[Moon] OK1dfc septum focal position.

Philippe Mondon phil.m974 at gmail.com
Mon Jul 2 19:32:01 CEST 2018


Hallo All,

Still working on the 23cms setup here.

The dish that i have is a TVRO SX-12 by Orbitron (as far as i know). I have
different pdf for that dish and the data given for the diameter range from
3.56 to 3.60m and F/D 0.36, but after assembling the dish i see 3.6m
diameter and depth of 60.5cm which makes it F/D of 0.37.

Focal point with figures above, vary from 127 to 133cm...

Did TRVO users had the exact values on their own reflector  from what the
paper says?

Also, i have read, i can't remember where, that the focal point for the
septum is some 5cm inside the mouth. Was that the case for most of you?

With 6cm difference on focal point (127-133), that makes a difference on
the lengths of the 4 legs support on the septum, and i am working on that
now...

Any feedback appreciated.

Tks and hope to get RX qrv soon ;-)

Vy73 - Phil - FR5DN


More information about the Moon mailing list