Difference between Passive and Active Antenna

Question

Hello,

I live in Lorraine. In quite a sleepy town. I’m in an apartment that doesn’t have an antenna but a rooftop aerial. I’ve tried several solutions, buying a passive antenna, then an active one, for 50 euros, 30 euros, and 20 euros, but the result is the same: I can't pick up anything... And I think my TV has a TNT decoder.

While waiting for the Free box, what is the actual difference between a passive and an active antenna...?

Configuration: iPhone / Safari 600.1.4

Gil · Accepted Answer

A TNT antenna, active or electronic, is a UHF antenna with a preamplifier 21/60 or followed by a preamplifier that requires a power supply voltage between 5 and 24 V depending on the model, often with an anti-jamming system for LTE 4G. If the TNT does not work, refer to the solution "Fransat" (= satellite forum).

tribun · Answer

Hello.
The passive antenna is not connected to the power supply, does not have a gain adjustment potentiometer, and does not receive any current from the adapter (some adapters can provide 5V via the RF socket).

A passive antenna is generally cheaper because it lacks electronics or has basic electronics.
A simple piece of wire, for example, dangling from the back of the adapter can be considered a passive antenna. (Placing it horizontally is usually better.)

Passive antennas are used when one is not too far from the transmitter and the need for an active (amplifiable) antenna is not necessary.

The active antenna amplifies the useful signal on the UHF frequency bands intended by the manufacturer.
But beware, if one is poorly positioned or too far from the transmitter, one risks amplifying more noise than useful signal.
Each model has its limits.

--
Who loves education! finds the knowledge that comes from reflection!
PS. Frequently create a restore point! It solves quite a few problems.

Difference between Passive and Active Antenna

2 answers

Problem with my sound!

Wireless printer setup

Texture issues in enshrouded

User manual and instructions

2 bugs to fix

I want to download a game on my pc.

What is this connector?

Too many ads during the games

Why when i click on a cell in excel it's the cell?

Paint ne peut pas sauvegarder ce fichier. la sauvegarde a été interrompue, donc votre fichier