DIY Antennas, QRP, SDR & Ham Radio Projects from VU3DXR
Watch and learn with a specialized collection of amateur radio and electronics videos at vu3dxr.in. This category features step-by-step visual tutorials, SDR demonstrations, and technical guides on antenna construction and radio operation. Perfect for hobbyists seeking practical, hands-on demonstrations to enhance their DIY radio projects and technical expertise.
Making printed circuit boards There are many ways to produce your own printed circuit boards. Small boards for DC switching circuits are easy to make because neither the size nor the shape of the copper foil traces is critical. Boards containing many digital ICs are considerably harder to lay out and etch. There are also […]
Colombo International Radio Tamil service – Inaugural day transmissions Frequency – 873khz Time – 7.00 am to 8.00 am The 872 kHz frequency represents a fascinating chapter in the story of Tamil broadcasting from Sri Lanka, though the actual frequencies used by the Sri Lanka Broadcasting Corporation (SLBC) for their international Tamil service are slightly […]
VWN Vasanth HF net Reception at 7123.4 khz RX Hardware – MSI SDR Dongle Antenna – 66 Feet EFHW The VWN Vasanth HF net operating on 7123.4 kHz represents part of the vibrant amateur radio community in South Asia. This frequency falls within the 40-meter amateur band, which is ideally suited for regional communications across […]
Charminar net at 7080khz RX Hardware – MSI SDR Dongle Antenna – 66 Feet EFHW The Charminar Net operating on 7080 kHz stands as one of the prominent regional amateur radio networks in Southern India, serving operators across Kerala, Tamil Nadu, and Andhra Pradesh from 7:30 to 9:00 AM. Named after the iconic Charminar monument […]
KTWR DRM Transmission Reception Day – 16.01.2022,sunday, 4.00PM IST,10.30 UTC 15200 kHz DRM Mode Location – Krishnagiri 635108 Equipment – MSI.SDR Dongle Software -Sdruno 1.4 & DREAM Decoder Antenna – 66 feet longwire antenna tuned for amateur bands Operating from their transmitting facility on the island of Guam, KTWR utilizes powerful shortwave transmitters to […]
AIR MUMBAI DRM Reception in my listening post at Krishnagiri(TN) using MSI SDR dongle. KTWR Dxers diary DRM Reception with same set up available here.
All India Radio – Rajkot DRM channel 1071 khz – medium wave band Reception noted in my MSI SDR dongle…good signal with occasional break in audio. Location – Krishnagiri 635108 Equipment – MSI.SDR Dongle Software –Sdruno 1.4 & DREAM Decoder Antenna – 66 feet Longwire antenna tuned for amateur bands
Belgaum HF net reception monitored in my ubitx3 Receiver – Ubitx v3 Transceiver, 66 ft Endfed Halfwave antenna Belgaum’s strategic location in northern Karnataka, near the borders of Maharashtra and Goa, makes it an ideal hub for regional HF communications. The city’s elevated geography and relatively low RF noise environment contribute to excellent propagation conditions, […]
Belgaum net in 7050 khz Monitored in my GEK 2X HF Transceiver at my krishnagiri qth. The Belgaum Net on 7.050 MHz is one of the popular morning HF amateur radio nets in India, operating alongside other well-known nets like the Charminar Net on 7.080 MHz. These nets typically run during the early morning […]
ubitx3 with nextion display Demo of ubitx3 with nextion display reception in my shack. The uBITX v3, developed by Farhan VU2ESE, serves as an excellent foundation for this upgrade. Built around the Arduino Nano platform, this QRP transceiver covers all HF amateur bands from 80 to 10 meters with approximately 10 watts output power. The […]