Technical data

AFSK1201 Seite 10
Cable 35: Kenwood TM732A/E, TM742 A/E with MJ88 adapter 8-pin. audio screw locking line plug
and 3,5 mm ear-phone plug jack
pin 1 (MIC) ---<br>--- pin 1 (MIC)
pin 2 (GND) ---<wh>--- pin 7 and pin 8
pin 3 (PTT) ---<yel>--- pin 2 (PTT)
pin 2 (GND) ---<bl>--- 3,5 mm ear-phone plug outer contact
pin 4 (SPK) ---<gn>--- 3,5 mm ear-phone plug inner contact
Cable 36: FX440 Ramsey 70cm kit transceiver
pin 1 (MIC) ---<br>--- pin 1 (MIC)
pin 2 (GND) ---<wh>--- pin 2 (GND)
pin 3 (PTT) ---<yel>--- pin 3 (PTT)
pin 4 (SPK) ---<gn>--- pin 4 (SPK)
Cable 37: ICOM IC2WE, FT10/40/50R and similar with 3,5 mm stereo-ear-phone plug
pin 1 (MIC) ---<br>--- 3,5 mm stereo plug MIC middle contact (near outer contact)
pin 2 (GND) ---<wh>--- 3,5 mm stereo plug MIC outer contact
pin 4 (SPK) ---<gn>--- 3,5 mm stereo plug MIC inner contact
solder a 2,2 k
Ω resistor between pin 3 and pin 1 in DIN-plug
Cable 38: Alinco DJ580 connect according cable 24. Sometimes, the PTT circuit makes problems as the
transmitter keys only when PTT is pulled to ground with 470 Ohm or less. Use 220Ω in this case between
pin 1 and 3.
Cable 39: Kenwood TM255/455/451/733/V7E, Yaesu FT8100R, FT847, IC706MK2G
with 6-pin mini DIN plug for packet
pin 1 (MIC) ---<br>--- pin 1 (MIC)
pin 2 (GND) ---<wh>--- pin 2 (GND)
pin 3 (PTT) ---<yel>--- pin 3 (PKS)
pin (SPK) ---<gn>--- pin 5 (PR1) 300 mV 1200 Baud
Problem: the opening at the radio is too narrow, so the connector cannot bei inserted correctly. Use ready-
made PS/2 keyboard cables and cut the plastic until the connector fits in place.
Cable 40: ICOM IC281 A/H/E, IC481 A/H/E with packet-connection (stereo ear-phone jack 2,5 and 3,5 mm)
pin 1 (MIC) ---<br>--- 2,5 mm stereo ear phone jack inner (Data Input)
pin 2 (GND) ---<wh>--- 2,5 mm stereo ear phone jack outer (GND)
pin 2 (GND) ---<wh>--- 3,5 mm stereo ear-phone jack outer (GND)
pin 3 (PTT) ---<yel>--- 2,5 mm stereo ear phone jack middle (PTT)
pin 4 (SPK) ---<gn>--- 3,5 mm stereo ear phone jack inner (AF out)
Cable 41: Kenwood TM732, 733, 742 with 8-pin Western plug (mikrophone)
pin 1 (MIC) ---<br>--- pin 3 (MIC)
pin 2 (GND) ---<wh>--- pin 4 (GND MIC)
pin 2 (GND) ---<wh>--- pin 6 (GND)
pin 3 (PTT) ---<yel>--- pin 5 (PTT)
pin 4 (SPK) ---<gn>--- pin 2 (Audio 100mV)
Cable 51: Stabo, Team TS404, Astracom, Albrecht P1000 with 4-pin audio screw-locking line plug
pin 1 (MIC) ---<br>--- pin 1 : Modulation
pin 2 (GND) ---<wh>--- pin 2 : GND
pin 3 (PTT) ---<yel>--- pin 4 : TX, PTT
pin 4 (SPK) ---<gn>--- pin 3 : SPKR, 'cold' end of speaker
Note: The loudspeaker is in series with pin 4 (SPKR). So you can hear a weak packet signal. If you don't like
this, insert a 3,5 mm mono ear-phone plug in the speaker socket. Solder a 100
Ω resistor between both ter-
minals of the connector (an empty connector would interrupt the path of the audio voltage to the modem)
If you do not want to run the AF output of the radio without load, solder a 100
Ω resistor between pins 2 and
3 in the 4 pin Japan plug.
Alternatively, you can use cable 65 with additional 3,5 mm SPKR ear-phone jack.
Cable 52: President, Kaiser, Danita 1240 with 4-pin audio screw-locking line plug
pin 1 (MIC) ---<br>--- pin 2 : Modulation
pin 2 (GND) ---<wh>--- pin 1 : GND
pin 3 (PTT) ---<yel>--- pin 3 : TX, PTT
pin 4 (SPK) ---<gn>--- pin 4 : SPKR
Cable 53: Albrecht AE5280, President, Alan (s.a. Cable 69), Stabo XM7082 DTMF, HL1040, XM8082 with
6-pin audio screw-locking line plug. (XM8082 has bad reception quality for packet-radio).