Amateur Radio Kits.In

Amateur Radio Kits.In Amateur Radio Kits by VU3SUA Sunil Lakhani from India Amateur Radio Kits.iIn is providing amateurs around the world with Ham radio kits. Built and Unbuilt kits

We provide the following kits.
1. Bitx Amateur Radio SSB TCVR Kits
2.Test And measuring Instruments
3.Printed Circuit Boards
4.Spare Parts
5.Antennas.
6.

MOSFET Linear Amplifier has capability to deliver up to 300W for 50MHz. The circuit built based the couple of MOSFET ARF...
29/10/2025

MOSFET Linear Amplifier has capability to deliver up to 300W for 50MHz.

The circuit built based the couple of MOSFET ARF448A and ARF448B. Circuit Design:

The complete project details available in comments section.Check for the link

The easy Bitx an easy to build dual band transceiver for 20 Meters and 40 Meter Bands . SSB Qrp 3 to 4 watts .If you wan...
29/10/2025

The easy Bitx an easy to build dual band transceiver for 20 Meters and 40 Meter Bands . SSB Qrp 3 to 4 watts .

If you want to build this kit then give a like and comment yes .

We are working to open sale of this kit .

If you don't know what 3I/Atlas is you are hibernating . Keep your radios tuned it's possible you may tune into somethin...
29/10/2025

If you don't know what 3I/Atlas is you are hibernating .

Keep your radios tuned it's possible you may tune into something you never dreamt of, if your radio tuned into something unexpected from the visitor .

An E-Book on being enthusiast in building antennas.The Whispering Wire: A Ham's Quest for the Invisible  Logline: A recl...
29/10/2025

An E-Book on being enthusiast in building antennas.

The Whispering Wire: A Ham's Quest for the Invisible

Logline: A reclusive ham radio operator, driven by a lifelong fascination with the invisible forces connecting the world, dedicates his life to the obsessive, often baffling, pursuit of the perfect antenna, discovering that the true signal lies not just in the ether, but within himself.

Chapter 1: The Static and the Spark

Elias Thorne’s world was a symphony of static. Not the frustrating, crackling kind that made conversation impossible, but a living, breathing hum that permeated his small, cluttered workshop. It was the sound of the planet breathing, the murmur of distant conversations, the whispers of the ionosphere. At sixty-five, his fingers, gnarled from decades of soldering and fiddling, still possessed a surgeon’s precision. His eyes, behind thick spectacles, held the faraway gaze of someone perpetually listening for a signal just beyond the audible.

His workshop, nestled in the attic of his modest bungalow, was a testament to a life devoted to ham radio. Reels of wire, some thick and insulated, others impossibly fine, spilled from shelves. Soldering irons, their tips worn smooth, lay beside spools of solder and cans of flux. Old oscilloscopes, their screens flickering with ghostly green lines, shared space with vacuum tubes that glowed with an inner fire. And everywhere, the antennas. They jutted from the roof like metallic trees, twisted around poles, draped across the garden, and even hung precariously from the eaves. Each one was a testament to Elias’s relentless experimentation, a silent monument to a quest without end.

He’d been bitten by the radio bug early, a skinny ten-year-old in the post-war era, mesmerized by the magic of the crystal radio set. The way a voice, a melody, could travel miles through the air, unseen and unheard until it was coaxed into existence by a coil of wire and a sensitive ear. It wasn't just the voices, though. It was the how. The invisible forces, the electromagnetic waves, that he couldn't see but could feel in the tingling sensation of his fingertips when near a strong transmitter, or the subtle hum his own rudimentary antenna generated.

His family had never quite understood his obsession. His father, a pragmatic accountant, saw it as a childish hobby that Elias refused to outgrow. His mother, a gentle soul, worried about the "odd contraptions" cluttering their property. But Elias found solace in the predictable laws of physics that governed his hobby, a stark contrast to the unpredictable currents of human emotion.

