SOME QUESTIONS AND SUGGESTIONS:
1.0. AF610 WEATHER RECEIVER: There may be a need to remote the Alarm TEST/RESET switch over some distance to a console or other panel. See FAQ Link AF610/Q1
2.0. FM Receivers 50 KHz Channels: There may be a need to set the receiver frequency of operation in 50 KHz steps. See FAQ Linl FM REC/Q1
3.0 FM Receivers MONO Operation: There may be a need to operate the FM Stereo receiver in the Mono mode of operation. See FAQ Link FM REC/Q2
5.0 SCA Operation: Everything you wanted to know about SCA operation: (FCC Subcarrier Information)
6.0 AFC Board Installation: If you are installing a new board in an AFC3 Chassis, this information may help. AFC3 Board Installation
7.0 Adjacent Channel Interference: In installations where adjacent channels or high level RF interference is interfering with the reception of the desired channel, a narrow reject filter may be necessary at the antenna input. There are notch, and also high pass and low pass filters available. One supplier we know of is ChrisScott and Associates www.scott-inc.com You will need to know the interfering signal frequency.
8.0 Receiver Interference: Receiver interference is usually related to distance from the transmitter. The farther the distance, the more likely interference will be present from higher power or closer stations. Our receivers have excellent rejection and sensitivity, but even 80 dB rejection can be overcome if the receiving antenna is located at or near the site of a high power transmitter and antenna. The solutions require physical separation of antennas and perhaps notch filters at the receiving antenna input. In some translater applications, the receiver is located in the same rack as the transmitter. Again, the best way to reduce interference is to get as much physical separation as possible. Removing the receiver from the rack and moving a few feet away may be all that is necessary. As always, good grounding techniques are also required.