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KAM-XL Firmware Update (ZIP, 225k) (latest rev, 02/19/2007)
(allow arqbbs link if vhf bbs in use, display of rtext through myremote link suppressed, fixes for mheard display and xkiss,changed handling of I and UI frames with no PID)

KAM-XL Firmware Update (ZIP, 215k) (latest rev, 12/13/2005)
(Refinements in message forwarding in nonpacket mailbox access)

KAM-XL Firmware Update (ZIP, 218k) (rev 08/11/2004)


The Kantronics original KAM (Kantronics All Mode) was a global revolution in digital communication. In Kantronics tradition, the KAM Plus evolved through customer suggestions and years of operating experience, making the Kantronics KAM Plus the most popular TNC on the global market. The KAM XL, Kantronics third generation multi-modem TNC is a state-of-the-art design giving the customer operations on both HF and UHF/VHF, while supporting DSP modems and popular new modes of operation.

Kantronics KAM-XL

Kantronics KAM-XL was designed to operate in many different applications as the digital world continues to change. Engineered for years of dependable performance, the KAM-XL also includes room for new modes and upgrades well into the future. Kantronics, the pioneer in digital communications, now offers you 30 years engineering experience in the Kantronics KAM-XL.

KAM-XL Features

Operating modes and functions include:

  • Packet (300, 1200 or 9600 bps)
  • GTOR™
  • PACTOR 1
  • AMTOR (ARQ, FEC, SELFEC, CCIR 476 & 625)
  • PSK31
  • RTTY
  • Dual Port Mailbox
  • CW
  • GPS NMEA-0183 compatible
  • Kantronics HOST Mode
  • KISS
  • Location Tracking/Announcement: With a GPS connected to the KAM-XL, you can automatically announce your position to others via HF, UHF, or VHF. Kantronics KAM-XL is engineered to work with APRS® software and supports advanced UI frame digipeating functions
  • HF and/or VHF/UHF Operations: With dual radio ports, the flexible Kantronics KAM-XL can be used on HF, UHF and VHF bands. The popular Kantronics KAM "gateway" feature between ports 1 and 2 allows for a local packet to be received on VHF or UHF bands, then transmitted over an HF band.
  • Large capacity Internal Mailbox: 480K personal mailbox is standard. The KAM-XL mailbox can respond to HF on TOR modes, as well as packet modes.
  • Versatile Operations: The Kantronics KAM-XL may be used at your base, in the field, or as a mobile. Designed for flexibility, the KAM-XL will function with mobile, base, or hand-held radios.
  • Detailed Manual: The KAM-XL manual is included on CD-ROM, and is available here in PDF form (1111k).
  • Made in the USA -- Limited one year warranty to original purchaser

KAM-XL Specifications

Dimensions (H×W×D)1.4"×8.5"×4.6" (36 mm × 216 mm × 117 mm)
System Control ProcessorHC12 with 512K Flash and 512K Battery-Backed RAM
DSP ChipADSP 2185M processor
Power RequirementsDC 10 V - 18 V, 150 ma
Power Plug2.1 mm coaxial, center pin positive
External Connection PortsRadio Ports 1 & 2: DB-9 female Computer Port: DB-9 female Aux. Port: DB-9 male Telemetry Port: DB-15 female
PTT Watchdog TimerApprox. 2.5 minutes
External Carrier Detect Pulldown to ground
Data Rate, Port 145-1200 bps
Data Rate, Port 2300-9600 bps
PTT OutputOpen drain, max +50 V dc
FSK OutputOpen drain, max +50 V dc
Audio OutputContinuously adjustable 10 mv - 2 V p-p
Output Impedance600 Ohm, AC coupled
HF ModulationUp to 1200 bps AFSK
VHF/UHF Modulation1200 bps FSK (Bell 202 ~ 1200/2200 Hz standard) 9600 bps GMSK
Audio Input
Dynamic RangeHF: >75 dB VHF/UHF: >73 dB
Input Impedance10 kOhm or 620 Ohm
Max input voltage±12 V dc; 35 v p-p sinusoidal
Other FeaturesHF and VHF PBBS access, KA-Node, Packet Gateway and Cross Connect
LED IndicatorsPower, Mail, Port 1 (Xmit, Rcv, Lock/Con, Val/Sta Speed, Tuner Bargraph), Port 2 (Xmit, Rec, Con/Sta)
Remote Control AccessAll controller functions, user-defined password
External ResetPulldown to ground
WarrantyKAM-XL is protected by a one-year limited warranty to the original owner

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.