AM Transmitters Collection

 4-Pin Crystal Oscillator AM Transmitter | DSB Transmitter | 7MHz CW / AM QRP Transmitter | Sovina2 40M Class E Transmitter | series modulated AM QRP HF Transmitter | one watt AM transmitter | Class C – AM Transmitter | Series Modulated AM Transmitter | Micro Power AM Transmitter! | Steve Quest’s Simple AM Transmitter | 40M AM Transmitter | Grenade AM Transmitter Circuit | Commando AM Transmitter | IRF510 AM Transmitter | 3-Watt AM Radio Transmitter | 27MHz AM Transmitter | 1 MHz AM Transmitter

FM Transmitters Collection

 Mini FM Radio Transmitter | Simple FM Band Transmitter | 90MHz Crystal Controlled FM Transmitter | FM Transmitter Using BC547 | FM Bug Transmitter | Miniature FM Transmitter | Tiny FM Transmitter | Powerful FM Radio Bug Transmitter

VHF/UHF Antennas collection

 High-Gain 5/8 Wave Mobile Antenna  | 3-Element 433 MHz Yagi Antenna  | G5RV Antenna for 145 MHz  | Directional Slim Jim Antenna  | VHF Slingshot Antenna  | OSJ Dual-Band Antenna  | Double Dipole Antenna  | V-dipole antenna for weather satellites reception  | 145 MHZ Delta Loop  | Popovic Dual Band Antenna  | High Gain Collinear Antenna  | FBK Sleeve Antenna  | Coaxial Collinear Antenna  | ZED Dipole Antenna  | VHF Sleeve Dipole Antenna  | Broadband Avia Antenna  | Square Loop Antenna  | Broadband Butterfly Antenna  | Dual-Band RW4HFN Antenna  | High-Gain collinear antenna  | Sleeve Dipole Antenn  | Stacked 5/8-wave VHF Antenna  | 3-Element Yagi antenna UHF  | 5/4 Wave VHF Antenna  | VHF Collinear J-Pole  | 3 x 5/8 Collinear antenna  | Twin-Lead J-Pole Antenna  | J-Pole Antenna Using 300 Ω TV Ribbon  | Hourglass Loop Antenna  | Hotel Antenna for 2 Meter  | Full Wave Loop Antenna for VHF  | Bi-Square Antenna

HF Wire Antennas collections

 40-10m OCF Antenna  | Windom Antenna for 80-10 | Compact 40M Magnetic Loop Antenna |  The Mini G5RV Antenna  |  Shorty 4020 Antenna |  Multiband OCF Dipole |  Double Dipole Antenna for 80–10 |  20m Stealth Antenna |  80 Meter Short Dipole Antenna |  Open Sleeve Dipole Antenna for 40-20 |  Shortened EFHW Antenna |  3-Band HF Antenna |  City Windom Antenna |  20 Meter Folded Dipole Antenna |  Low Height Loop Antenna |  T2FD Antenna: |  30m/40m Dual-Band Delta Loop antenna |  Doublet Dipole Antenna for 80m to 15m |  Trapped Delta Loop Antenna |  Folded Beverage Antenna |  Small Magnetic Loop |  Super Mini Loop Antenna |  Half Square Antenna |  Shortwave Transmitter |   Rockloop HF Antenna |  Foldaway Loop antenna |  Terminated End Fed Vee Antenna |  Half Rhombic antenna |  Optimized sloper antenna for 3.5Mhz |  Multiband Half wave end fed antenna |  80M Trapped dipole antenna |  Short linear loaded HF antenna |   Terminated Mini Loop Antenna |   Signal Booster enhancing Rx |   DIY Active Antenna |   HF Delta Loop Antenna |   Capacitor Loaded Shortened Dipole Antenna |   Aperiodic Multiband Wire Antenna |   GM4JMU Shortened Dipole |   Indoor Antenna for 7 MHz HF Band |   Shorty Forty Antenna |   Building End Fed Half Wave antenna |   Shortened G5RV Antenna |   Loaded Loop Antenna |   Twin Delta Loop Antenna |   Multiband G5RV Antenna |   Shortened Inverted V Antenna |   Reduced Size 40M Antenna |   Morgain Antenna |   Wideband CMC Choke |   Shortened 40-Meter Delta Loop |   RA9SUS Simple Loop Antenna |   RW4HFN Balcony Antenna |   W5GI Multiband Collinear Antenna |   Bazooka Coaxial Dipole Antenna |   9:1 UN-UN |   4:1 UN-UN |   20–40–80 Meter Loaded Multiband Antenna |   Multiband Dipole Antenna |   Double Bazooka Antenna |   Moxon Beam Antenna |   HF Half Loop Antenna |   Lazy-H Antenna |   94-Foot Multi Band Doublet |   W3DZZ Multi-Band Antenna |   80m Magnetic Loop |   Fan Dipole Antenna |   The Half Square Antenna

WebFT8: Running FT8 Straight From Your Browser

WebFT8: Running FT8 Straight From Your Browser: WebFT8 brings FT8 decoding, waterfall display, and logging into your browser. Here's how it works and what it means for portable ham radio operators.

Building Sovina 40M Class E CW Transmitter with BS170 MOSFETs

The Sovina 40m Class-E CW Transmitter is a compact and highly efficient HF transmitter designed specifically for amateur radio operators who enjoy homebrew QRP equipment. This circuit is based on the original work by PY2OHH (Roberto S. Soria) and has become popular due to its simplicity, excellent efficiency, and clean RF output. This CW Transmitter is particularly noted for its reliability and performance.

Building Sovina 40M Class E CW Transmitter with BS170 MOSFETs

ATS Mini Firmware Now Supports LILYGO T-Embed SI4732

ATS Mini Firmware Now Supports LILYGO T-Embed SI4732: ATS Mini firmware v2.34 now includes experimental support for the LILYGO T-Embed SI4732 receiver. Here is what the hardware does, how ATS Mini firmware works,