To adjust the 5 band equaliser. Move the cursor along until it flashes beneath the frequency
required.
If you wish to set the value to 0 (flat), simply press the 0 key, note the cursor automatically steps to
the next window.
Or using the + or – keys will lift or cut the value b14 and –14.
Input surveillance and busy relay output.
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| IN 08|VOL|HP|BASS|600|1K0|2K5|TREB|MODE |
| | 00|00| +12|-12|+06|-06|+12 | 00 |
------------------------------------------
↑
Mode 00 Input surveillance off. Busy output off.
Mode 01 Input surveillance on. Busy output off.
Mode 02 Input surveillance off. Busy output on.
Mode 03 Input surveillance on. Busy output on.
If this input channel is used for an emergency message or microphone the signal path should be
under surveillance and mode 01 or 03 should be used. This will enable associated input channel
faults.
Each output channel has a volt free change over relay contact that may be used to operate external
busy indicators but is only active when modes 02 or 03 are selected.
To set the mode. Move the cursor along until it flashes beneath the MODE window and using the
numbered keys enter your choice 0 to 3.
7.
Press the Page down key again.
The display will step to the 2
nd
page, current attenuator, compressor and chime settings for input
channel 8
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| IN 08|ATTENUATOR| COMPRESSOR |CHIME |
| |.00|....00|Off |Off |
------------------------------------------
| fine | coarse |
The maximum input sensitivity without attenuation is 80mV (-20dBM). However the gain may be
reduced using a fine and coarse attenuator.
The fine provides 15dB of attenuation in approximately 1dB steps and the coarse provides 30 dB
in 2dB steps. Setting the attenuator correctly will prevent overloading the input stage and easier
adjustment of the system.
If an input of 775mV (0dBm) is required than simply attenuate the input by 20dB by setting the
coarse to 09.
To set the input attenuator, move the cursor along until it flashes beneath the desired attenuator
window.
Values between 0-9 may be entered directly using the numbered keys. Note the cursor
automatically steps to the next window. Or using the + or – keys will increase or decrease the
value between 00 (no attenuation) and 15 (maximum attenuation)
Input dynamic compressor or limiter may be introduced to prevent overloading and assists in
maintaining a constant output volume if several operators use a microphone or music with wide
