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I'm NOT an expert, just another member of the site....but I do have long cable runs and multiple dishes which occasionally have issues, too.

There are many variables involving connections, loops in the cable, water intrusion at some point in the past, etc. Can you help us all help you with info on your setup? Motorized? Fixed with multiple dishes? Any diseqc switches? Junctions in the cable that look "correct" but may have corroded? (it doesn't take long).... Checked for voltage at the LNB on both horizontal and vertical when on the "missing" satellites? (be careful not to disconnect the LNB when the receiver is powered on) This info may be in a different thread, but having it here may help us help you! Is the post or mount perfectly straight? It could change with lots of rain, etc. We're all glad to help....but the more info the better! I wouldn't be quick to blame a very good receiver, especially if on 91W you have both horizontal and vertical channels showing up! That pretty much clears the receiver of being the culprit!

Whoa Nelly. Sorry I asked.It's working for now,so I'll leave it at that.
Thanks everyone for all the help.

The motor to lnb coax connections are subject to twisting because of the dish movement. I'd put a bet on it being a loose connector on the dish motor. Just happened to loosen when you moved to 97/99 and stay loose. Moving over to 91 tightened it enough to again work. But over time the symptoms will return, maybe even more so.

armadillo_115 said:

.I go back to 97W - Signal Quality is low and bouncing around on the channels there.So I turn it off and on again...and all is fine

Click to expand...

may suggest there could be some corrosion also in said connectors. OR the motor twitched with power application.
Sorry about my first post. Meant to follow-up much sooner but things got in the way.

Why be sorry you asked? In this hobby, things DO need attention at times, and that's why the members here love to help!

Fat Air, not sure I understand that.If you mean a diseqc motor...I don't have one.I have an actuator.I can check the coax between the VBox and lnb ... but it is zipped tied really good and I doubt it has moved.I seems relevant (to me) to note that the dish was not moving at the time.Grit-tv is one of my strongest signals and it went black while viewing.It was as if 97W either went dark or the receiver could no longer recognize it.

After reading old posts here and elsewhere,I thought that glitches are to be expected with FTA equipment and maybe someone would say" 'Hey,thas nuttin' dude,just reboot it and don't worry". I almost had a coronary when I thought my system was dead.

Now on to other matters:
I have other reasons to suspect receiver problems.I'm not going into details before completing the installation.No point in asking the whole group to go on a wild goose chase before all the grounding is complete and maybe the actuator is replaced.Also a UPS to rule out 'dirty' electricity as a potential cause.Maybe not until after I install a larger dish without a mount problem.It could be something else causing the receiver to act up.I have purposely avoided blaming the receiver to date due to all the unknown 'variables'.I'm impressed with the Micro HD except for what's noted below.

Here's as brief a description as possible for the curious minded:

1) What appears to be memory errors.Receiver reaches a state where scanned transponders are no longer written to memory... or unusual measures needed to proceed. Multiple tries,reboots,and 2 resets before I got thru the Sats . Imagine working up the Sat list until 101W,for instance.Tune it east and west until it's dead on and then do a single Sat scan...Great...12 channels found! Go to the channel list to check out the cool finds...and there ain't a dang one there! It's not complicated to do a Sat scan on this box.If transponders are found....No operator action required.Just click the 'search end' button and the channels should be listed automatically.But occasionally they DO NOT.This quirk continues to date.

2) Random readings on the Satellite meter: I can be viewing a STRONG channel with no problems.Pull the Sat Meter up over the screen...and the reading may be Sig level 45, quality Zero. Or .Sig level 90%, quality Zero. Or it may be correct.
A comparable experience in Sat setup > Motor/Switch Setting and in TP List.Sometimes the Meter absolutely does not work unless I go in and out 2 or 3 times.(Maybe some kind of random static feedback or something.... but odd that opening and closing the window 'fixes' it)

All in all,many hours wasted and frustrated.(If it was a PC,I'd be running ram tests.Checking for HD failure.Replacing the CMOS battery,etc) I don't give up easy...but I have to walk away before getting mad enough to break out the big hammer.

I've been posting too much of my random thoughts and nonsense anyway.

PS: I tried to be brief...but that's another 'glitch' that I have.