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Interference, Pre-Emphasis, and the Capture Effect in FM and PM Systems

Interference, Pre-Emphasis, and the Capture Effect in FM and PM Systems

Interference in FM grows stronger with frequency offset, until pre-emphasis flattens the curve. See why a signal just twice as strong as a rival broadcast can completely capture the channel.


Nordic Rolls Out New Multiprotocol SoC for Size- and Cost-Effective IoT

Nordic Rolls Out New Multiprotocol SoC for Size- and Cost-Effective IoT

Nordic Semiconductor's nRF54LC10A combines Bluetooth LE, Thread, Zigbee, and Matter support with low power consumption and advanced security in a compact package for IoT devices.


News Oct 02, 2026 by Joshua Tidwell
The Benefits and Limitations of Pre-Emphasis and De-Emphasis in FM Noise Reduction

The Benefits and Limitations of Pre-Emphasis and De-Emphasis in FM Noise Reduction

Pre-emphasis and de-emphasis boost noise performance in FM, but only up to a point—push the gain too far and you risk overmodulation.


Pre-Emphasis and De-Emphasis Filtering in FM Systems

Pre-Emphasis and De-Emphasis Filtering in FM Systems

Simple first-order pre-emphasis and de-emphasis filters can boost FM receiver SNR by more than 13 dB by exploiting the spectral differences between signal and noise.


Semtech Adds New Transceivers for ‘Complete Wireless IC Portfolio’

Semtech Adds New Transceivers for ‘Complete Wireless IC Portfolio’

The new members deliver fourth generation LoRa Plus IP-core compatible performance at less stringent tiers to complement flagship LR2021.


News Sep 14, 2026 by Duane Benson
FM Threshold-Extended Demodulators: Insights on FMFB and PLL-Based Designs

FM Threshold-Extended Demodulators: Insights on FMFB and PLL-Based Designs

Worked examples quantify just how much the FMFB loop shrinks noise bandwidth. We also show how the PLL demodulator offers a simpler alternative for reducing threshold.


Alif Semiconductor Unveils $49 StartKit Platform for Edge AI Development

Alif Semiconductor Unveils $49 StartKit Platform for Edge AI Development

The new evaluation kits aim to lower the barrier for on-device AI development with Alif’s AI/ML hardware-accelerated Ensemble and Balletto MCUs.


News Sep 09, 2026 by Jeff Child
Evaluating SNR Performance of FMFB Demodulators at High CNR

Evaluating SNR Performance of FMFB Demodulators at High CNR

While feedback lowers the FM detection threshold, it offers no noise advantage over conventional receivers when the carrier power is strong. Discover why in this discussion and mathematical analysis.


FM Demodulation with Feedback: Exploring Threshold Reduction Mechanisms

FM Demodulation with Feedback: Exploring Threshold Reduction Mechanisms

By closing a feedback loop around the demodulator, the FMFB architecture narrows the noise bandwidth and lowers the FM threshold, without improving SNR at high CNR.


From BMW to Data Centers: Brands Tap 3 Known Chips in New Ways

From BMW to Data Centers: Brands Tap 3 Known Chips in New Ways

Companies across industries are leveraging tech from NXP, MaxLinear and Nordic Semiconductor on automotive UWB, accelerated OpenZFS storage, and low-power Bluetooth Mesh sensing.


News Aug 28, 2026 by Joshua Tidwell
Espressif Unwraps Open-Source Device-to-Cloud-to-Phone IoT Platform

Espressif Unwraps Open-Source Device-to-Cloud-to-Phone IoT Platform

The rebuilt platform puts the previously closed cloud backend under an Apache 2.0 license and runs on AWS serverless services in a customer's own account.


News Aug 24, 2026 by Luke James
Exploring the Threshold Constraints of FM Demodulation Through Solved Examples

Exploring the Threshold Constraints of FM Demodulation Through Solved Examples

Working through examples shows how the threshold effect reshapes FM design choices. See how ignoring it can undershoot the required carrier power by over 5x for the same target SNR.


What’s Next in Wireless Communication? An Insider’s Perspective

What’s Next in Wireless Communication? An Insider’s Perspective

Joaquin Torrecilla, Keysight’s VP of Software Transformation, joins the show to discuss the evolution of wireless tech—from early Bluetooth to LEO satellite lasers, RedCap, and AI-native 6G.


Introduction to the Threshold Effect in FM Systems

Introduction to the Threshold Effect in FM Systems

The standard FM SNR equation breaks down once the carrier-to-noise ratio drops below a critical threshold, revealing a hard limit on trading bandwidth for noise performance.


Silicon Labs Unwraps Its ‘Lowest Power’ BLE SoC Targeting IoT Devices

Silicon Labs Unwraps Its ‘Lowest Power’ BLE SoC Targeting IoT Devices

The EFR32BG2B SoC family supports Bluetooth 6 and is the lowest power Bluetooth LE chip with channel sounding from Silicon Labs.


News Aug 14, 2026 by Duane Benson
SNR Analysis of FM Modulation with Arbitrary Message Signals

SNR Analysis of FM Modulation with Arbitrary Message Signals

Deriving a general signal-to-noise expression for frequency modulation with any message signal reveals a core trade-off: more deviation buys better noise performance, but only by using more bandwidth.


Understanding Noise in FM Systems: The Tone-Modulated Scenario, Part 2

Understanding Noise in FM Systems: The Tone-Modulated Scenario, Part 2

This article explores how combining signal and noise power reveals how the FM system’s output SNR scales with carrier amplitude and modulation index.


Understanding Noise in FM Systems: The Tone-Modulated Scenario, Part 1

Understanding Noise in FM Systems: The Tone-Modulated Scenario, Part 1

Explore how frequency-modulated waves resist interference. We break down the demodulator architecture and derive the exact output signal power for a sinusoidal message.


Infineon Serves up Security IC Supporting USB and NFC Connectivity

Infineon Serves up Security IC Supporting USB and NFC Connectivity

The new SECORA ID Key S USB security solution supports FIDO2 and PKI through hardware and near field interfaces.


News Jul 20, 2026 by Duane Benson
Understanding the Noise Performance of AM Receivers with Envelope Detection

Understanding the Noise Performance of AM Receivers with Envelope Detection

Envelope detection is simple, but that simplicity has a noise-performance cost. Here’s how much SNR conventional AM gives up compared to its coherent counterparts.