Electricity + Control June 2018

round up

CABLES + ACCESSORIES

300 kHz to 200 MHz antenna and cable analyser Bird Technologies, a leading provider of RF components, subsystems, test equipment and services represented locally by COMTEST Solutions offers the SiteHawk SK-200-TC, a hand- held antenna and cable analyser that operates between 300 kHz and 200 MHz. The instru- ment simplifies detection of problems in coaxial transmission lines and antenna systems, and pinpoints their source using distance-to-fault measurements. The SiteHawk SK-200-TC provides all of the measurement capabilities required to evaluate the performance of a communication system’s transmission path, and has the same features as its higher-frequency counterpart, Bird’s SiteHawk SK-4000-TC, which operates over a fre- quency range of 85 MHz to 4000 MHz. The SiteHawk SK-200-TC is a rugged, compact instru- ment, measuring only 18.2 x 9.6 x 4.8 cm and weighing 900 g. It has an intuitive user interface displayed on its high-resolution TFT LCD colour display that is readable in bright sunlight, and has 16 Gb of internal flash memory for storing thousands of traces and measurement setups. The distance-to-fault measurement indicates VSWR or return loss at various points from the beginning of the transmission line all the way to the antenna and identifies the location of a problem with high resolution. The cable loss function measures insertion loss of the trans- mission line over a given frequency range.

The instrument makes fast swept measure- ments at up to 0.25 ms per data point of return loss and cable loss as well as VSWR and distance to fault and allows users to set trace capture using 51, 101, 201, 401, 801, 1601 or 3201 data points per sweep. Both X and Y scales as well as meas- urement units can be changed by the user as can a pass-fail limit with visual indicator for quick ‘go/no- go’ indications. There are six user-selectable mark- ers for direct or difference measurements that can be referenced to the limit line or a recalled trace. A measurement-hold feature also allows a trace to be stored temporarily for analysis. Enquiries: Email online@comtest.co.za

New generation coaxial cable for uv-cured lining systems with its drum reeling New Generation Coaxial Cable 4 HRADIL Spezialkabel GmbH in Bi- etigheim, Germany presents the first robot cable for UV-cured lining systems with two coaxial cables. This has the advantage that two camera systems can now be installed on UV-curing trains, each of which can perform different tasks as front or reverse cameras, for example. While one camera monitors the curing process the other one inspects the results and logs them. Overall, contractors specialising in sewer rehabilitation and civil engineering compa- nies benefit from a significantly faster execution of work. HRADIL’s New Generation Coaxial

Cable permits the use of two sep- arate power supplies with 300 and 24 volts. The highly abrasion-resist- ant 44-wire cable was designed to withstand the extreme mechanical and chemical stress of sewer work. The HRADIL cable can take tensile stresses exceeding 5 000 N in a temperature range from -50°C to +90°C without batting an eyelid. The 'New Generation Coaxial Cable 4.0' can be delivered at short notice. Enquiries: Visit www.hradil.de

Electricity + Control

JUNE 2018

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