K8MHZ
Senior Member
- Occupation
- Electrician
I am no stranger to RF switching. I have one for one of my basement lights. The remote is at the top of the stairwell. Today I will be working on a 433 remote for testing air brakes and one of the things I will have to do is change the antenna on the receiver because it sucks. It's just a coil of wire about and inch and a half long. I am going to try to make a 1/4 wave vertical using the metal piping in the valve set as a counterpoise.
One issue I have to circumvent is polarization. If the receiver is vertically polarized, it will be at nearly a null if the hand held transmitter is horizontally polarized. The techs that will be using the device are diesel mechanics and just want the thing to work. They don't know anything about polarization, and don't care.
I have real world experience with 433 RF, and I am telling you there is no legal set up that will work for the OP.
Insteon uses the electrical conductors as a path for the signal to switches. As I posted earlier, it seems to work up to 400' with no problems.
One issue I have to circumvent is polarization. If the receiver is vertically polarized, it will be at nearly a null if the hand held transmitter is horizontally polarized. The techs that will be using the device are diesel mechanics and just want the thing to work. They don't know anything about polarization, and don't care.
I have real world experience with 433 RF, and I am telling you there is no legal set up that will work for the OP.
Insteon uses the electrical conductors as a path for the signal to switches. As I posted earlier, it seems to work up to 400' with no problems.
Last edited: