USE
A PREAMP TO CLEAR UP YOUR PICTURE
AND PULL IN DISTANT TV CHANNELS
ALL TV ANTENNA AMPS , TV ANTENNA PREAMPS, CHANNEL MASTER , WINEGARD , BLONDER TONGUE
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 eliminate "snow" on the TV screen. Snow is actually electrical noise that is generated by the TV receiver and other electrical devices. The objective of any antenna installation is to deliver enough signal to the TV set to override the noise (snow). 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 "snowy" 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. Channel Master INDEX PAGE
CHANNEL MASTER
USE
A PREAMP TO CLEAR UP YOUR PICTURE
AND PULL IN DISTANT TV CHANNELS
$ FOR $ A PREAMP GIVES YOU THE MOST TV SIGNAL IMPROVEMENT FOR YOUR MONEY.
ADDING A PREAMP TO AN ANTENNA SYSTEM HAS THE SAME AFFECT ON YOUR TV RECEPTION AS WOULD INSTALLING AN ANTENNA UP TO 16 TIMES BIGGER
CM SPARTAN 3 MAST MOUNTED PREAMPS ARE THE MOST POPULAR PREAMPS IN THE USA. ALL MODELS HAVE 16DB GAIN ON VHF AND 23DB GAIN ON UHF.
0064DSB U/V/FM 300 OHM ( FLAT LEAD ) INPUT 75 OHM DOWN YouTube VIDEO SOLD OUT USE 0068DSB
0068DSB U/V/FM 75 ohm coax in and 75 OHM down Pre-amp $59.95 YouTube VIDEO NOW BACK IN STOCK
0264DSB U/V/FM SPLIT INPUT 300 OHM IN 75 OHM Down Lead ( use when you have a VHF antenna and a second UHF antenna) DISCONTINUED
# 0268DSB U/V/FM SPLIT INPUT 75 OHM IN 75 OHM DOWN discontinued use CM 7778
# 0071DSB UHF ONLY 300 OHM IN 75 OHM DOWN Winegard AP4800 or AP4700 ( they are coax in and out)
# 0040DSB VHF/FM 300 OHM IN 75 OHM DOWN DISCONTINUED USE A WINEGARD AP3700 or AP3800
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The Spartan 3 preamplifiers range has been enhanced with the addition of models OO65DSB and 0265DSB. These units are identical to the similar OO64DSB and 0264DSB except they have been designed for optimum performance with a supply voltage of 12-22 VDC as supplied by most satellite receivers
GAIN AND NOISE CHARTS ON SPARTAN PREAMPS
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 2 YouTube VIDEO
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.
7778 covers both VHF and UHF bands 23dB UHF 16 dB VHF
Model 7778 & 7777 offer Spartan 3 TM specifications in the diecast TitanTM housing, cover both VHF and UHF bands with separate amplification in each band for maximum. signal handling.They may be configured for either separate or combined VHF and UHF inputs.They include a switchable FM trap.
* 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* 1/2(VHF&UHF) 1/2(V~U~F)
Input and Output Impedance 75 75 Ohms
VHFGain 23 16 dB
VHF Noise Figure 2.8 3 dB
VHF Output 57 56 dBmV
Switchabile FM Trap Yes Yes
UHF gain 26 23
UHF noisEfigure 2 2.2 dB
UHF Output 51 5O dB
ALSO SEE CHANNEL MASTER DISTRIBUTION AMPS >>>>>>>
WINEGARD PREAMPS:
use a preamp on your antenna to increase the signal to noise ratio. Clears the snow out of those distant TV stations. 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 ON SALE FOR $59 REGULAR $80.73 ea YouTube VIDEO
UHF ONLY (pass VHF)
# AP-4700 (75 ohm in 75 ohm down) 19db UHF By-Pass VHF $45.48 ea.
View Cart # AP-4800 (75 ohm in 75 ohm down) 28db UHF By-Pass VHF ON SALE THIS WEEK $ 49 Regular $58.98 ea
VHF ONLY (pass UHF)
# AP-3700 (75 ohm in 75 ohm down) 19db VHF By-Pass UHF $45.48 ea
SEPARATE U & V INPUTS
#AP-2870 (75 ohm in 75 ohm down) GAIN17dbVHF19db UHF $57.29 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.
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.
Troubleshooting A Winegard Power Supply
There are sometimes PRE-amps on the CLOSE OUTS Page hat have been returned but I have checked out and they test good.
ALSO SEE WINEGARD DISTRIBUTION AMPLIFIERS
ANTENNACRAFT NEW! 10G212 High-Gain Pre-Amplifier $29.95 YouTube VIDEO
Gain: Up to 30 dB UHF/VHF
Mast mounted with indoor power supply
10 dB Adjustable Gain Control
Low Noise: <3.5 dB VHF,< 4.0 dB UHF
Remote Switchable FM trap
Cable Shorting Protection
75 ohm input/output
UL listed, AC operation
BLONDER TONGUE PREAMPS GO TO BLONDER TONGUE LINK PAGE>>>
BT #SUBURBAN III BROADBAND VHF/UHF PRE-AMP
BT #VAULTER III BROADBAND VHF/UHF PRE-AMP
BT #CMA-b SINGLE CHAN. VHF/FM PRE-AMP. 54-216MHZ INFO
BT #CMA-LB BROADBAND LB VHF PRE-AMP 54-88MHZ INFO
BT #CMA-HB BROADBAND HB VHF PRE-AMP 174-216MHZ INFO
BT #CMA-BB BROADBAND VHF PRE-AMP 54-216MHZ INFO
BT #CMA-Uc BROADBAND UHF PRE-AMP 470-806MHZ INFO
SCMA SINGLE CHANNEL VHF OR FM PREAMPLIFIER 54-216 MHz INFO
SCMA-Ub SINGLE CHANNEL UHF PREAMPLIFIER 470-806 MHz INFO
PS-1526 POWER SUPPLY FOR PREAMPS 48ma INFO
PS-1536 DUAL POWER SUPPLY FOR PREAMPS 100ma INFO
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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NEW CM Catalog
08/09