Operator Herman
QRV on 70 cm


QTH-Locator: JO21CE

Index :
  Hambeurskalender :


  My collection of old radio's :

 Old Radios

  DVB-T Antenna :

 DVB-T 550 MHz Fractal Antenna

  SDR Labo :

 SDR RTL Spectrum Analyzer Software ( New )

  Before you go into SDR :

  SDR: you should know this (external link)
  SDR interference and solutions
  READ FIRST: SDR Antenna Considerations

  SDR Antenna's :

 SDR: Two Modified Stock Antenna's
 SDR: PA0FBK VHF/UHF (Dualband 2m-70cm) Antenna
 SDR: Wide-Band VHF-UHF Antenna DR2000
 SDR: Basic HF Mini-Whip Antenna (Update 2021)
 SDR: HF Mini-Whip Slim-line Antenna

  SDR HF Up-converters (0-30 MHz) :

 RTL-SDR Basic HF UP-Converter V1.0
 RTL-SDR Mini HF UP-Convertor V3.0

  DDS Projects :

 DDS Generator 1-60 MHz for cheap AD9850 Module

  Other :

  Making the OZ2CPL HF Power meter

  Make your own coils for VHF-UHF

  Digital Zener Diode Tester 0 - 30 Volt ( New )

  LC Meters :

 Improved LC Meter for SMD's with a PIC16F628 (Update 2021)

 Elektor Pico-C / frequency and period meter

  Older Projects :

 Kruidvat Radio and a DRM Mixer

 Kruidvat Radio + a Tune LED

 Gel battery charger with anti-sulphation

 Simple 1-30 MHz Generator with a LTC1799

 The on1bes Toko Coil & Watch Crystal Tester ( Updated )

  FET Specials :

 Two FET Testers

 FET Oscillators

 FET HF opamps

  Microcontroller : Atmel & AVR :

 AT89C2051 Testboard

 AT89C2051 Programmer (obsolete)

 AVR ATTiny 2313 Test Board

 AT89C2051 IR Decoder with Relais

  Microcontroller PIC µP Pages :

 PIC µP controller families

 Modified Serial PIC µP JDM Progammer

  Labo - Measure Varicaps :

 Link :  Varicaps   Measure with a Varicap adapter

 Link :  Externe links

  My first computer was a Tandy TRS-80 anno 1980 !


          Flag Counter

  Ask your Meteo (Click on the KMI icon):

mail   on1bes at   You are Visitor (dec 2021):