I was shipped the wrong antennas (2 foot) for an 18ghz link, I didn't
notice that it was an 11 ghz antenna set until I tried to get the radios to
link up. Best I could get was -65. It drove me crazy trying to see if I was
on a side lobe for half an hour until it got dark and I gave up. Right
...@afmug.com] on behalf of Josh Luthman via Af [af@afmug.com]
Sent: Friday, December 05, 2014 10:17 AM
To: af@afmug.com
Subject: Re: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
Waveguides are easy to swap on a tower I thought - just 4 machine screws? Way
better than swapping dishes.
Josh
via Af [
af@afmug.com]
*Sent:* Friday, December 05, 2014 10:11 AM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
I'd guess different but just ask SAF :)
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy
: Chuck McCown
Sent: Friday, December 05, 2014 9:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
Depends on the manufacturer of the dish.
Parabolic curves are all the same. Just zoomed in or out on the curve. They
all use a different part
Subject: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
I was shipped the wrong antennas (2 foot) for an 18ghz link, I didn't notice
that it was an 11 ghz antenna set until I tried to get the radios to link up.
Best I could get was -65. It drove me crazy trying to see if I was on a side
if, at
infinity, different focal length parabola are scale models of others. That
may take some thinking. Is a parabola a self scaling curve?
From: Chuck McCown
Sent: Friday, December 05, 2014 9:43 AM
To: af@afmug.com
Subject: Re: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn
We have done bench tests without anything attached to the ODUs on Trango
and Dragonwave. Since the power output is so low, I don't believe there
is any issue with this.
The dishes are the same; the feedhorns are frequency-specific. Whether
you can swap feedhorns is up to the manufacturer.
Af
Sent: Friday, December 5, 2014 9:09 AM
To: af@afmug.com
Subject: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
I was shipped the wrong antennas (2 foot) for an 18ghz link, I didn't notice
that it was an 11 ghz antenna set until I tried to get the radios to link up.
Best I could
*To:* af@afmug.com
*Subject:* Re: [AFMUG] 11 ghz dish, can one put an 18ghz feed horn in it?
Yeah, it is Radiowaves. hopefully they will fix the issue since they
were the ones that shipped directly to us.
On Fri, Dec 5, 2014 at 10:04 AM, Bill Prince via Af af@afmug.com wrote:
We
