springer said:
I managed to find the actual dimensions of the Type183(from .pdf manuals on the net) which are 182.2cm wide X 197.2cm high but could not find those for the Type180. Thing is that I got hold of a dismantled CM 1.8m replica (probably of a Type 183 since it has same measurments as above) and wanted more info since a friend of mine had bought a second hand original CM 1.8m which has slightly smaller dimensions 180cm X 196cm.
The CM type 18x all use the same reflector.
Only the feed-arms and the mount differs.
- For the Rx only, the mount is a traditional AzEL with an H-frame with double mid-bars welded to El-mechanism. The feed-arms are simple steel tubing.
- For the Rx/Tx models, an I-shaped mount is used. This has the middle bar extended to the bottom of the reflector to provide direct support of the much sturdier (and heavier) LNB-holding base-bar.
In fact, I spoke to the CM guys (now Skyware) last year, and apparently only a single mould has ever existed.
It is a very sturdy piece of engineering, and is still being used today to make CM 18x models.
So all true-bred CM180 reflectors are the same size.
(I have both an Andrews and an ASC type 180, and they are identical.)
...so I am intrigued - do you have an actual replica of a CM 180?
Does it have the channel master logo somewhere in the topmost panes on the back of the dish?