Now, retired from a quiet career as a librarian, Elias had the time. The time to truly dedicate himself to the ultimate antenna. The one that would cut through the noise, that would connect him to the farthest reaches of the globe with clarity and strength. The one that, in his deepest heart, he believed might even offer a glimpse into something more profound.

Today, his focus was a particularly ambitious project: a multi-band, directional Yagi antenna, designed to capture signals from the southern hemisphere with unprecedented efficiency. It was a complex beast of aluminum elements and coaxial cable, promising to put his humble station on the map for those seeking contact across the vast Pacific. He’d spent months poring over diagrams, calculating impedance, and dreaming of the day he’d hear a faint "CQ" from a DXpedition on a remote island.

He’d already built dozens of antennas, each with its own story. The simple dipole that had first brought him the thrill of two-way communication. The long wire, strung precariously between two oak trees, that had picked up a faint signal from a storm chaser in Kansas. The attic-mounted loop, which had yielded surprising success on the lower frequencies but had been a nightmare to rotate. Each failure, each partial success, was a stepping stone. Each wire cut, each solder joint made, was a prayer whispered into the ether.

He carefully tightened a clamp on one of the Yagi’s elements, his brow furrowed in concentration. The sun, a pale disc through the dusty workshop window, cast long shadows. Outside, the world went about its business, oblivious to the silent battle Elias was waging against the invisible world. He was a craftsman, an engineer, a dreamer, all rolled into one, chasing a whisper on the wind. And he knew, with the certainty of a man who had spent his life listening, that the next signal, the one that would truly change everything, was just out there, waiting to be found.

Chapter 2: The Symphony of Wire and Wonder

The Yagi antenna, a gleaming silver skeleton against the bruised twilight sky, was a magnificent, if somewhat intimidating, sight. Elias had spent weeks on its construction, his hands blistered, his back aching, but his spirit soaring with each successful connection. He’d consulted with fellow hams online, debated theory in forums, and meticulously followed the blueprints he’d painstakingly drawn. It was his magnum opus, a testament to his years of learning and experimentation.

He’d mounted it precariously on a tall mast erected in his backyard, a swirling vortex of aluminum elements that promised to funnel distant signals directly into his receiver. The coax cable snaked down from the antenna, a thick umbilical cord connecting the heavens to his earthly workshop.

The first real test came on a crisp autumn evening. The air was still, carrying the scent of decaying leaves and distant woodsmoke. Elias sat at his operating desk, bathed in the soft glow of his transceiver. His fingers hovered over the microphone, a nervous tremor running through him. He’d made sure every connection was secure, every component calibrated. This was it.

He keyed the microphone, his voice a little shaky. "CQ, CQ, CQ. This is Alpha-Kilo-Seven-Uniform-Zulu. Elias. Calling CQ and listening."

He released the transmit button and leaned closer to the speaker, his breath held tight. The usual symphony of static filled the air, a familiar comfort. He adjusted the tuning k**b, his ears straining. Then, amidst the hiss and crackle, a faint, almost ethereal voice emerged. It was a whisper, barely audible, but it was there.

"...Kilo-Echo-Six-Bravo-November... India... Victor... Seven..."

Elias’s heart leaped. It was faint, incredibly faint, but it was distinct. He’d heard of K6BNI, an operator rumored to be in the remote Australian Outback. To hear him, with this new antenna? It was a triumph.

He carefully adjusted the antenna’s direction, a slow, deliberate turn of the rotatable mast, guided by the faintest hint of a stronger signal. The Yagi responded with a satisfying, almost imperceptible groan. He transmitted again, his voice now firm with newfound confidence.

"Kilo-Echo-Six-Bravo-November, this is Alpha-Kilo-Seven-Uniform-Zulu. Elias. Strong copy, very strong copy. How do you read me in Australia?"

A moment of silence. Then, the voice, clearer now, though still carrying the distant echo of the planet.

"...Alpha-Kilo-Seven-Uniform-Zulu, this is Kilo-Echo-Six-Bravo-November. Copy you five by nine! Wow! I haven't heard anyone from your region with such clarity in years! What is your antenna setup?"

