U20409 AS-IS Untested Kantronics Packet Communicator 3 KPC-3

U20409 AS-IS Kantronics Packet Communicator 3

Overall Condition: Used, AS-IS / unchecked and untested physical condition! Cosmetic Details: The metal enclosure cabinet is in good physical shape with light, normal surface handling marks and bench dust. The front panel label, power button, and status indicator LEDs (Power, Xmit, Rcv, Con, Sta, Mail) are intact and clean. Testing & Parts Note: Sold strictly as-is for parts or restoration; powered state and functional operation are unverified as no power supply, computer, or radio interconnect cables are included.

The Kantronics Packet Communicator 3 (KPC-3) is a legendary single-port Terminal Node Controller (TNC) designed for amateur packet radio communications. Widely regarded as an industry-standard workhorse for 1200-baud AX.25 packet radio, APRS (Automatic Packet Reporting System) digipeating, Emergency Communications (EmComm), and remote BBS operations, it links a computer terminal to a VHF/UHF radio transceiver.

Featuring low power consumption, a built-in personal mailbox/BBS system, hardware GPS interface support for mobile APRS tracking, and an internal battery backup socket for memory retention, the KPC-3 remains a sought-after classic TNC unit.

Condition Breakdown

• General: Pre-owned, sold strictly AS-IS (unchecked / untested)
  

• Enclosure State: Black metal top/bottom cabinet is in good condition showing minor superficial handling wear

• Front Panel: Clean faceplate text; power latching button engages properly; status LEDs (Power, Xmit, Rcv, Con, Sta, Mail) are intact

• Missing Components: TNC unit only — power adapter, DB9/DB25 serial computer cable, radio interface cable, and manual are NOT included

Key Features

• 1200-Baud AX.25 TNC: Standard 1200-baud AFSK packet controller engineered for VHF/UHF radio packet communications

• APRS Digipeater & GPS Ready: Supports NMEA-0183 GPS receiver input for standalone mobile APRS beaconing and digipeating

• Integrated Personal Mailbox (PBBS): Features internal memory for storing and forwarding packet messages and telemetry data

• Low Power Draw: Optimized for battery and solar field deployments (POTA/SOTA/EmComm)

• Standard Serial & Radio Connections: Features rear DB25 terminal port and DB9 radio interface connector

What's Included

• Kantronics PacketCommunicator 3 (KPC-3) TNC Unit Only

• (Note: Requires external 6–12V DC Power Supply, RS-232 Serial Cable, and Radio Interface Lead — not included)

AS-IS No Warranty

S/N: 11K10-20682

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