Wiring & diagram Info

• The circuit transmits on Medium Wave (this is the small problem with the police). IC1a, together with a sensor (try a 20cm x 20cm sheet of tin foil) oscillates at just over 1MHz. This is modulated by an audio frequency (a continuous beep) produced by IC1b. When a hand or a foot approaches the sensor, the frequency of the transmitter (IC1a) drops appreciably.
• Suppose now that the circuit transmits at 1MHz. Suppose also that your radio is tuned to a frequency just below this. The 1MHz transmission will therefore not be heard by the radio. But bring a hand or a foot near to the sensor, and the transmitters frequency will drop, and a beep will be heard from the radio.
• Attach the antenna to a multiplug adapter that is plugged into the mains, and you will find that the Medium Wave transmission radiates from every wire in your house. Now place a suitably tuned Medium Wave radio near some wires or a plug point in your house, and an early-warning system is set up.
• Instead of using the sheet of tin foil as the sensor, you could use a doorknob, or burglar bars. Or you could use a pushbutton and series resistor (wired in series with the 33K resistor - the pushbutton would short it out) to decrease the frequency of IC1a, so activating the system by means of a pushbutton switch. In this case, the radio would be tuned to a frequency just below that of the transmitter.

Satellite radio represents the newest and best technology for receiving music signals. This simple guide will enable you to install a satellite radio receiver in your car.

• Step 1- Install the mounting bracket. Select a location that does not obstruct the driver’s view of the console or the road. The bracket should also be placed within arm’s length of the driver’s seat. To mount the bracket to the dash, first clean off the spot with alcohol wipes. Wait for this to dry, then remove the adhesive backing from the bracket and press firmly onto the dash for at least 30 seconds. Wait at least an hour before applying any weight to the bracket. The bracket can then be reinforced with screws or bolts if needed. Once the bracket is in place, slide the radio unit in place.

• Step 2- Connect the unit to the stereo. If your stereo has an auxiliary in port, use the supplied adaptor to connect the unit directly to this port. If you plan on using a cassette adapter, connection is as simple as putting the cassette into the stereo. If you choose to use an FM modulator, set both the modulator and the head unit to the same frequency.

• Step 3- Connect the antenna. If the antenna has an adhesive backing, use the same process as mounting the bracket. If the antenna is magnetic, simply place it on the roof of the car. The optimal placement for the antenna is the highest point on the car. Run the antenna wires through one of the door seals, but make sure the cord will not be damaged by the normal operation of the door. Once the cord is inside the car, run it beneath the carpet all the way up to the satellite tuner and plug it in.

• Step 4- Connect the unit to a power source. This is usually done by way of a cigarette lighter adapter. If you plan on hardwiring the power line, use crimps and appropriate fuses to make a good connection to a 12v switched power line.

• Step 5- Activate the satellite radio. This can usually be done online or over the phone. You will need the activation code for the radio. Once the radio is activated, it will function normally.

Head unit controlled Satellite radio


• Step 1- Mount the tuner box. Select a location that will be out-of the way, and easy accessible for wiring purposes. This is usually either in the trunk or under one of the rear seats. Use the included hardware to bolt the box into something solid. Be wary of puncturing floor panels, and be aware of what you are drilling into. Do not place the unit beneath any carpeting.




• Step 2- Wire the power lines for the box. Before you do this, disconnect the negative terminal from the car battery. Find a 12v line, either switched or non-switched, that you are able to tap into. It is best to use either the head unit power source or the cigarette lighter power source. To split the line, clip the existing cable at the desired location and crimp the three lines back together. Fuse the line before and after the split. Run the power cable beneath the carpet back to the tuner box and plug it in.




• Step 3- Hook the tuner box to the stereo. The unit should come with two cables: an RCA patch cable and a bus controller cable. Plug both of these cables into their respective ports in the tuner box and run them up to the head unit. Plug them into the ports in the back of the head unit.




• Step 4- Mount the antenna. If the antenna has an adhesive mount, first clean the area you intend to mount it on, then remove the adhesive backing and press firmly for at least 30 seconds. In the case of a magnetic mount antenna simply place it where you want it. The best mounting location is the highest point on the car. Be sure the antenna is not obstructed by any part of the car. Run the wires into the car through a door seal, then underneath the carpet until you reach the tuner box. Plug both the ground (terra) and satellite antenna cables into the unit.




• Step 5- Activate the unit by following the instructions provided. You will need the activation or identification numbers for the unit, so write these down before you call.