Speaker, Listen and Sense Adjustments:
These adjustments allow the
The R8 SPEAKER adjustment sets the volume level for the front door speaker. It should only need adjustment when long runs of wire to the speaker are employed. Note that the
The LISTEN adjustment sets the volume level heard through the telephone. This should be set to 75% to 80% of maximum volume. Too much gain can cause the VOX circuit (the link between the visitor at the door to the inside telephones) to switch on its own. A clockwise adjustment decreases the volume through the ear piece. The factory setting is positioned at 7 o’clock.
SENSE adjusts the sensitivity of the voice switching circuit. Depending on the set- ting, the switch may be more sensitive (responsive) to the visitor at the door or more responsive to the person speaking from the phone. In either case, if the setting is too little toward any side the speech will be "broken" and words (or parts of words) will become cut off. There is also an interplay between the listen control and the sense adjustment. If the listen adjust is set too high, it can affect the sense adjust because it is sending a level of sound from the speaker that exceeds the telephone signal. A counter clockwise adjustment decreases the amount of background noise. If set be- yond the 6 o'clock position, the
The factory settings should work well in most cases. However, wire length, outside background noise and the placement of the speaker can all affect the overall system performance making some adjustments necessary.
Speaker
3 O’Clock
Listen
7 O’Clock
Sense
3 O’Clock