God bless the guys at PCS Associates!
During the process of troubleshooting the URR-74(v)2 receivers in the radio room, we've been terribly hampered by a lack of usable documentation.
The WJ 8718 receiver is very close to the URR-74, and we were able to find manuals for that receiver, BUT all the freely downloadable manuals were poor copies made into pdf's.
The worst part was that the schematics were copied with the copier magnification improperly set, resulting in a 1"~2" "gap" in the schematic between the two pages it was spread over!
You couldn't get them to overlap so you could tape them together and get a complete schematic, and in some cases it was cut so badly that complete components and/or circuit blocks were missing.
This makes it rather difficult to follow signals on the schematic, as you're never really sure where they're going between the two pages.
I finally found a place that still supports the Watkins Johnson receivers we have aboard the Iowa, and sent an email asking how much it would cost us to BUY a real, correct copy, stating that we weren't looking for a freebie, and would gladly PAY to get the manuals.
Well, this morning I received an email from a very nice gentleman containing the details of the ftp account he set up for me so I could download the manuals they have available!
I grabbed the manuals, and have been looking at them part of the day.
They manuals are crystal clear, and all the schematics are complete, and not butchered up.
I notified our Grey Radio Gang, and we're going to be working up a nice, official "Certificate of Appreciation" for this gentleman and his company.