2021年8月3日 · The digital signal processing techniques in WSJT-X make it substantially easier for amateur radio operators to employ esoteric propagation modes, such as high-speed …

2024年11月14日 · I agree. But part of the reason 2 meters is underestimated is the limitations of FM, which is a lousy weak-signal mode. I've done repeated testing with a ham friend about 30 …

2025年2月12日 · Sometimes it takes a few days before we will hear transmissions which are a digital signal decoded through WSJT-X software. Once it starts transmitting a link will be …

2024年11月7日 · The superheterodyne process involves tuning the local oscillator to a frequency which is different from the received signal by as many kilohertz as the intermediate frequency. …

2024年11月14日 · Yaesu has launched 3 new exciting mobile radios featuring Super-DX and a Audio Digital Signal Processor to improve audio quality! The Super-DX function increases the …

2024年11月16日 · why don't Yaesu change the Yaesu FTX-1F HF/50/144/430MHz so it runs 100 watts on the HF/6 meter bands, 2 meter at 50 watts and 440 at 40 watts with this so called …

2024年2月1日 · Standing wave ratio or SWR is the ratio between the maximum and minimum amplitudes of the standing wave. When there is an impedance mismatch, part of the signal is …

2010年4月12日 · Dxpedition to Sable is planned for mid-October. The team would like to invite on interested Dx'ers to work us. We will enjoy filling many band/mode needs as well as first time …

2024年10月3日 · We know that higher bands like VHF/UHF and above have line of sight propagation, meaning that it will not be heard beyond the horizon where the Earth's curvature …

2024年2月16日 · In its long state – and when connected to electronics such as a transceiver, ground plane, and battery – the antenna emits a low-power signal in all directions, allowing for …