You can download a PDF file via the Motorola web site. This will show what they claim the pots control. I do not have the web-site but I have used it in the past. You will have to download the specific type amplifier manual-PDF to get the info from the manual.
For what it is worth, the MDR board that they supply info for (interstage tilt board with signature correction controls), are not completely exact in all instances. As a matter of fact, they had a SIGNIFICANT problem in NEW 870-MHz response boards in their Mini-Bridgers and had a "HUMP" that could not be removed....Motorola couldn't even do it on site. They ended up changing out hundreds of field units because of a "wrong MDR board" in one system I was involved with. This DID correct the problem, but, they won't admidt any problems existed if you asked. They also had problems with specific MB hybrids as well that they had to change due to a bad hybrid manufacturer in Germany. This hybrid would fail without notice and is a BLACK color in the secondary stage I believe.
The best way to figure out what controls do what, I suggest that you put one on a bench and experiment. A few hours on the bench will save 100's of hours in the field.
Good Luck!
Re: Pots on GI gear
Member #: 7190
Registered: 1996-2001
Posted:
483
Name:
Greg Tobin
Name:
Greg Tobin
Company:
Interactive Broadband Technical Services
Occupation:
HFC Engineer/Consultant
Location:
www.interactive-broadband.com
Personal:
Experience:
~45 years
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