Manual

40
3.6.2. Beacon Mini-RX
The Beacon Mini-RX can be used in both the Non-Inverse
Architecture (NIA) and in the Inverse Architecture (IA): NIA and
IA comparison
The Mini-RX beacon HW differs from the regular Beacon HW
v4.9 in several ways:
- It is an RX-only beacon, i.e. it can receive, but it cannot
transmit ultrasonic signal
- The fact that it is RX-only makes it far more sensitive, i.e. you will get a longer range
between Beacon HW 4.9 and Mini-RX than between Beacon HW 4.9 and Beacon
HW 4.9.
- Mini-RX beacon can receive any ultrasonic frequency from the bands: 19kHz,
22kHz, 25kHz, 28kHz, 31kHz, 34kHz, 37kHz, 45kHz. The filter can be simply
selected in the Dashboard. At the same time, the working ultrasonic frequency of
Beacon HW v4.9 is HW-defined by ultrasonic sensors and can’t be changed
- Mini-RX beacon can receive several ultrasonic frequencies at once. That is used in
Inverse Architecture. See the comparison: NIA and IA comparison
- The Mini-RX Beacon is significantly smaller than Super-Beacon
- Can play a role of stationary beacon when imputing coordinates manually (in NIA)
- Can play a role of mobile beacon (in IA system)
- Has digital microphone, which is more sensitive than regular sensors
- Supports 868/915MHz radio only
- Light weighted
- Can be water-protected
- The component of the Marvelmind Helmet and Marvelmind Watch
- It has 360° reception angle (horizontally) and 180° reception angle (vertically)
Reception diagram. Digital microphone has about 360° (horizontally) and 180°
(vertically) reception angle
Mini-RX beacon may be over discharged. In that case do the following:
Turn off the beacon with DIP switches and charge it for 1 hour. Then turn the
beacon on, flash the latest SW via DFU Programming and charge it for 1 hour
again