Kenwood TM-V71A, TM-V71E Packet Operation, Data Band, Data Terminal Speed, Data terminal pins

PACKET OPERATION

Connect this transceiver to your personal computer via a Terminal Node Controller (TNC). You can send messages or commands to far away stations, obtain a variety of information via your local bulletin boards, or enjoy other Packet applications. Reference material for starting Packet operation should be available at any store that handles Amateur Radio equipment.

Note:

uWhen the distance between the radio antenna and your personal computer is too close, interference may occur.

uDo not share a power source between the transceiver and the TNC. When the distance between the TNC and your personal computer is too close, interference may occur.

Data terminal pins:

No.	Name	I/O	Function
q	PKD	Input	Audio signal for packet transmission
w	DE	—	PKD terminal ground
e	PKS	Input	‘L’ is transmitted and the microphone is muted
r	PR9	Output	9600 (bps) repeat signal
t	PR1	Output	1200 (bps) repeat signal
y	SQC	Output	Squelch control signal; Closed: ‘H’, Open: ‘L’
			(The default settings can be changed in Menu 520)
	E	—	Common ground

Data Band

Select how data will be transmited and received on your transceiver.

1Enter Menu mode and access Menu 517 (DAT.BND) {page 20}.

2Set the data band to A (A band receives and transmits), B (B band receives and transmits), ATX.BRX (A band transmits and B band receives), or ARX.BTX (A band receives and B band transmits).

Data Terminal Speed

Select 1200 or 9600 bps for the data transfer rate, depending on your TNC.

1200 bps: Transmit data input (PKD) sensitivity is 40 mVp-p, and input impedance is 10 kΩ.

9600 bps: Transmit data input (PKD) sensitivity is 2 Vp-p, input impedance is 10 kΩ, and the TNC has dual speed capability with a 2 Vp-poutput.

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