Here are some projects I realized recently. Feel free to contact me for more info !
| PROJECT: | DESCRIPTION: | |
|---|---|---|
| Construction | ||
| • A contest 'Voice Keyer' | Generates messages for contests. Based on VELLEMAN kit, will transmit recorded messages up to 20 sec in length. | |
| • 13cm 150w Power Amp | 2w in / 150w out PA for the 13cm band - based on 2 Spectrian boards | |
| • The 'MELITTA' version 1 | A basic 5 bands HF filter for contests with multiple stations | |
| • The 'MELITTA' version 2 | An advanced high performance remote switchable HF Band filter for contests with multiple stations | |
| • The 'MELITTA' version 3 | Howebrew HF Band pass filters and comparison to W3NQN type | |
| A R D U I N O | ||
| • Auto Antenna Tuner | An automatic ATU for ICOM transceivers and 20/40m dual band end fed half wave antenna | |
| • DAVIS Wind Sensor | A readout for DAVIS wind direction / speed sensor + thermometer | |
| • Simplex Repeater | A simplex (parrot) repeater controller, for use with GM-350/950 radio's | |
| • Antenna Matrix Switch | Automatic Antenna (or Band Pass Filter) switch matrix, controlled by ICOM CAT | |
| • Power & SWR Meter | Power & SWR meter, multiband , can be used with any bridge. Reads in dBm, PEP, or audio indication. | |
| • GPS Maidenhead Locator | GPS receiver display with MAIDENHEAD locator converter. | |
| Repeater & Echolink | ||
| • A PC watchdog | A watchdog based on PIC circuit for your echolink PC | |
| • PRM80 Repeater | Repeater with 2x PRM8020 Philips/SIMOCO | |
| • DTMF WatchGuard script | A small script to kill certain DTMF codes received and temporarily suspend DTMF decoding | |
| Antenna's | ||
| • Coax Traps Construction | Some hints and tips to construct easily reproducible HF traps with ordinary coax cable | |
| • Wire Traps Construction | Some hints and tips to construct HF traps with aluminium wire & doorknob capacitor | |
| • Simple multiband dipoles | Simple multiband dipoles, I use them to stay in touch with homebase during holidays! | |
| • Shorty Forty | A very short (less than 10m long) dipole for 40m band | |
| • Baluns | Building yourself a 1:1 current balun from QRP to QRO | |
| • Mobile Antenna 20/40m | A high efficiency mobile antenna for 20 an 40m operation | |
| • Full Size 80m GPA | A high efficiency 80m antenna with Spiderbeam pole | |
| • Inverted-L 80m & 160m | Inverted-L antenna for portable / field day / DX-pedition | |
| • K9AY Antenna | The K9AY antenna is a directional antenna for 160 and 80m bands | |
| • 160 & 80m band preamp | A high performance antenna preamplifier for 160 and 80m bands | |
| • 2m & 70cm SAT preamps | High performance SAT preamps design by ON6UG | |
| • 3 way ant coupler 145MHz | A 3 way antenna coupler / combiner for 2m band | |
| Modifications | ||
| • IC-706 MkII frontend filter | An add-on bandpass filter to eliminate intermods on 20m band | |
| • IC-E2820 display | Replace the baclklight LEDs by high intensity white LEDs |