Windows 7™ Compatible

SELCAL Encoder 2.0
Aviation Selective Calling

The new low-cost alternative to expensive hardware-based SELCAL encoders

Used by airlines and aeronautical radio operators to "page" specific aircraft during flight via HF or VHF radio. Quick installation and setup, simple to use.

16 User-defined Memory Presets

NO ADDITIONAL HARDWARE REQUIRED

15-Day Free Trial

Feed sound card output directly into transmitter

Built-in Calibration system for high accuracy.

Transmit delay and output level controls

User settings stored after each use

Security feature keeps codes confidential

Read on for complete description...OR see the online User Manual.

For ordering information, click here.

How it works:

ComTekk SELCAL generates Aviation SELCAL or selective-calling tones using your computer's sound card:

ComTekk's SELCAL software is compatible with almost any radio which has a grounding-type PTT connection.
Click on image above, see "Method 1" for controlling a transceiver.
(EIA tone-remote is not currently supported by ComTekk SELCAL)

SELCAL is an international signaling protocol which allows airline radio operators to contact specific aircraft over HF of VHF radio while in flight. The SELCAL decoder on board each aircraft is assigned a unique 4-letter code. This allows the receiver audio to be muted until that code is received, alerting the crew there is a radio call for them. This way, they do not have to be distracted by all the radio traffic intended for other planes.

SELCAL (ARINC-714 / ICAO Annex 10 standard) is a dual-tone (2x2) format similar to DTMF, but uses 16 different tone frequencies. Each digit or letter in the code sequence refers to an audio tone frequency. The first two digits comprise the first tone pair, and the last two digits determine the second pair of tone frequencies.

CTSelcal includes a convenient auto-calibration system which compensates for errors in the sound card's timebase, ensuring accurate tones are produced. This is critical, as the tone frequencies must be very precise to be decoded by the aircraft's electronic decoder.

NOTICE:

Since we do not manufacture computer hardware or radios, we cannot guarantee the specifications of any third-party equipment used with or controlled by our software products. Use of our software is limited to the terms and conditions as provided within the included end-user license agreement (EULA) available for download at our website.

Due to it’s technical nature, installation and alignment should only be performed by a trained, qualified avionics technician.

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For ComTekk Software on burned onto a CD, plus postage to your location, add:

IMPORTANT NOTES:

* By purchasing or installing this software, you agree to the terms and conditions set forth in the License.

* Your registration key will be delivered automatically via the email address you entered at checkout. A PayPal account is NOT required.

A word of caution:

* Sound card isolators are recommended to prevent possible damage to sound card and computer (included in kit interface). The author assumes no liability for damages of any kind.

For more information on connecting to sound cards, click here. Direct radio interface unit supplied with kits. Call or send an email for more information.

**Minimum System Requirements:

Microsoft Windows 98/ME/2000/XP/Vista™/ Windows 7™
Pentium II - 233MHz or better CPU
256MB RAM
16-bit full-duplex audio device

We believe in giving back to those who made the ultimate sacrifice for their communites.

ComTekk is a proud supporter of the
National Fallen Firefighters Foundation.

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