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15-1273C.fm Page 1 Thursday, July 15, 1999 11:59 AM
Cat. No. 15-1273C
OWNER'S MANUAL
Please read before using this equipment.
RF MODULATOR

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Summary of Contents for Radio Shack RF Modulator

  • Page 1 15-1273C.fm Page 1 Thursday, July 15, 1999 11:59 AM Cat. No. 15-1273C OWNER’S MANUAL Please read before using this equipment. RF MODULATOR...
  • Page 2 VCR, satellite receiver, etc.) into normal VHF TV signals that you can see on any regular TV set. You can use the RF Modulator by connecting it be- tween your TV and your: • Video camera (for security surveillance or for watching a child’s play area)
  • Page 3 15-1273C.fm Page 3 Thursday, July 15, 1999 11:59 AM Warning: To prevent fire or shock hazard, do not ex- pose this system to rain or moisture. CAUTION RISK OF ELECTRIC SHOCK. DO NOT OPEN. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK.
  • Page 4 Try to eliminate the interference by: • Moving your RF Modulator away from the receiver • Connecting your RF Modulator to an outlet that is on a different electrical circuit from the receiver • Contacting your local Radio Shack store for help If you cannot eliminate the interference, the FCC re- quires that you stop using your RF Modulator.
  • Page 5: Additional Parts Required

    PREPARATION ADDITIONAL PARTS REQUIRED You need the following items, not supplied with your RF Modulator, to connect it between a video input source (video camera, satellite receiver, etc.) and your • Two audio/video (not stereo) shielded cables with phono connectors •...
  • Page 6 15-1273C.fm Page 6 Thursday, July 15, 1999 11:59 AM CONNECTIONS Follow these steps to connect your RF Modulator. 1. Connect one of the audio/video cables between the video output jack on your video source and the RF Modulator’s jack. VIDEO INPUT 2.
  • Page 7 Hi-Isolation A/B switch. b. Connect the supplied 75-ohm short cable between the input terminal on the Hi-Isola- tion switch and the RF Modulator’s RF OUT terminal. c. Connect the 75-ohm coaxial cable between terminal on the Hi-Isolation switch...
  • Page 8 RF OUT 75-ohm VHF terminal on your TV. Note: If your TV has only 300-ohm VHF screw terminals, use a 75-ohm-to-300-ohm matching transformer to complete the connection. 4. Plug the RF Modulator power cord into a stan- dard AC outlet.
  • Page 9: Operation

    2. Turn on the TV and set it to the same channel (3 or 4) as the channel switch on the RF Modulator. Note: If you connected a Hi-Isolation A/B switch, set it to the B input position.
  • Page 10 15-1273C.fm Page 10 Thursday, July 15, 1999 11:59 AM 3. Turn on the input source (camera, etc.) and set on the RF Modulator to the position OHMS 1K/75 that gives the best picture. Note: For the best results, try both positions to find the best setting.
  • Page 11: Specifications

    15-1273C.fm Page 11 Thursday, July 15, 1999 11:59 AM SPECIFICATIONS Video Carrier Output Level ......63 dB V RF Output Channels .......... 3 or 4 RF Output Impedance ........75 Ohms Video Input Impedance......75 or 1 kOhms (switchable) Audio Input Impedance......13 ± 3 kOhms Specifications are typical;...
  • Page 12 15-1273C.fm Page 12 Thursday, July 15, 1999 11:59 AM RADIO SHACK LIMITED WARRANTY This product is warranted against defects for 90 days from date of purchase from Radio Shack company-owned stores and authorized Radio Shack franchisees and dealers. Within this period, we will repair it without charge for parts and labor.

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