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VHF (174-230MHz)

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The world’s television broadcasters transmit within the VHF band of 174-230 MHz and the UHF band of 470-862 MHz. In the VHF Band, our products and services support both high power transmitters as well as lower power gap fillers and transposers. Our expertise includes design support from prototype to production, offering specialized technical assistance from our local design engineers located around the globe.

Richardson RFPD can assist your VHF transmitter design team with:

  • High-Power VHF Amplifier/Transmitter Component Selection
    We help design engineers select the optimum active and passive components for VHF broadcast transmitters from an extensive inventory of high-power RF components.
  • Design Solutions
    Our global engineering team provides design solutions by assisting companies with component selection and offering higher levels of integration with pallets and full amplifiers.
  • Engineered RF Amplifier Solutions
    Richardson RFPD has enjoyed success in the RF power amplifier business for over 60 years. Today, we provide off-the-shelf VHF power amplifier solutions in addition to custom-engineered solutions designed per your specifications.
 

Richardson RFPD employs more RF engineers than any global distributor. By offering deep technical expertise to support the latest products from the leading suppliers in RF & Wireless and Energy Technologies, we are uniquely positioned to help customers meet the challenges of changing markets.

Also known as Band III, the VHF frequency range of 174-230 MHz is allocated to TV and Radio broadcasters in North American and Europe. The RF Amplifier provides the brute strength of the VHF Transmitter.  Richardson RFPD supports the critical components of the Amplifier; including: RF power transistors, RF Power Amplifier Linearizer IC’s, hybrid couplers, pallet amplifiers, GPS receiver modules (timing), RF terminations, RF coaxial connectors, and thermal management systems (including heat sinks, clamp compression systems, and liquid-cooled chill plates).

For more detailed information on this application, please refer to the technical articles and design considerations found in the Technical Resources tab, including:
Linearity vs. Efficiency in UHF (Digital) Broadcast Amplifiers
Adaptive Pre-Distortion Correction
Thermal Management for RF Amplifiers and Power Transistors

Links to Additional Information
The National Association of Broadcasters - trade association advancing interests in the federal and industry; improving quality and profitability; and encouraging content and technology innovation.

Digital Video Broadcasting (DVB) Project - international consortium committed to designing open interoperable standards for the global delivery of digital media and broadcast services.

DVB-H Mobile Broadcast Standard - official Mobile TV website of the DVB Project Office; includes specifications for DVB-H (for battery-powered handheld receivers), DVB-SH (for S-band over hybrid satellite/terrestrial networks) and DVB-IPDC (for IP Datacast).

Broadcast Engineering and Digital Television – publication for management, engineers and technicians at commercial and public TV stations, post-production and recording studios, broadcast networks, cable, telephone and satellite production centers and networks.

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