A Radio Hobbyist's Surprise Find: Sistema To Go Bento Box 1.48L as a Radio Case

Let me start by saying this: I didn’t need another radio case. In fact, I was only heading to the supermarket for a carton of milk—nothing more, nothing less. But then, as I wandered past the kitchenware aisle, I spotted it: a half-price sign glinting under the fluorescent lights. Naturally, I made the mistake of having a look.

There it was: the Sistema To Go Bento Box 1.48L, neatly stacked in various colours. At first glance, it seemed like just another lunchbox, but my mind was already reeling with possibilities.

---

Why It’s Perfect as a Radio Case

The size immediately caught my attention. At 1.48L, it’s compact yet spacious enough for my needs. Once I opened it and saw the adjustable dividers, I knew I had struck gold. These dividers are fantastic for keeping my radio equipment organized—no more tangled wires or accessories sliding around.

And then there’s the yogurt container. It was meant for snacks, but I quickly realized it was the perfect spot for my headphones. Snug, secure, and easy to access.

---

Subtle and Practical

Another bonus is that it blends in more than my previous cases. It looks like a simple lunchbox, not a specialized kit. This subtlety can be an advantage when out and about—no one gives it a second glance.

It also has a bit more space than my last case. Everything just fits that bit better, making it easier to grab what I need without jamming everything in or things getting mixed up. The removeable tray also allows me to place my notepad, pen and aerials under it, with the charger on top.

---

The Downside: Wife’s Discovery

Of course, this new acquisition wasn’t without its challenges. My wife recently stumbled across my stockpile of old cases, bags, and containers—a veritable graveyard of past experiments in storage solutions. Let’s just say she wasn’t thrilled. To make room for this new addition, I’ll have to part with a few of the old ones. (Farewell, faithful but flawed Tassie Devil case!)

---

Could This Be “The One”?

Despite my track record of case-hopping, I’m genuinely thrilled with this find. It checks all the boxes: compact, versatile, discreet, and affordable. Sure, only time will tell if this is truly “the one,” but for now, it feels like a perfect fit.

So, if you’re like me—always on the hunt for the ideal radio case—maybe the Sistema To Go Bento Box 1.48L deserves a spot in your collection. But be warned: you might have to clear some space in the cupboard first.

And remember, next time you’re just going out for milk, stick to the dairy aisle.

Loggings - 27/11/2024

118.1 - TOWER-HOBART

118.7 - TOWER-LTON

123.45 - AIR SIMP

123.8 - ATC-LTON APPROACH

126.4 - HELI RESOURCES

126.5 - ATC-NORTH

126.7 - CTAF

129.5 -  QANTAS

130.35  -  VELOCITY

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

147.000 - VK7RAA-MTARTHUR

158  -  TASRAIL SIMP VHF

161.075  -  ARTEC

162.5 - BORAL

162.6125 - TASRAIL-MTARTHUR

163.025  - LCC MT ARTHUR(D)

163.075  -  LCC FREELANDS(D)

413.35 - LGH SECURITY(D)

438.05  -  VK7RBL-BENLOMOND

438.55 - VK7RJG-MTARTHUR

454.275  -  METRO (TX)

464.275 - METRO ABLES

464.375 - METRO FREELANDS

473.4  -  TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.775  -  UNI SECURITY (DMR)

