All Things Kenwood
Microphone Connection Basics
Kenwood rigs present relatively few problems in interfacing to Heil products. Kenwood HF transceivers have long been designed for dynamic microphone inputs, so the microphone amplifier stages have plenty of gain to accommodate the wide range of Heil dynamic microphones.
Pin Connections
8-pin Round (All Models)
Pin 1: Mic
Pin 2: PTT
Pin 7: Microphone Ground
Pin 8: PTT Ground
4-pin Round (TS-120/130/700/520/530/820/830, TR-2200/7200/7400/7500)
Pin 1: Microphone In
Pin 2: PTT
Pin 3: PTT Ground
Pin 4: Ground
8-pin Modular (TS-480, VHF/UHF Mobiles)
Pin 3: Ground
Pin 4: PTT
Pin 5: Microphone Ground
Pin 6: Microphone In
HT 3-pin 3.5 mm Plug (All VHF/UHF HT except TH-F6/7*)
Tip: +4V
Ring: Microphone In
Shaft: PTT
Note: Ground is sourced from the shaft of the 2.5 mm plug.
Heil Sound is investigating interfacing issues on these models at the present time.
DSP and Microphone Settings
Several Kenwood rigs have DSP and other settings that will allow the operator to adjust the response of the radio to your speech input from the microphone. These are easy to adjust in seconds.
It is impossible for us at Heil Sound to know what settings will sound "best" on your voice, in your station environment, with your microphone, for your interest (DX, Contest work, rag-chewing, or maximum fidelity) The recommendations below are just starting points; listen to yourself in a separate receiver (with its antenna disconnected) to determine what sounds best in your unique situation.
TS-950SDX
Menu 20 (DSP 1 HPF): 100
Menu 21 (DSP 1 LPF): 3100
TS-570
Menu 13 (Bandwidth): 2.4 kHz
Menu 14 (TX EQ High Boost): H
Microphone Gain: 50 (Default Level)
TS-870
Menu 29 (Bandwidth): 3000 Hz
Menu 30 (Bandshift): 0 or 100
Menu 31 (TX EQ): H or C
Menu 32 (RCV EQ): C or Off
Microphone Gain: 50 (Default Level)
Menu 22 (Mic AGC): 1 (but try 0 and 2)
TS-2000
Menu 22 (Bandwidth): 3000 Hz
Menu 21 (TX EQ): H or C
Menu 20 (RCV EQ): C or Off
Microphone Gain: 50 (Default Level)
For best results please consult your manual.