RF Venue BPF470T608 – Band-Pass Filter, 470–608 MHz

Product Overview

The RF Venue BPF470T608 is a passive wide-band UHF band-pass filter covering 470–608 MHz — a 138 MHz pass band that encompasses most licensed UHF wireless microphone frequencies currently in use in North America. It attenuates out-of-band RF interference by 40 dB above and below the pass band, protecting wireless receivers from cellular, LTE, 5G, and other high-power RF sources operating outside the UHF wireless mic spectrum.

Product Description

When a facility operates wireless microphone systems from multiple manufacturers — or when a rental inventory spans several frequency bands — selecting a single narrow-band filter becomes impractical. The BPF470T608 solves this with a 138 MHz pass band that covers the full range of licensed UHF wireless microphone allocations currently coordinated in the United States, from the bottom of the UHF television band through the top of the currently licensed wireless mic spectrum at 608 MHz.

In environments where cellular LTE and 5G deployments create strong interference below 470 MHz or above 608 MHz, the BPF470T608 provides 40 dB of attenuation in both stop bands, substantially reducing receiver front-end overload without requiring the system operator to identify and match specific frequency bands. This makes it particularly well suited for rental and staging companies, multi-brand enterprise wireless systems, and permanent installations where frequency coordination may change over time.

Like all RF Venue BPF series filters, the BPF470T608 is entirely passive, connects inline via BNC connectors, and requires no power. Maximum insertion loss is 3.5 dB, which is typically offset by the gain of an antenna distribution system. The filter is not compatible with active antennas or IEM transmit paths.

Key Features

• 470–608 MHz Pass Band — 138 MHz bandwidth covers most licensed UHF wireless mic frequencies currently coordinated in North America across multiple brands and band plans.
• 40 dB Side Rejection — Attenuates signals below 412 MHz and above 668 MHz by 40 dB, blocking cellular, LTE, 5G, and public safety RF outside the wireless mic spectrum.
• Maximum 3.5 dB Insertion Loss — Minimal in-band signal degradation; suitable for use ahead of active antenna distributors that provide compensating gain.
• Passive Operation — No power required; installs inline on standard BNC antenna feeds with no configuration.
• 1.5 dB Maximum In-Band Ripple — Flat pass-band response across the full 138 MHz bandwidth for consistent performance across all coordinated channels.
• VSWR ≤ 1.5 — Low impedance mismatch across the pass band for clean signal transfer in 50-ohm antenna systems.
• 2W Maximum Power Handling — Appropriate for receive antenna applications in standard wireless microphone systems.
• BNC Connectors — Compatible with standard wireless microphone antenna distribution infrastructure.
• Compact Form Factor — Installs at the antenna output or at the input of an antenna distribution system.

Typical Applications

• Rental and staging companies operating mixed-brand wireless microphone inventories across the full licensed UHF spectrum, where a single filter must accommodate multiple frequency bands.
• Houses of worship and corporate AV installations with wireless microphone systems from multiple manufacturers operating in different UHF bands, where per-band filtering is impractical.
• Enterprise and higher education facilities with legacy wireless microphone systems spanning the full 470–608 MHz range that require front-end protection from adjacent cellular infrastructure.
• Broadcast and production facilities coordinating large wireless microphone channel counts across multiple UHF frequency blocks where a broadband filter simplifies system design.
• Permanent installations where future frequency recoordination may shift wireless mic assignments within the UHF band, and the filter should remain compatible without replacement.

Technical Specifications

Frequently Asked Questions

Why would I choose the BPF470T608 over a narrower band-pass filter?

The BPF470T608 is the right choice when your wireless microphone system spans multiple frequency bands or brands, or when you cannot confirm a single narrow band assignment for the entire system. Its 138 MHz pass band accommodates the full range of currently licensed UHF wireless mic frequencies in North America in a single filter, eliminating the need to match each antenna feed to a specific product variant.

Will the filter pass all channels in my multi-band wireless system?

Yes, provided all channels fall within 470–608 MHz. Verify that every wireless microphone and IEM receive frequency in the system is within this range before installing. Channels outside the pass band will be attenuated and may become unusable.

Does the wide pass band reduce the effectiveness of interference rejection compared to a narrower filter?

At the stop-band boundaries, yes — the 20 dB transition zone spans 412–426 MHz and 655–668 MHz. However, the 40 dB rejection regions below 412 MHz and above 668 MHz still provide substantial attenuation of cellular and other strong out-of-band signals. For systems requiring tighter rejection of signals in the 412–468 MHz or 609–668 MHz range, a narrower filter may be more appropriate.

Can I use this filter with an active antenna distributor?

Yes. Install the BPF470T608 at the antenna output or at the input of the active antenna distributor. The distributor's amplifier gain will typically offset the filter's 3.5 dB maximum insertion loss. Do not place the filter between an active (DC-powered) antenna and the distributor if the antenna draws power from the coaxial feed.

Is the BPF470T608 suitable for use in Canada or other markets outside the US?

The 470–608 MHz range reflects the current licensed wireless microphone allocation in the United States. Other markets may have different UHF wireless mic allocations. Verify the licensed frequency range for wireless microphone use in your specific jurisdiction before selecting this or any BPF series filter.