![]() ![]() LTE Filter: Cellular phone data now uses some of the frequencies that were originally used for television channels 52-83. These devices are only a consideration if the station you want to receive is on VHF channel 6 or 7, which is rare. FM Traps are either fixed, or switchable. This feature is used to knock down the signal level of strong local FM stations that might cause interference to your TV station. Televes amplifiers feature advanced auto gain control that allows weak signals to get maximum amplification while limiting strong signals to stop potential damage.įM Trap: FM Traps strongly reduce FM Signal. Most amplifiers will pass all frequencies, but read carefully.Īuto Gain Control: This feature allows an amplifier to automatically reduce gain if a signal is so strong that it could harm your TV’s tuner. Using a VHF/UHF antenna on a VHF-only or UHF-only amp will result in one of those frequencies being blocked. If your TV Antenna receives VHF and UHF signal, you need a pre-amp that passes VHF/UHF signal. A high noise figure would be 4-6dB.įrequency VHF UHF FM: This one is pretty simple. Channel Master’s CM7777 is sought after for its low noise figure of about 2dB on UHF. The higher the noise figure, the lower the sensitivity of the tuners being used to pick up the signal. When an amp is added to a system, a small amount of signal noise is generated. ![]() Noise Figure: With digital signals, this often is more important than gain. If you only have 15dB of loss on your longest cable run and you use a 30dB amp, you can overdrive your tuner with too much signal. Warning: Higher-gain amps aren’t necessarily better. ![]() For instance, if you have 100ft of RG6 cable, which has 8dB of loss, you must make sure your amp is at least 8dB or stronger. You must make sure your gain is equal to or greater than your signal loss. Gain: This is the most important factor in choosing a preamplifier. To help you better understand and choose the right TV antenna preamplifier, here are some terms used to describe certain qualities of these devices: Call us at 877.312.4547 so our product experts can match you with the best preamplifier for your TV antenna installation. We also carry three Televes TV antennas that have built-in Televes preamplifiers, as well as a Televes 2-input and 3-input mast-mounted preamplifiers. This preamp has a 1dB noise figure, 18dB gain, and offers twin amps for separate VHF/UHF amplification. This device reduces signal drop out and pixelation for your HDTV antenna. If you need a preamplifier for your TV antenna installation, try the Winegard Boost XT ultra low-noise antenna preamplifier.
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