Was wondering if someone could help explain my lack of experience on some analog optical HE equipment.
Installed new SA Prisma Tx unit at HE and spliced in one of three fiber optic nodes in the field and noticed grain on most of the pics on our analog channels. RF input to Tx unit was around 23 Db's. I then put in a 20Db pad and increased gain on my amplifier about 20Db to give me about the same levels. Surprisingly enough pic's came in much cleaner w/ pad in place. Why? Thanks much for any inputs!
SA Prisma 6473 Rx unit
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