United Kingdom
Catalog   /   TVs & Video   /   TV Antennas

Comparison EMOS BEN 9023 vs Vivanco TVA 401

Add to comparison
EMOS BEN 9023
Vivanco TVA 401
EMOS BEN 9023Vivanco TVA 401
from $18.24
Outdated Product
from $43.00
Outdated Product
TOP sellers
Signal reception
Analogue TV
DVB-T/T2
Analogue TV
DVB-T/T2
Specs
Instalation typeindoorindoor
Amplification coefficient43 dB46 dB
VHF frequency range174 – 230 MHz174 – 230 MHz
UHF frequency range470 – 862 MHz470 – 862 MHz
Output impedance75 Ω
Amplifier
General
Size22.8x12.8x1.3 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.

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.
EMOS BEN 9023 often compared