WisyCom MRK960 User Manual page 15

MRK960 dual true diversity receiver
Cal. tone
The CALIBRATION TONE function generates a tone (at specific frequecies) or a sweep of tones at the audio
outputs. Change the value of the following parameters according to the desiderable calibration tone:
M ode: select the type of calibration tone (Tone/Sweep)
»
O ut: select the outputs for the calibration tone (only LINE, only COM or LINE and COM together)
»
L evel: select the level (-6 dBFS or -26 dBFS)
»
F requency (only for Tone): 444/442/440/1000Hz
»
F req step (only for Sweep): ocatve ÷ 1/24 octave
»
T ime step (only for Sweep): 1sec/100ms
»
With the buttons it is possible to start, stop and exit from the tone generation. The output not selected for the
tone generation will be muted.
When the tone is active at least in one output, the led bar of the deviation indicates the level selected.
Frequency diversity
This option is normally set to OFF. Set to YES when you need:
• • to increase the reliability in case of failure
• • to increase the reliability in case of transmitter batteries empty
• • to increase the security against fading due to reflections on the radio link
When a receiver is set to frequency diversity YES, the audio output is calculated from the best RF signal re-
ceived from the two receivers.
WARNING: two transmitters tuned with the two receivers must be placed on the same audio source and must
have the same configuration (ex. gain, tone squelch setting, RF power, distance from the audio source....).
NOTE: the Noise reduction can be different.
Note: Frequency diversity in each receiver can be set independently.
Note: With frequency diversity enabled (set to YES), the Tone Squelch menu allows only the setting op-
tions ON and OFF (the ADV option is not allowed).
Frequency diversity example:
RX1 tuned on f1 with Frequency Diversity set to YES.
RX2 tuned on f2 with Frequency Diversity set to NO.
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