Make Remote transmit further

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stuee

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Hi.
I purchased a 4 power point remote switch pack.
**broken link removed**

The distance im getting is about 10m max. I want to try make this work 15-20m. I was hoping i could extend the internal antenna on the transmitter and receiver but when i opened up there is no antenna.
Could one of you clever people tell me where to hook up a wire and what is best to use.

thanks
 

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you need >4x the signal to get 2x distance

use AA Lithium cell in Tx at same V or CR123 at 3V and it doesnt burn out device
 
Thanks for the replies but at mentioned in the OP i know what you have told me, im just not sure on the boards where to solder a wire for the TX & RX, also the remote uses the 12v small battery.
 
Be aware that the switching unit which plugs into the mains outlet does not appear to isolate the control electronics from the mains supply, and so could be dangerous to have an added wire antenna.

As for where to connect an external antenna, due to the simple (crude ?) nature of the RF circuitry, it is likely that the loading effects of the external antenna on the circuit will offset any gains due to using a larger antenna.

JimB
 
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