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.5125  -  UHF CB CH 44

476.525  -  UHF CB CH 5

476.55  -  UHF CB CH 6

476.575  -  UHF CB CH 7

476.6  -  UHF CB CH 8

476.6375  -  UHF CB CH 49

476.675  -  UHF CB CH 11

476.7125  -  UHF CB CH 52

476.75  -  UHF CB CH 14

476.8125  -  UHF CB CH 56

476.8375  -  UHF CB CH 57

476.85 -  UHF CB 18

477.1  -  UHF CB CH 28

477.1375  -  UHF CB CH 69

477.15  -  UHF CB CH 30

477.2  -  UHF CB CH 32

477.25  -  UHF CB CH 34

477.275  -  UHF CB CH 35

477.3125  -  UHF CB CH 76

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.4 - UHF CB CH 40

477.4125  -  UHF CB CH 80

485.25 - CSE CROSS COM

488.55 - CSE CROSS COM

494.925 - LCC SWIMMING

BAOFENG Default Channels

BAOFENG 01 462.125000 CTCSS 69.3Hz

BAOFENG 02 462.225000 CSQ

BAOFENG 03 462.325000 CSQ

BAOFENG 04 462.425000 CTCSS 103.5Hz

BAOFENG 05 462.525000 CTCSS 114.8Hz

BAOFENG 06 462.625000 CTCSS 127.3Hz

BAOFENG 07 462.725000 CTCSS 136.5Hz

BAOFENG 08 462.825000 CTCSS 162.2Hz

BAOFENG 09 462.925000 DCS 025

BAOFENG 10 463.025000 DCS 051

BAOFENG 11 463.125000 DCS 125

BAOFENG 12 463.225000 DCS 155

BAOFENG 13 463.525000 DCS 465

BAOFENG 14 450.225000 DCS 023

BAOFENG 15 460.325000 CSQ

BAOFENG 16 469.950000 CTCSS 203.5Hz

Loggings - 25/11/2024

118.7 - TOWER-LTON

123.8 - ATC-LTON APPROACH

126.5 - ATC-NORTH

126.7 - CTAF

127.3  -  CTAF-GT

129.5 -  QANTAS

130.125  -  JETSTAR-HOBART

130.225  -  JETSTAR-LTON

130.35  -  VELOCITY

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

146.45  -  2H HAM SIMP

146.5 - 2M HAM SIMP

147.000 - VK7RAA-MTARTHUR

156.375  -  MARINE VHF 67

156.4 - MARINE VHF 8

156.475  -  MARINE

156.7 - MARINE VHF 14

156.8  -  MARINE VHF 16

162.5 - BORAL

162.6125 - TASRAIL-MTARTHUR

163.025  - LCC MT ARTHUR(D)

163.075  -  LCC FREELANDS(D)

163.575  -  LCC MT ARTHUR(D)

413.1 - LTON COLLEGE(D)

413.35 - LGH SECURITY(D)

438.05  -  VK7RBL-BENLOMOND

438.55 - VK7RJG-MTARTHUR

462.075  -  TASPORTS

463.4  -  TARGET LTON

464.275 - METRO ABLES

464.375 - METRO FREELANDS

473.4  -  TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.125 - WARREN J SPEERS

474.775  -  UNI SECURITY (DMR)

474.925  -  PFEIFFER CRANES

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.5  -  UHF CB CH 4

476.55  -  UHF CB CH 6

476.625  -  UHF CB CH 9

476.65 - UHF CB CH 10

476.675  -  UHF CB CH 11

476.7  -  UHF CB CH 12

476.75  -  UHF CB CH 14

476.8  -  UHF CB CH 16

476.825  -  UHF CB CH 17

476.85 -  UHF CB 18

476.975  -  UHF CB CH 23

477.025  -  UHF CB CH 25

477.125  -  UHF CB CH 29

477.15  -  UHF CB CH 30

477.2  -  UHF CB CH 32

477.25  -  UHF CB CH 34

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.4 - UHF CB CH 40

485.25 - CSE CROSS COM

488.55 - CSE CROSS COM

494.925 - LCC SWIMMING

Exploring the Airwaves: My 2025 Radio Band Monitoring Goals

 

As 2025 approaches, it’s the perfect time to reflect on the ever-evolving world of radio monitoring and set some ambitious goals for the coming year. With my lifelong passion for radio and recent focus on VHF/UHF band monitoring, I’ve decided to push my boundaries and dive deeper into this fascinating hobby. Here's a roadmap of what I hope to achieve in 2025.

1. Building a Comprehensive Band Monitoring Toolkit

One of my primary goals is to refine my radio monitoring setup. While I’ve had success with tools like "Toiletry Bag Radio Scanner Case with Hard Case" for organizing equipment, I aim to upgrade my gear to include:

- A wider range of antennas: I'll experiment with compact directional antennas and advanced random wire designs for VHF and UHF to enhance reception.

- Improved logging systems: SAPJRadioScanningDB has been invaluable, but I plan to enhance its functionality with more options and add some "smarts" to it.

2. Expanding Frequency Horizons

While the UHF band monitoring has been my recent focus, 2025 will be the year to:

- Dive deeper into the VHF and microwave bands, particularly for niche communications.

- Explore digital modes: Decoding DMR, P25, and other digital protocols will open up new possibilities for monitoring local business users and public utilities.

- Revisit HF DXing: I want to optimize my random wire aerials for improved reception. I also want to devote some time to shortwave listening again.

3. Community Engagement and Collaboration

Radio monitoring doesn’t have to be a solitary pursuit. In 2025, I plan to:

- Expand my blog, to document my discoveries, experiments, and insights, sharing my passion with fellow enthusiasts.

- Join in more in various online forums and groups, to exchange tips, collaborate on projects, and participate exchanging information.

- Host some online workshops on building DIY antennas and using open-source tools like SAPJRadioScanningDB to engage newcomers in the hobby.

4. Integrating AI and Automation

As a radio monitoring nut and with a deep personal and professional interest in all things technology related, I’m intrigued by the potential of AI in radio monitoring. Some ideas include:

- Automating signal classification: Using machine learning to identify and categorize signals based on frequency, modulation, and content.

- Predictive User conditions: Developing a tool to forecast optimal listening windows based on previous logged details.

- Automated logging: Building a system that seamlessly logs frequencies, timestamps, and signal quality, plus content without constant manual input.

5. Encouraging Low-Cost and Low-Footprint Practices

Keeping radio monitoring accessible is important to me. In 2025, I’ll continue to focus on budget-friendly setups, such as:

- Promoting low cost radios and DIY antennas for newcomers.

