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Re: Brand new to both TinySA AND Spectrum Analyzers


 

OK, I ordered the following:








Now as I understand it from the previous responses, I should be using the LNA in conjunction with these two,?correct?


Thanks, Joe



On Mon, Jan 20, 2025 at 9:21?PM VK3DPM Dave via <davepm=[email protected]> wrote:
If you have a 1W transmitter, make sure the attenuator is at least double the power. Most handhelds are 5W so plan that you may accidently output the max. What lots don't know is attenuators can change when they heat up, if the resistor(s) to ground disconnects or goes open then you potentially?can overload your tinySA.? This is why in a lab directional couplers are used.? Attenuators are either a T or pi configuration 1 or 2 resistors to ground. For HAM use either is OK as long as it can safely dissipate?the power.

On Tue, 21 Jan 2025 at 12:44, Matthew Rapaport via <quineatal=[email protected]> wrote:
Not 10 watts, 1 Watt! Yes it's much more than the minimum needed to protect the unit, even to get a decent undistorted signal. I can only say try it--what have you got to lose?--and see what nice signals, esp with LNA on, (measured harmonics and all) you get.

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