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Operator’s Manual • Use under Special Conditions
6076.0822.12.01 – 3.3 –
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Depending on the option codes, the external devices connected at the Comline and the cur-
rently active radio mode, one or several of the following communication modes are available:
q Voice / Data Unciphered (V/D UNCP):
The communication mode V/D UNCP is used for narrowband AM and FM voice commu-
nication. The keyline selected by PTT mapping is used. Narrowband audio lines NB1 and
NB2 are available. Audio line NB1 should be used by preference.
q Wideband Analog (WB ANALOG)
The communication mode WB ANALOG is used for wideband AM and FM communica-
tion with analog data terminals (only baseband). The keyline selected by PTT mapping
is used. Wideband audio lines WB1 and WB2 are available. Audio line WB2 should be
used by preference.
q Wideband Digital Baseband (WB DIGITAL BB) and
Wideband Digital Diphase (WB DIGTAL DP)
The communication modes WB DIGITAL are used for data communication (ASK, FSK)
with digital data terminals (baseband and diphase). Carrier activation for transmission is
carried out via keyline PTT_1, and the digital data are transmitted via wideband audio line
WB1.
q Link 11 (LINK 11)
The communication mode LINK 11 is used for data communication with Link 11 data ter-
minals. Carrier activation for transmission is carried out via keyline PTT_2, and the data
are transmitted via narrowband audio line NB2.
q Voice / Data Ciphered (V/D CP)
The voice encrypted by Cipher Unit KY 58 is transmitted via wideband audio line WB1.
Carrier activation for transmission is carried out via keyline PTT_1L. The KY 58 and the
M3SR Transceiver are interconnected via the following signals:
The following table illustrates how the radio operation mode is related to the communication
mode:
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• CGC (cipher ground control) • BB/DP (baseband / diphase)
• DPTT (delayed PTT) • ZEROIZE
• PT/CT (plain text / cipher text)
Radio operation
mode
Communication mode
V/D UNCP WB
ANALOG
WB
DIGITAL BB
WB
DIGITAL DP
LINK11 V/D CP
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