In order for the receiver to start receiving a radio station, it must be tuned in. The way the device is configured depends on its design. There are classic analog receivers, digital scale analog receivers, and digital ones.
Instructions
Step 1
Regardless of the design of the receiver, select the desired range before adjusting it. If the device is single-band, you can skip this step. Range switches are divided into lever, push-button, drum. Some receivers are equipped with electronic switches with touch or pseudo-touch control instead of switches. The latter is most typical for devices with digital tuning, but sometimes such a solution is found in analog receivers.
Step 2
On an analogue tuned receiver, use the knob to select a station within range. As it rotates, the arrow moves along the scale. The scale is divided into sections corresponding to different ranges. Focus on the area that corresponds to the range included at the moment. The scale can be graduated not only in units of frequency, but also in units of wavelength. To calculate the frequency from this data, use the following formula:
F = c / λ, where F is the frequency, Hz, c is the speed of light, 299,792,458 meters per second.
Express the initial data in SI, and the result will be in SI units.
Step 3
If the receiver is analog, but equipped with a digital scale, adjust it in the same way, only read the frequency according to the digital indicator. Please note that there may be a slight delay in updating them. Also note that the digital scale reading may be somewhat inaccurate on cheap receivers.
Step 4
If the receiver is equipped with a digital frequency synthesizer, use the arrow buttons to enter its value. One of them decreases the frequency, the other increases it. Some receivers are also equipped with analog knob simulators - knobs. In addition, a number of high-end devices have keyboards for direct frequency entry.
