Hits 

50MHz to 28MHz RX Converter

50MHz to 28MHz RX Converter
    The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal
post 30 Jan 2025



Projects_Homebrew Links

170



Variometer Loading Coils for LP AM operation
LPAM antennas are more difficult to construct than their LPFM cousins. Firstly, they have to be longer. Secondly, they have to be vertical to work well which becomes an issue if the antenna is longer) Thirdly, they need to have rather long ground radials for the same reason

Voice Keyer vacile da usare e da costruire
Decisi quindi di costruirne uno semplice

Yaesu FT-817 abilitazione alla trasmissione continua
Puo' essere modificata per abilitarla a trasmettere sull'intero spettro delle HF

The Skew-Planar Wheel Antenna
This antenna, constructed by VE3BYT, was built for the beacon VE3WCC on 903.370 MHz in Ottawa, Canada


Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

Kits and Components

Amateur radio kits by Kanga US

Pcs Electronics

Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters