MCM Electronics

High Isolation Switch - A/BMCM Part #: 33-1485  |  Distributed By MCM Part #: 33-1485

High Isolation Switch - A/B 4.3 stars from 4 reviews.
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High Isolation A/B Switch
Perfect for selecting between two RF sources into a single television. Ideal for switching multiple antennas pointed in different directions, or selecting between an antenna and cable or satellite. All connections are "F" type female.

Product Description

  • Two–way coaxial A/B switch
  • Use for antenna, CATV or VCR
  • Greater than 65dB isolation through 550MHz and 50dB through 900MHz

  • Product Reviews

    • "A great RF two way switch" by stutzderryl on 7/15/2013
      Overall: 5 out of 5

      This is a great switch if you need to get two coax cables attached to one TV. It has very clear output that does not degrade the TV signals. We use it to switch between cable TV and satellite TV inputs on our TV.

    • "Review 33-1485 - High Isolation Switch - AB" by vstrat on 1/11/2012
      Overall: 5 out of 5

      This is a very well made switch, and I used it to switch from Cable to a DTV box, without any intereference.

    • "Reliable, works every time" by installpro on 6/29/2011
      Overall: 5 out of 5
      Top 10 Contributor

      I don't have nearly as many instances where these are used as in the past, but still have an occasion to need them. They are durable, well made and do the job. Whether switching between an antenna, cable or satellite or modulator output, they work flawlessly. If you still need an A-B switch, this is the way to go.

    • "dirty switch" by OldHud on 10/22/2007
      Overall: 2 out of 5

      I tested 5 of these switches. The contact resistance is not repeatable. For either the on or off (input connected to 75 Ohm load) position, the dc contact resistance changes with each actuation. Some switches are worse than others. In one case the it was 100 Ohms! Didn't check with a network analyzer, but in use signal level varies between actuations. Spend a little more and buy the brand name.

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    Package Specifications & Dimensions
    Weight:0.361 lbs.
    Warranty:90 days
    Need to Return?
    Length:4 in.
    Width:3.5 in.
    Height:1.5 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages

    MCM Cat 57, Page 239

    MCM Cat 56, Page 102

    Mfr. Info

    Distributed By MCM Logo
    Mfr. Name:Distributed By MCM
    Mfr. Part Number:33-1485