M0TBX Logo Mike Zero Tango Bravo X-ray M0TBX

Latest adventures posts

Building an ATU-100 Automatic Antenna Tuner (N7DDC Design)

2026-01-17 · 3 min read

Automatic antenna tuners are one of those pieces of equipment that quickly become indispensable, particularly if you enjoy experimenting with antennas or operating portable.

Building and Testing a Modified Digitenna

2026-01-02 · 3 min read

Recently I came across a modified Digitenna design on Printables

Exploring 4 Metres – A New Local Opportunity

2026-01-01 · 2 min read

Recently, I noticed that my local repeater group has added a 4 metre (70 MHz) parrot repeater.

Resurrecting My Yaesu FT-8900: A Long-Overdue PA Repair

2025-12-02 · 2 min read

Some years back, my trusty Yaesu FT-8900 suddenly developed a frustrating problem—it had stopped transmitting entirely.

Rebuilding a 1960s Antenna Tuning Unit — Converting from SPC to T-Match

2025-10-29 · 1 min read

After years of gathering dust, my vintage Amateur Radio Antenna Tuning Unit (ATU) from the 1960s has finally been given a new lease of life.

📻 New Addition to the Shack: Yaesu FTDX10

2025-10-16 · 2 min read

I’m thrilled to share that I’ve added a new HF radio — the Yaesu FTDX10 — to my shack! 🎉

Current propagation conditions

(Thanks to Paul L Herrman N0NBH)

The Solar Flux Index (SFI) indicates how strongly the Sun is ionizing the upper atmosphere; higher values (typically above about 100) generally support better long-distance HF propagation on the higher bands such as 15 m, 12 m and 10 m. The A index is a daily measure of overall geomagnetic disturbance: low values (0–10) mean a stable ionosphere and usually better, more consistent HF conditions. The K index is a short-term (3-hourly) measure of geomagnetic activity; low K (0–2) is ideal, while higher values (4 and above) indicate increasing geomagnetic storms that can cause fading, noise and band closures, especially on the higher HF bands and polar paths.

FAQ

What is Amateur Radio?

Amateur Radio, also known as Ham Radio, is a hobby that involves using designated radio frequencies for non-commercial exchange of messages, wireless experimentation, self-training, private recreation, and emergency communication.

How do I get started with Amateur Radio?

To get started with Amateur Radio, you typically need to obtain a license from your country's telecommunications authority. This usually involves passing an exam that covers basic electronics, radio theory, and regulations. Joining a local amateur radio club can also be very helpful.

What equipment do I need for Amateur Radio?

The basic equipment needed for Amateur Radio includes a transceiver (a device that can both transmit and receive radio signals), an antenna, and a power supply. Additional accessories like microphones, headphones, and logging software can enhance your experience.

What are the different modes of communication in Amateur Radio?

Amateur Radio operators use various modes of communication including voice (FM/SSB), Morse code (CW), digital modes (like FT8, PSK31), and satellite communications. Each mode has its own advantages and applications.

Can I communicate internationally with Amateur Radio?

Yes, one of the exciting aspects of Amateur Radio is the ability to communicate with operators around the world. Depending on your equipment and conditions, you can make contacts across continents using various frequencies and modes.

Are there any age restrictions for becoming an Amateur Radio operator?

There are generally no age restrictions for obtaining an Amateur Radio license. Many countries allow individuals of all ages to take the licensing exam and become licensed operators.

What are some common activities in the Amateur Radio community?

Common activities include participating in contests, joining nets (scheduled on-air meetings), experimenting with new technologies, building antennas and equipment, and providing emergency communications during disasters.

How can I find local Amateur Radio clubs or groups?

You can find local Amateur Radio clubs through national organizations like the ARRL (American Radio Relay League) in the US or RSGB (Radio Society of Great Britain) in the UK. Online forums and social media groups can also be useful resources.