Toshiba FT-8800, Service Manual

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49
BASE UNIT
RECEIVER
1. Sensitivity 12 dB SINAD
with CCITT Filter
2. Frequency Response (Ref:1kHz) 0.3kHz
3.0kHz
3. Distortion at 1 mV RF Input
4. S/N ratio at 1 mV RF Input
with CCITT Filter
5. Selectivity (NQ20dB) 6dB Ban
6dB Bandwidth -
6. Image Rejection Ratio SINAD 12dB with CCITT Filter
1st Image
2nd Image
7. Tel Line Output Level (600
Ω
Load) (Dev: 8kHz)
TRANSMITTER
1. RF Power (50
Ω
Load)
2. Modulation Sensitivity (Dev: 8kHz)
3. Frequency Response (Ref:1kHz)
0.3kHz
3.0kHz
4. Frequency Tolerance (25°C)
5. Code Deviation
6. Distortion
7. Adjacent CH Power
(+)
(-)
8. S/N Ratio with CCITT Filter
TELEPHONE LINE
1. Off-hook Impedance (at 1kHz)
2. Off-hook DC Resistance (DC 40mA)
3. On-hook Impedance 20Hz (75Vrms)
4. Minimum Ringer Input Level
5. Pulse Dialing
a. Dialing Rate (@10pps)
b. Make Ratio (@10pps)
6. DTMF Output (@600
Ω
Load)
a. Minimum Level of Single Tone
Low Group
High Group
b. DTMF Level
c. DTMF Frequency
Row 1
Row 2
Row 3
Row 4
Column 1
Column 2
Column 3
d. Signal Length
e. Interdigital Pause
UNIT
dBm
dB
dB
%
dB
kHz
kHz
dB
dB
dBm
UNIT
dBm
dBm
dB
dB
Hz
kHz
%
dB
dB
dB
UNIT
OHM
OHM
kOHM
Vrms
pps
%
dBm
dBm
dBm
Hz
Hz
Hz
Hz
Hz
Hz
Hz
mSec
mSec
NOMINAL
-115
-4.5
-6.0
1.5
70
15
15
35
55
-11
NOMINAL
-7.0
-15.0
-3.5
3.5
0
8.0
1.5
55
55
35
NOMINAL
1000
250
25
23
10
39
-7
-5
-3
697
770
852
941
1209
1336
1477
100
100
LIMIT
< -107
-8.5~-0.5
-10.0~-2.0
< 5
60 <
10 <
10 <
30 <
30 <
-14~-8
LIMIT
-10.0~-4.0
-19~-11
-6.5~-0.5
+0.5~+6.5
-2500~+2500
< 11
< 5
50 <
50 <
30 <
LIMIT
500~1500
100~300
10 <
< 40
8~11
36~42
-10 <
-8 <
< 0
687~707
759~781
840~864
927~955
1191~1227
1316~1356
1455~1499
90 <
90 <