MCM Electronics

High Isolation Switch - A/B By Distributed By MCM (33-1485) MCM Part #33-1485

4.5 stars 4 reviews
Qty.Volume Price

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.

Specifications Top

  • Two–way coaxial A/B switch
  • Use for antenna, CATV or VCR
  • Greater than 65dB isolation through 550MHz and 50dB through 900MHz
    Part Numbers
    MCM Part #:33-1485
    Distributed By MCM Part #:33-1485
    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
    View in Catalog
  • Product Reviews Top

    • by stutzderryl

      on 7/15/2013

      A great RF two way switch

      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.

    • by vstrat

      on 1/11/2012

      Review 33-1485 - High Isolation Switch - AB

      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.

    • by installpro

      on 6/29/2011

      Reliable, works every time

      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.

    • by OldHud

      on 10/22/2007

      dirty switch

      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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