- Sharing detailed guides for setting up compact home stations in small spaces.

- Experimenting with eco-friendly power sources like solar panels for portable monitoring kits.

The Big Picture

Ultimately, my 2025 goals are about pushing the limits of what’s possible in radio band monitoring while keeping the hobby fun, accessible, and innovative. From new gear to fresh approaches, this year is all about exploration and growth. Stay tuned for updates on these projects—I can’t wait to share what I discover with you all. Here’s to another exciting year on the airwaves!

What are your radio goals for 2025? Let’s exchange ideas and inspire each other to reach new heights in this amazing hobby!

Loggings - 23/11/2023

118.7 - TOWER-LTON

123.8 - ATC-LTON APPROACH 

126.5 - ATC-NORTH 

126.7 - CTAF - (23/11/2224 - Helicopter has spotted a drone in the air near Bridport beach. Warning other aircraft to be careful.) 

129.5 -  QANTAS 

130.125  -  JETSTAR-HOBART 

130.35  -  VELOCITY 

146.5 - 2M HAM SIMP - (23/11/2024 - VK7DW calling CQ for VHF / UHF Field Day.) 

147.000 - VK7RAA-MTARTHUR 

162.6125 - TASRAIL-MTARTHUR 

163.075  -  LCC FREELANDS(D) 

414.26875 - METRO UHF LINK - (23/11/2024 - Found via band search.)

438.05  -  VK7RBL-BENLOMOND 

438.55 - VK7RJG-MTARTHUR 

464.275 - METRO ABLES 

464.375 - METRO FREELANDS 

474.125 - WARREN J SPEERS - (23/11/2024 - Found a phone at public toilet, suspect stolen.) 

476.475  -  UHF CB CH 3 

476.725  -  UHF CB CH 13 

476.75  -  UHF CB CH 14 

476.8  -  UHF CB CH 16 - (23/11/2024 - Thrope Transport? "Tell customer to open back gate and keep an eye out for a Thrope Transport truck.)

476.85 -  UHF CB 18 - (23/11/2024 - Ute has a load of off meat, directed to bin 3 and will then take direct to tip face to be covered.)

477  -  UHF CB CH 24 

494.925 - LCC SWIMMING - (23/11/2024 - Change room door stuck again, looks like somebody has tried to force it open. Teenagers seen near it.)

Uniden BC95XLT "Frequency Counter Mode"

Pressing [HOLD]+[0]+[3]+[Power] together while powered on, will enter frequency counter mode, which displays Uniden Close Call's signal detection with no audio. The Up [2] and Down [8] keys will switch between bands while in this mode. The same keypress code applies to the other Uniden models in this range.

Loggings - 21/11/2024

 118.7 - TOWER-LTON

123.8 - ATC-LTON APPROACH

125.55 - ATC HOBART

126.5 - ATC-NORTH

129.5 -  QANTAS

130.35  -  VELOCITY

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

146.5 - 2M HAM SIMP

147.000 - VK7RAA-MTARTHUR

156.375  -  MARINE VHF 67

156.425  -  MARINE WEATHER

156.6  -  MARINE VHF 12

156.7 - MARINE VHF 14

161.075  -  ARTEC

162.375  -  TASRAIL-MILLERS

162.5 - BORAL

162.6125 - TASRAIL-MTARTHUR

163.075  -  LCC FREELANDS(D)

163.475  -  LCC FREELANDS(D)

163.575  -  LCC MT ARTHUR(D)

413.1 - LTON COLLEGE(D)

413.35 - LGH SECURITY(D)

438.05  -  VK7RBL-BENLOMOND

454.175  -  METRO (TX)

454.275  -  METRO (TX)

462.05  -  BUNNINGS

464.275 - METRO ABLES

464.375 - METRO FREELANDS

473.4  -  TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.775  -  UNI SECURITY (DMR)

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.475  -  UHF CB CH 3

476.5  -  UHF CB CH 4

476.575  -  UHF CB CH 7

476.625  -  UHF CB CH 9

476.65 - UHF CB CH 10

476.75  -  UHF CB CH 14

476.775  -  UHF CB CH 15

476.825  -  UHF CB CH 17

476.85 -  UHF CB 18

476.975  -  UHF CB CH 23

477  -  UHF CB CH 24

477.125  -  UHF CB CH 29

477.15  -  UHF CB CH 30

477.175  -  UHF CB CH 31

477.2  -  UHF CB CH 32

477.25  -  UHF CB CH 34

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.4 - UHF CB CH 40

485.25 - MARCOM WATSON

488.55 - MARCOM WATSON

494.925 - LCC SWIMMING

Why Are Some Radio Enthusiasts More Interested in the Technology Than the Content?

Radio scanning is a fascinating hobby, one that bridges the gap between exploration and technical tinkering. Yet, if you spend enough time in the community, you’ll notice a distinct divide: some enthusiasts are captivated by what they hear on the airwaves, while others are drawn to the intricacies of the technology itself. Why does this difference exist? Let’s explore.

---

The Thrill of the Chase vs. the Joy of Understanding

For many, the appeal of radio scanning lies in the “thrill of the chase.” They tune in to catch rare transmissions, uncover unique frequencies, or immerse themselves in the ebb and flow of human activity carried across the airwaves. These are the hobbyists who value the content—be it conversations, weather updates, emergency broadcasts, or even mysterious unidentified signals.

On the other hand, there’s the technophile contingent. For these enthusiasts, the allure isn’t as much about what they hear but how they hear it. They marvel at the interplay of circuits, antennas, and algorithms that make scanning possible. For them, every new SDR (software-defined radio) dongle, antenna configuration, or frequency band is an opportunity to learn, experiment, and innovate.

---

Radio as a Technical Playground

Radio scanning offers a perfect blend of hands-on and theoretical challenges, making it an irresistible playground for technology-minded individuals. Here's why:

1. Customizability: The ability to build or modify antennas, experiment with filters, and tweak software settings scratches the itch for creative problem-solving.
2. Signal Mastery: Concepts like propagation, modulation, and demodulation provide endless opportunities for learning and application.
3. The “How” Is Always Evolving: With digital signals and SDR taking over, radio technology isn’t static—it evolves rapidly, keeping the technophile perpetually intrigued.

---

The Content Isn’t Always Thrilling

Let’s face it: not all radio content is captivating. Public safety communications, aviation chatter, or ham radio QSOs can be fascinating to some but mundane to others. For technology enthusiasts, the value lies in the process, not the product. Successfully decoding an obscure digital signal, for example, might be more satisfying than the actual message.

---

A Spectrum of Interests

It’s worth noting that these motivations often overlap. A technophile might delve deep into signal decoding only to stumble upon an exciting transmission that sparks a new appreciation for the content. Similarly, a content-focused listener might develop a curiosity about how their equipment works, leading them to explore the technical side.

---

Why It’s All Part of the Fun

The diversity within the radio scanning community is what makes it so vibrant. Some chase elusive transmissions; others chase the cutting edge of technology. Both approaches contribute to the hobby’s evolution—content seekers keep the community grounded in the human experience of radio, while technophiles push its boundaries through innovation.

So, whether you’re glued to your scanner listening for rare DX signals or buried in a soldering project building a better antenna, there’s room for everyone. The real joy of radio scanning is that it’s as much about personal discovery as it is about the airwaves themselves.

What motivates you in radio scanning—are you a content chaser or a tech tinkerer? Or perhaps a little of both? Share your thoughts in the comments!

Free Radio Scanner Configuration Support

Are you new to radio scanning or having trouble configuring your scanner? Maybe you’ve had one for years but need help setting up a custom configuration. Whatever your situation, I’m here to help—for free.

As a lifelong enthusiast of radio and electronics, I’ve spent countless hours working with scanners, antennas, and various configurations. From beginner setups to advanced custom configurations, I understand the ins and outs of radio scanning and want to share my knowledge with the community.

What I Offer:

1. General Radio Scanner Support
   If you're struggling to understand how to program your radio scanner, troubleshoot issues, or optimize its performance, I can provide clear, step-by-step assistance.

2. Custom Configurations
   Whether you’re monitoring UHF, VHF, or specific local frequencies, I can help you set up a tailored configuration to suit your needs. If you have unique requirements, like integrating your scanner into a broader radio monitoring setup, let me know!

3. Resource Sharing
   I can also guide you to helpful resources, software, or tools that will enhance your scanning experience.

How to Reach Me

This service is entirely free—no strings attached. Simply use the contact form on my blog to reach out. In your message, please include:

• The make and model of your radio scanner.
• A brief description of the issue or your desired setup.
• Any specific frequencies, bands, or areas you want to focus on.

I’ll do my best to respond within 24 hours of receiving your message.

Why I’m Doing This

Radio scanning has brought me so much joy and curiosity over the years. It’s a fascinating hobby that bridges technology and exploration. By offering free support, I hope to make the world of scanning more accessible to anyone interested.

Whether you're just getting started or looking to take your setup to the next level, I’m here to help. Let's keep the airwaves alive!

Loggings - 18/11/2024

Yesterday I spent some time in the Launceston CBD, scanning the bands. I logged a number of signals, including some UHF headsets.

118.7 - TOWER-LTON

123.8 - ATC-LTON APPROACH

126.4 – HELI RESOU

126.5 - ATC-NORTH

129.5 -  QANTAS

130.35  -  VELOCITY

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

146.45 - 2H HAM SIMP

146.5 - 2M HAM SIMP

147.000 - VK7RAA-MTARTHUR

156.7 - MARINE VHF 14

156.8  -  MARINE VHF 16

162.5 - BORAL

162.6125 -TASRAIL-MTARTHUR

163.025 - LCC MT ARTHUR(D)

163.075 - LCC FREELANDS(D)

438.05  -  VK7RBL-BENLOMOND

438.55 - VK7RJG-MTARTHUR

454.275  -  METRO (TX)

462.075 - TASPORTS

462.225  -  ANACONDA

462.25 - KMART LTON

462.275 - SUPERCHEAP LTON

462.325 - SPOTLIGHT

463.5375  - ST LUKES HEALTH

464.275 - METRO ABLES

464.375 - METRO FREELANDS

467.475  -  CASINO SECURITY(D)

471.7 - PFEIFFER CRANES

473.4 - TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.375 - LCC PARKING(D)

474.775 - UNI SECURITY (DMR)

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.475  -  UHF CB CH 3

476.525  -  UHF CB CH 5

476.575  -  UHF CB CH 7

476.625  -  UHF CB CH 9

476.65 - UHF CB CH 10

476.675  -  UHF CB CH 11

476.725  -  UHF CB CH 13

476.775  -  UHF CB CH 15

476.825  -  UHF CB CH 17

476.85 -  UHF CB CH 18 (Launceston Tip)

477.025  -  UHF CB CH 25

477.05  -  UHF CB CH 26

477.1  -  UHF CB CH 28

477.15  -  UHF CB CH 30

477.175  -  UHF CB CH 31

477.2  -  UHF CB CH 32

477.3  -  UHF CB CH 36

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.3875  -  UHF CB CH 79

477.4  -  UHF CB CH 40

477.4125  -  UHF CB CH 80

485.25 - MARCOM WATSON

488.55 - MARCOM WATSON

494.925 - LCC SWIMMING

495.0125 - UHF SIMPLEX (BridgePro)

Toiletry Bag Radio Scanner Case with Hard Case: My Goldilocks Moment

I didn’t need another radio case. My collection of cases, bags, and boxes for storing radio equipment could rival the stock of a small travel shop. Yet, while browsing at my local SuperCheap Auto, I stumbled across a small, sturdy hard case priced at just $10. It was one of those deals you can’t leave behind—practical, versatile, and shockingly affordable. So, naturally, I grabbed it.

When I got home, I had no immediate plans for the case. It was more of a “this will come in handy someday” purchase. However, as I mulled over its potential, I remembered an unused plain black toiletry bag in my stash of supplies. Initially, it was just a passing thought, but curiosity got the better of me.

To my surprise, the toiletry bag turned out to be the perfect size. It neatly housed my custom UHF loop aerial, a small UHF CB radio, and various other bits and pieces I frequently use. The combination of the toiletry bag’s flexible storage and the hard case’s solid protection was unexpectedly ideal.

Much like the tale of the three bears, I’d spent a long time cycling through cases that were either too big, too small, or too impractical. But this setup? It feels just right.

The plain black design of the toiletry bag is another bonus—it keeps everything low-profile. To the casual observer, it’s just another nondescript bag. Inside, though, it’s a carefully organized kit tailored to my needs.
In the hard case: Uniden BC95XLT, Aerial, AA Battery Charger, USB Cable, Spare Batteries and Ear phones.
In the Toiletry Bag: I have my custom designed UHF Horizontal Wire Loop Aerial (UHFHWLA), 0.5W UHF CB, some spares AA batteries and room for a small note pad and pen.

Could this finally be the perfect radio scanner setup I’ve been chasing for years? Time will tell, but for now, I’m thrilled with this simple yet effective solution. Sometimes, the perfect setup doesn’t come from flashy or purpose-built gear but from a bit of creativity and a lucky find.

If you’re looking to improve your own radio gear storage, maybe it’s worth thinking outside the box—or bag, as it were. Who knows what treasures you’ll discover in the aisles of your local store?

Loggings - 17/11/2024

118.1  -  TOWER-HOBART

118.7 - TOWER-LTON

123.45  -  AIR SIMP

123.8 - ATC-LTON APPROACH

126.5 - ATC-NORTH

126.7 - CTAF

127.3  -  CTAF-GT

129.5 -  QANTAS

130.125  -  JETSTAR-HOBART

130.225  -  JETSTAR-LTON

130.35  -  VELOCITY

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

146.5 - 2M HAM SIMP

147.000 - VK7RAA-MTARTHUR

156.375  -  MARINE VHF 67

156.4 - MARINE VHF 8

156.425  -  MARINE WEATHER

156.6  -  MARINE VHF 12

156.7 - MARINE VHF 14

162.5 - BORAL

162.6125 - TASRAIL-MTARTHUR

163.075  -  LCC FREELANDS(D)

163.475  -  LCC FREELANDS(D)

163.575  -  LCC MT ARTHUR(D)

413.35 - LGH SECURITY(D)

438.05  -  VK7RBL-BENLOMOND

438.55 - VK7RJG-MTARTHUR

454.275  -  METRO (TX)

462.075  -  TASPORTS

462.375  -  TASPORTS

463.025 - LCC QVMAG(D)

464.275 - METRO ABLES

464.375 - METRO FREELANDS

473.4  -  TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.125 - WARREN J SPEERS

474.775  -  UNI SECURITY (DMR)

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.5  -  UHF CB CH 4

476.5375  -  UHF CB CH 45

476.55  -  UHF CB CH 6

476.5625  -  UHF CB CH 46

476.5875  -  UHF CB CH 47

476.6  -  UHF CB CH 8

476.625  -  UHF CB CH 9

476.675  -  UHF CB CH 11

476.75  -  UHF CB CH 14

476.8  -  UHF CB CH 16

476.825  -  UHF CB CH 17

476.85 -  UHF CB 18

476.975  -  UHF CB CH 23

477.0125  -  UHF CB CH 64

477.025  -  UHF CB CH 25

477.0625  -  UHF CB CH 66

477.1  -  UHF CB CH 28

477.125  -  UHF CB CH 29

477.175  -  UHF CB CH 31

477.2  -  UHF CB CH 32

477.3  -  UHF CB CH 36

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.4  -  UHF CB CH 40

477.4125  -  UHF CB CH 80

485.25 - MARCOM WATSON

488.55 - MARCOM WATSON

494.925 - LCC SWIMMING

495.0125 - UHF SIMPLEX

Project - Researching, Designing and Building a UHF Horizontal Wire Loop Aerial (UHFHWLA)

Designed, researched, built and tested by Paul

The UHF Horizontal Wire Loop Aerial (UHFHWLA) is a simple yet effective DIY antenna project designed for UHF frequencies, particularly for monitoring UHF CB and other active users in the band. This aerial builds on principles learned from ultralight DXing tools like Ferrite Sleeve Loop (FSL) antennas. While FSLs excel in MW and LW bands, this UHF counterpart harnesses the benefits of compact design, easy tuning, and strong performance at higher frequencies.

This post covers the design, testing, construction, and results of the Mark 1 UHFHWLA, focusing on its performance with UHF TASGRN control channels.

---

Background and Motivation

As an avid DXer, I’ve worked extensively with Ferrite Sleeve Loop (FSL) antennas for ultralight radio DXing. These antennas have shown me how small, efficient designs can transform reception capabilities. Moving into VHF and UHF frequencies, the principles of compact loops scale beautifully. Since higher frequencies have shorter wavelengths, this project became an accessible experiment with a practical application: improving UHF CB and 420MHz trunked system reception.

The target: UHF TASGRN control channels (420MHz) and general UHF CB monitoring.

---

Design Concept

The UHFHWLA employs a simple horizontal loop design, making it:

• Easier to construct than vertical dipoles or Yagis.
• Compact and lightweight, leveraging UHF's short wavelength.
• Capable of providing some directionality for signal identification.

To evaluate performance, I decided to test two configurations:

1. One wavelength loop (e.g., 70cm length for 440MHz 70CM amateur radio band).
2. Two-wavelength loop, double length (140cm), for potential gain improvements. This longer length should also improve VHF signal reception.

---

Materials and Construction

Materials

• Two empty paper rolls (lightweight yet sturdy forms for the loop ends).
• Wire (cut to precise lengths for resonance at UHF frequencies).
• Adhesive tape (to secure the wire and maintain shape).
• Cable ties (planned for Mark 2 for better structural integrity).
• BNC Connector.

Construction Process

1. Measure the wire:

   • For one wavelength: Calculate using the formula
     $\text{Length (m)} = \frac{\text{300}}{\text{Frequency (MHz)}}$.
     Example: For 440 MHz, the wavelength is approximately 70cm.
   • Double the length for the two-wavelength loop. 140cm, this also provides some level of gain.

2. Prepare the forms:

   • Tape the wire around inner paper roll, to maintain a consistent circular shape.

3. Join the wire ends:

   • Secure the loop with adhesive tape to ensure a stable connection. Cut the other paper roll length ways and place this over the inner roll.

4. Attach to the BNC connector:

   • Attached this via wire, for a reliable test. MK2 will see this replaced with cables ties.

---

Testing and Results

Testing Parameters

• Frequency focus: UHF TASGRN control channels (420–430MHz range).
• Equipment: Uniden BC95XLT scanner and log sheet.
• Comparison: Benchmarked against the standard whip and a single wave length aerial.

Findings

1. Performance improvement:

   • Logged 30% more TASGRN control channels compared to the whip.
   • Stronger signal reception across multiple sites.

2. Directionality:

   • The loop exhibited a subtle ability to null out off-axis signals, aiding in signal identification and reducing interference.

3. Configuration comparison:

   • The two-wavelength loop showed better gain, especially for distant signals.
   • However, it was less practical for portable use.

---

Room for Improvement: Mark 2 Plans

The UHFHWLA Mark 1 demonstrated promise, but there’s room to refine its design for durability and ease of use:

• Structural improvements:

  • Add cable ties for a stronger loop form.
  • Wrap the assembly with protective tape to guard against wear.

• Labelling:
  

  • Mark the loop with its frequency range for easier field identification.

• Connection enhancements:

  • Explore better connectors for cleaner signal transfer.

---

Conclusion

The UHF Horizontal Wire Loop Aerial is an excellent starting point for DIY antenna enthusiasts focused on UHF monitoring. Its simple design and measurable performance gains make it a valuable addition to any radio monitors toolkit. Testing with TASGRN control channels proved its utility, logging more signals with stronger reception and some directionality.

Mark 2 improvements are already in the works, aiming to make this aerial even more robust and user-friendly for extended field use. This project highlights how accessible and rewarding antenna experimentation can be, especially at higher frequencies like UHF.

Loggings - 15/11/2024

118.7 - TOWER-LTON

123.45  -  AIR SIMP

123.8 - ATC-LTON APPROACH

126.5 - ATC-NORTH

126.7 - CTAF

127.3  -  CTAF-GT

129.5 -  QANTAS

130.125  -  JETSTAR-HOBART

130.225  -  JETSTAR-LTON

145.025 - 2M HAM SIMP

146.4  -  VK7RAA INPUT

146.5 - 2M HAM SIMP

147.000 - VK7RAA-MTARTHUR

156.4 - MARINE VHF 8

156.6  -  MARINE VHF 12

156.7 - MARINE VHF 14

158  -  TASRAIL SIMP VHF

162.3875 - TAS GAS PIPELINE

162.5 - BORAL

162.6125 - TASRAIL-MTARTHUR

163.075  -  LCC FREELANDS(D)

163.475  -  LCC FREELANDS(D)

163.575  -  LCC MT ARTHUR(D)

413.1 - LTON COLLEGE(D)

413.35 - LGH SECURITY(D)

414.025  -  TASRAIL UHF LINK

414.425  -  TASRAIL UHF LINK

438.55 - VK7RJG-MTARTHUR

439.775  -  VK7RDR-DAZZLER

454.275  -  METRO (TX)

462.05  -  HARRIS SCARFE

462.075  -  TASPORTS

462.375  -  TASPORTS

463.025 - LCC QVMAG(D)

464.275 - METRO ABLES

464.375 - METRO FREELANDS

473.4  -  TASRAIL SIMP UHF

473.5 - TASRAIL SIMP UHF

474.775  -  UNI SECURITY (DMR)

474.925  -  PFEIFFER CRANES

476.425  -  UHF CB CH 1

476.45  -  UHF CB CH 2

476.475  -  UHF CB CH 3

476.5  -  UHF CB CH 4

476.55  -  UHF CB CH 6

476.575  -  UHF CB CH 7

476.6  -  UHF CB CH 8

476.65  -  UHF CB CH 10

476.675  -  UHF CB CH 11

476.75  -  UHF CB CH 14

476.8  -  UHF CB CH 16

476.825  -  UHF CB CH 17

476.85 -  UHF CB 18

477  -  UHF CB CH 24

477.025  -  UHF CB CH 25

477.075  -  UHF CB CH 27

477.1  -  UHF CB CH 28

477.125  -  UHF CB CH 29

477.15  -  UHF CB CH 30

477.175  -  UHF CB CH 31

477.2  -  UHF CB CH 32

477.3  -  UHF CB CH 36

477.35  -  UHF CB CH 38

477.375  -  UHF CB CH 39

477.4  -  UHF CB CH 40

485.25 - MARCOM WATSON

488.55 - MARCOM WATSON

494.925 - LCC SWIMMING

495.0125 - UHF SIMPLEX

 

Why Hobbies Matter: A Look at the Benefits of Radio Monitoring

In our busy lives, finding a hobby that balances relaxation with personal fulfillment can be transformative. A good hobby not only provides joy but also shapes our day in subtle yet meaningful ways. For me, radio monitoring has emerged as a perfect pursuit, offering a set of unique benefits. This low-cost, low-footprint activity aligns well with the demands of my life, providing mental stimulation without the hassles or high expenses often associated with other hobbies.

1. Low Cost and Accessibility
Many hobbies require significant upfront investments—whether it's equipment, membership fees, or materials that can quickly add up. Radio monitoring, on the other hand, has a modest entry cost, less than $100 can get you started. A simple setup, such as a basic receiver, is often all that’s required to begin exploring. This affordability makes it accessible to nearly anyone interested in tuning in to the world around them.

2. Flexible Time Commitment
One of the best aspects of radio monitoring is that it can fit neatly into any schedule. Whether you have an hour or just a few spare minutes, radio monitoring is there when you need it. You can easily switch it on when the moment allows, unlike hobbies that may require extensive setup, travel, or coordination. For those with busy, unpredictable schedules, radio monitoring offers a perfect escape—one that doesn’t demand too much but is always there when you need it.

3. Stay-at-Home Enjoyment
For many, the best hobbies are those that keep them comfortably at home. Radio monitoring lets me stay engaged without leaving the house, which is especially beneficial if you have a role as a carer, a work-from-home setup, or other home obligations. There’s no need to venture out to enjoy this pastime, making it ideal for anyone who wants to remain close to their responsibilities while still enjoying the relaxation that comes from a hobby.

4. Minimal Space, Noise, and Mess
Some hobbies can take up a significant amount of space or create noise, mess, and clutter. Radio monitoring has none of these downsides. The equipment is generally compact, making it easy to store, and requires no major room renovations or designated spaces. Unlike a craft or woodworking hobby, there’s no cleanup or mess to contend with afterward, and the radio’s volume can be adjusted to keep things quiet, allowing you to enjoy it without disturbing others.

5. Independence from Others
While social hobbies are great for many, the beauty of radio monitoring lies in its solitary nature. This hobby does not require other people, giving you total control over the experience. You’re free to explore frequencies, log findings, and pursue your interests without relying on anyone else’s schedule or input. It’s a satisfying, personal adventure with no need for group arrangements or coordination.

6. Mental Engagement and Learning
Radio monitoring is more than just listening; it’s an exercise in focus and curiosity. Each scan of the bands is a unique experience, where you can uncover local broadcasts, distant signals, and unexpected transmissions. For those interested in radio, electronics, or simply exploring the unseen, radio monitoring offers endless mental stimulation. It encourages learning about frequencies, atmospheric conditions, and even how radio works, which can deepen your understanding of technology and expand your skills.

Conclusion
In a world where time and space are often at a premium, finding a hobby that aligns with your needs can be challenging. Radio monitoring checks every box: it’s affordable, flexible, quiet, and requires only as much time as you can spare. For anyone looking for a personal hobby that provides mental enrichment without cluttering their lives, radio monitoring is a worthwhile pursuit. It has become more than just a pastime—it’s a rewarding part of my day, no matter how busy life gets.

Software - SAPJRadioScanningDB

 

SAPJRadioScanningDB: A Custom Python Database for Radio Scanning Enthusiasts.
Current Version = 1.9

Install / Setup:
1. Download SAPJRadioScanningDB from here
2. Unzip to C:\SAPJRadioScanningDB
3. Open this folder and run "SAPJRadioScanningDB_V1.9.exe"
The full path is: "C:\SAPJRadioScanningDB\SAPJRadioScanningDB_V1.9.exe"
4. Enter the username as "user" and password as "user"
5. A demo record has been added, please use this as a guide of the correct way to enter loggings and data.

What is SAPJRadioScanningDB?

As a long-time radio scanning enthusiast, I’ve always looked for efficient ways to log the frequencies, channels, and key information I encounter during my monitoring sessions. Many existing solutions are great, but none quite met the specific needs I have as someone passionate about logging, sorting, and categorizing my findings effectively. This is what led me to develop SAPJRadioScanningDB, a Python-based database system designed specifically for logging radio scanning-related data.

SAPJRadioScanningDB is a specialized, Python-based tool created to simplify the process of logging frequencies, capturing details about channels, and organizing relevant data points. It’s a database designed from the ground up with the goal of helping radio scanning enthusiasts like me track, update, and reference the information they uncover. Rather than relying on generalized software, I wanted a system that would meet the nuances of radio logging in a low-cost, flexible way.

Key Features of SAPJRadioScanningDB

1. Efficient Frequency Logging: This tool was designed for streamlined frequency logging. SAPJRadioScanningDB allows me to add and sort frequency data, note down related signal strengths, locations, and other information I find useful during my scanning. It has a couple of shortcuts, which aid in data entry.
   Middle Mouse Click = Open Edit Menu
   Right Mouse Click = Set logged date to today. This has been added as it saves a lot of time when updating the last logged date.

2. Customizable Entries: The flexibility of Python allows me to easily customize the fields and entries I want to track. Whether it’s band, frequency type, or even timestamped notes about specific broadcasts, I can add these fields as needed.

3. Sorting and Searching: One of the biggest advantages of a database like SAPJRadioScanningDB is the ability to search and sort information quickly. By applying filters, I can retrieve specific bands, channels, or frequencies, which makes revisiting past findings easier and more efficient.

4. Minimalist and Lightweight: In keeping with my interest in low-cost, low-footprint hobbies, SAPJRadioScanningDB is lightweight and doesn’t require heavy software to operate. It can be run on most systems without needing much in the way of resources, which is ideal for a clutter-free setup.

5. Built for Personal Use: Unlike some larger commercial databases, SAPJRadioScanningDB is designed for the individual user. This means I’ve avoided unnecessary complexity and focused on what’s most useful for logging and retrieving my personal scanning data.

Why Python?

Python was an obvious choice because it’s a highly versatile and accessible programming language with great support for data manipulation and storage libraries. It lets me easily build in functionality like exporting data, creating custom logging formats, and even generating reports if needed. Python also provides great flexibility for potential updates, meaning I can enhance SAPJRadioScanningDB with new features as my needs evolve.

In Summary, if you’re a radio scanning enthusiast looking for a customizable logging solution, SAPJRadioScanningDB could be the perfect addition to your toolkit. Designed specifically for those who love to keep track of radio discoveries, this Python-based system has made my logging process more organized and enjoyable.