CS201 2 Way Antenna Switch

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Quoting product code: A21HU


About this product


  • 2-way antenna switch
  • Connection: 3 x SO239
  • Power: 2,500 Watts

Product overview

• 2-way antenna switch• Connection: 3 x SO239• Power: 2,500 Watts• Frequency: 0-1000 MHz • Insertion loss: 0.1dB

This 2-way coax switch is ideal for use in antenna systems and service departments. It provides a very positive method of switching between two antenna systems and offers very low loss.

Rated 3 out of 5 by from Not as good as I'd hoped. I had a couple of problems with this switch. One was down to me and the other wasn't. I wanted to use it to switch a single long wire antenna between the MW and SW sockets on a Trio R1000 Comms Receiver. I made the connections and found that the receiver was absolutely dead. It took me a while to realise that the unselected output 'A' or 'B' of the switch was earthed to the switch's case. Because of the way the R1000's input circuitry is arranged this meant that the receiver antenna inputs were effectively short-circuited. I overcame this problem by wrapping plastic tape round the "cam" which activates the switch contacts. The second problem I had was that the switch contacts didn't always make correctly leading to a 10dB loss through the switch against the 0.1dB quoted. I often have to operate the switch several times before the contacts make correctly. The moving contacts are spring brass with what I assume are precious metal contacts. However they mate with a flat piece of metal without proper contacts. Given that there's no wiping action to remove tarnish from the contact surfaces, it's hardly surprising that the contacts don't always make correctly. This switch would probably be fine if used with a transmitter, as the higher voltages used would probably break down any contact resistance.
Date published: 2015-05-25
Rated 2 out of 5 by from Not reliable I had problems with this switch as when connectors are screwed onto it I found the centre pin of the sockets were pushed upwards causing the switch blade contacts to jam. I cured this by conecting up then pushing the pins back into position. Poor quality,
Date published: 2017-09-16
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I have 2 TV aerials that I wish to switch between during bad weather & poor signal reception. Presumably this SWITCH is what I need? (I am also going to connect a new aerial booster (with TETRA) which requires a 12v feed & this will distribute to 4 TVs.)

Asked by: Billy
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below : 0333 400 9500 or email technical@maplin.co.uk
Answered by: Darren
Date published: 2016-11-13

Is the switch bi-directional
Asked by: T.R
No sorry this product does not support that.
Answered by: DM
Date published: 2017-09-16
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