Forum Discussion

BobKrogstie's avatar
BobKrogstie
Explorer
May 14, 2016

Winegard Sensar Amplifier

Has anyone ever had the amplifier go bad in the Sensar III head? I get no reception of the OTA channels others in the RV park are getting after multiple scans on the TV. I have 12VDC on the wall plate, the button is pushed in and the green light is on theoretically sending 12VDC to the amplifier in the antenna head.
  • I'm glad no one told me that the short(a relative distance) cable from the antenna to the power supply was easy to replace. In my Bounder, there were three pieces of cable from where the cable from the antenna entered the Bounder to the power supply. FOUR pieces in all.
  • I would take a 25' section of coax cable and connect it directly to the antenna and run it through a door or window and connect to tv. This way you can quickly tell if its the amp or the cable. My bet it is the short cable from the antenna to the mounting plate.

    That's all I got.

    Paul...
  • The amplifier is in the head. The unit on the wall or ceiling is a power supply that induces 12 volts onto the coaxial cable.
    As suggested earlier, check for 12 volts DC on the coax.
    Does you wall/ceiling unit have an LED and is the unit turned on?
  • Go up on the roof and check. a bad connector is the most likely problem.
  • We had a numb connection right at the roof a few years ago.

    I second that, go up on the roof and check.
  • RoyB wrote:
    I have never had my OTA built-in preamplifer go bad on us...

    You may have not pointed the OTA Antenna properly at the local close by National Broadcast Towns. You also may not have your HDTV menu set to ANTENNA mode as well before scanning in any digital TV signals...

    We get excellent HDTV service from the local towns just about everywhere we go using the crank-up Winegard BAT WING antenna that has the set of dipoles on the front of it...

    Roy Ken


    I am pointed to the local OTA antennae according to the AntennaWeb website. TV is set for air and multiple scans were done. Thanks for the tips.
  • Dutch_12078 wrote:
    Check for 12-volts at the coax where it connects to the Sensar before writing it off. The short length of coax from the Sensar to the through the roof fitting is a relatively common trouble spot. It's a pretty easy replacement, if that's the problem.


    Thanks, will check that.
  • RoyB's avatar
    RoyB
    Explorer II
    I have never had my OTA built-in preamplifer go bad on us...

    You may have not pointed the OTA Antenna properly at the local close by National Broadcast Towns. You also may not have your HDTV menu set to ANTENNA mode as well before scanning in any digital TV signals...

    We get excellent HDTV service from the local towns just about everywhere we go using the crank-up Winegard BAT WING antenna that has the set of dipoles on the front of it...

    Roy Ken
  • Check for 12-volts at the coax where it connects to the Sensar before writing it off. The short length of coax from the Sensar to the through the roof fitting is a relatively common trouble spot. It's a pretty easy replacement, if that's the problem.

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