Just Sharing This WANTED - c120 to wr75 Flange transition.

John

Enthusiast.
Joined
Jan 1, 2000
Messages
3,726
Reaction score
5,528
Points
113
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
WANTED - c120 to wr75 Flange transition.
Anybody got one of these spare to requirements for sale ?

1642880559753.jpeg
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Joined
Jan 1, 2000
Messages
35,536
Reaction score
8,554
Points
113
Age
59
Website
www.sat-elite.uk
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
Possibly, but it won't look like that one.

If you are looking for efficiency you should go for a transition that is a minimum of 3" long, with tuning stubs inside. I would usually fit an orthomode with one port capped off.

What are your lower/upper frequency requirements ?
 

John

Enthusiast.
Joined
Jan 1, 2000
Messages
3,726
Reaction score
5,528
Points
113
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Possibly, but it won't look like that one.

If you are looking for efficiency you should go for a transition that is a minimum of 3" long, with tuning stubs inside. I would usually fit an orthomode with one port capped off.

What are your lower/upper frequency requirements ?

10.7 to 12.75
Have a rummage when you get a minute
 

ac1139

Member
Joined
Jun 30, 2018
Messages
54
Reaction score
29
Points
18
My Satellite Setup
120 cm PF, 180 cm offset.
My Location
100 km north of Vienna
This Cahors offset feedhorn with adapter to WR 75 looks interesting....I guess it is feedhorn with C120 flange + adapter C120 to WR 75. My guess only - comparing feedhorns from pictures.
 

Attachments

  • cahors-offset-feedhorn.jpg
    cahors-offset-feedhorn.jpg
    34.3 KB · Views: 31
  • cahors-offset-feedhorn+adapter-to-WR75.jpg
    cahors-offset-feedhorn+adapter-to-WR75.jpg
    44.6 KB · Views: 32

John

Enthusiast.
Joined
Jan 1, 2000
Messages
3,726
Reaction score
5,528
Points
113
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
This Cahors offset feedhorn with adapter to WR 75 looks interesting....I guess it is feedhorn with C120 flange + adapter C120 to WR 75. My guess only - comparing feedhorns from pictures.

Interesting, thank you.
 

Joolz

Member
Joined
Dec 21, 2013
Messages
89
Reaction score
124
Points
33
Age
56
My Satellite Setup
1.2M CM on Motor + 1.8M PF TBS5927 + 5980 and lots of poorly positioned trees!
1m Astro 55°E - 63°W
My Location
South Yorkshire
John,

I have this OMT from an old VSat dish if it helps. Note ports marked RX TX
 

Attachments

  • 20220124_173042.jpg
    20220124_173042.jpg
    109.9 KB · Views: 14
  • 20220124_173055.jpg
    20220124_173055.jpg
    89.9 KB · Views: 9
  • 20220124_173107.jpg
    20220124_173107.jpg
    95.2 KB · Views: 11
  • 20220124_173016.jpg
    20220124_173016.jpg
    109 KB · Views: 15

John

Enthusiast.
Joined
Jan 1, 2000
Messages
3,726
Reaction score
5,528
Points
113
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
John,

I have this OMT from an old VSat dish if it helps. Note ports marked RX TX

Thanks for the offer Joolz, unfortunately an OMT due to it's physical shape cannot be used in my next little project as it would be rotating and collide with the motor and positioning drive that sits along side it but thanks anyway.
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Joined
Jan 1, 2000
Messages
35,536
Reaction score
8,554
Points
113
Age
59
Website
www.sat-elite.uk
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
John,

I have this OMT from an old VSat dish if it helps. Note ports marked RX TX
The transmit will always be inline with the feed. A higher frequency means more loss if it has to go through any transition plane.
 
Top