Ericsson LBI-38701, Maintenance Manual

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Decrement Tone (6)
The (6) command decrements the tone number to the
previous GEMARC tone. If tone zero is displayed then the
tone wraps around to 42.
Reset To Tone 00 (9)
The (9) command resets the tone number to 00.
Push-To-Talk (PTT)
When the Push-To-Talk button on the side of the
handset is pressed a serial character is sent to the radio. The
handset reports when PTT has been pushed and also when
PTT has been released. PTT keys the radio.
THREE KEY FUNCTION TESTS
The following tests require that a three key format be
entered.
Transmitter On (FCN 0 1)
The FCN 0 1 function checks the lock detect line of
the synthesizer and displays [ UNLOCK ] if the synthesizer
is out of lock. Otherwise the radio displays [ XMITON].
The transmitter is keyed at the specified frequency or
channel regardless of whether the radio is in the "locked"
condition. The transmitter will remain keyed and the IN
USE status indicator displayed until any key is pressed.
This function allows the user to not have to press the PTT
button continuously during testing.
Receive Audio On (FCN 0 2)
The FCN 0 2 function displays [ RXAUDON] and
turns the received audio on regardless of the carrier or tone
detect status.
Receive Audio Off (FCN 0 3)
The FCN 0 3 function displays [ RXAUDOF] and
turns the receive audio off regardless of the carrier or tone
detect status.
Microphone Audio On (FCN 0 4)
This FCN 0 4 function displays [MICAUDON] and
transmits the signal present on the mic audio path during
transmit.
Microphone Audio Off (FCN 0 5)
The FCN 0 5 function displays [MICAUDOF] and
disables the mic audio path during transmit.
Transmit Standard Busy Tone (FCN 0 6)
The FCN 0 6 function checks the lock detect line of
the synthesizer and displays [ UNLOCK ] if the synthesizer
i s o u t o f lo c k. Ot he r wise t h e r ad io will di spla y
[STDBSYON]. The transmitter is keyed regardless of an
"unlock" condition and continuously transmits the 3051.6
HZ standard busy tone. Pressing any key unkeys the trans-
mitter.
Transmit Alternate Busy Tone (FCN 0 7)
The FCN 0 7 function checks the lock detect line of
the synthesizer and displays [ UNLOCK ] if the synthesizer
is out of lock. Otherwise the radio displays [ALTBSYON].
The transmitter is keyed regardless of an "unlock" condi-
tion and transmits the 2918.7 HZ alternate busy tone.
Pressing any key unkeys the transmitter.
Transmit GEMARC Tone ( FCN 0 8)
The FCN 0 8 test prompts the user for the GEMARC
tone to be transmitted with the [ TONE?] prompt. The user
then enters the number 00 - 42 of the GEMARC TONE (00
- 42). If the tone number specified is valid the radio checks
the synthesizer lock and then immediately keys the trans-
mitter and sends the tone (even if an "unlock" condition
exists). If tone 00 is specified the radio will transmit mi-
crophone audio only. Pressing any key unkeys the trans-
mitter.
NOTE
During normal operation an UNLOCK condition
prohibits the transmitter from being keyed.
LBI-38701
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