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RS-232 Control of the Kenwood R-5000

Interface Unit: IF-232C (converts 5V TTL to RS-232 polar)
Note: an interface kit may also be required for some Kenwood models (eg Kenwood IF-10A for TS-711/811, IF-10B for TS-940S and IF-10C for TS-140/680, IC-10 for TS-440s/R-5000- Check the requirements for your model before attempting to use RS-232)

Standard Connections Used: TXD, RXD, CTS, RTS, GND

Flow Control: Hardware (RTS/CTS)

Type of RS-232 Command Set: ASCII text, , 2-character command, variable length data , semi-colon terminator

Data Parameters: 4800 bps (fixed), 1 start, 8 data + 2 stop bits (higher data rates are supported with latest models)

R-5000 Interface

The R-5000 is the only SWL receiver currently available from Kenwood and is essentially the RX section from a TS-440S transceiver. The RS-232 command set is as follows:

Function Command
Prefix
Format
Auto Information AI As per AI table (above)
Antenna Number AN AN1; - select antenna 1
AN2; - select antenna 2
Clock CK
byte 3 bytes 4-9
1=clock1
2=clock2
hhmmss
Down/Up DN/UP DN; - decrement freq
UP; - increment freq
VFO A/VFO B FA/FB The frequency is written to either VFO A or VFO B
Frequency value is represented in Hz using 11 digits

Example: FA00007200000; tunes VFO A to
7.2MHz

Function FN 0=VFO A, 1=VFO B, 2=memory
ID ID Three columns specifying the model ID
R-5000 = 005
Information IF As per AI table (above)
Lock LK 0=off, 1=on
Memory Channel MC In two columns
Example: 02 is channel 2
Mode MD
1 =LSB 3 =CW 5 =AM
2 =USB 4 =FM 6 =FSK

Example: MD1; selects LSB mode

Memory Read MR The format of the response is as follows:
Parameter Bytes Format
Command Response 1-2 MR
Split Specification 3 -
Memory Bank 4 -
Memory Channel 5-6 Represented in 2 columns
Example: 02 is channel 2
Frequency 7-17 Frequency in Hz, in 11 columns
Mode 18
1 =LSB 3 =CW 5 =AM 7 =CWN
2 =USB 4 =FM 6 =FSK    

Note: modes supported by some models may vary

Example: MD1; selects LSB mode

Memory Lockout 19 0=note locked out, 1=locked out
- 21-22  
- 23  
terminator 24 ;
Memory Write MW See MR command for format
Power PS 0=off, 1=on
Scan SC 0=off, 1=on
Step ST 0=off, 1=on
Voice Recall VR no parameters required

Basics | Kenwood | Icom | Yaesu | AOR | At a glance

This document maintained by simon.collings@cableinet.co.uk.
Material Copyright © 2000 Simon Collings