Why do you want to increase the power output? If it is to increase range
- can you not make better use of the power you have by using more
directional transmitter and receiver aerials? A couple of nice 433MHz
yagis should do nicely..and will possibly be a more legal solution than
the one you are suggesting.
But it is easy enough to design a linear amp that will operate at UHF.
(instability/ physical layout is the biggest problem)... Just search for
UHF broadband amp designs.
i'm thinking of doing a hobby project involving controlling a robotic device
wirelessly. I'm thinking of using Jaycar transmitter and just want to boost
the power a bit for better transmission. do you think this jaycar device is
suitable for what i am trying to do? the catalog number for it is ZW3100 for
transmitter and ZW3102 for receiver (or search "wireless module"). it says
the output power is 3dBm, what would be the attenuation of air? so i'm only
trying to transmit some digital control signals. i think this item is
What range do you want? Is there anything between transmitter and
receiver (eg walls)? Are there any sources of interference nearby (eg
Those units work at UHF. Just like lighthouses and telescopes use lenses
and reflectors to make the most of the lamp power- it is possible to get
"better transmission" using reflectors and directors with your radio
link. That should be the first thought and not just using a more
powerful transmitter. Simple reflectors at both ends will have a much
greater effect than doubling the transmitter power..
Furthermore to the last post I posted, www.altronics.com.au has a product
cat # Z6900. the datasheet shows an output power of 10mW, is it correct to
say the output is 10log(10)dBm? hence more power than the jaycar
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