N-BP1 Bodypack Transmitter

MICROLOCK

N-Series uniquely designed bodypack transmitters are lightweight and formed to match the contours of the human body for comfortable long-term use.

• Wide frequency range: from 470 MHz to 870 MHz
• Contoured shape that fits the body comfortably
• 8+ hours of operation with standard AA batteries
• DPA Rechargeable Battery Pack (optional)
• Easy battery loading
• High dynamic range

To get the highest possible dynamic range the N-Series uses stacked converter technology and optimized circuitry around the input stage and A/D conversion. This is how the system offers the best audio performance.

Having a higher dynamic range means that you do not have to dial in a gain or amplification on the transmitter. Therefore, there is no need to set the gain on the transmitter. In addition, as the system is digital, optimum RF signal is obtained without having to secure maximum modulation. The original signal is preserved throughout the system.

It is possible to adjust the level coming out of the receiver per channel, but this is done in the digital domain, i.e., it is an offset of the incoming signal and thus referred to as digital TRIM.

Audio levels and headroom

The bodypack transmitters have plenty of headroom, so there is no need to adjust input gain or the like. For this reason, you cannot adjust the audio levels on the transmitters.
It is, however, possible to change the level via an offset of the signal to balance sources with each other, but this is all done in the digital domain and thus referred to as digital TRIM via a knob on the receiver.

The analog outputs (if installed) allow users to adjust the analog reference to suit the system that the signal is being fed into. This is all done via the Receiver Menu.

Frequency coverage

• A (Region, EU) 470 - 870 MHz
• B (Region, US) 470 - 608, 614 - 616, 653 - 663 MHz
• C (Region, Japan)
• D (Region, China) 470 - 787 MHz

Transmission power

Bodypacks can broadcast with a range of effects:

1 mW, 5 mW, 10 mW, 20 mW, 50 mW

*SPECIFICATIONS*

• Frequency response: 20 - 20 kHz (+/-1 dB)
• RF Frequency Range: 470 - 870 MHz (Varies by region)
• RF Tuning Steps: 25 kHz
• Battery Runtime at 10 mW: >8 hours
• Audio Input Impedance: MicroLock, N-BP1-90 - 5 k?
• LEMO 3-pin, N-BP1-03 - 5 k?
• RF Sensitivity: -96 dBm at 10^-5 BER
• Audio Polarity: Positively increasing sound pressure produces positive going voltage on relevant audio outputs
• Radio Frequency Power: 1 mW, 5 mW, 10 mW, 20 mW, 50 mW (follows region)
• Working Range: 100 m (330 ft) Range depends on the RF enviroment, i.e. absorption, reflection and interference
• Audio Dynamic Range (system): analog126 dB
• Audio Dynamic Range (system): Digital126 dB
• Audio Frequency Response: 20 - 20 kHz (+/-1 dB)
• Audio Bias Voltage: 5 Volts DC
• Latency: <2.9 ms
• Radio Frequency Bandwidth: 470 - 870 MHz (follows region)
• Max Input Level: < 1% THD @ 1 kHz1,8 Vrms
• Housing Type: Zink alloy
• Operating Temperature: -10degC to 50degC (14degF to 122degF)
• Storage Temperature: -20degC to 50degC (4degF to 122degF) Without batteries installed
• Digital Audio Trim: -20 dB to +40 dB on the receiver side, selectable in increments of 1 dB
• Audio Input Connector: MicroLock, N-BP1-90 - 2-wire input
• LEMO 3-pin, N-BP1-03 - 2 and 3-wire input
• Antenna Connector Type: SMA
• Antenna Type: 1/4 wave
• Occupied Bandwidth: < 200 kHz
• Battery Type: LR6 AA batteries
• Dimension (H x W x D): 87 mm (3.4 in) x 53 mm (2.1 in) x 24 mm (0,9 in)
• Weight: 153 g (5.4 oz)