Elias grinned, a wide, genuine smile that creased his aged face. "A little bit of wire and a lot of hope, my friend," he replied. "And a newly erected Yagi. She's performing beautifully tonight."

They chatted for nearly an hour, swapping operating conditions, discussing the unique challenges of reaching each other across the vast expanse of the Pacific. Elias learned that K6BNI, a man named Arthur, was indeed in the Outback, his station as isolated as Elias’s own workshop was cluttered. They were two solitary voices, bridging continents with invisible threads.

As the conversation ended, and Elias signed off with Arthur, a profound sense of satisfaction washed over him. It wasn't just about the technical achievement, though that was immense. It was the connection. The feeling of bridging the immense distance, of being heard and understanding, across thousands of miles.

But the victory was fleeting. The next day, the atmospheric conditions had shifted. Arthur's signal was all but gone, swallowed by the capricious whims of the ionosphere. Elias spent hours tinkering, adjusting, his initial elation replaced by a familiar gnawing dissatisfaction. The Yagi, while magnificent, was not a magic bullet. The world of radio waves was a constantly shifting, unpredictable landscape.

He looked out at the antenna, a silent, stoic sentinel. It was a beautiful piece of engineering, but it was merely a tool. The true magic, he realized, lay not just in the metal and wire, but in the understanding of the forces it sought to harness. And there were still so many forces, so many whispers, to understand. His quest was far from over.

Chapter 3: The Echoes in the Attic

The initial euphoria of the long-distance contact with Arthur had faded, replaced by Elias’s perpetual state of analytical inquiry. The Yagi was good, exceptionally good, but Elias felt a persistent itch, a nagging suspicion that there was still untapped potential. He found himself staring at the antenna’s specifications, sketching new configurations in his worn notebooks, his mind racing with possibilities.

He began to experiment with different feed lines, different matching units. He’d heard whispers in online forums about ‘resonant traps’ and ‘trap dipoles,’ and his curiosity was piqued. The idea of an antenna that could efficiently operate on multiple bands without the need for complex switching was alluring. He envisioned a single, elegant wire, capable of reaching out to the world on a multitude of frequencies.

His attic workshop became his laboratory once more. He unearthed old textbooks on electromagnetic theory, his spectacles perched on his nose as he reread complex equations. He’d always been more of a hands-on tinkerer than a theoretical physicist, but now, he felt the need to delve deeper, to understand the fundamental principles that governed his radio waves.

One rainy afternoon, while researching antenna designs, he stumbled upon an old, obscure paper by a forgotten pioneer in amateur radio. The paper discussed the concept of ‘harmonic antennas,’ specifically how the length of a wire antenna could be manipulated to resonate on multiple harmonic frequencies. The author, a mysterious figure named Silas Croft, spoke of antennas that would ‘sing’ with the symphony of the upper atmosphere, not just the fundamental tones.

Silas Croft… the name resonated with Elias. He vaguely recalled hearing of him in his early ham radio days, a bit of a legend, a recluse who had achieved remarkable results with seemingly unconventional antennas. Croft had purportedly built antennas that were, by conventional standards, impossibly short, yet performed with astonishing efficiency.

Intrigued, Elias delved deeper, searching for more information about Silas Croft. He found scattered references, forum posts, and even a faded photograph of a man with a wild beard and the piercing eyes of an obsessive. Croft had disappeared decades ago, rumored to have gone completely off-grid, dedicating himself solely to his antenna experiments.

The more Elias read, the more he felt a kinship with this enigmatic figure. Croft’s approach seemed to mirror Elias’s own intuition – a belief that the established ‘rules’ of antenna theory, while valid, were not the whole story. There were subtle nuances, hidden efficiencies, waiting to be discovered.

