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TS-780 SPECIFICATIONS
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GENERAL
Frequency Range.. .....................................
.144.0~
146.0 MHz
430.0
~
440.0 MHz
Mode ........................................................ SSB (USB, LSB), CW, FM
Antenna impedance ..................................
..5 0 9 (144 MHz, 430 MHz)
Voltage Requirements ................................
..22 0 V AC,
50/60.
Hz
13.8 V
DC&l5%
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:
149
FETs: 35
ICs:
41
Diodes: 195
Dimensions.. .............................................
.290
(W) x 124 (H) x 322 (D) mm
(1 1
“-7/16)x
(4”.7/8)x
(12”-5/8)
Weight.. ................................................... .lO.l kg (22.2
Ibs)
TRANSMITTER SECTION
RF Power Output
........................................
SSB, CW, FM: 10 Watts
FM (LOW): Approx. 1 watt
Modulation ............................................... .SSB:
Balanced modulation
FM: Variable reactance frequency shift
Maximum frequency deviation (FM) ...............
f
5 kHz
Carrier Suppression ..................................... Better than 40 dB
Unwanted Sideband Suppression .................. .Better than 40 dB
Spurious Radiation .................................... ..Bette r than
-
60 dB
Microphone
Impedance
...............................
,500
~
600
Q
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 MHz or
-
1.6 MHz (430.0-440.0 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: 30.865 MHz
2nd: 10.695 MHz
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 kHz (-6 dB)
4.8 kHz
(-60
dB)
FM: 14 kHz (-6 dB)
30 kHz
(-
60 dB)
Circuit and ratings are subject to Change without notice for improvement.
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