NX-300 - Receiver TOA - Free user manual and instructions
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| Product Type | Professional Wireless Receiver |
| Number of Channels | Dual Channel |
| Frequency Range | UHF 600-690 MHz (varies by region) |
| Frequency Stability | ±0.005% |
| Modulation Type | FM |
| Antenna Input | 2 x BNC (50 Ω) |
| Audio Outputs | XLR balanced, 1/4" unbalanced |
| Dimensions (W x H x D) | 210 x 44 x 180 mm (1U rack mount) |
| Weight | 1.2 kg |
| Power Supply | 12-18 V DC external adapter |
| Power Consumption | 5 W |
| Squelch Type | Adjustable pilot tone and noise squelch |
| Frequency Response | 40 Hz - 18 kHz |
| Dynamic Range | >110 dB (A-weighted) |
| Mounting | 19" rack-mountable (1U) with included brackets |
| Display | Backlit LCD with channel and frequency info |
| Controls | Power on/off, channel select, squelch adjust |
| Compatible Transmitters | TOA 300 series handheld and bodypack |
| Operating Temperature | -10°C to +50°C |
| Accessories Included | Power adapter, antennas, rack mount kit |
| Cleaning | Wipe with dry cloth; avoid liquids |
Frequently Asked Questions - NX-300 TOA
What frequency bands does the NX-300 support?
The NX-300 operates in the UHF range, typically between 600 and 690 MHz. Actual bands depend on regional regulations. For exact frequencies, refer to the label on the unit or the manual.
Can I use the NX-300 with other brand transmitters?
The NX-300 is designed to work specifically with TOA's 300 series transmitters. Using other brands may cause compatibility issues or poor performance.
How do I mount the NX-300 in a rack?
The unit is 1U high and includes rack mount brackets. Simply attach the brackets to the sides and secure with standard rack screws. Ensure proper ventilation.
What is the maximum operating range?
Under ideal conditions, the range is up to 100 meters (330 feet). Actual range depends on obstacles, interference, and antenna placement.
How do I adjust the squelch?
Use the squelch control on the front panel. Turn it clockwise to increase the threshold and reduce noise from weak signals. Adjust until background noise disappears without cutting off the desired signal.
Can I use multiple receivers together?
Yes, multiple NX-300 receivers can be used simultaneously. To avoid intermodulation, space frequencies at least 1 MHz apart and use a proper antenna distribution system.
What type of antennas are compatible?
The receiver uses BNC connectors with 50 Ω impedance. Standard 1/2 wave whip antennas or directional antennas (like LPDA) are suitable.
How do I troubleshoot audio dropouts?
Check antenna connections, move antennas away from metal objects, reduce distance to transmitter, and ensure both are on the same frequency. Also verify that the transmitter battery is fresh.
Is the NX-300 firmware upgradeable?
Firmware updates are not user-accessible. Contact TOA support if you suspect a firmware issue.
Where can I find the full user manual?
The full manual is available for free download at notice-facile.com. We recommend saving a copy for future reference.
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USER MANUAL NX-300 TOA
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Product information
Brand : TOA
Model : NX-300
Category : Receiver