Tx/Rx Frequency - Kenwood TKR-750-850 Function Reference

1 BASIC OPERATION
Table 1-2 Assigning signals to 25-pin connector
Pin
Pin name Input/output
number
1 NC ---
2 RXD2 Input
3 TXD2 Output
4 AUXI 1 Input
5 AUXI 2 Input
6 AUXI 3 Input
7 DG ---
8 TD Input
9 TA Input
10 RD Output
11 RA Output
12 RXG ---
13 SPM Input
14 NC ---
EXT.
15 Input
MON
16 EXT. PTT Input
17 SC Output
18 NC ---
19 TXG ---
20 AUXIO 1 Input/output
21 AUXIO 2 Input/output
22 AUXIO 3 Input/output
23 AUXIO 4 Input/output
24 AUXIO 5 Input/output
25 AUXIO 6 Input/output
Table 1-3 Assigning signals to the 15-pin connector
Pin
Pin name Input/output
number
1 SB Output
2 SB Output
3 NC ---
4 GND ---
2
Description
No connection
PC serial data input
RS-232C Level/Polarity
PC serial data output
RS-232C Level/Polarity
CMOS Input
CMOS Input
CMOS Input
Digital GND
Transmitted data input
Transmitted audio signal
input
Received Detect signal
output
Received audio signal
output
RX GND
Speaker Mute input
Mute "L"
No connection
External Monitor Switch
input
Monitor "L"
External PTT Switch
input
PTT ON "L"
Squelch Control output
BUSY "L"
No connection
TX GND
CMOS Input/Output
CMOS Input/Output
CMOS Input/Output
CMOS Input/Output
CMOS Input/Output
CMOS Input/Output
Description
Output voltage
10.8 - 15.6 V:
1 A maximum
Output voltage
10.8 - 15.6 V:
1 A maximum
No connection
Ground
Function Reference (FUNC)
Pin
Pin name Input/output
number
5 GND ---
6 SPG ---
7 RD Output
8 RSSI Output
9 SPI Input
Auxiliary
10 Output
output 1
Auxiliary
11 Output
output 2
12 SPO Output
Auxiliary
13 Output
output 3
Auxiliary
14 Output
output 4
Auxiliary
15 Output
output 5
Note: Refer to the "Modification Information" for the detailed
information.
1.2

TX/RX Frequency

This is a frequency pair used for transmitting and
receiving. The value differs corresponding to the area,
where a repeater is used.
Table 1-4 Transmission/Reception Frequency, Step
Transmission/Reception Frequency
Model Type
Range [MHz]
TKR-751 K 146 - 174
K 450 - 480
TKR-851
K2 480 - 512
You can program a transmission frequency and a
reception frequency of TKR-750/850/751/851 to each
channel.
! Configuration of KPG-91D
" Configuring a transmission frequency and a
reception frequency to a channel
(Refer to FPRG 6.2.1 Reception Frequency and
6.2.2 Transmission Frequency.)
Description
Ground
Speaker ground
Received Detect output
RSSI signal output
Internal Speaker input
Open collector
Open collector
External Speaker output
(4 W/ 4Ω)
CMOS Output
CMOS output
CMOS output
Step [kHz]
2.5/ 5/ 6.25
5/ 6.25
5/ 6.25
Version: 1.01 USA