Radio receiver uses patented technology to increase signal integrity in wireless systems.

August '99 News & Events

Mitel Semiconductor has available a single-chip amplitude shift key (ASK) receiver designed to bring high performance to low-power applications. Dubbed the KESRX04, the receiver employs patented anti-jam detection circuitry that enhances signal integrity in reception areas with high levels of interference. The company says the KESRX04 can provide an affordable solution while extending product life cycle in applications such as automotive keyless entry, garage door opening, remote control, radio frequency (RF) tagging and local paging systems.

Mobile radio communication equipment is proliferating rapidly worldwide which will lead to a significant increase in sustained interference caused by products such as wireless stereo headphones and radio repeater stations. Conventional ASK low-power radio receivers do not provide protection against this kind of interference says Mitel Semiconductor and it claims the KESRX04 is the only low-power radio receiver on the market that has the capability of offering significant interference immunity.

The patented anti-jam detection circuitry enables the receiver to reject in-band interfering signals that are more than 14 dB stronger than the required signal. Using DC restoration on the signal, the anti-jam circuitry amplifies the signal to recover data that is lost through interference. By employing this technology, the KESRX04 can enhance data integrity without the cost penalties of increased intermediate frequency (IF) selectivity and frequency accuracy. In addition, the anti-jam detection circuit can extend the product life cycle of the receiver by adapting the receiver to its changing environment.

"The wireless markets are exploding and we are committed to providing our customers with the technology required to be among the first to market with high-performance products," said Dale Wilson, Mobile Wireless Business Unit Marketing Manager at Mitel Semiconductor. "The KESRX04 is the most recent in a line of RF receivers that support this goal as we progress on our roadmap to be a top-tier provider of wireless components."

High integration solution

The KESRX04 also offers high-integration and performance and meets the requirements of FCC Part 15 and ETS 300-220. For power-conscious, handheld applications, KESRX04 provides improved flexibility on a lower 3 V supply for use with lithium battery coin cells. It is designed to operate over a voltage range of 3 to 6 V and over a temperature range of -40 to +85°C. It incorporates a two-stage powerdown control, allowing faster switch-on times for use in pulsed power saving mode. This also improves the 'time to good data' of the receiver from power-up. By duty cycling the receiver 'on' and 'off' the power consumption of the receiver can be reduced to less than 1 mA, says the manufacturer.

Other features of Mitel's KESRX04 include AGC control of the internal RF amplifier and a mixer-booster current to improve the dynamic range of the receiver. AGC control can be applied to an external amplifier if required. A secondary noise reduction filter is also incorporated to lower the noise contribution of the RSSI, improve the sensitivity of the receiver and reduce the gain in the IF.

For further information, contact Multitech Electronics Corporation, (031) 764 3226.





Share this article:
Share via emailShare via LinkedInPrint this page



Further reading:

Highest increase in global cyberattacks in two years
Information Security News & Events
Check Point Global Research released new data on Q2 2024 cyber-attack trends, noting a 30% global increase in Q2 2024, with Africa experiencing the highest average weekly per organisation.

Read more...
The power of PKI and private sector innovation
Access Control & Identity Management News & Events Government and Parastatal (Industry)
At the recent ID4Africa 2025 Summit in Addis Ababa, the spotlight was firmly on building secure, inclusive, and scalable digital identity ecosystems for the African continent.

Read more...
Bosch Security renamed Keenfinity
News & Events
Globally renowned brands for video systems, access control and intrusion alarm systems, as well as communication systems, unite under the roof of the new company Keenfinity Group.

Read more...
2025 video surveillance market set for improved fortunes
News & Events Surveillance
Novaira Insights has unveiled its latest report, World Market for Video Surveillance Hardware and Software – 2025 Edition, forecasting a healthy growth rate of 8,1% until 2029, excluding China.

Read more...
Wialon announces integration with fleet maintenance and optimisation platform
News & Events Transport (Industry) Logistics (Industry)
Fleet management software platform integrates with a fleet maintenance and optimisation platform to support mutual customers for better workflows and deeper insights into fleet operations.

Read more...
DeepSneak deception
Information Security News & Events
Kaspersky Global Research & Analysis researchers have discovered a new malicious campaign which is distributing a Trojan through a fake DeepSeek-R1 Large Language Model (LLM) app for PCs.

Read more...
Almost 50% of companies choose to pay the ransom
News & Events Information Security
This year’s Sophos State of Ransomware 2025 report found that nearly 50% of companies paid the ransom to get their data back, the second-highest rate of ransom payment for ransom demands in six years.

Read more...
Value and industry insight
Securex South Africa Training & Education News & Events
Securex South Africa 2025, co-located with A-OSH EXPO, Facilities Management Expo, and Firexpo, drew thousands of security professionals from across the continent and beyond, offering a platform for networking, product discovery, and knowledge sharing.

Read more...
Gallagher Security achieves ISO 27001 recertification
News & Events Training & Education
Gallagher Security has successfully achieved certification to the updated ISO/IEC 27001:2022 standard for Information Security Management Systems (ISMS). This accomplishment builds on previous certifications and reflects a continued commitment to the highest standards of information security.

Read more...
Survey highlights cost of cyberdamage to industrial companies
Kaspersky Information Security News & Events
The majority of industrial organisations estimate their financial losses caused by cyberattacks to be over $1 million, while almost one in four report losses exceeding $5 million, and for some, it surpasses $10 million.

Read more...










While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd. | All Rights Reserved.