De-Emphasis; Ext Mic Level; Ext Mod Level; Trunking Data - Vertex VXR-1000 Service Manual

CE-22 Program Software
emphasis network, please set this parame-
ter to On.

21-4: De-Emphasis

The audio signal received by the connected
mobile (received from the base station) is
applied to the VXR-1000 via Pin 6 of J1004.
This command allows de-emphasis to be
applied (or not applied) to this audio sig-
nal, depending on the condition of the au-
dio signal as it left the mobile radio's receiver
section.
On: De-emphasis of -6 dB/Octave will be
applied to the incoming audio signal.
Off: No de-emphasis will be applied to the
incoming audio signal.
If the connected mobile applies de-empha-
sis to the audio prior to routing the audio to
the VXR-1000, please set this parameter to
Off. If the audio exits the mobile radio be-
fore de-emphasis is applied at the mobile
radio side, please set this parameter to On.

21-5: EXT MIC Level

When audio from the connected mobile ra-
dio's microphone is routed to the VXR-1000
(via Pin 8 of J1004) for simultaneous trans-
mission by the mobile and the VXR-1000,
using the mobile's microphone as the audio
source, this command allows configuration
of the VXR-1000 so as to be compatible with
the expected microphone audio level.
High: The input level is between -18 dBm
and 0 dBm.
Low: The input level is between -44 dBm
and -18 dBm.

21-6: EXT MOD Level

When receiver audio from the connected
mobile radio is routed to the VXR-1000 (via
Pin 6 of J1004), this command allows con-
figuration of the VXR-1000 so as to be com-
patible with the expected receiver audio lev-
el.
High: The receiver audio level is between -
18 dBm and -2 dBm.
Low: The receiver audio level is between-
36 dBm and -18 dBm.
22
21-7: Band
This parameter must be set for the band on
which the VXR-1000 is transmitting.
21-8: COM Port
Set this parameter for the COM port you will
use for data uploading and downloading.
Either COM1 or COM2 may be used.

21-9: Trunking Data

When the connected mobile radio is config-
ured as a trunked radio, the VXR-1000's tim-
ing parameters must be compatible with
those used in the trunking system in use.
The default values are:
E-TX Time:
PTT2 Detector Time: 200 ms.
Connect Wait Time:
Waiting Time:
These parameters may be modified, if nec-
essary, per the information presented below.
E-TX Time:
This is the length of the PTT signal sent to
the trunked mobile in response to a connec-
tion request from the portable radio.
PTT2 Detect Time:
This is the length of the Mobile TX Detect
response signal sent to the VXR-1000 from
the trunked mobile in response to a success-
ful trunking request.
Connect Wait Time:
This is the length of time which the trunked
mobile will wait between connection re-
quests to the trunking system.
Waiting Time:
When the trunking system has successfully
initiated a connection with the connected
mobile radio, the connection acknowledg-
ment tone will be sent from the trunked
mobile, via the VXR-1000, to the portable.
The portable must then respond with its ini-
tial transmission within the time window set
via this parameter, or else the connection to
the trunking system will be terminated (to
avoid tying up the system).
Try Counter:
200 ms.
4800 ms.
2000 ms.