Milestones• October 2000 – Raising antennas, running

coax.

• November 2000 – Setting up web server.

• December 2000 - Construction of the rotor control board, audio control board, I/O board, software and interfacing HF radio.

• March 2001- Initial trial tests of system.

• May 2001 – Final testing of system.

Team ICARUS

Eric Junker (CprE)

Keith Krebs (EE)

Michael Lenth (EE)

DeAntrious Mitchell (CprE)

Doug Schaapveld (CprE)

Doug Woleben (EE)

Client

Cyclone

Amateur

Radio

Club

ICARUS Advisor

Dr. Steve Russell

Team

May 0107

ICARUS Website

http:/seniord.ee.iastate.edu/~may0107

Budget

Radios $3,750.00Computer system 650.00Control boards 200.00Poster 50.00Antenna system 2,600.00_______________________________

Total $7,250.00

Abstract

The problem with High Frequency (HF) radio setups is that they require a large amount of money and space for an individual to buy and maintain. The proposed solution to this problem is to have an HF radio system that amateur radio operators could access through a handheld radio and control through an internet connection. This would eliminate space and cost restrictions while allowing worldwide communications.

Technical Approach

The design for ICARUS will consist of 7 major components:

• HF / VHF radio: Enables world wide communications.

• UHF repeater: Extends local range for handheld radios.

• Antennas: Allows transmissions of radio signals.

• Antenna control board: Correctly positions the antenna.

• Audio control board: Routes audio to the proper radio.

• I/O board: Interfaces control boards and the computer.

• Computer: Controls equipment and runs the web server.

End Product

The final deliverable system will:

• Provide worldwide communication through a UHF handheld radio.

• Incorporate a computer controlled HF/VHF radio and an antenna system.

• Allow remote control of system functions through a web browser.

• Limit access to the system to authorized users.

• Allow users to conveniently operate a HF radio system.

• Allow hardware costs to be divided among many users.

Assumptions & Limitations• User must have access to computers with

internet connection.

• User must be a licensed amateur radio operator familiar with the use of a UHF repeater system.

• User has limited control of HF radio and repeater functions.

Personnel Effort

Estimated effort 1,200 Hours

User with UHF HandheldRadio and Computer

Distant HF AmateurRadio Operator

I C A R U S

Control viaInternet

Connection

HF / VHF 3.5 – 148 MHzUHF 442.375 MHz

Terms / Definitions

HF High FrequencyVHF Very High FrequencyUHF Ultra High FrequencyI/O Input / Output