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Re: Measuring Impedance for the 433 MHz RTL-SDR Antenna


 

QUOTE: You will do far better to connect the right most antenna and
collapse it
toa 1/4-wavelength at 433 MHz
Why do you say that ? Can't find the extensible antenna anyway.
***

Because the other two antennas shown in the image will not work well if at
all on 433 MHz.

The extendable antenna in the right-most antenna in the image.

Dave - W?LEV




On Sat, Mar 8, 2025 at 12:39?AM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:

On Thu, Mar 6, 2025 at 03:38 PM, kellogs wrote:



You will do far better to connect the right most antenna and collapse
it
toa 1/4-wavelength at 433 MH
Why do you say that ? Can't find the extensible antenna anyway.
Because the antenna that is center loaded with a coil will have less gain
than a 1/4 wave marconi antenna.





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*Dave - W?LEV*


--
Dave - W?LEV

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