IP64 Outdoor Amplifier / Signal Booster / Amplifier for Helium & Crankk hotspots - adjustable
Optimally tuned for the 868Mhz frequency range. The amplifier has an adjustable Tx gain, which is very important when operating several miners on one antenna, for example. Here 0db Tx is preset.
Depending on the set-up, Rx can also be adjusted via pins. A maximum of 16db and a minimum of 8db are possible. Measurement shows a 12db setting with a 19.3db attenuator (6.88 - 19.3 = 12.42db). If splitters are used, I recommend an RSSI signal modifier (converter) to protect against too strong a signal. This always happens when a splitter is in use. Can be recognized, for example, by RSSI values of -10dB or -15dB...
Also in the pictures is a field test with +9db setting.
The amplifier should be mounted directly to the antenna if possible. If you have a cavity filter, mount it directly on the filter.
Bias tee (power supply) is mounted between the hotspot and amplifier.
It is a complete system with amplifier, bias tee and voltage converter and cable and an SMA adapter.
It is the latest generation and one of the few amplifiers that can be adjusted depending on requirements (set-up).
Features: 868MHz signal amplifier
| Type: | Signal Booster / Amplifier for Outdoor |
| Network: | among other things Helium LongFi |
| Center Working Freq.: | 868MHz (863-870Mhz) |
| RX gain: | 8 -16db (adjustable) |
| Tx Gain: | 0 - 7db(adjustable) |
| Noise figure: | <1.5dB |
| Working Temperature: | -40 to +85℃ |
| Filter: | Built-in LNA SAW filter |
| Connector: | N-male / N-female |
| Rx/Tx switching time: | < 200ns |
Application is outdoor, amplifier including power supply and USB connection cable + adapter for bias tee if necessary