Toshiba FT-7800A Service Manual page 50

BASE UNIT
RECEIVER
1. Sensitivity 12dB SINAD at 30 kHz Dev. (with CCITT Filter)
2. Frequency Response (Ref: 1 kHz)
3. Distortion at 1 mV RF Input
4. S/N ratio at 1 mV RF Input (with CCITT Filter)
5. Selectivity (NQ20 dB)
6. Image Rejection Ratio (12dB SINAD, with CCITT Filter)
7. Tel.line Output Level (600 Ω load)
TRANSMITTER
1. RF Power (50 Ω Load)
2. Modulation Sensitivity
3. Frequency Response (Ref: 1 kHz)
4. Frequency Tolerance (25 °C)
5. Code Deviation
6. Distortion
7. S/N Ratio (with CCITT Filter) RX_−50 dBm with no mod.
TELEPHONE LINE
1. Off-hook Impedance (at 1 kHz)
2. Off-hook DC Resistance (DC 40 mA)
3. On-hook Impedance 20 Hz (75 Vrms)
4. Minimum Ringer Input Level
5. Pulse Dialing
a. Dialing Rate
b. Make Ratio
6. DTMF Output (600 Ω load)
a. Minimum Level Of Single Tone
b. DTMF Level
c. DTMF Frequency
d. Signal Length
e. Interdigital Pause
0.3 kHz
3.0 kHz
6 dB Bandwidth −
6 dB Bandwidth +
1st Image fo−21.079544 MHz dB
0.3 kHz
3.0 kHz
10 pps
10 pps
Low Group
High Group
Row 1
Row 2
Row 3
Row 4
Column 1
Column 2
Column 3
— 51 —
Unit Nominal
−113
dBm
dB +15.0
−22.0
dB
% 1.0
dB 70
kHz 80
kHz 80
35
−13
dBm
−6.0
dBm
−20
dBm
−11.0
dB
dB 5.5
Hz 0
kHz 35
% 1.0
dB 42
ohm 1000
ohm 240
kohm 25
Vrms 24
pps 10
% 39
−7
dBm
−5
dBm
−3
dBm
Hz 697
Hz 770
Hz 852
Hz 941
Hz 1209
Hz 1336
Hz 1477
msec 100
mSec 100
Limit
< −100
+11.0 ~ +19.0
−26.0 ~ −18.0
< 5.0
> 60
> 55
> 55
> 25
−16 ~ −10
−9.0 ~ −3.0
−24 ~ −16
−15.0 ~ −7.0
+1.5 ~ +9.5
±2500
< 55
< 5
> 35
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