He began to experiment with shorter wavelengths, with resonant lengths that defied conventional wisdom. He started building small, compact antennas, experimenting with different materials and configurations. He braided wires, twisted them into intricate patterns, and even incorporated small, non-conductive elements into his designs, much to the bewilderment of his online ham radio colleagues.

"What in the world are you building now, Elias?" asked a fellow operator, Bob, on a video call, his eyes wide as Elias held up a strange, coiled contraption.

Elias chuckled. "It's a little experiment, Bob. Exploring some... unconventional resonance."

Bob scratched his head. "Unconventional is one way to put it. Looks like a bird's nest that fell into a pretzel factory."

Despite the skepticism, Elias pressed on. He was driven by a hunch, a feeling that Silas Croft had been onto something profound. He spent hours in his workshop, the air thick with the smell of solder and dust, his hands moving with practiced grace. He was no longer just building antennas; he was trying to understand their very soul.

One evening, after weeks of meticulous work, he connected a small, unobtrusive loop antenna, no larger than a dinner plate, to his transceiver. It was made of a peculiar alloy wire he’d managed to source, wound into a precise spiral. He keyed the microphone.

"CQ, CQ, CQ. This is Alpha-Kilo-Seven-Uniform-Zulu."

The static was there, but it felt different, less chaotic. He turned the tuning k**b, and then, as if a veil had been lifted, a clear, strong signal emerged. It was a voice from South America, a ham radio operator in Argentina, a contact Elias had never been able to make with his previous, larger antennas.

"...Alpha-Kilo-Seven-Uniform-Zulu, this is Lima-November-Four-Mike-Echo. Your signal is five-by-seven, incredibly clear!"

Elias gasped. His heart pounded in his chest. This tiny, unassuming loop, inspired by the whispers of Silas Croft, was outperforming his massive Yagi on certain frequencies. It was a revelation. The invisible world, it seemed, was far more complex and subtle than he had ever imagined. He was beginning to understand that the ‘perfect’ antenna wasn’t necessarily the biggest or the most complicated, but the one that truly understood the song of the ether.

Chapter 4: The Signal Within

The success of the miniature loop antenna sent ripples of excitement through Elias’s quiet world. He’d made dozens of contacts with operators across the globe, forging friendships with people he’d never meet, united by the invisible threads of radio. His online colleagues, initially skeptical, were now asking for his designs, eager to replicate his seemingly miraculous results.

Yet, amidst the accolades, a subtle shift began to occur within Elias. The thrill of distant contacts, while still present, was no longer the sole driving force. He found himself spending more time simply listening, tuning into the ambient noise of the radio spectrum. He noticed patterns, rhythms, subtle variations that had previously gone unnoticed. It was as if the antennas, by opening him up to the external world, were also opening him up to something within himself.

He began to associate certain antenna configurations with specific ‘feelings’. The Yagi, with its directional focus, felt purposeful, driven. The loop, with its omnidirectional reach, felt like an embrace. He found himself talking to his antennas, not just as inanimate objects, but as companions in his quest.

One evening, while listening to a particularly strong signal from a station in Japan, Elias noticed something peculiar. The static, usually a constant presence, seemed to ebb and flow in sync with the distant operator’s voice. It was almost as if the signal itself was creating a subtle emotional resonance within him. He felt a pang of loneliness, followed by a surge of connection.

He sat back in his chair, the glow of the transceiver illuminating his contemplative face. He realized that his quest for the perfect antenna had become more than just a technical pursuit. It had become a journey of self-discovery. He was learning to tune into more than just radio waves; he was learning to tune into the subtle vibrations of emotion, of shared experience.

He started to experiment with antennas that were less about brute force and more about nuance. He experimented with different materials for his elements, less conductive metals, even natural fibers. He discovered that the subtle differences in conductivity and resonance could create distinct ‘flavors’ of signals, some feeling warm and inviting, others sharp and precise.

He even began to notice the effect his own emotional state had on his transmissions. When he was frustrated or anxious, his signals seemed to be weaker, more prone to interference. When he was calm and focused, his contacts were clearer, more stable. He began to incorporate meditative practices into his operating routine, finding that a clear mind led to a clear signal.

