Which of the following RF connector types is most suitable for frequencies above 400 MHz?
UHF (PL-259/SO-239)
Incorrect. The UHF (PL-259/SO-239) connector is generally not suitable for frequencies above 400 MHz because it exhibits higher loss and impedance inconsistencies at these higher frequencies.
Type N
Correct. The Type N connector is specifically designed for high-frequency applications, making it most suitable for frequencies above 400 MHz with low loss and stable impedance.
RS-213
Incorrect. RS-213 is not a type of connector; rather, it is a type of coaxial cable, making this answer incorrect in the context of the question.
DB-25
Incorrect. DB-25 is a type of data connector used for parallel and serial connections, and is not suitable for RF applications, especially not for frequencies above 400 MHz.
Explanation
When dealing with frequencies above 400 MHz, the type of RF connector used becomes critically important due to the potential for significant signal loss and interference. This is particularly relevant in amateur radio as higher frequencies are commonly used in various applications such as satellite communications and UHF/VHF band operations. The Type N connector is the most suitable choice for these higher frequencies. The Type N connector is designed to handle frequencies well into the GHz range, maintaining a low loss and a stable impedance, typically 50 ohms. This makes it ideal for ensuring that the signal integrity is preserved, even at higher frequencies. Other connectors, such as the UHF (PL-259/SO-239) connectors, were not designed with high-frequency applications in mind and tend to exhibit higher loss and impedance inconsistencies at frequencies above 400 MHz.
T9B06 2022-2026