1 / 12

Automatic Link Establishment for Amateur Radio Status Report

Automatic Link Establishment for Amateur Radio Status Report. Ken Heitner WB4AKK 2011 ARRL / TAPR DCC. Automatic Link Establishment (ALE) for Amateurs - Overview. What Does It Do? How Does It Work? Different Approaches Personal Computer Software Approach On The Air Operations

gunda
Télécharger la présentation

Automatic Link Establishment for Amateur Radio Status Report

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Automatic Link Establishmentfor Amateur RadioStatus Report Ken Heitner WB4AKK 2011 ARRL / TAPR DCC

  2. Automatic Link Establishment(ALE) for Amateurs - Overview • What Does It Do? • How Does It Work? • Different Approaches • Personal Computer Software Approach • On The Air Operations • Getting Started

  3. How Does Automatic Link Establishment Work? • ALE is based on a network of HF radios using the same channels across the spectrum • Amateurs are establishing a network of pilot channels in the amateur bands • Each station in the network has a unique address (callsign) • Each station monitors the channels listening for its (or other) callsigns

  4. How Does Automatic Link Establishment Work? • In order to establish communications, ALE stations must LINK • A LINK is established in 3 steps: • Operator or ALE controller initiates a call (Nominally on the best available channel) • The call is acknowledged by the called station • The calling station acknowledges that response. • An established LINK can also provide Internet connectivity (Digital Connectivity)

  5. How to Do Automatic Link Establishment • Dedicated Radios • External ALE Controllers • Personal Computer Software Systems – PC-ALE or MultiPSK • Key idea is free and open software • Discussion will now focus on PC-ALE Software and How it Works.

  6. Software ALE Computer Requirements • Software ALE Recommendations • 133 MHz Pentium • Win 98 SE Soundcard • Current Recommendations • Pentium 4 Processor • Win XP Professional SP 3 • PCI Soundcard or USB Soundcard Interface

  7. Software – ALE Radio Requirements • Supports Computer Aided Transceiver (CAT) Protocol with RS-232 or USB Interface • Additional Desired Radio Features • Supports Silent Scanning and Sounding • Supports Variable Output Power Levels via CAT • Can run 24/7 without other problems

  8. Software ALEInterface Recommendations • Sound Device • Internal or External Soundcard with wide dynamic range (16 or 24 bits) • State-of-the-art External Sound Devices connect via Universal Serial Bus port • Control Lines • Serial Port for Computer Aided Transceiver • USB for CAT

  9. Software ALEAntenna & Coupler Requirements • ALE operation covers a wide frequency range • Optimal communications could involve use of multiple antennas or automatic antenna couplers (switching type) • Inherently broad band antennas, such as B&W folded dipoles work well

  10. Software ALEWhere and What • PC – ALE at URL: hflink.com • Site contains links to almost everything you could imagine would be needed for this type of operation • Join the HFLink Users Group • Monitor operations and send messages

  11. Software ALE / HFLinkerFrequencies Available • Global – 8 channels for data • North America – 10 voice channels • Worldwide – 30 channels • See URL: hflink.net for more details on all aspects of amateur ALE operation

  12. Software ALE / HFLinkerDeployment at This Time

More Related