere in the 900 band. Cordless
phones, baby monitors, security systems, smart meters, SCADA.. and
the list goes on.
On 3/24/2016 11:23 AM, Rory Conaway wrote:
Are you talking about interference on the same tower or with
other towers or devices. I don’t think I’ll have interference
issues from other sources.
Rory
*From:*Af [mailto:[email protected]] *On Behalf Of *George
Skorup
*Sent:* Wednesday, March 23, 2016 10:29 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] Cambium 450i
If you do 6 sectors, you're using the entire band and have
nowhere to go when one or two sectors is experiencing
interference. Or you have to drop down to 5MHz channel
bandwidth which sucks. This is why we do 4x90 clusters. Two
channels with wiggle room. Of course that's FSK's 8MHz channel
width. I think a lot of people have found that 7MHz on the
450i works best.
On 3/24/2016 12:11 AM, Rory Conaway wrote:
No, I’m not complaining, I’ll use them. I’ll figure out
how to hide them. Still trying to figure out the
deployment strategy on a typical tower. I have some
learnin’ to do.
Rory
*From:*Af [mailto:[email protected]] *On Behalf Of
*Mathew Howard
*Sent:* Wednesday, March 23, 2016 10:08 PM
*To:* af
*Subject:* Re: [AFMUG] Cambium 450i
Well, if you want small... there's these, I'm not sure I'd
want to try doing channel re-use with them though.
http://itelite.net/en/Katalog/900-MHz//SEC-XL0911DP.html
<http://itelite.net/en/Katalog/900-MHz/SEC-XL0911DP.html>
On Wed, Mar 23, 2016 at 11:35 PM, Eric Kuhnke
<[email protected] <mailto:[email protected]>> wrote:
Any 900 sector is going to be huge....
On Wed, Mar 23, 2016 at 9:28 PM, Rory Conaway
<[email protected] <mailto:[email protected]>>
wrote:
I’m specifically interested in the 900Mhz, I thought that
was the 450i, I didn’t know it covered 5.8GHz also. I
also need maximum bandwidth off the tower although I don’t
know tower or other mounting locations yet to determine if
I need 360 degrees. I actually have more problems with
aesthetics and those antennas are going to be an issue due
to the size. Right now I’m interested in throughput per
antenna and what kind of throughput to expect with GPS.
Rory
*From:*Af [mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of *Brandon Yuchasz
*Sent:* Wednesday, March 23, 2016 9:02 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] Cambium 450i
If you guys are talking about the 900mhz 450i 65 degree.
Straight from the horse’s mouth is the 65 and the 90 are
the same antenna. Just more role off to achieve the 90. I
have tested it outside of the 65 degree but within the 90.
I was not happy with the results. One customer had to be
put back onto FSK yesterday until we can get another AP up
or a true 90 degree. Just would not modulate up and
finally dropped off completely.
Best regards,
Brandon Yuchasz
GogebicRange.net
www.gogebicrange.net <http://www.gogebicrange.net>
*From:*Af [mailto:[email protected]] *On Behalf Of
*Josh Luthman
*Sent:* Wednesday, March 23, 2016 10:10 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] Cambium 450i
There's an OEM 90*...
Josh Luthman
Office: 937-552-2340 <tel:937-552-2340>
Direct: 937-552-2343 <tel:937-552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Mar 23, 2016 11:06 PM, "Rory Conaway"
<[email protected] <mailto:[email protected]>>
wrote:
I looked at the 450i and noticed the sector antenna is 65
degrees. Does that mean a typical tower installation uses
6 antennas? In that scenario, I’m assuming 10MHz channels
if there is no interference. In that scenario, what is
the available bandwidth per AP assuming most users get
pretty good signal. Or is there a better way to deploy
the product?
*Rory Conaway • Triad Wireless • CEO*
*4226 S. 37^th Street • Phoenix • AZ 85040*
*602-426-0542 <tel:602-426-0542>*
*[email protected] <mailto:[email protected]>*
*www.triadwireless.net <http://www.triadwireless.net>*
**
“I wish I could play little league now. I’d be way better
than before.”