His attic workshop, once a sanctuary of scientific inquiry, began to feel more like a meditation chamber. The hum of the radio equipment blended with his own quiet breathing. The intricate wiring of his antennas seemed to mirror the intricate pathways of his own mind.

One day, a young ham radio operator, a teenager named Maya, contacted him. She was struggling with her own antenna experiments, feeling overwhelmed and discouraged. Elias listened patiently, not just to her technical questions, but to the underlying frustration in her voice.

"Maya," he said, his voice gentle, "the antenna is not just about the wire and the metal. It’s about the intention you put into it. It’s about listening not just with your ears, but with your whole being."

He shared his own journey, his early struggles, his later discoveries. He spoke not just of impedance and resonance, but of the quiet whispers of intuition, the subtle signals that guided him. Maya listened intently, her initial despair slowly transforming into a quiet fascination.

Days later, Maya contacted him again. Her voice was filled with a newfound excitement. "Elias," she exclaimed, "you were right! I tried focusing on the feeling of the signal, not just the strength. And it worked! I made a contact I never thought possible!"

Elias smiled, a profound sense of peace settling over him. He had spent his life chasing the invisible, and in doing so, he had discovered a signal far more powerful than any he had ever transmitted or received – the signal of connection, of understanding, of the quiet wisdom that resides within us all. The whispering wire, he realized, was not just a conduit for radio waves, but for a deeper truth, a truth that resonated in the silence between the static, in the echo of a distant voice, and most importantly, within the heart of the listener. His quest for the perfect antenna had led him to the perfect understanding of himself.

Give a like and forward this story if it resonates with your frequency.


A Single Tube Regenerate Receiver for different bands plug in . Details of project in comments. Follow the link to the p...
28/10/2025

A Single Tube Regenerate Receiver for different bands plug in .

Details of project in comments. Follow the link to the project.


Checking the Standing Wave Ratio (SWR) is essential for a new ham radio setup to ensure maximum power transfer from your...
28/10/2025

Checking the Standing Wave Ratio (SWR) is essential for a new ham radio setup to ensure maximum power transfer from your radio to your antenna and prevent damage to your transmitter. SWR is a measure of the impedance match between your radio and the antenna system.

The most common way to check SWR is by using an external SWR meter or an Antenna Analyzer. Many modern amateur radios also have a built-in SWR meter.

SWR Measurement Procedure
The general steps for checking SWR with an external meter are:

1. Connection
Connect the Transmitter/TX port on the SWR meter to the output of your radio using a short coaxial jumper cable.

Connect the Antenna/ANT port on the SWR meter to the coaxial cable that runs to your antenna.

Note: Ensure the SWR meter is rated for the frequency range and power level you will be using.

2. Preparation
Turn on your radio and the SWR meter (if it's an external unit).

Select an unused frequency in the band you wish to test.

Set your radio to a low power setting (e.g., 5 to 10 watts) and use a continuous carrier mode like FM, AM, or CW (Single Sideband, SSB, will not work well for this test as the power level is not constant).

3. Calibration (for analog meters)
Set the SWR meter's function switch to FWD (Forward Power) or CAL (Calibrate).

Key your transmitter (start transmitting).

Adjust the Calibration k**b on the SWR meter until the needle aligns precisely with the CAL or SET mark on the meter's scale.

Unkey the transmitter.

4. Reading SWR
Switch the SWR meter's function to SWR (Standing Wave Ratio) or REF (Reflected Power), or a similar SWR function depending on the meter type.

Key the transmitter again.

The needle will swing and indicate your SWR value (e.g., 1.5, 2.0).

Unkey the transmitter and announce your call sign to satisfy identification requirements, if necessary for the length of your test.

5. Adjustments
Check the SWR at the low, middle, and high ends of the frequency band you plan to use.

An ideal SWR is 1.0:1, but anything under 1.5:1 is excellent and generally considered the target for best performance.

