TK-780/880 Specifications
 
TK-780
TK-880
General 
Frequency range
         Type 1
         Type 2
         Type 3
 

      146-174 MHz        
      136-174 MHz
 

         450-490 MHz
         470-512 MHz
         400-430 MHz
Systems (Trunked Mode)
Max 32
Groups (Trunked Mode)
Max 250
 
Channels
Trunked/Conventional
Max 600/Max 250
 
Channel Spacing
Wide
Narrow
 
25 KHz, 30 KHz
12.5 KHz 15 KHz

25 KHz
12.5 KHz
PLL step 1.5, 2.5, 5, 6.25, 7.5 KHz 
Operating Voltage
 
13.6 VDC +- 15%
 
Current Drain
Standby
Receive
Transmit
 
Less than 0.4A
Less than 1.0A
Less than 8.0A
 
Duty Cycle
 
Transmit 20%
 
Operating Temp range
 
-22deg F to +140deg F(-30deg C to +60deg C)
Frequency stability +-0.00025%(-22deg F to +140deg F) 
Antenna impedance
 
50 ohms
 
Channel Frequency spread
Type 1
Type 2
Type 3
 
28 MHz
26 MHz
 
40 MHz
27 MHz
30 MHz
 
Dimensions (WxHxD)
 
5-1/2 x 5-3/4 x 1-1/2 in (140 x 145 x 40 mm)
Weight (net) 2.07 lbs. (940 g) 
FCC ID
Type 1
Type 2 
Type 3
 
ALH24583110
ALH24583120
 
ALH24593110
ALH24593120
ALH24593130
 
FCC compliance
Type 1
Type 2 
Type 3
 
FCC parts 22,74,80,90
FCC parts 22,74,80,90
 
FCC parts 22,74,90,95
FCC parts 22,74,90
FCC part 90
 
IC certification
 
282195512A
 
282195511A
RECEIVER (Measurements made per EIA/TIA-204-D) 
Sensitivity 12 dB SINAD
 
0.25 uV
   
Selectivity
Wide
Narrow 
-80 dB
-70 dB 
-80 dB 
-67 dB 
Intermodulation distortion
Wide
Narrow 
-75 dB
-65 dB 
-75 dB
-65 dB 
Spurious response
 
-90 dB
 
-85 dB
 
Audio output
 
4 W with less than 5% distortion
TRANSMITTER (Measurements made per EIA/TIA-204-D) 
RF power output
 
25 W
 
25W
 
Spurious reponse
 
70 dB
 
Modulation
Wide
Narrow 
16K0F3E 
11K0F3E 
FM noise
Wide
Narrow 
50 dB
45dB
Audio distortion Wide/Narrow Less than 3% / Less than 5%
Microphone Impedance 600 ohms