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  • es'hail-2 Projects
    • SSB High Speed Modem
      • Images
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    • 13cm PA
      • The Concept
      • Stage-1: 10W PA
      • Stage-2: 30W PA
      • Manufacturing Data
    • es'hail-2 Web SDR
      • Overview
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      • RX Power/Refclk Box
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      • DJ0ABR-1 until 7.2019
      • DJ0ABR-2 until 9-2019
      • DJ0ABR-3 since 10.2019
      • DO1RX
    WebWSPR
    • Overview
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    • Softw. Installation
    • Hardw.Installation
    • Operation
    • Soundcard
    1kW Short Wave AMP
    • Overview, Block Diagram
    • Circuit
    • 65 volts version
    • Videos, Playlist
    • Schematic/Layout
  • LDMOS 3,5" Amp Controller
    • Overview
    • User Manual
    • Connectors
    • Schematics: uC
    • Schematics: Analog IN
    • Schematics: Digital IO
    • PCB placement
    • the PCB
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    • BOM
  • DSP-7-PA 7" Amp Controller
    • Overview
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    • Operating Manual
    • Calibration
    • Bootloader
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    • WiFi, Webserver
    • WiFi, Bootloader
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    • User defined pictures
  • Antenna Switches and Selectors
    • Antenna Switch
    • Transceiver Selector Board
    • Video: Assembly
    • Ant.Switch PCB Data
    • TRX Sel. PCB Data
  • 2kW Low Pass Filter
    • Assembly Instructions
      • 160m
      • 80m
      • 60+40m
      • 30+20m
      • 17+15m
      • 12+10m
      • 6m
    • Schematics: Relais
    • Schematics: L/C
    • PCB placement
    • BOM
    • PCB pictures
    • measurement results
    • Schematics/Layout
  • Power / SWR Measurement
    • 10mW-2kW Direct. Coupler
    • Performance
    • BOM
    • PCB Placement
    • Schematic/Layout
  • Overcurrent Protection
    • Overview
    • Installation Manual
    • Schematics/Layout
  • Projects
    • Digital SWR Meter
    • APRS with IC-2820
    • TinyTrack-3 with IC-2820
  • 500kc 630m Band
    • 500W MOSFET Power Amp
    • Schematic/Layout
  • DDS and WSPR
    • U02-DDS & WSPR Beacon
    • DDS & WSPR board
    • 5watts 11-Band PA
    • Milliwatt Pwr/Swr Meter
    • TFT Color Display
    • the Software
    • DOWNLOAD
    • 5W PA Documents
  • WSPR-Linux Software
    • Overview
    • Ubuntu Installation
    • WSPR RX Console
    • WSPR RX X-Windows
    • Line-IN activation
    • Tips by users
  • D-Star
    • D-Star eqipment
    • D-Star Homemade
    • D-Dstar with C5608
    • D-Star with FT-736
    • D-Star with Yaesu
    • D-Star Hot Spot
    • D-Star Crossband Repeater
    • DV Repeater Manual
  • Antennas
    • Building Antennas
    • 40/80/160m dipole
    • VHF/UHF antennas
    • Antenna Matrix
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