TS-780 SPECIFICATIONS
GENERAL
Frequency Range.. .....................................
.144.0~ 1 4 6 . 0 M H z
4 3 0 . 0 ~
4 4 0 . 0 M H z
Mode ........................................................
SSB (USB, LSB), CW, FM
Antenna impedance ..................................
..5 0
(144 MHz, 4 3 0 M H z )
Voltage Requirements ................................
..22 0 V AC, 50/60. Hz
1 3 . 8 V
Power Consumption ....................................
Receive (no Signal): 45 Watts (220 V AC), 1.2 A (13.8 V DC)
Transmit: 130 Watts (220 V AC), 5 A (1 3.8 V DC)
Backup current (Battery) ............................
..Les s than 10 yA
Semiconductor Complement..
.....................
..Transistors:
1 4 9
FETs:
3 5
ICs:
41
Diodes:
1 9 5
Dimensions.. .............................................
.290 (W)
x
124 (H)
x
322 (D) m m
(1 1 “-7/16)x (4”.7/8)x (12”-5/8)
W e i g h t . . ...................................................
. l O . l
kg (22.2 Ibs)
TRANSMITTER SECTION
RF Power Output ........................................
SSB, CW, FM:
1 0 Watts
FM (LOW):
Approx. 1 watt
Modulation
...............................................
.SSB:
Balanced modulation
FM:
Variable reactance frequency shift
Maximum frequency deviation (FM) ...............
5 kHz
Carrier Suppression .....................................
Better than 4 0 dB
Unwanted Sideband Suppression ..................
.Better than 40 dB
Spurious Radiation ....................................
..Bette r than - 60 dB
Microphone
Impedance
...............................
,500 ~
600
AF Response of Transmitter (SSB) ................
.400~ 2600 Hz (- 9 dB)
Repeater Frequency Shift
-
.............................
600 kHz or + 600 kHz (144.0~ 146.0 MHz)
- 7 . 6 M H z o r - 1 . 6 M H z ( 4 3 0 . 0 - 4 4 0 . 0 MHz)
RPT Tone Frequency
...................................
1
7 50 Hz
RECEIVER SECTION
Receiver
Sensitivity
....................................
.SSB, CW:
0.2 yV for 10 dB (S + N)/N
FM:
1 yV for 30 dB (S + N)/N
0.2 yV for 12 dB SINAD
Intermediate Frequency ..............................
.l st:
3 0 . 8 6 5
M H z
2 n d : 1 0 . 6 9 5 M H z
3rd: 455 kHz (FM only)
Squelch Sensitivity.. ...................................
.O. 1
6 yV (At threshold)
Audio Output ............................................
.2.0 Watts (with less than 10% distortion) into an 8 ohm load
Receiver
Selectivity
....................................
.SSB, CW:
2 . 2 k H z ( - 6 dB)
4 . 8 k H z (-60 dB)
FM:
1 4 k H z ( - 6 dB)
30 kHz (- 60 dB)
Circuit and ratings are subject to Change without notice for improvement.
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