Dual Cal-Amp AT-9 Dishes

[doctor J]

For those of you who have Line Of Sight issues but would like to upgrade to the AT-9 dish for MPEG-4 receivers I can confirm a solution.
I had proposed previously that since the Cal Amp version of the AT-9 dish has regular F connectors that 2 dishes can be connected together with regular coax cable and function as one (the side arm 110 & 119 LNB of dish #1 connected to the main 101 - 99&103 LNB housing of Dish #2). I constructed a setup as above separated by 25 feet of coax between the 2 dishes and recorded the following signal strengths using an old Hughes receiver. Unfortunately my H-20 went KAPUT on the 1st restart and could not complete the test. They are way too fragile!

Cal Amp Dish #1
101 tr 1 - 99
119 tr 22-100
110 tr 8 - 88

Cal Amp Dish #2
101 tr 1 - 99
119 tr 22-100
110 tr 8 - 82

Duo-Dish
101 tr 1 - 99
119 tr 22- 99
110 tr 8 - 87

Therefore at 25 feet there is NO significant signal deterioration with the dual dish setup.

Hope this helps someone

Doctor j

 

[litzdog911]

Great information doctor j!

Here's a link to a thread that I started at dbstalk forum .... I'm trying to combine my existing 110-deg and 119-deg dishes with an AT9 dish. Currently trying to determine suitable adapters for the MCX connectors used on the WNC (non Cal Amp) AT9 dishes.

http://www.dbstalk.com/showthread.php?t=62223

 

[litzdog911]

Also ....

How did you combine your 110-deg and 119-deg dishes before connecting to the two inputs on the AT9 main LNB assemby?

My understanding is that you still need to use the SatC kit "special" LNB on the 110-deg SatC dish, along with the SatC kit combiner to combine one side of the 119-deg SatB LNB with the special SatC LNB output. I've posted diagrams in my thread at dbstalk that shows how I think this works. Can you confirm?