A squelch is the circuit that reduces static and excess noise on a wireless receiver or other device. Setting it properly improves audio quality by filtering out unwanted signals.Continue Reading
First, ensure that the squelch is set to its lowest setting. This does not block the incoming signals and allows you to hear the noise on the open channel. You should also make sure the volume setting, if independent from the on-off switch, is set to minimum.
Once the receiver is on, turn the volume up until you hear the hiss of static on the channel.
Turn up the squelch setting until the static sound just disappears. This ensures that weak signals and interference are filtered out. Stronger signals should have enough strength for the receiver to pick them up and let them through.
The first squelch adjustment gets rid of static and interference, but you may still receive weak signals from stations out of range. If these are bothersome, you may adjust the squelch upward further to block them out. However, the higher the squelch is set, the more likely it is to block out legitimate signals.
A dipole antenna uses two conductors of the same length to detect radio waves and transmit the corresponding variable electrical current to a receiver. Each conductor represents one-quarter of a wavelength, and when combined, the dipole can detect a half-wavelength signal. The length of the two conductors determines the operational frequency.Full Answer >
Walkie-talkies are small portable radios with both a receiver and a transmitter. They can both broadcast and pick up radio signals and make for an easy way to communicate when cellphone signals are not available.Full Answer >
When buying a stereo receiver, be sure to consider the number of available HDMI inputs, think about built-in wireless connectivity features and don’t pay much attention to claims of superior sound quality. A stereo receiver is the heart of a home audio or theater setup, so it’s important to choose one wisely.Full Answer >
Most Grundig radios require portable shortwave receiver, typical shortwave receiver and tabletop receiver repairs. These kinds of repairs are common in Grundig Satellit 800, 700, 650 and 600 models. Others include Grundig Yacht Boy 400 and Grundig Classic 960.Full Answer >