The display of microphone type (lower right side) is done upon activation of the microphone menu.
When an Electret microphone is recognized, the values used are the one that were saved upon leav-
ing the menu.
The MIC submenu is terminated by pressing the AUD button.
Additional indications
Additional indications for test purposes:
• RxS : RF receiver input level (from Automatic Gain Control)
• Ext : External audio input voltage
• Mic : d (dynamic) or s (standard)
The microphone type is displayed when the microphone menu is entered.
This Symbol appears on right side of STBY Frequency in AUTO-mode if the dynamic microphone
has been recognized and activated after transmission. In that case the intercom voice triggering level
VOX is set to 10 (switched off).
To reactivate the intercom after a microphone change, a short press of the PTT is required.
4.4.12 Menu lock
For school operation the menus area TXm to MIC-setup can be locked.
To lock or unlock the button combination AUD & FREQ has to be pressed simultaneously for > 2 sec-
onds.
In lock condition there will be displayed an “L” at the right end of the third line.
To store those condition the setting of SQnn should be changed before turning off.
VOL SQ VOX TXm INT EXT DIM CON SIT MIC
Available Locked and not available
Table 8: KRT2 Menu Lock
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