Kantronics KPC3-PLUS Packet TNC Modem for Amateur Radio

The KPC-3+ is a small full-featured packet TNC and is engineered for dependable and versatile digital communications. This unit reflects many years of Kantronics experience and is built with an eye toward emerging applications. It comes standard with 128K RAM expandable to 512K. Like all Kantronics TNC's, the KPC-3+ comes with PBBS, KA-Node, Host Mode and Kiss capabilities.

The new "Plus" version features: two A/D inputs, two digital output control lines, digital pots so audio drive can be set from the PC, APRS commands and an informative 250 page manual.

External connection ports on the rear panel include a DB-9 female (radio port) and a DB-25 female (computer/data terminal). This device requires 6 to 25 VDC at less than 30mA. (Power supply is not provided).

The Kantronics KPC-3+ is engineered for dependable and versatile digital communications. This unit reflects many years of Kantronics experience and is built with an eye toward emerging applications. The KPC-3+ can fill a variety of roles. In use around the world, Kantronics Packet Communicators set the standard by which others are measured!

You can carry a KPC-3+ into the field as a GPS mobile "tracker" or as a mobile data terminal. Its flexible power requirements (6 ~ 25 VDC) allow for maximum versatility. You can achieve many hours of use by installing a 9 volt battery inside the KPC-3+. Battery life can be extended by disabling the LED displays through a simple keyboard command. Comes with data connector, data wire, coaxial power plug, detailed manual & software Use with base, mobile or hand-held radio.

KPC-3+ Features & Applications Include:

"Keyboard to keyboard" communications
Digipeater
Personal Mail Box
Local area node
Remote control devices
Remote access of telemetry
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
EMWIN Weather Information (additional software required)
"NEWUSER" mode provides a quick start for packet newcomers
Large capacity internal mailbox and mail forwarding feature
GPS operation mode allows use with APRS® or other geolocation software
NEW: Remote Control and telemetry functions with two A/D inputs and two control line outputs
NEW: Faster HC11 Motorola® central processor
NEW: Digital audio drive control -- set from keyboard or by remote control
Low current requirements 9 volt battery power capability
Network node functions with standard "KA" Node or optional K-Net™ firmware
Optional K-Net node network firmware retains regular TNC functions
BBS, KISS, XKISS, HOST, TERMINAL, GPS and MODEM operating modes
Upgradeable as new firmware is released
"Online" HELP feature
Plug 2.1mm coaxial, centre pin positive
Internal Circuit board accommodates user-installed 9V battery connector
External Connection Ports DB-9 female (radio port) DB-25 female (computer/data terminal)
Watchdog Timer approx. 2.5 minutes
External Carrier Detect Pull down to ground
A/D Converter
Two inputs; 0 ~ 5VDC 8-bit accuracy
Data Rate (radio port) 1200bps (default); 300, 400, 600
PTT Output Open drain, +50VDC max, 200mA max
Audio Output: Continuously adjustable 1mV p-p ~ 4V p-p
Output Impedance: 600 Ohm AC coupled
Modulation 1200bps FSK full duplex CCITT V.23 1300Hz/2100Hz
Audio Input Sensitivity 5mV p-p
Dynamic Range 70dB
Input Impedance Unbalanced, 10k Ohm, 600 Ohm with jumper J 3 installed
Max input voltage ±12VDC; 35V p-p sinusoidal
128k memory standard: 512k optional
Dimensions (HWD) 0.8" x 5.2" x 5.2" (21mm x 133mm x 133mm) without projections
Weight 11oz (.32kg)
Remote Control Access All controller functions, user-defined password
External Reset Pull down to ground
Operating Protocols AX.25 Levels 1 and 2 (user-selectable)
Compliance FCC Class B; Europe - CE Conformity