Channel Master 75E Question (1 Viewer)

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BiggRedd

Thread Starter
SatelliteGuys Family
Mar 6, 2010
36
0
South Texas
I have the Starband/DN version of the CM75E. Since I have a sub to neither anymore, I pulled off the Tx/Rx SB device along with the two DN LNBF's(119 & 110) and borrowed two working KU LNBF's from a friend to use on this dish to receive 1 or 2 satellites.

My problem: What is the focal point length? The arm is 18.75" overall and from the edge of the dish to the end is 16". I have tried just about everything to no avail.

I know lots of folks have converted this dish and claim it works well.

I just need a very, very simple straight forward example and/or explanation.

I don't have enough days left in my life for much more frustration!:)
Thanks very much!
 
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chapelrun

SatelliteGuys Pro
Pub Member / Supporter
Feb 12, 2008
962
12
Berryville, VA
That dish is KU band

Welcome to Satellite Guys !!!!:welcome

The dish you have it already KU band - - - all you need to do is just connect the receive portion and leave the Transmit disconnected.

These are great dishes and work well for FTA!
 

oldford

SatelliteGuys Pro
Pub Member / Supporter
Feb 6, 2007
430
5
Eastern Maine
Use the Starband LNB and feed, note that the feedhorn is shaped to illuminate the entire dish, a regular Ku LNB is designed for a round dish and will either over or under illuminate an oval dish.

GL,Eric
 

Tron

SatelliteGuys Master
May 6, 2005
6,599
33
Metro New Orleans, LA
I agree with Oldford, and if you don't want the original LNB, at least keep the original feedhorn. You should be able to attach any C-120-flanged LNB to the feed (might have to remove a waveguide first).
 
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