FILE: IP 100 Service manual.doc 2004.05.01
E-TECH Co., Ltd 18/19
6-2 Voltage Check
1) Set up the radio frequency to (136.025[Mhz]) then measure whether R/Tx voltage is over 0.8[v].
2) Set up the radio frequency (173.975[Mhz]) then measure whether R/Tx voltage is under 5[v].
3) When Un-Lock is display on LCD means defective goods.
6-3 Transmitter
1) At the frequency range of (146.025[MHz]), set up Tx mode then adjust frequency by using VR 301 at the
level of ±150[Hz]. High power should be 3.8~5.5[W]. In case of out of this range, you can check whether
current is under 2A then adjust at the level of 4.5W by using VR501.
Low power should be
1[W] ±0.2[W]. In case of out of range, you can adjust it by using VR502.
FM DEVIATION should be adjusted at the level of 2.1[khz] ±0.1[khz] by using VR303.
Low frequency input is 1[kHz],50[mV].
2) After you set up MOD at the frequency range of (146.025[MHz]), adjust TONE DEVIATION by using VR
302 at the level of 0.45[kHz] ±0. k05[zH] .
6-4 Receiver
,
Set up Receiving Mode at (SSG -60d[Bm]). At the frequency range of 146.025[MHz], FM 1.5[kHz], adjust
Volume at (0.5[W]). Sensitivity at the level of 12[dB] SINAD, check whether it is under -119[dBm]., and
SQ(LEVEL8) is between -117[dBm] ~ -123[dBm by using VR101. In case of out of range, adjust it at
120[dBm].
6-5 Wideband specification check
At the frequency range of (146.025[MHz]), you have to check whether FM DEVIATION should be (3.6 ~
4.8[kHz]), in case of 1G-4(146.025[MHz]), TONE DEVIATION should be (0.5~1.2[KHz]). Also, you have to
check whether in case of 1G-2(146.025[MHz]), sensitivity should be (12[dB] SINAD, -119[dBm]). SQ
sensitivity is between -116[dBm] and -124[dBm.
6-6 FINAL(QC) Inspect specification
1) 156.025[MHz] Narrow
a. Frequency : ±300[Hz]
b. Output power(L/H) : 0.7 ~ 1.2[W] / 4 ~ 5.6[W]
c. FM DEVIATION(Narrow) : 1.8 ~ 2.5[kHz](1[kHz], 50[mV])
d. TONE DEVIATION : 0.3 ~ 0.6[kHz]
e. Sensitivity : < -117[dBm]
f. SQ Sensitivity : -116[dBm] ~ -124[dBm](
2) 156.025[MHz] Wide band
a. FM DEVIATION(Wide band) : 3.8 ~ 5.0[kHz](1[kHz], 50[mV])
b. TONE DEVIATION : 0.5 ~ 1.2[kHz]
c. Sensitivity : < -117[dBm]
d. SQ Sensitivity : -116[dBm] ~ -124[dBm]
