E F Johnson Company 2425180 사용자 설명서
TRANSCEIVER PROGRAMMING
3-17
September 2001
Part No. 001-5100-001
Transmit Power
This fixes the transmit power on the channel for
the high or low level or allows it to be switch select-
able (the Hi/Lo Power option switch is then required).
Selectable power is not available with 800 MHz
models (Section 2.6.10).
able (the Hi/Lo Power option switch is then required).
Selectable power is not available with 800 MHz
models (Section 2.6.10).
Tx Time-Out
This enables or disables the time-out timer on the
channel. The time-out timer time is programmed in the
conventional system General screen (Section 2.4.10).
conventional system General screen (Section 2.4.10).
Busy Channel Lockout
Off = disabled, Noise = transmit disallowed if
carrier is detected, Tone = transmit allowed only if
correct Call Guard code is detected (Section 2.6.5).
correct Call Guard code is detected (Section 2.6.5).
Coded Squelch
This sets the transmit and receive Call Guard
(CTCSS/DCS) coding, if any, used on the channel. If
“None” is selected, no code is transmitted and carrier-
controlled squelch is used when receiving (Section
2.6.6). The standard Call Guard tones and codes are
listed in Table 3-1 located on page 3-29.
“None” is selected, no code is transmitted and carrier-
controlled squelch is used when receiving (Section
2.6.6). The standard Call Guard tones and codes are
listed in Table 3-1 located on page 3-29.
Signaling
Off - No ANI signaling is used.
Leading ANI - A DTMF-coded ID is sent at the
beginning of each transmission. This ID is set in the
radio-wide conventional screen (Section 2.6.15).
beginning of each transmission. This ID is set in the
radio-wide conventional screen (Section 2.6.15).
Trailing ANI - A DTMF-coded ID is sent at the end
of each transmission.
of each transmission.
Channel Modulation
This selects if the channel modulation is wide-
band (5 kHz), narrowband (2.5 kHz), or NPSPAC (4
kHz). NPSPAC (public safety) modulation applies to
800 MHz models only.
kHz). NPSPAC (public safety) modulation applies to
800 MHz models only.
Tx Strapping Mode
NOTE: See Section 2.6.17 for more information.
Clear - All transmissions on the channel occur in the
clear (unscrambled) mode.
clear (unscrambled) mode.
Coded - All transmissions on the channel occur in the
secure (scrambled) mode selected by Coded Options.
secure (scrambled) mode selected by Coded Options.
Switched - The clear or secure status of the channel
is selected by the Clear/Secure option switch.
is selected by the Clear/Secure option switch.
Secure Options
These options select either the Transcrypt 460 or
SecureNet™ DES type of secure communication
when either the coded or switched strapping mode is
selected.
when either the coded or switched strapping mode is
selected.
Tx DES/DES-XL - Selects either DES or DES-XL
encryption protocol.
encryption protocol.
Rx AutoDetect - With the SecureNet protocol, select-
ing “Secure” enables automatic detection of
encrypted receive signals. This may increase the
response time of the radio to an incoming signal.
Selecting “Proper Key” causes the radio to search the
available SecureNet keys until it finds a match for the
current transmission.
ing “Secure” enables automatic detection of
encrypted receive signals. This may increase the
response time of the radio to an incoming signal.
Selecting “Proper Key” causes the radio to search the
available SecureNet keys until it finds a match for the
current transmission.
Encryption Key - Selects the encryption key from
0-15 that is used on the channel. This refers to the
hardware location in the radio of the real key.
0-15 that is used on the channel. This refers to the
hardware location in the radio of the real key.