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Author Topic: Lawmate VTx 2.4Ghz 500mW Impedance?  (Read 322 times)

swake

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Lawmate VTx 2.4Ghz 500mW Impedance?
« on: June 03, 2017, 01:35:36 PM »

Hello, I'm French so excuse me for my bad English :(

One question: how do you do to measure input impedance of transmitter?

Thanks
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Coyote

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Re: Lawmate VTx 2.4Ghz 500mW Impedance?
« Reply #1 on: June 04, 2017, 11:37:06 AM »

Hi and welcome. You don't measure it. The Impedance of a stock 2.4 Lawmate 500mW VTx is something 360 Ohms as opposed to the normal 75 Ohms.

If you need to change the video level from an OSD that's say conflicting with it then add a 75 to 100 ohm resistor between video input and ground.

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