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BLX -- Wireless System
IMPORTANT SAFETY INSTRUCTIONS
1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accor­
dance with the manufacturer's instructions.
8. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other appara­
tus (including amplifiers) that produce heat. Do not place any open flame sources on the product.
9. DO NOT defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
11. ONLY USE attachments/accessories specified by the manufacturer.
12. USE only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. UNPLUG this apparatus during lightning storms or when unused for long periods of time.
14. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been dam­
aged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.
15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vas­
es, on the apparatus.
16. The MAINS plug or an appliance coupler shall remain readily operable.
17. The airborne noise of the Apparatus does not exceed 70dB (A).
18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing
connection.
19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
20. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
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Summarization of Contents

IMPORTANT SAFETY INSTRUCTIONS
General Safety Precautions
Instructions on safe usage, including water proximity, ventilation, heat sources, plugs, and power cords.
Electrical and Operational Safety
Guidance on unplugging during storms, servicing, liquid exposure, and avoiding product modifications.
Features
Front Panel Overview
Description of controls, displays, and indicators on the BLX4 and BLX88 receiver front panels.
Back Panel Connections
Details the output jacks and power connections on the BLX4 and BLX88 receiver back panels.
BLX1 Transmitter Features
Overview of the BLX1 bodypack transmitter's LED indicator, power switch, input, antenna, and group button.
BLX1 Transmitter Details
Further details on BLX1 features including LED display, channel button, battery compartment, and gain adjustment.
BLX2 Transmitter Features
Overview of the BLX2 handheld transmitter's LED indicator, power, group/channel buttons, display, and identification cap.
Transmitter LED Indicators
Explanation of LED status lights on the transmitter and their corresponding meanings.
Single System Set Up
Setting Transmitter Group and Channel
Manual procedure for matching transmitter group and channel settings to the receiver.
Getting Good Sound
Correct Microphone Placement
Instructions on how to position microphones for clear sound capture and avoid handling noise.
Wearing the Headworn Microphone
Guidance on correctly positioning headworn microphones for optimal performance and comfort.
Troubleshooting
Audio Issues Troubleshooting
Solutions for audio interference, dropouts, distortion, and gain adjustment for sound levels.
Power and Connectivity Troubleshooting
Solutions for units that won't power off and ensuring correct connections.
Specifications
BLX1 Specifications
Detailed technical specifications for the BLX1 bodypack transmitter, including input levels and dimensions.
BLX2 Specifications
Detailed technical specifications for the BLX2 handheld transmitter, including audio input and battery life.
BLX4 & BLX88 Output Impedance
Specifications for the output impedance of XLR and 1/4" connectors on BLX4 and BLX88 receivers.
BLX4 & BLX88 Audio Output Level
Specifications for the audio output levels of BLX4 and BLX88 receivers via XLR and 1/4" connectors.
BLX4 & BLX88 Dimensions and Weight
Physical dimensions and weight specifications for the BLX4 and BLX88 receivers.
Important Product Information
Licensing Information
Guidance on obtaining necessary licenses for operating wireless microphone equipment.
Information to the User
FCC compliance information and advice on mitigating radio or television interference.
Frequency Range and Transmitter Output Level
Frequency Bands H62 to T11
Details operating frequency ranges and output power for specific transmitter bands (H62, J10, K3E, etc.).
Frequencies for European Countries
European Frequencies for H8E Band
Country-specific frequency ranges for the H8E band in Europe.
European Frequencies for K3E Band
Country-specific frequency ranges for the K3E band in Europe.
European Frequencies for K14 Band
Country-specific frequency ranges for the K14 band in Europe.
European Frequencies for Q25 Band
Country-specific frequency ranges for the Q25 band in Europe.
European Frequencies for Q25 Band (cont.)
Further country-specific frequency ranges for the Q25 band in Europe.
European Frequencies for R12 Band
Country-specific frequency ranges for the R12 band in Europe.
European Frequencies for S8 Band
Country-specific frequency ranges for the S8 band in Europe.
European Frequencies for T11 Band
Country-specific frequency ranges for the T11 band in Europe, including license-free options.

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