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Aurora is a set of complex devices allowing to perform wireless encrypted audio radio transmission.
Microphone of high sensitivity receives sounds which are converted into digital form, compressed and transmitted to RAM; then they are transmitted in packets to the receiver. After correction and joining the packets, the signal is converted into analog form again. This procedure allows to keep high quality of sound without deformations and noises.
The transmitter sends the packets once a specific amount of time. It is performed quickly and the transmitter, being inactive for a major amount of of time, is very hard to detect.
The user may set the desired packet sending time within the range of 30-250ms and determine breaks between sending them, from 1,2 to 26 seconds.
To protect the transmission the sent signal is encrypted, which prevents it from being intercepted and decoded by unauthorized persons.
Digital encrypting prevents the sounds from being interfered so the user obtains a clear audio signal of a highest standard.
Both the transmitter and receiver have additional inputs which eases the set's usage.
Transmitter:
Receiver
| Specification of Set for wireless encrypted audio transmission - Aurora | |
|---|---|
| Bandwidth at sampling frequency |
|
| Dynamic range | 85 dB |
| Packet transmission duration (set by the remote control) | 30 – 250 ms |
| Break between packet's sending (set by the remote control) | 1.2 – 26 s |
| RMI 400 Audio transmitter | |
|---|---|
| Carrier wave (default settings) | 800 – 1200 MHz |
| Modulation | GMSK |
| Output power of the Set for wireless encrypted audio transmission - Aurora (@ 3.6 V) | 350 / 50 mW |
| Spectral bandwidth |
|
| Power supply voltage of the audio transmission set | 3.6 – 4.6 V |
| Current draw |
|
| Remote control signal sensitivity | 2 mV |
| Size | 137 x 30 x 10 mm |
| DPK 010 remote control | |
|---|---|
| Frequency | 434 MHz |
| Modulation | AT |
| Output power | 600 mW |
| Number of functions | 17 |
| Power supply of the Set for wireless encrypted audio transmission | 4x 1.5V AAA battery |
| Power supply voltage | 6 V |
| Size | 100 x 51 x 18 mm |
| PRI 400 Audio receiver | |
|---|---|
| Sensitivity | 10 mV |
| Power supply |
|
| Power supply voltage | 6 V |
| Current draw | 180 mA |
| Size | 170 x 70 x 35 mm |
| Inbox |
|---|
| Specification of Set for wireless encrypted audio transmission - Aurora | |
|---|---|
| Bandwidth at sampling frequency |
|
| Dynamic range | 85 dB |
| Packet transmission duration (set by the remote control) | 30 – 250 ms |
| Break between packet's sending (set by the remote control) | 1.2 – 26 s |
| RMI 400 Audio transmitter | |
|---|---|
| Carrier wave (default settings) | 800 – 1200 MHz |
| Modulation | GMSK |
| Output power of the Set for wireless encrypted audio transmission - Aurora (@ 3.6 V) | 350 / 50 mW |
| Spectral bandwidth |
|
| Power supply voltage of the audio transmission set | 3.6 – 4.6 V |
| Current draw |
|
| Remote control signal sensitivity | 2 mV |
| Size | 137 x 30 x 10 mm |
| DPK 010 remote control | |
|---|---|
| Frequency | 434 MHz |
| Modulation | AT |
| Output power | 600 mW |
| Number of functions | 17 |
| Power supply of the Set for wireless encrypted audio transmission | 4x 1.5V AAA battery |
| Power supply voltage | 6 V |
| Size | 100 x 51 x 18 mm |
| PRI 400 Audio receiver | |
|---|---|
| Sensitivity | 10 mV |
| Power supply |
|
| Power supply voltage | 6 V |
| Current draw | 180 mA |
| Size | 170 x 70 x 35 mm |
