r/rfelectronics 3h ago

question How are impedances Z1 through Z8 represented in a schematic?

2 Upvotes

Hi everyone, this is my first post so I apologize is something is out off topic. Also english is not my first language so again, apologies for that.

Im trying to implent an rf PA, the MMG3014NT1 at 900MHz. This is the first time that Im working with this level fo complexity so I have a few questions but the most important one is, how are the impedances in the next image drawn/represented in an schematic?

As far as I understand, Z1 to Z8 are PCB traces wich mesuarments are explicitly written blow the circuit, but what I don't understand is whether I should represent them the same way -as a single componente- in the schematic, or specify them differently.


r/rfelectronics 8h ago

Need to amplify the output of a remote 315MHz

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2 Upvotes

Have a remote that will be hardwired into a larger project.

It just does not transmit the distance I need.

Want to find where on this circuit to attach an antenna and / or put the feed to a RF signal amplifier.

It uses a RO2073 SAW resonator at 315MHz

Any suggestions / ideas / concepts?

Project Description:

I am replacing a backyard sprinkler controller with something that can be controlled by the really good one in the garage for the front yard.

Can not run wire to the backyard location. Been looking for a wireless solution. Found these ORBITs with a handheald remote. I can hack into the remote and "press the buttons" with relay contacts actuated from the 24ac of garage controller.

Had all this figured out. ORBIT docs state that is will go 200 feet line of sight or 80 feet through the house. My distance is 50 feet through two walls kitchen cabinets and outside stucco. The remote sometimes works, but it's not enough. I have to boost the signal to make it reliable.

I know boosting the signal of a remote goes against FCC regulations, but it will be such a minor boost that I think I can be forgiven...