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1/4 wave antenna simulation for TwinTalker 3600

After have seen what happens with the original spring antenna, I simulated a 1/4 wave antenna to find out what could happen at my good TwinTalker 3600 if I substitute the little spring with a true antenna.

Respect to the spring antenna simulation, I only substituted the spring with a copper wire 1 millimetre diametre and 16.8 centimetre long, so the final graph of the radio/antenna system could be like this:

schema antenna 1/4 d'onda twintalker 3600

antenna simulation 1/4 wave for twintalker 3600 1/4 wave antenna's gain for twintalker 3600

VSWR 1/4 wave antenna for twintalker 3600 impedance 1/4 wave antenna for twintalker 3600

vertical radiation pattern for 1/4 wave antenna for twintalker 3600 horizontal radiation pattern for 1/4 wave antenna for twintalker 3600

tridimensional radiation pattern for 1/4 wave antenna for twintalker 3600

We can see that, substituting the poor spring antenna with a whip of 16.8 centimetres long, antenna's gain increases of 2 dB. Considering that, with our little power, all counts, maybe it worth explant the spring and substitute it with a simple straight wire. I'll have to try.

Below, the .nec file of this simulation for 1/4 wave antenna of my TwinTalker 3600 just seen.

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