Vertex Standard FT-2800M 45

PACKET OPERATION

The FT-2800Mmay be used for 1200 bps Packet operation, using most all commonly- available Terminal Node Controllers (TNCs). Connections between the transceiver and the TNC are accomplished via the front panel Microphone connector and rear panel External Speaker jack, per the diagram below.

The audio level from the receiver to the TNC may be adjusted by using the VOL knob, as with voice operation. The input level to the FT-2800Mfrom the TNC should be adjusted at the TNC side; the optimum input voltage is approximately 4 mV at 2000 Ohms.

Setting of the optimum TX Audio level: first, connect the MH-48A6Jto the Microphone connector, and while listening on a monitor receiver, transmit on the FT-2800Mand press one or more of the Microphone’s DTMF keys. Note the audio level of the DTMF tones heard in the monitor receiver, then, after removing the microphone and hooking up the TNC, set the TX Data level “by ear” to about the same level. In most cases, this level of accuracy in adjustment will be sufficient for good throughput.

Be sure to turn the transceiver and TNC off before connecting the cables, so as to prevent voltage spikes from possibly damaging your transceiver.

DATA	DATA
IN	OUT	PTT

PWR MHz REV	LOW D/MR
MIC	EXT SP (REAR PANEL))
Pin 4: GND	PACKET RX OUT
Pin 5: PACKET TX IN
Pin 6: PTT

FT-2800M OPERATING MANUAL

43

Contents

VERTEX STANDARD CO., LTD VERTEX STANDARD YAESU EUROPE B.V YAESU UK LTD VERTEX STANDARD HK LTD Contents Page General Frequency Range: Channel Step: Standard Repeater Shift: Frequency Stability: SUPPLIED ACCESSORIES MMB-83 OPTIONAL ACCESSORIES MLS-100 FP-1023 PRELIMINARY INSPECTION INSTALLATION TIPS SAFETY INFORMATION may be walking in the main directional lobe of the antenna’s radiation pattern raise the radiation pattern as far away from passengers as possible Never wear dual-earmuffheadphones while driving a vehicle ally or using the auto-dialfeature ANTENNA CONSIDERATION For reference, the chart at the right shows ap proximate loss figures for typically-available coaxial cables frequently used in VHF instal lations MOBILE INSTALLATION MMB-83Installation Mobile Power Connections Mobile Speakers AC Power Supplies Base Station Feet VOL Knob SQL Knob Microphone Jack [] Key PWR Key REV [LOW(A/N)] Key LOW [D/MR(MW)] Key D/MR PTT Keypad LAMP Switch LAMP LOCK Switch EXT SP Jack 13.8V DC Cable Pigtail w/Fuse 13.8V DC ANT Coaxial Socket ANT 1) Tuning Dial 2) Direct Keypad Frequency Entry 3) Scanning Changing the Transmitter Power Level WEATHER BROADCAST RECEPTION To listen to a Weather Broadcast Channel: 1. Press the Microphone’s [P4] button to recall the Weather Broadcast channels 2. Turn the DIAL knob to select the desired Weather Broadcast channel To exit to normal operation, press the EATURE KEY K+D K+P D+P CHANNEL STEP SELECTION 29 STEP DISPLAY BRIGHTNESS 07 DIMR RF SQUELCH 20 RF SQL If the Noise Squelch RF Squelch Repeater Splits [1] Standard Repeater Shift Page Page CTCSS Operation DCS Operation Tone Search Scanning CTCSS/DCS Bell Paging Split Tone Operation DTMF AUTODIALER OPERATION 10 DT MEM DTMF-1 DTMF-9 08 DTMF 11 DT SPD 09 DT DLY MEMORY STORAGE To store a frequency into memory: split”), use the procedure described on page Labeling Memories Memory Tuning Deleting Memories HOME CHANNEL MEMORY 1. From the VFO mode, tune in the frequency you wish MEMORY-ONLY MODE To return to normal operation, repeat the above power-onprocedure BASIC SCANNER OPERATION SCAN-RESUME OPTIONS BUSY HOLD 5 SEC MEMORY SKIP SCANNING skip scanning manual selection To mask a memory to be skipped during scanning, use the following procedure: PREFERENTIAL MEMORY SCAN Here is the procedure for setting up and using the Preferential Scan List: Set the radio to the Memory Recall mode by pressing the 4.Press the [MHz(SET)] key, then rotate the DIAL knob so as to select “ONLY.” To initiate Preferential Memory Scanning: PROGRAMMABLE BAND-SCAN LIMITS L0/U0 L9/U9 To utilize this feature, use the following steps: With any of these memories recalled, press the Priority Revert Mode BAND EDGE BEEPER 12 EDG BP SINGLE CONT Setting the Smart Search Mode 30 S SRCH Storing Smart Search Memories 13 INTNET WIRES Page TIME-OUT TIMER To change the default (6 minutes) time setting: 31 TOT AUTOMATIC POWER-OFF To activate the APO feature: PROGRAMMING THE KEY ASSIGNMENTS 15 PRG P1 16 PRG P2 17 PRG P3 18 PRG P4 MIC GAIN CONTROL 33 W N DV NAR- ROW WIDE MICROPROCESSOR RESETTING MASRST SET MODE RESETTING SETRST MIC TX RX Destination radio Source radio ERROR 1.Press and hold in the [MHz(SET)] key for one second to enter the Set mode 2.Rotate the DIAL knob to select the Menu Item to be adjusted After completing your selection and adjustment, press and hold in the MENU SELECTION DETAILS 00 ALPH Function 01 APO Available Values 09 DT DLY Default 10 DT MEM 11 DT SPD Available Values: 50/100 (ms) 15 PRG P1 16 PRG P2 17 PRG P3 18 PRG P4 Default: WX CH 20 RF SQL Available Values: 1 - 10, or OFF 21 RPTR Default: SIMP 22 RVRT 26 SQ DCS 27 SQ TNF 28 SQ TYP 29 STEP 30 S SRCH Available Values: SINGLE/CONT 31 TOT Default: 6 MIN 32 W ALT