Yaesu FTDX10 Receiver Performance Comparison with Elecraft K3
A comparative analysis of Yaesu FTDX10 and Elecraft K3 receiver performance in contest environments.
Description
Evaluates the Yaesu FTDX10 receiver performance against an Elecraft K3 (serial #216) during the NAQP CW contest, specifically assessing weak signal reception adjacent to strong signals. Testing involved a 300 Hz bandwidth, Audio Peak Filter (APF) activation, 6 dB attenuation, and preamplifier deactivation to simulate challenging operating environments. The FTDX10's adjustable APF, offering NARR, MED, and WIDE settings, is directly compared to the K3's single APF setting.
Observations highlight the FTDX10's superior suppression of a strong signal at X+100Hz, demonstrating less bleed-through into the passband compared to the K3, even with the K3's 500Hz roofing filter engaged. This indicates improved dynamic range and selectivity in the FTDX10's receiver architecture under high-intensity signal conditions.
The analysis also briefly notes transmit T/R relay noise characteristics, providing a comprehensive, albeit concise, technical comparison of these two popular HF transceivers.