PACKET OPERATION

Packet operation is easily accomplished on the FT-2000by connecting your TNC (Terminal Node Controller) to the transceiver, per the illustration. “Packet” operation also applies to SSB-based AFSK data modes, such as PSK31, etc.

DATA DATA

PTT OUT IN

PACKET

④

②

⑤

PACKET JACK

TNC

 

 

 

① ③

 

Pin 1 (DATA IN)

DATA OUT

 

 

 

 

 

 

 

 

Pin 2 (GND)

GND

 

 

 

 

Pin 3 (PACKET PTT)

PTT

 

 

 

 

Pin 4 (DATA OUT)

DATA IN

 

 

 

 

Pin 5 (BUSY)

(SQL Control)

PACKET SETUP (INCLUDING SUBCARRIER FREQUENCY)

Before operation can commence, some basic setup procedures must be performed, using the Menu, to configure your radio for the data mode to be used.

 

MENU ITEM

AVAILABLE VALUES

 

MENU ITEM

AVAILABLE VALUES

064

dAtA DATA IN

dAtA (DATA) / PC (PC)

068

dAtA VOX DLY

30 ~ 3000 msec

065

dAtA DT GAIN

0 ~ 100

069

dAtA V GAIN

0 ~ 100

066

dAtA DT OUT

nAin (Main) / Sub (Sub)

070

dAtA PKTDISP

–3000 ~ +3000 Hz

067

dAtA OUT LVL

0 ~ 100

071

dAtA PKT SFT

–3000 ~ +3000 Hz

BASIC SETUP

1.Press the [PKT] button.

ADVICE:

￿For HF operation, SSB-based Data operation is gen- erally used. One press of the [PKT] button will engage Packet operation in the “LSB” mode (by default). Both the “PKT” and “LSB” LEDs will become illuminated.

￿If you need to do FM-based 1200-baud packet on the 29/50 MHz bands, press the [PKT] button re- peatedly to illuminate the ‘PKT” LED to orange, to engage the “PKT-FM” mode.

￿When both the “PKT” and “USB” LEDs are illu- minated, the FT-2000has engaged Packet opera- tion in the “USB” mode.

2.When the “transmit” command is received from the TNC, the transmitter of the FT-2000will automati- cally be engaged. Likewise, the command to return to receive will cause the radio to revert to the receive mode.

ADVICE:

￿During Packet operation via the rear panel’s PACKET jack, the front panel MIC jack is cut off, so you won’t have a “live microphone” problem during data opera- tion.

NOTE:

If you anticipate making data transmissions of longer than a few minutes, we recommend that you use the [RF PWR] knob to reduce the transmitter power to 1/3 ~ 1/2 of its normal maximum.

QUICK POINT:

PACKET Jack Specifications

￿DATA IN (Pin 1)

Input Level: 50 mVp-p

Input Impedance: 10 k-Ohms

￿DATA OUT (Pin 4)

Fixed level, does not respond to setting of [AF GAIN] or [SQL] knob.

Output Level: 100 mVp-p max.

Output Impedance: 10 k-Ohms

￿If you need to adjust the output level from the “DATA OUT” pin of the PACKET jack (pin 4) on the radio, please use Menu item “067 dAtA OUT LVL.” For the input level from the TNC, as applied to the DATA IN pin of the PACKET jack (pin 1), please do so at the TNC side.

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FT-2000 OPERATING MANUAL