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Building the FBK Sleeve Antenna for VHF/UHF Amateur radio vu3dxr.in/building-the...
Building the FBK Sleeve Antenna for VHF/UHF Amateur radio
Build a compact dual-band FBK sleeve antenna for VHF/UHF bands from coax cable. Simple, efficient, and ideal for portable ham radio use.
vu3dxr.in
November 21, 2025 at 5:42 AM
Building the FBK Sleeve Antenna for VHF/UHF Amateur radio vu3dxr.in/building-the...
ZED Dipole Antenna – A Simple and Smart Design for VHF/UHF vu3dxr.in/zed-dipole-a...
ZED Dipole Antenna – A Simple and Smart Design for VHF/UHF
The ZED Dipole Antenna is a smart, compact, and highly effective antenna that any radio enthusiast can build at home, excellent choice for VHF and UHF
vu3dxr.in
November 21, 2025 at 5:29 AM
ZED Dipole Antenna – A Simple and Smart Design for VHF/UHF vu3dxr.in/zed-dipole-a...
Complete Guide to Flight Tracking with RTL-SDR: Multi-Feeding Setup vu3dxr.in/complete-gui...
Complete Guide to Flight Tracking with RTL-SDR
how to set up your own aircraft tracking station using an RTL-SDR dongle and contribute data to multiple flight tracking services simultaneously.
vu3dxr.in
November 21, 2025 at 5:24 AM
Complete Guide to Flight Tracking with RTL-SDR: Multi-Feeding Setup vu3dxr.in/complete-gui...
Separating Signal from Static: Common Myths and Facts About Radio Antennas vu3dxr.in/separating-s...
Common Myths and Facts about Radio Antenna
We debunk the biggest myths about radio antennas, SWR, resonance, and gain for HF, VHF, and UHF systems. Learn the facts about antenna efficiency.
vu3dxr.in
November 20, 2025 at 10:45 AM
Separating Signal from Static: Common Myths and Facts About Radio Antennas vu3dxr.in/separating-s...
145 MHZ Delta Loop VHF Antenna vu3dxr.in/145-mhz-delt...
145 MHZ Delta Loop VHF Antenna
Build your own Delta Loop VHF antenna for 145 MHz with our clear diagram, dimensions, instructions, explains construction, feed point, and tuning tips.
vu3dxr.in
November 20, 2025 at 9:38 AM
145 MHZ Delta Loop VHF Antenna vu3dxr.in/145-mhz-delt...
Building a Quarter-Wavelength Coaxial Collinear Antenna for 2 Meters vu3dxr.in/building-a-q...
Build a Quarter-Wave Coaxial Collinear Antenna for 2M
Learn how to build a high-gain 2 Meter COCO antenna using quarter-wave coax sections for strong VHF performance. Coaxial Collinear Antenna for 2 Meters
vu3dxr.in
November 20, 2025 at 5:51 AM
Building a Quarter-Wavelength Coaxial Collinear Antenna for 2 Meters vu3dxr.in/building-a-q...
UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide vu3dxr.in/ur0gt-broadb...
UR0GT Broadband Avia Antenna: Ultimate Wideband VHF Antenna
Detailed guide to building UR0GT Broadband Avia Antenna modified by RW4HVN. Covers dimensions, design principles, SWR performance, construction details
vu3dxr.in
November 20, 2025 at 5:30 AM
UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide vu3dxr.in/ur0gt-broadb...
ATS Mini vs ATS20+ Technical Comparison: Si4732 Limitations Exposed vu3dxr.in/ats-mini-vs-...
vu3dxr.in
November 19, 2025 at 11:41 AM
ATS Mini vs ATS20+ Technical Comparison: Si4732 Limitations Exposed vu3dxr.in/ats-mini-vs-...
Simple audio compressor for SSB HF Radio rigs vu3dxr.in/simple-audio...
Simple audio compressor for SSB HF Radio rigs
Simple audio compressor is a device that reduces the dynamic range of the audio signal. It makes the loud parts of signal quieter and quiet parts of the signal louder.
vu3dxr.in
November 19, 2025 at 11:34 AM
Simple audio compressor for SSB HF Radio rigs vu3dxr.in/simple-audio...
Dynamic speech compressor with audio preamplifier vu3dxr.in/dynamic-spee...
Dynamic speech compressor with audio preamplifier
Dynamic speech compressor or simply audio compression is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds
vu3dxr.in
November 19, 2025 at 11:27 AM
Dynamic speech compressor with audio preamplifier vu3dxr.in/dynamic-spee...
Tiny FM Transmitter with Just a Few Easy-to-Find Components vu3dxr.in/tiny-fm-tran...
Tiny FM Transmitter with Just a Few Easy-to-Find Components
Learn how to build a compact Tiny FM transmitter using 2N3904, a few passive parts, and a simple air-core coil. Perfect for DIY electronics enthusiasts
vu3dxr.in
November 19, 2025 at 6:49 AM
Tiny FM Transmitter with Just a Few Easy-to-Find Components vu3dxr.in/tiny-fm-tran...
Build Your Own 90MHz Crystal Controlled FM Transmitter vu3dxr.in/build-your-o...
Build Your Own 90MHz Crystal Controlled FM Transmitter
A crystal controlled FM transmitter is a radio frequency circuit that uses quartz crystal oscillator to generate a stable, precise frequency for FM transmission
vu3dxr.in
November 19, 2025 at 6:22 AM
Build Your Own 90MHz Crystal Controlled FM Transmitter vu3dxr.in/build-your-o...
Turning the NXP TEF6686 Car-Radio Chip into a Versatile Multiband Receiver vu3dxr.in/turning-the-...
Turning NXP TEF6686 Car-Radio Chip into a SDR Radio
Turn a car-radio tuner chip NXP TEF6686 and ESP32 into a powerful, low-cost SDR receiver for FM, AM, and shortwave bands with open-source firmware.
vu3dxr.in
November 19, 2025 at 5:57 AM
Turning the NXP TEF6686 Car-Radio Chip into a Versatile Multiband Receiver vu3dxr.in/turning-the-...