No signal from certain transponders at 16e?

[greencajun]

Is your dish fixed, or on a motor? I can't understand why you're getting both 16E, and 19.2E, on a fixed, offset, dish, with a single LNB.

Unless the dish is warped, maybe? But then maybe you would have problems at other satellites too.

Problem solved! I confirmed that my LNB is not a monoblock, which suggested that the dish must have been pointed a bit too far east. Perhaps it was at something like 17.5E, what is the typical beamwidth of a 1 meter dish?

Anyhow, I took the dish off USALS and turned the motor a touch further west. The missing transponders appeared, and the 19E transponders were gone. Thanks to all for the help!

 

[jeallen01]

If you find the same thing happening with other sats then you probably need to adjust the longitude setting for your location by the same amount - after which, hopefully, the motor/dish will track correctly (or at least better) across the arc.