3Com 15-1117A - Manuals - manualsarea.com

Page 2 - CAUTION

2 This symbol is intended to alert you tothe presence of uninsulated danger-ous voltage within the product’s enclo-sure that might be of sufficientmagnitude to constitute a risk of elec-tric shock. Do not open the product’scase. This symbol is intended to inform youthat important operating and maint...

Page 4 - ILLUSTRATION

4 Caution: Because the In-Line Amplifier uses the coaxial cable to carry the TV/radio signal fromthe DC power supply, proper connections are crucial. Failure to exactly follow the connectioninstructions in this manual can result in damage to your amplifier or your TV/radio receiver. Note: The amplif...

Page 5 - ONE ANTENNA/ONE RECEIVER SYSTEMS

5 ONE ANTENNA/ONE RECEIVER SYSTEMS If you are using a single antenna with a single TV/radio receiver, “Installation A” shows theproper connections. To avoid damage to your TV/radio receiver and/or the amplifier power in-jector, carefully check all the points listed below. • Do not separate the ampli...

Page 6 - Installation A

6 Installation A Do not plug in the power injector until all connections have been double-checked. ILLUSTRATION 15-1117a.fm Page 6 Thursday, July 15, 1999 11:15 AM

Page 7 - ONE ANTENNA/TWO RECEIVER SYSTEMS

7 ONE ANTENNA/TWO RECEIVER SYSTEMS If you are using a single antenna with two TV/radio receivers, “Installation B” shows the properconnections. To avoid damage to your TV/radio receivers and/or the amplifier power injector,carefully check all the points listed below. • For the first antenna and TV/r...

Page 8 - Installation B

8 Installation B Do not plug in the power injector until all connections have been double-checked. ILLUSTRATION 15-1117a.fm Page 8 Thursday, July 15, 1999 11:15 AM

Page 9 - Additional Amplification

9 Additional Amplification If additional amplification is needed, you can connect another amplifier in line with the first am-plifier. Remove the DC block from the optional second amplifier. One power injector will supplyenough power for both amplifiers. Note: The In-Line Coaxial Amplifier can only ...

Page 10 - AMATEUR TV SYSTEMS

10 AMATEUR TV SYSTEMS You can use the In-Line Amplifier with 2.4 GHz, amateur TV (ATV) systems, as shown in “In-stallation C.” If the power supply provided with your ATV antenna provides a center-positive power supply, itcan be used to power the In-Line Amplifier as well; you do not need the amplifi...

Page 12 - PROBLEM SOLVING

12 PROBLEM SOLVING If the TV/radio receiver does not operate correctly after installation of the In-Line Ampli-fier: • Immediately unplug the power injector. • Check all connections and compare them with the appropriate installation drawing(s) in this manual. If no problems are found in the connecti...

Page 13 - SPECIFICATIONS

13 SPECIFICATIONS Amplifier: Frequency: 5–900 MHz Gain: 5–50 MHz 8 dB MIN 50–300 MHz 10 dB MIN 300–900 MHz 9 dB MIN Input Capability .................................................................83dB µ V MIN (7 CHANNEL INPUTS) Max Input for –60dB Third Order Distortion ..............................

Page 14 - NOTES

14 NOTES 15-1117a.fm Page 14 Thursday, July 15, 1999 11:15 AM