This is a six day course, undertaken over three complete weekends. Course days start at 10:00 and end at 16:00.
The next Intermediate course takes place on 22, 23, 29 February, 1, 7, 8 March 2020.
Please dress warmly in cold weather (the shack is a wooden hut), and bring a packed lunch.
Topics included in the course are
- Diodes & Transistors
- License Regulations
- EMC (Electromagnetic Compatibility i.e. interference issues)
One day of the course is for practical exercises. These are mandatory – please note that if these are not completed, a student may not sit an exam.
The practical exercises include
- Make five or more soldered joints
- Make circuit with switch, 2 LEDs or bulbs and resistors.
- Demonstrate transistor as switch; measure gain
- Student project (MW radio)
- Measure V and I in series and parallel circuits
- Measure resistors; compare with markings
- Determine R by measuring V and I for two or more resistors
- Demonstrate that a crystal oscillator is stable when subjected to reasonable temperature changes and mechanical shock.
- Demonstrate that a variable frequency (LC) oscillator is not very stable when subjected to reasonable temperature changes and mechanical shock.
- Find at least 2nd and 3rd harmonics of oscillator using a receiver or spectrum analyser
- Demonstrate the reduction in harmonics by using a low pass filter or AMU, measured using either a receiver or spectrum analyser
- Calibrate variable RF oscillator using a receiver, frequency counter or spectrum analyser. Band edges and two intermediate points are required to be marked at zero beat.
The exam consists of 46 multiple choice questions, with a pass mark of 28 (61%). The time allowed is 1 hour 30 minutes but most students complete the exam in half that time.
Exams are taken online – you need to bring a laptop computer. Students get their results there and then on completion of the exam.