An SWR above 2.0:1 or 2.5:1 indicates a significant mismatch and should be corrected to prevent poor performance and potential damage to your radio.

If the SWR is high, you will need to tune your antenna (e.g., by adjusting its physical length) or use an antenna tuner to correct the impedance mismatch.

Acceptable SWR Ranges

SWR Reading Indication Recommended Action

1.0:1 - 1.5:1 Excellent. Very efficient power transfer. Good to go!

1.5:1 - 2.0:1 Acceptable (Room for improvement). Still provides adequate performance. Try to tune for lower, but often acceptable.

2.0:1 - 3.0:1 Poor. Performance will be reduced. You should correct this by tuning the antenna or using a tuner. Operating at this SWR for extended periods is generally not advised.

3.0:1 and above Critical. Significant reflected power. Immediately stop transmitting and fix the issue (check connections, cable, and antenna tuning). High SWR in this range can easily damage the final amplifier stage of your radio.

🎖️ Why the ICOM IC-7760 Won Hearts (and Awards!) 🎙️The new ICOM IC-7760 HF/50MHz Transceiver is a masterpiece of smart d...
28/10/2025

🎖️ Why the ICOM IC-7760 Won Hearts (and Awards!) 🎙️

The new ICOM IC-7760 HF/50MHz Transceiver is a masterpiece of smart design and performance!

✨ What makes it special:

🔹 Modular Design – Control head + RF deck linked by LAN cable for quiet, flexible setup.
🔹 Dual Displays & Receivers – Work two bands at once with crystal-clear spectrum scope.
🔹 Touch + K**b Interface – Smooth, intuitive control for pros and contesters alike.
🔹 200W SDR Power – Clean signal, high dynamic range, and cool operation.
🔹 Remote Ready – Operate from anywhere via network connection!

Modern looks, rock-solid build, and pro-grade usability — the IC-7760 truly defines Good Design in Amateur Radio. 🎧📡

What pure magic ?A Qrp to Qrp Contact .
28/10/2025

What pure magic ?

A Qrp to Qrp Contact .

The worlds smallest cw transciever.Worth trying it out !Design PA2OHH           .
28/10/2025

The worlds smallest cw transciever.

Worth trying it out !

Design PA2OHH

.

I would like to make some equipment in wood, since RF Equipment may not be suitable for wood I tried to see how our line...
27/10/2025

I would like to make some equipment in wood, since RF Equipment may not be suitable for wood I tried to see how our linear Amplifier would look if it was made 30 years back in wood .

Both pictures are given .

1. The present one in back almunium Enclosure the WA2EBY HF Amplifier .

2. The second is my concept that how would it have looked in wood .
I made this image with ai by converting the original image .

You see we like to experiment on different ideas so new things can be bought to our followers .

It's possible some guys may not like the content but it's ok .

Like and Dislike are sides of the same coin .

Enjoy if you like our content or do what your thoughts 🤔 say.

The face book has lot of content maybe you would find something to keep you happy and busy ...

73

Are you interested in learning how to programme Atmega 328. Learn what is a bootloader and how to upload firmware and lo...
27/10/2025

Are you interested in learning how to programme Atmega 328. Learn what is a bootloader and how to upload firmware and load in Atmega 328 then we have a very interesting suggestion.

Kindly follow link in comments and find complete details how to start your journey with Atmega 328 and Arduino .

Your ham radio set up depends on your antenna which is it's lifeline .Understand the points below to optimise it .      ...
27/10/2025

Your ham radio set up depends on your antenna which is it's lifeline .

Understand the points below to optimise it .


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Amateur Radio Kits.iIn is providing amateurs around the world with Ham radio kits. We provide the following kits. 1. Bitx ,Bingo,Avala. Ta**us 2.Test And measuring Instruments 3.Printed Circuit Boards 4.Spare Parts 5. Project Case For Bitx- uBITX -Ta**us-Universal Case 6. Built and Unbuilt kits