Avtex STH4000 active directional DVB-T/T2 antenna, 20 dB, LTE filter, 12/24 V, suction cup, mast or wall mount
- The Avtex STH4000 is an active directional DVB-T/T2 antenna with a 20 dB amplifier and LTE filter. It runs from the TV antenna supply or 12/24 V DC. A power adapter, suction cup and bracket are included.
Avtex STH4000 active directional DVB-T/T2 antenna
Avtex STH4000 is a compact, lightweight active directional DVB-T/T2 antenna with a 20 dB amplifier and LTE filter. Flexible mounting allows quick installation inside or outside a vehicle.

Key features
- 20 dB gain
- Directional antenna with built-in low-noise amplifier
- LTE
- Power from TV antenna output or 12/24 V DC
- Suction cup, no drilling
- Mast or wall bracket included
- UV and water resistant housing
Power supply

The amplifier can use the antenna power function found on most receivers and all Avtex digital TVs. Alternatively, use the included 12/24 V DC power adapter.
Technical specifications
| Specification | Value |
|---|---|
| Manufacturer | Avtex |
| Model | STH4000 |
| Type | active directional DVB-T/T2 antenna |
| Gain | 20 dB |
| Amplifier | built-in, low noise |
| Filter | LTE |
| Power supply | from the TV's antenna power output or 12/24 V DC (adapter included) |
| Mounting | suction cup, mast or wall bracket |
| Housing | UV and water resistant |
| Weight | 0.29 kg |
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Frequently asked questions
Does installation require drilling?
No. A suction cup is provided, along with a mast or wall bracket.
How is the amplifier powered?
The amplifier can use the antenna power function found on most receivers and all Avtex digital TVs. Alternatively, use the included 12/24 V DC power adapter.
What does the LTE filter do?
It reduces interference from LTE mobile networks during terrestrial TV reception.
Manufacturer: Avtex Ltd, Calon Point, No.1 Fountain Lane, St Mellons, Cardiff CF3 0FE, United Kingdom.








