Kenwood R-5000 User Handbook

LEVEL CONVERTER
The IF-232C level converter can be purchased from dealers for around $100. This
device converts the TTL levels that the R-5000 uses to RS-232 levels that a terminal or
personal computers uses. One end plugs into the ACC connector on the back of the receiver.
The other end plugs into the RS-232 connector on the PC (usually labeled COM1:). Figure 6
shows a schematic for a simple version that runs off an external 5-15 VDC supply. The parts
can be purchased from most mail order parts stores (see appendix A) or your local Radio
Shack. I estimate the cost should be less than $10-$15 depending on how you package the
project. A wall transformer works well for the power supply. Make sure it is around 5-15 volts
DC and not 5-15 volts AC.
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Kenwood R-5000 Specifications

General

Modes	AM, FM, SSB, CW
Impedance	50 ohms
Frequency stability	±100 Hz
Memory Channels	100
Sensitivity	0.5 μV (SSB)
Selectivity	6 kHz (AM)
Power Supply	13.8 V DC
Image rejection	70 dB
IF rejection	80 dB
Output	1.5W at 8 ohms