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No hay artículos en el carro Especificaciones eléctricas:
Rango de frecuencia: 430-436 MHz.
Ganancia (dBi): 7 dBi.
Polarización: vertical.
Sin Circularidad (dB): ± 0,5
Impedancia (Ω): 50 Ω.
Potencia máxima: 50 W. Protección contra rayos: tierra directa.
Tipo de conector: SMA - Aguja interna de rosca.
Material del elemento radiante: cobre.
Material del radomo: EVA.
Color del radomo: negro.
Dimensión (mm): 253 mm (sin doblar).
Temperatura de funcionamiento (℃): -40 ~ + 70 ℃.
Temperatura de reposición (℃): -55 ~ + 80 ℃.
El paquete incluye:
1 antena de alta frecuencia de 433 MHz de NOYITO, 7 dBi, ganancia de antena omnidireccional.
JGH
Comentado en los Estados Unidos el 4 de abril de 2024
This antenna is not centered on 433mhz. It's actually pretty bad, but it's better than the garbage that comes with a lot of the Lilygo boards.SWR is 3.2 at 433mhz.
Debj
Comentado en los Estados Unidos el 22 de marzo de 2023
Extended range more than I expected!!!!!
Graeme M
Comentado en Australia el 1 de noviembre de 2022
Specs said tuned for 433 Mhz. At exactly 433 Mhz SWR is 2.6 to 1 on a MFJ antenna analyzer. Should be as advertised 1.1 to 1 at 433 Mhz but is not
B.J. Guillot
Comentado en los Estados Unidos el 7 de diciembre de 2019
I ordered two of these antennas and did tests using a Comet CAA-500 Mk2 antenna analyzer.SWR on the first one I tested was between 1.5-1.6 in the 433-435 MHZ range (not great, not terrible). I got a much better SWR of 1.1-1.2 (the lower the SWR and closer to 1.0, the better) at 423 MHz.On the second one tested, SWR was between 2.3-2.5 in the 433-435 MHz range (you wouldn't want to use it). The best SWR I could get on this one was around 1.5 all the way down at 407 MHz.I noticed that one antenna was physically a few millimeters longer than the other, which might explain the differences in the readings. I'd conclude there are some quality control issues that need to be addressed since the antennas both appear to be resonant on frequencies outside of their specifications (423 and 407 MHz instead of 433 MHz).Otherwise, the antennas visibility appear to be high quality and are aesthetically pleasing. I may order another two and see if I can get results closer to (or better than) the first one I tested.
Jennifer
Comentado en los Estados Unidos el 20 de octubre de 2019
One of the best in terms of gain.
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