Are you looking to improve your TV and FM reception. Do it with an amplifier this page shows signal booster called Pre-amps from Channel Master, Winegard and Antennacraft
Pre-Amplifiers good for all digital and HDTV off air signals
A Pre-Amplifier (pre-amp) is a mast or antenna mounted amplifier used primarily to Boost the signal level while not amplifying noise. The objective of any antenna installation is to deliver enough signal to the TV set to override the noise . A "weak" signal is one that is not strong enough to override the level of the noise in the set. Another obstacle is the signal loss incurred while traveling through the transmission line connecting the antenna to the TV set. An antenna that has acceptable gain at the antenna tapoffs but encounters excessive loss due to long cable runs will also deliver a poor quality picture to the TV set due to not enough signal makes it to the set to override the noise level. A pre-amp would be used to compensate for the losses in the transmission line as well as the noise level of the set.
All pre-amps have a power supply that plugs into an AC outlet inside the house that lowers the voltage and sends it up the coax to power the amplifier which is mounted up near the antenna. The benefit is that you get amplification before any line loss or noise and you don't have to run 117 AC up to your roof. NOTE: Don't install a regular splitter between the power supply and the pre-amp or you will short circuit the system and it won't work. You can install a special splitter that is power passive on only one port. Or put a DC Block on the outputs that don't run to the power supply. Also you can't put any type of matching transformers between the power supply and the pre-amp.
WINEGARD PREAMPS:
use a preamp on your antenna to increase the signal to noise ratio. Generally the higher the gain the better the results but sometimes if there is a strong local station you may want a lower gain preamp or one that just amplifies UHF and passes the VHF.
GOOD
# AP-8700(75 ohm in 75 ohm down)GAIN 17db VHF 19db UHF ON SALE THIS WEEK $44. Regular cost $57.34 ea
BEST
#AP-8275 (75 ohm in 75 ohm down)GAIN28dbVHF28dbUHF $49 REGULAR $80.73 ea YouTube VIDEO
UHF ONLY (pass VHF)
# AP-4800 (75 ohm in 75 ohm down) 28db UHF By-Pass VHF ON SALE THIS WEEK $ 49 Regular $58.98 ea
SPECIAL USE PRE-AMP
HDP-269 (75 ohm in 75 ohm down) Special Pre-amp used in high input suburban area to boost signal before long cable run. $58.13
Only 12 dB with 3 dB Noise but can take 350,000 uV of input so it will not overload in strong signal location.
ALSO SEE WINEGARD DISTRIBUTION AMPLIFIERS
ANTENNACRAFT NEW! 10G212 High-Gain Pre-Amplifier $34.95
Gain: Up to 30 dB UHF/VHF
Mast mounted with indoor power supply * 10 dB Adjustable Gain Control * Low Noise * Remote Switchable FM trap * Cable Shorting Protection * 75 ohm input/output * UL listed, AC operation
WARNING: DO NOT OVER TIGHTEN F CONNECTOR ON TO THE PRE-AMP CONNECTIONS. GENTLY FINGER TIGHTEN ONLY OR YOU RISK BREAKING THE CONNECTOR OFF THE PRE-AMP CIRCUIT BOARD
ALSO SEE CHANNEL MASTER SUPER TITAN PAGE
CHANNEL MASTER
MATV MAST MOUNTED PREAMPLIFIERS TiTAN
The Titan range of mast mounted amplifiers has been completely reengineered and updated. These amplifiers represent the ultimate in preamplifier performance. They are designed for use as an ultra low noise, ultra high gain preamplifier for deepest fringe applications and MATV headend applications. Their very high signal handling also makes them suitable for use as a mast mounted, ultra low noise distribution amplifier for use in small MATV systems. All models feature 75 Ohm input and output connections in line with modern headend engineering practice. Two models are available.
CM-7777 TITAN 2 Antenna
Preamplifier - High Gain SOLD OUT Use AP8275
Above
The Channel Master television antenna booster (preamplifier) will amplify
digital and HD signals received by your antenna. This antenna preamplifier
is a high gain, low noise preamplifier used for weak signal areas to allow
a weak signal that is present at the antenna to be amplified to a viewable
strength. This TV antenna preamplifier works best for persons in weak signal
areas and is subject to overdrive if used in areas with fairly strong signals.
In stronger signal areas our medium gain preamplifier, the CM 7778 is a better
choice. Preamplifiers are also used if you anticipate distributing your signal
with a digital splitter to multiple outlets throughout your house as splitters
reduce the signal strength available at each output.
• Combined VHF/UHF inputs
• Gain: 30 dB, 54 to 1002 MHz
• Includes a switchable FM trap
• Outdoor rated housing
• Mast mounted amplification unit with indoor power supply which connects
via coaxial cable
• Preamplifier and its power supply can withstand up to 140° F
temperatures
* Surface-mounted components for automated production and consistent high performance.
* Rugged die-cast aluminum housing - fully shielded.
* Simple installation - hardware included.
* High gain and ultra low noise figure from latest generation transistors give optimum sensitivity.
* Ultra linear transistors provide high output capability for optimum signal handling.
* Optimum filtering for rejection of out-of-band signals.
* Uninterrupted operation even under the harshest environmental conditions.
* Full lightning and surge protection.
* Cool running, redesigned 117VAC power supply, Model 0747 is included with each model. UL and cUL listed. (Model 0747 power supply also available as a separate model.)
7777 7778
Number of Inputs* 1 (VHF&UHF) 1 (V/U/FM)
Input and Output Impedance 75 75 Ohms
VHFGain 30 dB 16 dB
UHF gain 30 dB 16 dB
A Distribution Amplifier is a type of amplifier that is mounted indoors, usually in a central location, and is used to "distribute" signal to multiple locations. In areas with very weak signals you would need to use a pre-amplifier first to boost the signal levels up to a point where they can be distributed.
Distribution amplifiers are available in many configurations. There are distribution amps designed to cover just off air frequencies and those designed to cover off air and cable frequencies. Channel Master offers the following types of distribution amplifiers: Single output models, Multiple output models (2, 4, and 8 outputs), Broadband models (covers wide range of frequencies, ie...50 to 900 MHz), and Split Band models (designed to cover select frequencies, ie...VHF, 54 - 216 MHz; UHF, 470 to 900 MHz)
PAGE #10 F TYPE CONNECTORS, for RG6, RG59 and RG11, ground Block, DC Voltage block, right angle adapters, 75 ohm terminators, F Inline splice
PAGE #11 Compression Seal F TYPE CONNECTORS , Tools, SPLICES AND INTERSERIES ADAPTORS also Compression installation Tool.
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