Have you contacted the supplier to verify what the typical range should
be and get their recommendation for appropriate antenna ?


Carsten Hjorth wrote:
"Tam/WB2TT" skrev i en meddelelse
. ..
"Carsten Hjorth" wrote in message
...
Hello!

I just bought this: http://www.rustindustries.co.uk/remote.htm
The range is only 10-15 meters in free air, only 5-7 meters indoor.
Is it possible to connect a whip type antenna?
I have calculated a length ca 17 cm.
But i cannot see where to connect the antenna.
The transmitter has a loop style antenna, powered by one transistor and a
oscillator of some sort, i have drawn a schematic:
http://media.openbloc.com/1tpwr
I have tried to connect the antenna to the collector, but that gave me no
output at all.

Regards

Carsten Hjorth

You might want to do something with the receiving antenna. My 4xx MHz
garage door opener has about 30 meters range.

Tam/WB2TT

I´m in Denmark and its frezing...
Should i extend the wip antenna on the receiver? Now it´s a 1/4 wave, should
i try full wave?

/Carsten