Advertisement · 728 × 90

Posts by

Preview
Meshtastic 433 MHz : Mastering Meshtastic On 70cm Band Comprehensive guide for ham radio operators on configuring Meshtastic 433 MHz (70cm) band. Learn about hardware, legal compliance, and antenna optimization

Mastering Meshtastic on the 70cm Amateur Band (433 MHz) vu3dxr.in/meshtastic-4...

1 day ago 0 0 0 0
Preview
The ZBitx V2 Has Arrived: Efficiency, Built-in EFHW, And A Wi-Fi Revolution - DXR Electronics Bits Discover the zBitx v2 by Ashhar Farhan (VU2ESE). Explore new hardware features like the built-in EFHW transformer, LDMOS power amplifier, and user interface.

The zBitx v2 Has Arrived: Efficiency, Built-in EFHW, and a Wi-Fi Revolution vu3dxr.in/the-zbitx-v2...

3 days ago 0 0 0 0
Preview
Khanfar Spectrum Analyzer: A Free RTL-SDR Tool Suite A detailed look at the Khanfar Spectrum Analyzer free RTL-SDR tools covering real-time FFT, wideband scanning, CFAR , IQ recording, and radio direction finding

Khanfar Spectrum Analyzer: A Free RTL-SDR Tool Suite Worth Knowing vu3dxr.in/khanfar-spec...

4 days ago 0 0 0 0
Preview
The New Digital Frontier: Meshtastic Vs. MeshCore Deciding between Meshtastic and MeshCore for your off-grid LoRa setup? We compare these two powerhouses through lens of amateur radio. Meshtastic vs. MeshCore

The New Digital Frontier: Meshtastic vs MeshCore for HAM radio vu3dxr.in/the-new-digi...

6 days ago 0 0 0 0
Preview
The Silent Revolution: DRM+ Radio In The FM Bands Discover how DRM Radio in FM Bands revolutionizing global broadcasting in 2026. From xHE-AAC technology to

The Silent Revolution: DRM+ Radio in the FM Bands vu3dxr.in/the-silent-r...

6 days ago 0 0 0 0
Preview
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

Building a Quarter-Wavelength Coaxial Collinear Antenna for 2 Meters vu3dxr.in/building-a-q...

6 days ago 0 0 0 0
Preview
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

Build Your Own 90MHz Crystal Controlled FM Transmitter vu3dxr.in/build-your-o...

1 week ago 0 0 0 0
Preview
Build A Simple FM Band Transmitter Circuit This simple FM band Transmitter circuit offers an excellent starting point for beginners can build this transmitter using common electronic components

Build a Simple FM Band Transmitter Circuit vu3dxr.in/build-a-simp...

1 week ago 0 0 0 0
Preview
Building A DIYMini FM Radio Transmitter Circuit FM Radio Transmitter takes your voice from a microphone and turns it into a r signal. Then, this radio signal can be picked up by any standard FM radio nearby.

Mini FM Radio Transmitter vu3dxr.in/mini-fm-radi...

1 week ago 0 0 0 0
Advertisement
Preview
Meshcore For Ham Radio : Explore Exciting Possibilities Explore Meshcore for ham radio: a low-power, LoRa-based mesh network for local messaging. A complete, impartial guide on hardware, flashing, uses, and limits

Meshcore for Ham Radio: A Simple Start vu3dxr.in/meshcore-for...

1 week ago 0 0 0 0
Preview
DIY Moxon Rectangle Beam Antenna For 10m, 15m, And 20m Bands Build your own DIY Moxon Rectangle Beam Antenna for 10m, 15m, and 20m bands. This step-by-step guide covers dimensions, wire construction, and tuning tips for a compact, high-gain directional antenna ...

DIY Moxon Rectangle Beam Antenna for 10m, 15m, and 20m Bands vu3dxr.in/diy-moxon-re...

1 week ago 0 0 0 0
Preview
Build A High-Sensitivity Regenerative Receiver With 2N7000 MOSFET Build a high-sensitivity Regenerative Receiver using the versatile 2N7000 MOSFET. This DIY guide features a stable, low-noise schematic perfect for shortwave listening (SWL) and amateur radio signals ...

Build a High-Sensitivity Regenerative Receiver with 2N7000 MOSFET vu3dxr.in/build-a-high...

1 week ago 0 0 0 0
Preview
Unlock Exciting Adventures With Meshtastic Ham Radio! Meshtastic ham radio brings LoRa-based off-grid mesh networking. Learn how it works, how to get started, and why emergency comms operators paying attention.

Meshtastic Ham Radio Guide: LoRa Mesh Networking for Emergency and Everyday Use vu3dxr.in/meshtastic-h...

1 week ago 0 0 0 0
Preview
Ultimate Guide To HF Digital Dominance: FT8 Vs FT4 Vs FT2 Comparision of FT8 vs FT4 vs FT2 digital modes. Learn about speed, sensitivity, and bandwidth to optimize your amateur radio DXing and contesting strategies.

The Ultimate Guide to HF Digital Dominance: FT8 vs FT4 vs FT2 vu3dxr.in/ultimate-gui...

