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Portable UHF 4 elements Yagi Antenna
Building this four elements Yagi for 430-440Mhz, to use it this summer in portable operation
post 05 Dec 2024
Antenna 6 meter Links →
High especialy on 70cm
The very popular FM-birds, AO-27 has a difficult downlink with only around 600mW of power. To provide a good downlink signal a beam antenna must be used
Optimized 10-element UHF Yagi Antenna
The elements diameter of the antenna may vary between 5...10mm and the dipole diameter may vary between 8/12mm
Slappe Arnold antenne voor de 6 meter
Slappe Arnold' antenne voor de 6 meter amateur-band 51MHz. Ideale antenne om in uw vakantie QRV te zijn op 6m
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The very popular FM-birds, AO-27 has a difficult downlink with only around 600mW of power. To provide a good downlink signal a beam antenna must be used
The elements diameter of the antenna may vary between 5...10mm and the dipole diameter may vary between 8/12mm
Slappe Arnold' antenne voor de 6 meter amateur-band 51MHz. Ideale antenne om in uw vakantie QRV te zijn op 6m
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione