Products - SARCNET

School Amateur Radio Club Network
School Amateur Radio Club Network
School Amateur Radio Club Network
School Amateur Radio Club Network
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School Amateur Radio Clubs have inspired a number of very interesting radio and electronics projects. We are developing more all the time. Some of our most popular projects have now been turned into products for sale in the hope they will encourage more youngsters into STEM through the development of School Amateur Radio Clubs. Of course we will always continue to offer free project information, software and support where we can. We have secured our website and we use the secure PayPal server. We aim to provide high quality hardware and software. Each of our products is fully checked and tested before shipment.
Product List
STEM Kit #1- Electronics Prototyping (10PCS)
STEM KIT #1 - Electronics PrototypingSTEM KIT #1 - Electronics PrototypingSTEM KIT #1 - Electronics Prototyping
With this electronics prototyping kit you can learn about electric voltage and current, electronic components, circuits, component symbols, resistor color codes, schematic diagrams and build the first five (5) different educational circuits in our STEM workshop notes or use the included Printed Circuit Board (PCB) and this free STEM Electronics Kit Construction Booklet to make our Hypnotic Owl model (requires a soldering iron, adult supervision and tools). There is also a free STEM Electronics Prototyping slide-show for a teacher or instructor to use, introducing each component, showing step-by-step instructions and an animation illustrating how it works. Included in the kit are the printed instructions, all the transistors, resistors, capacitors, LEDs, wire links, PCB, prototyping board and a switched battery-holder for two AA batteries (not included).

Due to the cost of postage we only ship a minimum quantity of ten (10) kits. So you can have all your friends over for a home workshop night, or take them to school for the whole class to try!

Each shipment contains ten (10), individually packaged, electronic prototyping kits, plus one (1) free set of spare electronic components including the PCB (less prototyping board and battery pack). Purchase through the secure PayPal server Buy Now button below. Price includes postage. Ships anywhere in AUSTRALIA for AU$110.00. Ships anywhere in THE WORLD for AU$130.00.

STEM Kit #1 - Electronics Prototyping (10PCS) IN STOCK

STEM Kit #2 - PTH Soldering Practice Kit

This STEM kit will help you learn to solder electronic components to Plated Through Hole (PTH) Printed Circuit Boards (PCB). The kit comes with a 4cm x 6cm practice PCB, with 280 pads aligned in a grid, as well as 60 1/4W carbon resistors and 600mm of lead-free solder. The task is to solder 56 resistors in 4 even columns across the PCB. Note: The resistor leads should be insered into columns A&E, F&G, K&O, P&T. The first resistor is already soldered for you as an example. Make sure to follow all the safety instructions in our PTH Soldering Workshop Notes. Please contact us for price (RRP. AU$10) and availability of our PTH Soldering Practics kits.
STEM Kit #3 - SMT Soldering Practice Kit

This STEM kit will help you learn to solder Surface Mount Technology components to Printed Circuit Boards (PCB). The kit comes with a 4cm x 6cm practice PCB, with pads for a selection of different sized SMT components including:
    • 20 - 0805 resistors;
    • 20 - 0806 resistors;
    • 9 - 1206 resistors;
    • 5 - 1206  diodes;
    • 1 - SOP16 IC;
    • 6 - SOT-23 transistors; and
    • 1 SSOP28 IC
The kit includes 600mm of lead-free solder and a toothpick to help you align the small components to the pads. The task is to solder all the SMT components to the PCB. Make sure to follow all the safety instructions in our SMT Soldering Workshop Notes. Please contact us for price (RRP. AU$10) and availability of our SMT Soldering Practice kits.
STEM Kit #4 - PTH LED Christmas Tree Kit

For the more advanced constructor, and great as a project over the Christmas break, you can tackle this Mini Christmas Tree LED project. Powered by 3 AA cells, or from the USB port of your laptop, this multi-coloured display looks really fantastic on the mantle-piece at Christmas. Download the instructions here. Please contact us for price (RRP. AU$15) and availability of our PTH LED Christmas Tree Kit.
STEM Kit #5 - SMT Electronic Dice Kit

This kit is an electronics touch dice. It works off a 9 volt battery. By just touching the two contacts on the front of the PCB with your finger, it sets the 7 LEDs in motion. They eventually slow down and stop flashing to reveal a random number from 1 to 6, displayed in the same pattern as used on a real dice. You can use this circuit with your favourite game of chance. See a clear overlay diagram here. Please contact us for price (RRP. AU$15) and availability of our SMT Electronic Dice Kit.
STEM Kit #6 - Arduino Microcontroller Kit

Our Arduino microcontroller kits are perfect for anyone starting their own Arduino projects. Simply plug it in to a laptop and start coding. They include the following pre-assembled parts:
    • Arduino Pro-Micro 5V/16MHz Controller on pre-soldered SIP Header Pins
    • Pre-Programmed C++ Traffic Light Demo
    • 400-Point Solderless Breadboard
    • Pre-Installed Busbar Power and Ground Links
    • Micro USB Cable
    • 3x5V Compound LEDs: Red Yellow and Green
To use this kit to learn about microcontrollers and coding: Download the Arduino IDE from; connect to your Laptop or PC using the USB Cable; write your own or download code from the Internet; click to verify and upload your code to the Arduino. Now your programs will automatically run at power up.

For more information and code examples please download our Object-Oriented Programming booklet. Download our oop.ino and TrafficLight demo sketch. For the more advanced programmer please download our Arduino for Amateur Radio Presentation. Please contact us for price (RRP. AU$25) and availability of our Arduino Microcontroller Kit.
STEM Kit #7 - USB Soldering Station Kit

This is a complete soldering station for anyone wanting to learn Plated Through Hole (PTH) and Surface Mount Technology (SMT) soldering. It is safe to use provided you follow the simple directions. Eye protection, heat-resistant gloves and 100% adult supervision is required for absolute beginners. We use it to teach soldering to students as young as 5 years old. After one session they are proficient in the basics. They simply love building their own electronic circuits. It is perfect for building all our kits, of course, and better than larger and more expensive sets for most SMT work. It even runs off USB backup batteries for portable operation. The kit includes:
    • USB Powered Soldering Iron with Stand
      • Powered from any USB Charger or PC (Not included)
      • Safe Low Voltage and Low Power (5V/8W)
      • Heats up in 20 seconds with Power Indicator
      • Micro-tip perfect for PTH & SMT Components
      • Touch on Switch with Automatic Off function
    • Carbon Fibre Tweezers
      • Precision Point, Heat Resistant, Insulated, Anti-static
    • Soldering Iron Tip Cleaner (Brass) and Stand
    • Precision Side Cutters for Electronic Components
    • Lead Free Solder
    • Soldering Mat (A4)
Please contact us for price (RRP. AU$40) and availability of our USB Soldering Station Kit.

LCD Soldering Iron

This professional temperature-controlled soldering iron is perfect for more advanced projects requiring precise temperature control and additional power. It is suitable for both Plated Through Hole (PTH) and Surface Mount Technology (SMT) soldering. It has an LCD display showing the temperature setting and + (UP) and – (DOWN) temperature control buttons convieniently located on the handle. The temperature range is 180°C - 480°C with a fast heat up time from a powerful 80W ceramic heating element. It uses standard Hakko 900M tips and the tip is grounded for anti-static protection. Please contact us for price (RRP. AU$30) and availability of our LCD Soldering Iron.
Mini Morse Code Practice Set
International Morse Code
This is one thing that really surprised us: Kids love Morse code. It fascinates them and they pick it up quickly. We used to do our Morse code activity with a Hi-Mound HK704 straight key and oscillator. But that setup costs over A$140, so we can't use it to do a class or group activity. The answer was to design our own Mini Morse Code Practice Set. And for A$10, it is a hit! Now, for the cost of coffee and a donut, kids can have their own set to take home. It comes with a microswitch, simulating a real telegraph key with a nice click-click action, a 2.5kHz sounder, a 3V lithium battery (CR2032) for up to 36 hours of continuous tone operation, all mounted on a double-sided PCB with a non-slip base. It measures only 64x36x15mm and fits in the palm of your hand. It comes in a zip-lock bag, with a laminated, credit-card size, Morse code chart and instructions.

