Fortec 1.2m Modification

[Costactc]

The dish finally arrived last night. $80 for a brand new in the box Anrews/Channel Master 1.2m dish, I cannot belive it. A huge thanks once again to beavs....seller says he has more to sell if anybody is interested:

 

[RimaNTSS]

Congrats Costactc, nice dish and very attractive pricing. My CM120 has exactly the same stamp on its back.

 

[archive10]

The dish finally arrived last night. $80 for a brand new in the box Anrews/Channel Master 1.2m dish, I cannot belive it. A huge thanks once again to beavs....seller says he has more to sell if anybody is interested:

View attachment 75169 View attachment 75170 View attachment 75171 View attachment 75172

Sure, I'll take a couple.
Alhtough I have no idea how to get them cost-effectively across the pond

 

[RimaNTSS]

BTW, Costactc, before you installed this nice dish, you could check whether original feedarms are holding LNB in antenna's focus. In CM120 case this is not the case

 

[Costactc]

BTW, Costactc, before you installed this nice dish, you could check whether original feedarms are holding LNB in antenna's focus. In CM120 case this is not the case

Any suggestions? I removed the feed and attached one of my spare invacom flange lnbfs and it fits perfectly to the feedhorn.

 

[RimaNTSS]

Any suggestions?

Yes! Calculate where is your antenna's Focal point is and check whether original feedarms and LNB holder hold LNB in such a way that its Phase center is co-located with antenna's Focal point.

 

[Costactc]

I will do so before attempting any type of install. Unfortunately, there is still about 2' of snow still on the ground.

 

[RimaNTSS]

Unfortunately, there is still about 2' of snow still on the ground.

That is great! Means you have more time to spend working with dish indoors.

 

[Costactc]

I decided to install the CM 1.2m later on and I went ahead with the fortec modification. My neighbour came up with a polar mount for it with an actuator. I will be ordering a VonWeise actuator later on. I haven't tested my arc yet but will do tomorrow if Mother Nature complies. Here are some pictures of the dish and mount:

 

[Costactc]

I have a bit of time on my hands today so Lex and myself are going to test out the Channel Master 1.2m dish today. Lex came up with a temporary base to place the dish as I wouldn't want to install a pole without actually knowing that this dish will work. I'm going to use my invacom twf-031 lnbf with my gibertini feedhorn to begin but if it doesn't show anything I will slap that lnbf on the feedhorn that came with the dish:

 

[mickwig]

The one on the right is the original Andrews KU feedhorn. Standard on all their dishes.

 

[Costactc]

Worked like a charm with the channel master feedhorn. The heavy duty HH motor moves the Channel Master 1.2m with ease:

 

[RimaNTSS]

The heavy duty HH motor moves the Channel Master 1.2m with ease:

Please show more detailed pictures. And do not say this motor is quiet (I know it is not).

 

[Costactc]

This motor is extremely noisy but it gets the job done effortlessly. I scanned in several ku sats on my arc and that's with a makeshift base. I will do further testing of the arc and find a way to convince the wifey of another pole install: