Hi All,
Not sure if I have posted here before!!! This might of interest:
My assesment, best to worst, for Inverto and Invacom with various feedhorns..........
Best- All channels watchable 24/7. Some slight blocking ,2-3am, for ITV. LNB alignment and positioning easy.
CM feedhorn + Invacom Quad LNB
Gilbertini feed horn + Invacom Quad LNB
Invacom Quad 40mm universal mount
CM feedhorn + Inverto Quad LNB
Gilbertini feed horn + Inverto Quad LNB
Worst - ITV channels blocking badly during daytime. LNB alignment, positioning critical.
Notes:
Cable length is approx 10m to Foxsat Freesat HDR receiver and 20m to Pace 2600Ci. (Foxsat is best receiver)
Skew was best at about 0 for all combinations.
LNB position was best with max distance between dish and LNB
Dish is a roof mounted 1.5m Gilbertini offset dish.
CM feedhorn appears to be better made than Gilbertini
Photographs
Photos of all combinations can be seen here:
_http://public.fotki.com/m4rkym4rk/sat-dish/
Here' photos of the best setup:
_http://public.fotki.com/m4rkym4rk/sat-dish/dscf3181.html
Note the green earth wire attached to base of the LNB. This connects to a lightening conductor attached to the base of the satellite dish mounting post.
Here's the final setup now with DIY rainshade:
_http://public.fotki.com/m4rkym4rk/sat-dish/dscf3183.html
Final result with best combination
Reception with best setup( c120 flange CM feedhorn with Invacom Quad LNB QDF-031) has been 24/7 so far but I still need longer term testing to see if this is true for all conditions. In early hours of the morning, 2-3am, some channels, ITV3 etc, still have slight blocking but are still watchable. 113.5cm from centre of dish to feedhorn face.