ASIA-PACIFIC BROADCASTING

SPX Communication Technology (formerly Dielectric) recently introduced its Dielectric DLP-V and TLP-BB series of low-power antennas designed specifically to provide broadcasters with economical choices for low-power TV applications. These include distributed transmission systems (DTS), gap fillers, mobile media broadcasting and translators.

A cost-effective supplement to the TLP series of antennas, the low-power, single-channel slotted DLP-V series features 30% vertical polarisation to increase signal penetration for gap-filling scenarios and a more reliable signal. Offering an eight-bay, single-module design, the antenna provides 1.7kW input power and beam tilt of 1.5°.

The TLP-BB broadband antenna can be used to multiplex numerous low-power stations due to its broadband width of 60MHz (up to 10 channels wide) with a VSWR of less than 1.15. The antenna offers a 12-bay, double-module design with two six-bay slotted antenna sections fed with a common power divider, cables and line hangers for multiple-channel operations. The TLP-BB offers 7kW power input and beam tilt of 2°.

“As broadcasters continue to feel the economic pinch, we are very excited to introduce the cost-effective and reliable ­DLP-V and TLP-BB antennas for a wide range of low-power applications,” said Roger Cote, SPX’s vice-president and general manager.

“The DLP-V provides an economical option for customers who are looking to increase signal penetration in low-power applications that may get bumped in channel. The TLP-BB’s high bandwidth for multiple-channel operations makes it an ideal alternative for slot-style designs with limited bandwidth, and its lower wind-load makes it the perfect replacement for broadband panels,” Cote added.

Offering either horizontal or elliptical polarisation, the non-pressurised DLP-V and pressurised TLP-BB are stand-alone products that feature simple mechanical designs for ease of installation. The antenna structures can withstand wind speeds of 125mph, and they feature low-profile slot covers for environmental protection.

Standard mounting hardware is provided in pipe sizes of 1.25-4.5 inches and angle leg size of 1.5-3 inches. The DLP-V offers a single standard 0.875-inch EIA input, and the TLP-BB features a standard 3.125-inch EIA input. The ­DLP-V is available with standard directional Azimuth pattern options, while the TLP-BB is available in B or M Azimuth patterns.

 

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