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Comparison EMOS BEN 9023 vs Kvant-Efir ARU-01

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EMOS BEN 9023
Kvant-Efir ARU-01
EMOS BEN 9023Kvant-Efir ARU-01
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from $11.96 up to $13.00
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Signal reception
Analogue TV
DVB-T/T2
Analogue TV
DVB-T/T2
Specs
Instalation typeindoorindoor
Amplification coefficient43 dB18 dB
VHF frequency range174 – 230 MHz
UHF frequency range470 – 862 MHz470 – 862 MHz
Output impedance75 Ω
Amplifier
General
Cable length2.5 m
Size22.8x12.8x1.3 cm21.5х20.5х7 cm
Added to E-Catalogdecember 2015december 2015

Amplification coefficient

The amount of received signal amplification provided by the antenna. The higher this indicator, the more confidently the antenna will work in conditions of poor reception, the lower the signal level at which it will be ineffective. At the same time, it is worth considering that a high amplification coefficient is not a guarantee of high quality. Firstly, unscrupulous manufacturers and sellers may indicate figures in the specifications that do not correspond to real indicators. Secondly, the antenna amplifies not only the useful signal, but also various interferences, and in some cases a low amplification coefficient is preferable (for example, in dense multi-storey buildings, when the signal reaches the antenna from different directions and with different delays). And thirdly, performance above 40 dB can only be achieved using amplifiers (see below) — and amplifiers are also a source of noise, which in some situations can be quite noticeable.

VHF frequency range

The frequencies in the VHF range for which the antenna is designed. VHF includes frequencies from 30 to 300 MHz antennas with full coverage of this range are quite rare, but this is not required, because TV broadcast frequencies occupy only a part of VHF, and this part usually overlaps quite well.

Antenna sellers generally choose to sell models that are compatible with local frequencies. Therefore, in general, the frequency range is a rather specific parameter that the average user rarely needs — except when buying an antenna in another country. Also note that FM broadcasting in Europe and America uses the 87.5 – 108 MHz range, and antennas for such broadcasting (see "Signal Reception"), by definition, must cover these frequencies.

Output impedance

The internal resistance of the antenna to alternating current. The standard value for modern TV antennas is 75 ohms; it is this impedance that the connecting cable used to connect the antenna to the receiver should have — otherwise there can be no question of normal use.

Cable length

The length of the connecting cable supplied with the antenna (often non-detachable). Quite a lot of models come with a cable right away, which eliminates the need to purchase it separately. And knowing the length of the cable, you can evaluate whether it is enough to reach the TV without additional cables.
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