Tait TM8100 mobiles Service Manual page 167

Table 6.3 Final tests of receiver functions
Test
Receive sensitivity
Mute opening:
• Country
• City
• Hard
Audio power (maximum volume at –47dBm):
• At "R /SINAD" connector on test unit
A
X UDIO
• At pins 3 ( –) and 4 (
SPK
Distortion (at –47dBm, 60% rated system deviation at 1 kHz,
with volume set to give 3W into 16Ω load)
a. The output on the test unit has 10dB of attenuation switched in when the test unit
/
RX AUDIO SINAD
set to . Refer to "TOPA-SV-024 Test Unit" on page 613
MOBILE
Table 6.4 Final tests of general radio functions
Test
PTT switch
Microphone
Data communications
Direct-connect GPS
(global positioning system)
Selcall
Audio tap points and digital I/O
TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
+) of power connector on radio
SPK
Description
Check that PTT switch functions.
Check operation of microphone.
Check operation of hookswitch.
Test 1200 baud data transmission (standard).
Test Tait high-speed data transmission (if feature is enabled).
Check that GPS poll returns correct position (if feature is enabled).
Check that radio encodes Selcall.
Check that radio decodes Selcall.
Check configuration of programmed options and test operation of
these lines to confirm that Customer requirements are satisfied.
Limits
<118dBm for 12dB SINAD
>6dB and <10dB SINAD
>8dB and <14dB SINAD
>18dB and <22dB SINAD
>500mV
>5.00V
rms
<3.00%
for details.
Servicing Procedures
a
rms
/ switch is
PORTABLE MOBILE
167