BEATLE,
First question... Did you ever MOVE your dish or motor, physically? I mean did you ever go out to the dish and make any mechanical adjustments? And, are you certain that the wind or weather did not move the dish off alignment for you?
If you had Galaxy 19 originally and no mechanical adjustments were ever made to the dish and motor, then we should be pretty certain that the dish is still aligned properly. DON'T touch it from here on out unless we find that there is reason to do so, but it should be fine.
Sounds to me, just as you stated, that the satellite was merely lost from the programming and we need to focus on the programming (setup) parameters to simply recover it.
I am not entirely familiar with the Viewsat receiver's setup menus, so I will have to try and explain everything in a generic sense. You will have to translate what I say to fit the Viewsat receiver.
First of all, I would power down the receiver and then go outside and disconnect the main cable from the receiver to the switch and hardwire the cable directly to the Linear port of the LNBF (though the motor of course so that the motor is still in the circuit). If you do this, then we can ignore the switch setting parameters in the setup menu for the time being. We'll come back to the switch setup later and make sure that it is right, but for now, let's concentrate on just getting the 97W sat (Galaxy 19) set up.
You have a motor, correct? Are you (or were you) using DiSEqC 1.2 motor positioning or were you using USALS? If you were using USALS originally, you need to ensure that your site coordinates are entered properly... For example, my location is 41.6°N and 96.4°W. You can determine your precise coordinates if you use Google Earth and zoom in on your home. Ensure that the latitude shows N and not S and that the longitude shows W and not E. Many receivers will default to E (east) because they are manufactured in Europe or Asia and they just stick with what is natural to them.
After viewing your settings in a previous post from you, I believe that you have them correct, but just to be certain, make sure that the LNB or L.O. frequency is set to 10.750 GHz (10750 MHz).
Now, you must ensure that the satellite that you are seeking is registered in your satellite list. Is Galaxy 19 listed when you open your dish setup menu? Is it mapped to be at 97.0°W? If it is NOT there you will have to manually enter it to re-register the sat in your list. If it is NOT shown to be at 97.0°W, you will have to reset its orbital position to reflect that it is. I assume that you know your Viewsat receiver well enough to manage these changes if they are necessary. If not, you need to ask a member (who is more familiar with the Viewsat than I am) regarding how to navigate the menus to get this task done.
The next thing you need to do is to ensure that at least one STRONG or HOT transponder is included in the list under this satellite. I don't know if this TP is the strongest, but it is a guaranteed active one that is STRONG... 12152 MHz, Horizontal, with symbol rate 19997 (20,000).
This is the Al Jazeera TP and it is always active and provides a good signal so you can be assured that it is always consistent and reliable.
If you were originally using USALS and the dish/motor alignment has not changed mechanically, then you should be able to just command the receiver to drive the motor right to the sat and the signal should just POP right in for you. However, if you were using DiSEqC 1.2 to control your motor, then you will need to step the motor to align the dish with the satellite. If you have some idea where your dish is aimed at currently, you can at least judge which direction to step the motor and about how far. I think you stated that you knew where Nimiq 1 at 91W was, so you have to step the motor west of there 6 degrees.
Monitor your signal quality while TP 12152 H is selected and step the motor slowly. Step it and then stop and wait 2-5 seconds, check the signal and then step it again and check the signal. Repeat this until you detect a really strong response on your receiver's quality meter.
You can monitor the signal level meter to assist you. When you are getting CLOSE to any signal, the signal meter should rise. But, you must rely upon the QUALITY meter to know when you are on the desired TP signal. You are looking for a LOCK on 12152 H so the quality meter should register a very strong level when you align with it.
The signal level meter will register a stronger reading whenever you align to any signal even if it is not the correct one, but you can utilize this indication to know when you should slow down in your stepping search and then start monitoring the quality meter more closely. Many receivers have user selectable step increments or speeds. If you see that the signal level is rising high, select the slower step speed or smaller step increment and start watching the quality meter for an indication of a strong signal. If the quality meter doesn't respond, or if it doesn't read a really HOT signal, then you are not there yet or you went past it or your dish/motor is not very well aligned.
RADAR