Despite the power of modern repeaters, in some remote parts of the region, one way or another, problems arise with receiving digital television. And even remote antennas are not always able to receive a weak signal.
On the radio electronics market you can find inexpensive antenna amplifiers, using which you can quickly assemble an analogue of a purchased active antenna, only several times cheaper.
Will need
- Amplifier for external antenna SWA-500 (700) (the most sensitive SWA-9000 or SWA-9999) - http://alii.pub/656e84
- Antenna amplifier power supply (power injector) - http://alii.pub/656ery
- Wire or tube. Copper or aluminum, diameter 3-5 mm, length 650-700 mm.
- Coaxial cable.
- Screws, nuts, washers.
Manufacturing an active indoor antenna for digital TV
The wire (tube) must be cut evenly to a size of 600 mm. Then bend it into a ring - a vibrator. Next, flatten the ends and drill holes with a diameter of 3 mm in them.
Strip the coaxial cable of the required length on both sides.If your TV or set-top box does not have power for the antenna, then you need to use an adapter and connect the cable to it first.
If there is a power function, instead of an injector with an adapter, connect the cable directly to the antenna connector.
And then the other end to the antenna amplifier. You also need to screw the vibrator to the board using hardware.
The antenna with amplifier is ready for connection.
Connection and setup
If you have made the option with a block, then you can immediately move on to searching for channels. Select the DTV-T2 band (terrestrial TV channels) and perform a search. If you have the option without a block, then before searching you need to turn on the antenna power in the settings.
Everything works great. The antenna shows stability and high sensitivity even indoors.
