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ARRL Ham Radio License Manual 4th Edition (Spiral Bound) #0826
ARRL Ham Radio License Manual 4th Edition (Spiral Bound) #0826
KPC-9612+ Packet Communicator
KPC-9612+ Packet Communicator

KPC-9612+ Packet Communicator


The Kantronics KPC-9612+ is a versatile multi-port, multi-speed radio modem/TNC/data controller designed to fill many different roles, now and in the future. Capable of speeds up to 38.4 kbps and optional three port operation, the KPC-9612+ opens a new era in user flexibility and customization.

KPC-9612+ Applications Include:

  • 'Keyboard to keyboard' communications
  • Send/Receive Files
  • Send/Receive Paging signals (POCSAG 512, 1200, 2400)
  • Digipeater
  • Personal Mail Box
  • Local area node
  • Remote control devices
  • Remote access
  • Network node operation (requires optional K-Net™ firmware)
  • BBS operations and message forwarding
  • GPS position transmitting and tracking (NMEA-0183 data required)
  • Data storage and retrieval
  • Weather facsimile reception (requires additional software)
  • EMWIN weather information (requires additional software)
  • 1200 <--> 9600 gateway operation

The KPC-9612+ can be used in the field with a radio to form a mobile data terminal, or (with the addition of an external GPS receiver) a GPS mobile "tracker". Its broad supply voltage range (DC 5.5 V to  25 V) allows for maximum flexibility.

KPC-9612+ Features

  • Dual port 1200/9600 bps operation, standard
  • Port 1 supports 1200 bps
  • Port 2 supports 4800, 9600, 19200, 38400 bps with DFSK modulation
  • "NEWUSER" mode provides a quick start for packet newcomers
  • Large capacity internal mailbox and mail forwarding feature
  • Multiple user mailbox flashes Mail lamp for up to 10 call signs
  • GPS operation mode allows use with APRS® or other geolocation software
  • Telemetry functions and Remote Control with two A/D inputs and two control line outputs
  • Paging transmit/receive capability -- POCSAG compatible
  • Faster HC11 Motorola® central processor
  • Digital audio drive control -- set from keyboard or by remote control
  • Low current requirements
  • Network node functions with standard "KA" Node or optional K-Net™ firmware
  • BBS, KISS, XKISS, HOST, TERMINAL, GPS and MODEM operating modes
  • Upgradeable as new firmware is released
  • "Online" HELP feature
  • 128k memory standard; 512k optional
  • Comes with data connector, data wire, coaxial power plug, detailed manual & basic software
  • Use with base, mobile or hand-held radios
  • Made in the USA -- Limited one year warranty to original purchaser

KPC-9612+ Specifications

Dimensions (H×W×D)0.8"×6.7"×6.9" (21 mm × 170 mm × 175 mm) without projections
Weight18 oz (0.5 kg) (approx.)
Power Requirements DC 6 V to 25 V, < 45 mA (LEDs on, unit active)
Power Connector 2.1mm coaxial, center pin positive
External Signal Ports DB-9 female (radio port 1)
DB-15 female (radio port 2)
DB-25 female (computer/data terminal)
Watchdog Timer3 minutes (radio port 1),
40 seconds (radio port 2) (approx)
External Carrier Detect Pulldown to ground
Analog Measurement Inputs
(A/D Converter)
Two inputs; 0 V to +5 V, 8-bit accuracy, ZIN= 20 kOhm
PTT Output Open drain, max +50 V dc, 200 mA max
Radio Port 1 
    Data Rate 1200 bps (default); 300, 400, 600
    Modulation 1200 bps FSK full duplex CCITT V.23 1300 Hz/2100 Hz
    Audio Output Level Continuously adjustable from 1 mV p-p to 4 V p-p
    Output Impedance 600 Ohm, AC coupled
    Audio Input Sensitivity 5 mV p-p
    Input Dynamic Range > 70 dB
    Input Impedance Unbalanced, 10 kOhm
(600 Ohm with jumper J 3 installed)
    Max Audio Input Voltage ±12 V dc; 35 V p-p sinusoidal
    Equalization None or Fixed
Radio Port 2  
    Data Rate 4800, 9600, 19200, 38400 bps
    Modulation Gaussian Filtered DFSK with normal Bandwidths of 0.3, 0.5 or full
    Audio Output Level 2 mV p-p ~ 100 mV p-p (J 20 off)
80 mV p-p ~ 4 V p-p (J 20 on)
    Output Impedance 600 Ohm, AC or DC coupled
    Audio Input Sensitivity lo: 15 mV ~ 200 mv p-p (J 16 on)
hi: 80 mV ~ 2.0 V p-p
    Input Dynamic Range >20 dB (either range)
    Input Impedance Unbalanced, 10 kOhm
(600 Ohm with jumper J 3 installed)
    Max Audio Input Voltage ±25 V dc; 25 V p-p sinusoidal
    Equalization Variable, Software controlled
    RX S/N Quality Indicator 0 V to 3 V dc (Zout= 2.2 kOhm)
Operating Modes Packet, KISS, XKISS, HOST, GPS, PAGING, MODEM
LED Indicators Power, Xmit, Rcv, Connected, Status, Mail
(user option on/off)
Remote Control Access All controller functions, user-defined password
External Reset Pulldown to ground
Operating Protocols AX.25 Levels 1 and 2 (user-selectable)
Compliance FCC Class B; Europe - CE Conformity

Specifications subject to change without notice or obligation.
APRS® is a registered trademark of Bob Bruninga, WB4APR.
All registered trademarks remain the property of their respective owners.

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This product was added to our catalog on Tuesday 11 January, 2011.
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