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6

OPERATION 

Using the FM Trap 

If the TV picture contains wavy or her-
ringbone-patterned dark lines, slide 

FM

TRAP

 to 

IN

 to reduce or eliminate this

interference.

If you have the amplifier connected to
an FM receiver and a TV, set 

FM TRAP

to 

OUT

 when you listen to the radio.

Note: If 

FM TRAP

 has no effect on the

picture, the interference might be from
a source other than FM. You might
need additional traps.

Using the Gain Control 

If your TV receives too strong a signal,
the picture tears and becomes unsta-
ble, and FM sound can become dis-
torted. To prevent this, use a small
flathead screwdriver to rotate 

GAIN

 to

provide the maximum signal amplifica-
tion without overload. 

• Rotate 

GAIN

 toward 

MAX

 for weak

or distant stations.

• Rotate 

GAIN

 toward 

MIN

 for strong

or nearby stations.

Automatic Protection Circuit 

The amplifier contains circuitry to
guard against damage caused by a
short anywhere in the cable from the
amplifier to the receiving unit. A short
between the amplifier and the power
supply causes the power supply to
shut down automatically, turning off
the power indicator and amplifier. If
you suspect a short, follow these steps
to correct it.

1. Unplug the power cord and dis-

connect the coaxial cable you sus-
pect is shorted.

2. Wait 10 minutes for the power sup-

ply to reset. During this time,
repair or replace the cable.

3. With the cable disconnected, plug

in the power cord.

4. If the power indicator lights,

unplug the power supply, recon-
nect the cable, and plug in the
power cord again. The power indi-
cator should light again. If the
power indicator still does not light,
take the unit to your local Ra-
dioShack store for assistance.

15-1109.fm  Page 6  Thursday, July 15, 1999  10:41 AM

Summary of Contents for TV FM High Gain Mast-Mount Antenna UHF/VHF/FM Amplifier with Switchable FM...

Page 1: ...if power fails or the connecting cable shorts Special Automatic Protection Cir cuit guards against cable shorts and prevents damage to connected re ceivers Surface Mounted Components assure long term...

Page 2: ...e to the amplifier s F connector labeled TO ANTENNA Attach the other end of this cable to the antenna s terminals using the supplied 300 to 75 ohm matching transformer if necessary Notes Be sure to fu...

Page 3: ...d a drip loop where the cable enters your house Be sure to weatherproof all con nections using plastic electrical tape or a coaxial sealant Installing the Power Supply Notes The power supply is design...

Page 4: ...FM splitter Cat No 15 1252 Caution Do not reverse the TO TV and FROM AMPLIFIER connec tions Voltage is present at the FROM AMPLIFIER terminal which might damage an improperly con nected receiver 6 Whe...

Page 5: ...than one TV Connect a Four Set Hybrid Splitter Cat No 15 1142 to TO TV and follow the splitter s owner s manual to make the connections to more than one audio video device Drip Loop Amplified Coupler...

Page 6: ...MIN for strong or nearby stations Automatic Protection Circuit The amplifier contains circuitry to guard against damage caused by a short anywhere in the cable from the amplifier to the receiving unit...

Page 7: ...a multiple re ceiver system Check all F connectors for dam age In particular examine the center pins Be sure the F connectors are properly attached Verify that the TV or FM receiver operates properly...

Page 8: ...he warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct the def...

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