1 week ago 0 0 0 0

Multi Band Capacitor Loaded Shortened Dipole Antenna vu3dxr.in/compact-mult...

1 week ago 0 0 0 0
GM4JMU Shortened Dipole Antenna For HF Bands Compact 40m Shortened Dipole antenna design using inductive loading coils for space-limited amateur radio installations, construction and performance details

GM4JMU Shortened Dipole Antenna: Compact Performance for HF Bands vu3dxr.in/gm4jmu-short...

1 week ago 0 0 0 0
Advertisement

Meshtastic Ham Radio Guide: LoRa Mesh Networking for Emergency and Everyday Use vu3dxr.in/meshtastic-h...

1 week ago 1 0 0 0
Preview
FT2 Digital Mode In 2026 - What The Community Really Thinks FT2 digital mode reviewed in 2026 — 3.8-second cycles, real shack experiences, technical trade-offs, and whether it deserves a place in your station

FT2 Digital Mode in 2026 — The Fastest Thing on HF and What the Community Really Thinks vu3dxr.in/ft2-digital-...

1 week ago 0 0 0 0
Preview
UA4HAZ 20 Meter Folded Dipole Antenna Build the UA4HAZ 20 Meter folded dipole antenna. This space-saving HF antenna design uses bent elements to maintain resonance while fitting into smaller yards.

UA4HAZ 20 Meter Folded Dipole Antenna : A Space-Saving HF Design vu3dxr.in/ua4haz-20-me...

1 week ago 0 0 0 0
Preview
Low Height Loop Antenna : A 40-6 Meter Powerhouse Boost HF performance with the Low Height Loop Antenna. Cover 40m–6m using 4m masts and a symmetrical ATU. Ideal for quiet reception and multi-band versatility.

Low Height Loop Antenna : A 40-6 Meter Powerhouse for Modern Hams vu3dxr.in/low-height-l...

2 weeks ago 0 0 0 0
Preview
Explore Exciting Options In Budget Software Defined Radio New to software defined radio? This complete guide compares the best affordable SDRs, explains what to buy first, and shows you what you can do with one

Complete Guide to Budget Software Defined Radio : From $15 Dongles to Serious HF Receivers vu3dxr.in/complete-gui...

2 weeks ago 0 0 0 0
Preview
Thanjavur Fort : From Chola Moat to Ruined Walls This in‑depth article follows Thanjavur fort’s story in strict chronological order, from its early Chola‑Pandya moat to Vijayanagar–Nayak walls, Maratha expansions and British sieges. It also shows ho...

Thanjavur Fort : From Chola Moat to Ruined Walls gingeefort.online/thanjavur-fo...

2 weeks ago 0 0 0 0

Shortened Inverted V Antenna for 80 Meters (3.700 MHz) vu3dxr.in/shortened-in...

2 weeks ago 0 0 0 0
Preview
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

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide vu3dxr.in/ur0gt-broadb...

2 weeks ago 0 0 0 0
Preview
DIY 145 MHz Twin Delta Loop Antenna For Ham Radio Operators - DXR Electronics Bits A complete guide to building 145 MHz Twin Delta Loop antenna with dimensions, construction tips, feeding method, and performance advantages for VHF ham radio.

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators vu3dxr.in/diy-145-mhz-...

2 weeks ago 0 0 0 0
Preview
40m Vertical Antenna: Base-Loaded Design For HF Operation Build an efficient 40m vertical antenna with a 15µH base loading coil and short radiator. Ideal for compact HF setups and portable amateur stations

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation vu3dxr.in/40m-vertical...

2 weeks ago 0 0 0 0
Advertisement
Preview
Build Your Own Indoor Antenna For 7 MHz HF Band - DXR Electronics Bits Discover how to build a compact indoor antenna for 7 MHz using a simple coil-based design. Ideal for amateur radio operators with space constraints

Build Your Own Indoor Antenna for 7 MHz HF Band vu3dxr.in/build-your-o...

2 weeks ago 0 0 0 0
Preview
Compact 40M HF Antennas: Short Dipoles & Short Verticals - DXR Electronics Bits Explore short dipole and vertical antennas for 40 m HF operation—ideal for limited spaces, field setups, and portable ham radio stations. 40M HF Antennas

Compact 40M HF Antennas: Short Dipoles & Short Verticals vu3dxr.in/compact-40m-...

2 weeks ago 0 0 0 0
Preview
The Citadel of the Kaveri: Definitive History of Trichy Rock Fort Rising abruptly from the Kaveri plains, the Tiruchirappalli Rock Fort is a 3.8-billion-year-old geological marvel. This

The Citadel of the Kaveri: Definitive History of Trichy Rock Fort gingeefort.online/the-citadel-...

3 weeks ago 0 0 0 0
Preview
Unlocking The Wonders Of Tropospheric Ducting For Radio Hams Discover secrets of tropospheric ducting for VHF DXing. This guide covers temperature inversions, weather maps strategies to master long-distance propagation.

VHF DXing Secrets: The Ultimate Guide to Tropospheric Ducting for Radio Hams vu3dxr.in/ultimate-gui...

3 weeks ago 0 0 0 0