Stone Mountain Overlord User Manual

overlord PRC/MBITR Military Speaker Microphone User Manual
Stone Mountain
Connecting the Speaker Microphone (SM):
1. Turn off the portable radio.
2. Gently wipe the contacts on the radio accessory connector with
a clean, dry, soft cloth.
Carefully align and attach the SM's connector to the portable radio's
3.
accessory connector. Misalignment and/or rough handling during
attachment may cause damage to the connector pogo pin contacts,
resulting in SM malfunction.
Tighten the mounting screw (if applicable) on the SM's connector to
4.
secure it to the portable radio. Be careful not to over tighten.
Operating the Speaker Microphone
Transmitting Audio (Tx)
To transmit audio, depress the large PTT button and speak into the
microphone opening near the top left side of the SM. Release the PTT
button when finished transmitting.
Receiving Audio (Rx)
Incoming audio will automatically be received via the SM speaker.
Receive Audio Volume Control
Receive audio volume is adjusted using the button directly below the PTT. Pressing the button toggles between Hi and Lo
volume. Note the button does not change position between Hi and Lo, nor is there any audible click. The change in volume is
about 10 dB between Hi and Lo.
TM
Optional CallCheck (CC) Receive Audio Record, Store and Playback System
Communicate with optimum efficiency and confidence using the patented CallCheck
units will have a blue colored top button.
To record:

Quickly double-click the CC button. Note, an Rx transmissions must have occurred prior to recording.

Each new Rx transmission is stored in cache memory. As such, you can record anytime during or after the last Rx
transmission and up to the next Rx transmission (double clicking the CC button will record the last Rx transmission). In
either scenario, the entire Rx transmission will be recorded and stored.

You will hear a high pitched "beep" after a successful record.

You will hear a lower pitched "boop" after an unsuccessful record. An example of an unsuccessful recording attempt
would be if you double-clicked (record) without receiving a new Rx transmission since the last stored transmission.

Record time limit is about 2.5 minutes (2'30").

The message will be stored until:
o
A new message is recorded and stored, which will record over the last message.
o
The radio is powered off.
o
The SM is disconnected.
o
In all cases above, the stored message is deleted.
To playback:

Note: The SM unit must be attached to the radio with power on for two (2) minutes for system configuration prior to
recording and activating the first playback. However, the unit is fully functional for Rx and Tx immediately
upon attaching to the radio.

Single-click the CC switch.

You can stop play back with a single-click.

If you single-click again after stopping playback, playback will restart at the beginning of the message.

If you are in playback and a Rx transmission is received, playback will automatically terminate and the Rx transmission
will come through the speaker. Playback can be resumed after the Rx transmission ends by a single click to the CC
button.
-over-
Stone Mountain, Ltd.
1597 Eagle Point Road
Huddleston, VA 24104
Innovation... Quality... Passion
Volume control
Effective 07Oct19
Blue button: CallCheck
Black button: No function
PTT
Audio accessory
interface
Note: Some buttons may be absent or
not active depending upon the SM
option configuration ordered.
TM
feature. Note, CallCheck
www.stonemountainltd.com
TM
TM
configured
540.297.6434