RE: [smartBridges] Playing together nicely

[Kevin Summers]

Title: RE: [smartBridges] Playing together nicely

I have heard that Teletronics amps are noisy. I haven't really seen that though.

I've heard everyone rave about YDI amps, and I can't get anything to work

with them at all. They are junk to me. (not saying they wouldn't work for someone

else's situation, they just don't get the links going for me.)

 

Take a situation where you are using a 250mW AMP. Like our Teletronics. Put

in a 500mW AMP instead, and then add a Teletronics (or whoever) bandpass

filter that has 3db insertion loss. That brings your effective output back down to

the original 250mW and it's filtered in both directions.

 

Just a thought.

 

BTW, is it possible that this guy in the marina is using channel 11 for a backhaul

somewhere? That would explain why channel 11 is messed up when people start

coming home, and why using Horizontal Polarization isn't helping.

Kevin Summers
KISTech Internet Services Inc.
www.kistech.com

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Chris Chance
Sent: Thursday, August 21, 2003 9:37 AM
To: '[EMAIL PROTECTED]'
Subject: RE: [smartBridges] Playing together nicely

Well as I recall chris (me) said that teletronics were not specifically quite amps they amp all over the place and are very noisy but last time I was told that I was wrong and that they were great ill stick with hyperlink :)

Chris

-----Original Message-----
From: George [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 21, 2003 12:04 PM
To: [EMAIL PROTECTED]

No but there is filters to consider to filter out out of band
interference. Not sure if the filters are the entire 2.4 or select channels.
George

Dave Covert wrote:

>Splatter-happy cheap equipment and amps... hmmm... hadn't thought of that...
>there is another reason for a spectrum analyzer...
>
>Let's say I 'sniff the air' and see lots of out-of-band energy coming from
>their unit... I am guessing there is an FCC rule that says 'fix it or unplug
>it immediatly'?
>
>Dave
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of Galen Manners
>Sent: Wednesday, August 20, 2003 11:17 PM
>To: [EMAIL PROTECTED]
>Subject: Re: [smartBridges] Playing together nicely
>
>
>Is the other company using any Teletronics amps?  I have had problems with
>the Teletronics amps especially when combined with Linksys.  The Linksys
>have some out of band and the Teletronics amps take that and amplify it.
>Even more specifically I have had Teletronics amps on channel 1 make channel
>11 completely unusable.  Email me offline if you want to talk more about
>amps and agc.  Just a thought.
>
>----- Original Message -----
>From: "Dave Covert" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Wednesday, August 20, 2003 10:53 PM
>Subject: [smartBridges] Playing together nicely
>
>
> 
>
>>Man, this stuff just doesn't play well with others does it?
>>
>>I just spent the evening risking West Nile virus exposure in the middle of
>>   
>>
>a
> 
>
>>marina with my laptop hooked up to an aBO trying to get more than 200K
>>   
>>
>back
> 
>
>>to my tower .7 miles away. The marina is infested with an incumbent WISP
>>   
>>
>on
> 
>
>>ch.1 using Linksys equipment and an omni (to cover 180* of marina, duh).
>>During the middle of the day, with the marina empty of ch.1 users, my
>>   
>>
>client
> 
>
>>on ch.11 gets well over 2Mbps. As more of the ch.1 users start to arrive
>>home and use the ch.1 system, my user on ch.11 sees a slowdown as well.
>>
>>My client is using an 18bdi Maxrad panel to talk to my 16dbi sector less
>>than a mile away. I know the 18dbi panel is overkill signal-wise, but my
>>   
>>
>POP
> 
>
>>is in the same general direction as the ch.1 POP and I am using the 18dbi
>>more for the confined beam angle than for the overall gain.
>>
>>I guess this is more of a rant than anything else... I just don't get how
>>these devices (11b in general, not sB in particular) have so poor
>>   
>>
>rejection
> 
>
>>as to allow ch.1 traffic to bleed over into ch.11 traffic. Anyone know a
>>good super-narrow bandpass filter design? I would love to have an inline
>>channel filter I could put on the antenna connector to knock down the
>>out-of-channel energy another 25db or so.
>>
>>Guess I'll go turn my antennas sideways and see if that helps... grumble
>>grumble...
>>
>>Dave
>>Home Wireless
>>
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