  • This product is only available for shipping to Australia and Worldwide in quantities of 20, lithium batteries not included.
  • Other quanities, lithium batteries inluded, are available for only A$10 each, pick-up by prior arrangement only. Contact us to arrange pickup.

Mini Morse Code Practice Set - (20PCS) IN STOCK

SARCTRAC - Satellite Antenna Rotator Controller and TRACker
SARCTRAC was developed so that students at our School Amateur Radio Clubs can have fun and learn about Low Earth Orbiting satellites during our lunchtime sessions. To make friends with a satellite you first have to know when and where it will be; point a small, directional antenna at it and use an Amateur Radio transceiver to listen or talk to it. It is a bit like fishing in the sky and just as challenging. It is really exciting when the kids hear their first satellite and then realise where it is. They always ask. “Can we talk to it?” We say. “Of course, you can.” But the reality is that satellites move so fast that their position and radio frequency is constantly changing. Tracking a satellite by hand, while trying to tune an Amateur Radio transceiver for a typical 10-minute overhead pass, is a real chore for kids. Setting up an automatic tracking system, with a commercial antenna rotator and all the computers, cables and programs needed, is both tricky and expensive. So, we made SARCTRAC quick and easy for the kids to set up and now it does all the work for them. SARCTRAC helps kids spend more time listening to signals from space, receiving data or pictures and even communicating with others via satellites. School kids in space? No problems!

SARCTRAC takes minutes to set up, in the playground, on a summit or down at our local footy oval. It starts tracking visible satellites from the selected satellite list right away. We like to use our Yaesu FT-817, but for FM satellites you can just use a pair of hand-held, VHF/UHF radios - That way you can hear your own signal coming from the satellite. Our School Amateur Radio Club students think SARCTRAC is really fascinating to watch - and so do we. They try to imagine where the satellite is, by looking along the antenna boom and ask: "How can it just keep whizzing around up there?"

SARCTRAC takes all the hassle out of tracking satellites at school during lunchtimes: It does the all the satellite tracking, antenna steering and transceiver (rig) control automatically, so that students can just enjoy working satellites! It is best suited to portable operation, mounted on a sturdy tripod and attached to a small hand-held, dual-band satellite antenna. It can be set up quickly in the school playground and runs off the same power supply (12VDC) as the rig. It uses 3D sensors and DC motors to point the antenna at the selected satellite and does not require any on-site calibration. It has a built-in GPS receiver, to get accurate time and location information. It has a built-in World Magnetic Model, to get the local magnetic inclination and declination. It has a built-in WiFi web server, so students can control it via a web browser on their mobile devices. It has a built-in satellite transponder / beacon database, so students can select the correct satellite frequency and mode. It uses the latest orbital prediction models to accurately track selected satellites. It can automatically download the latest satellite orbital elements from the Internet, using a personal WiFi hotspot on the mobile device. It allows students to select the satellites they want to track. It displays the system status and the next pass of each satellite. It automatically schedules the tracking of each selected satellite in turn. It controls the frequency and mode (including manual fine tuning) of an Amateur Radio transceiver via a USB cable. Please read the SARCTRAC Manual for a full description.

This is a challenging DIY project for an experienced builder. You have to build it yourself using our step-by-step assembly instructions and your own tools. The finished unit should look like the one pictured above. Please review its Features, Specifications, Cautions and Limitations on our SARCTRAC Project page.

  • Buy the SARCTRAC kit; or
  • Buy the SARCTRAC software and provide your own hardware as listed in Table 1 - Parts List of the SARCTRAC Manual.
  • Download and print the SARCTRAC Manual (59 Pages, 4.5MB, PDF) for step-by-step assembly and set-to-work instructions.
  • Check out the SARCTRAC On-Line Forum for discussing and sharing any construction, setup and operation issues.
  • Check out the SARCTRAC Update Procedure (6 Pages, 0.5MB, PDF) for updating SARCTRAC in the future.
  • Provide your own assembly tools and sundries.
  • Accurately mark, drill and file holes in the enclosure using our detailed engineering drawings.
  • Wire up the components using our step-by-step instructions.
  • Assemble the components into the enclosure.
  • Use a PC to add your WiFi router credentials to the network.txt file on the USB Disk.
  • Insert the USB Disk into SARCTRAC.
  • Connect SARCTRAC to a DC power supply.
  • Wait until SARCTRAC beeps, twice.
  • Connect to SARCTRAC with via a WiFi enabled Mobile Device web browser.
  • Perform a simple, one-time, 3D Sensor calibration by turning the sensor all around.
  • Mount SARCTRAC on a sturdy tripod.
  • Attach a counterbalanced lift-arm for a hand-held satellite antenna.
  • Attach the 3D Sensor to the antenna boom using Velcro.
  • Connect an Amateur Radio transceiver to SARCTRAC via a USB cable.
  • Select satellites to track from a list.
SARCTRAC will then automatically track the selected satellites and control the rig.

                  Not suitable for permanent or unattended installation. Only to be used under adult supervision. Stand away from the antenna while operating. Immediately disconnect power to avoid any damage or injury.  

                  Please note that our SARCTRAC software is licenced to the original purchaser, who is then permitted to download and install free lifetime updates from our website. Our SARCTRAC software will only run from the first micro SDHC card and Raspberry Pi Zero it is installed on. If for any unforeseen reason you need to replace either of these components, just contact us.

                  SARCTRAC is warranted to work as stated, but only if it has been assembled, calibrated and used correctly. All hardware is 100% tested prior to delivery. We will provide some email support to help you get it up and running or to diagnose any problems or damage caused by incorrect assembly. Since it is a DIY project and the assembly process is outside of our control, the hardware is not warranted. However, we will refund the price of any hardware shortages or damage incurred in shipping. This is the total limit of our liability.

                  SARCTRAC is a DIY project. We accept no liability for your assembly, use, time or effort, or the specification, cost, continued availability or substitution of parts, or any costs, accidents or damages resulting from building or using this product, or any information or software supplied or it's fitness for purpose.

                  WHAT YOU WILL GET:
                  You will receive a receipt, licence and warranty by email by the next business day. The SARCTRAC kit includes all the components listed in Table 1 - Parts List of the SARCTRAC Manual including the SARCTRAC software pre-installed on a micro SDHC card. If you purchase the SARCTRAC software only, you will receive an email with instructions how to download (2GB) and create your own SARCTRAC micro SDHC card (not provided).

                  The SARCTRAC kit (which includes the SARCTRAC software pre-installed on a micro SDHC card) comes in a 19.5x11x10cm, 0.75kg carton. It is posted on the next business day after receipt of your order using international airfreight, including tracking information which is sent to your email address. However, no signature is required on receipt, so please select a secure destination address. The SARCTRAC software must be downloaded and copied to your own micro SDHC card. You will receive download instruction by the next business day. Once you have ordered on PayPal you will receive a PayPal confirmation email. You do not have to email your order to us as well. Your name, call sign, email and postal address are provided to us by PayPal. Please ensure they are all up to date.

                  HOW TO BUY:
                  Purchase either the SARCTRAC kit for AU$250.00 or the SARCTRAC software for AU$50.00 through the secure PayPal server Buy Now buttons below. Note: You must enter your First Name, Last Name and Call Sign (optional) for your SARCTRAC licence. This information will be displayed on the SARCTRAC web page - So please use your preferred names. It must identify an individual licencee. We may request that you provide an alternative name if it doesn't. Your transaction will only be processed if we have stock on hand. We will confirm that we have received your order, send you a receipt and ship your kit or send you download instructions by the next business day. Free shipping worldwide.

                  Note: We are temporarily OUT OF STOCK of the full kit due to increased demand and incoming freight delays caused by the COVID-19 pandemic. Please contact us to find out when new stock will be available.

                  SARCTRAC DIY Kit. AU$250.00 OUT OF STOCK
                  Licence: First and Last Name
                  Licence: Call Sign (Optional)

                  SARCTRAC Software (Download Only). AU$50.00 IN STOCK
                  Licence: First and Last Name
                  Licence: Call Sign (Optional)

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