Bosch TR-80N-HE UHF Dual-Channel Beltpack Transmitter
Overview
The Bosch TR-80N-HE is a UHF beltpack transmitter designed for professional wireless audio applications where reliable RF performance across a wide frequency range is non-negotiable. Operating across the 482–698 MHz UHF band with selectable transmit power from 100 mW down to 5 mW, this unit gives installers and audio engineers precise control over RF output — critical in multi-transmitter deployments where interference management is as important as range. The TR-80N-HE pairs with a 4-meter headset and delivers two-channel capability, making it a practical fit for broadcast, live event production, house-of-worship installations, and enterprise conferencing environments where talent mobility matters.
Power flexibility is built in from the start: the TR-80N-HE accepts 100–240 VAC at 50–60 Hz or 12–15 Volts DC, so you can run it from standard mains power in a fixed installation or feed it from a DC bus on a mobile rack without swapping hardware. That dual-voltage range is particularly useful in touring or rental contexts where local power standards vary.
Key Features
- Wide UHF Frequency Range (482–698 MHz): A 216 MHz tuning window gives you room to find clean spectrum in dense RF environments — stadiums, convention centers, and multi-zone corporate campuses where dozens of wireless systems compete for bandwidth. Frequency agility at this scale means you're not locked out when adjacent channels are occupied.
- Selectable Transmit Power (100 mW – 5 mW): Dialing power down to 5 mW in close-range or studio setups reduces interference to neighboring channels and extends battery runtime. Stepping up to 100 mW when coverage distance demands it keeps signal integrity intact without needing a separate high-power unit — one device covers both scenarios.
- Dual-Channel (2CH) Operation: Two independent audio channels on a single beltpack reduces the hardware count per performer or presenter. In broadcast or staged environments, that means fewer beltpacks to manage, charge, and track across a shift.
- Universal AC Input (100–240 VAC, 50–60 Hz): No voltage converters needed for international deployments. Whether the rack is in a North American convention hall or a European broadcast facility, the TR-80N-HE powers on from local mains without modification.
- DC Power Option (12–15V DC): Integrates cleanly into DC-powered mobile rigs, OB vans, or battery-backed systems. Combined with the AC input, this transmitter covers virtually any power topology you're likely to encounter in the field.
- Wide Operating Temperature (-20°C to 55°C): Rated to handle both cold outdoor staging environments and the thermal load of enclosed rack spaces. At 55°C upper limit, this unit won't throttle or fault in warm equipment rooms or under stage lighting — a meaningful margin over the typical 40°C commercial-grade spec.
- Rackmount Form Factor: Integrates into standard rack infrastructure alongside receivers, amplifiers, and signal processors. Rack-mounting eliminates the cable management overhead of desktop units and keeps the RF chain organized in permanent installations.
Integration & Compatibility
The TR-80N-HE (often searched as TR 80N HE) is designed to operate within the Bosch professional wireless audio ecosystem. The 482–698 MHz UHF band aligns with widely supported receiver infrastructure, and the selectable power output allows co-deployment with multiple transmitters on the same frequency plan without requiring dedicated RF coordination hardware in smaller systems. The included 4-meter headset is matched for use with this beltpack's output characteristics. For larger multi-zone deployments, consult the Bosch Bosch wireless audio product line for compatible receivers and antenna distribution systems. Engineers building out wireless microphone systems should account for the full 482–698 MHz spectrum plan early — frequency coordination becomes the limiting factor before hardware does in dense installations. If your deployment also involves conference and intercom systems, Bosch's broader audio portfolio integrates at the system level. For rack-based AV infrastructure, review your rack accessories options to ensure proper ventilation alongside other heat-generating components. Those specifying power for mobile or touring applications should also plan around a DC power supply that can cleanly deliver within the 12–15V DC input window.
Frequently Asked Questions
Q: What frequency range does the TR-80N-HE cover?
A: The TR-80N-HE operates across the 482–698 MHz UHF band, providing a 216 MHz tuning window for frequency coordination in RF-congested environments.
Q: Can the TR-80N-HE run on DC power for mobile applications?
A: Yes. In addition to universal AC input (100–240 VAC, 50–60 Hz), the TR-80N-HE accepts 12–15 Volts DC, making it compatible with mobile racks, OB vans, and battery-backed systems.
Q: What is the maximum transmit power of the TR-80N-HE?
A: Maximum transmit power is 100 mW, with a minimum setting of 5 mW. Selectable output allows you to balance range against interference and battery consumption depending on the deployment context.
Q: How many audio channels does the TR-80N-HE support?
A: The TR-80N-HE is a dual-channel (2CH) beltpack, supporting two independent audio channels in a single unit.
Q: What are the operating temperature limits for the TR-80N-HE?
A: The TR-80N-HE is rated for -20°C to 55°C, suitable for cold outdoor staging environments and warm enclosed rack spaces alike.
Q: Does the TR-80N-HE include a headset?
A: Based on the product designation, the TR-80N-HE is configured with a 4-meter headset. Verify current package contents with your order documentation.
The TR-80N-HE's selectable transmit power — ranging from 100 mW at full output down to 5 mW — is the spec I'd focus on first when evaluating this unit for any multi-transmitter deployment. That 20:1 power ratio gives your RF coordinator real tools for managing channel isolation without hardware changes, which matters considerably when you're stacking eight or more active beltpacks in the same venue.
Technical Highlights:
- 482–698 MHz UHF Band: A 216 MHz tuning window is a meaningful advantage over narrower-band units — in practice, it's often the difference between finding a clean frequency plan in a congested arena and sending someone out to rent additional coordination gear.
- Dual AC/DC Power Input: 100–240 VAC plus 12–15V DC on a single unit eliminates the need for voltage-specific inventory. Touring engineers in particular benefit from not managing separate SKUs for domestic and international configurations.
- -20°C to 55°C Operating Range: The 55°C upper limit is a real differentiator for enclosed rack installations under stage lighting or in warm AV equipment rooms — many comparable units are rated to 40°C, which can become a reliability concern in summer outdoor events.
Deployment Considerations:
- At 100 mW output, verify local regulatory compliance for the 482–698 MHz band in your jurisdiction — portions of this range carry varying licensed and unlicensed designations depending on country, and output power limits may apply below 100 mW in some regions.
- The dual-channel design reduces per-performer hardware, but frequency planning still needs to account for intermodulation products from each active channel — factor this into your RF coordination workflow before deploying more than four units simultaneously.
For permanent install scenarios — specifically fixed house-of-worship or corporate AV rooms where the rack lives in a warm utility closet and the wireless system runs multiple daily sessions — the TR-80N-HE's thermal ceiling and dual-input power make a practical case over single-voltage, narrower-temp competitors in the same category.
