2023年5月11日 · The fact that you have common mode RFI and need such a cable means that your rig is hot. This typically happens when you use a single ended antenna feed. Adding a counterpoise at the antenna and a common mode choke in the antenna cable to your rig would be a much better solution.

I test out the new DigiRig USB cable that eliminates RFI feed back or Common Mode Current. I swing by Mammoth National Memorial Park for testing of the new c...

2022年8月2日 · That means your incoming FT8 signal is mixing with some other unwanted RFI signal and getting “split” into many FT8 signals. It takes TWO signals to cause this issue. That “other” signal is RFI, and is probably in your house, shack or neighborhood.

2020年11月10日 · G90S 玩 FT8 主要用到的端口有两个，一个是数据口（CIV 控制线），目的是让软件可以控制电台频率变更 / 状态模式变更 / 发射控制以及其他高级功能。 另一个是音频的输入输出口，目的是让电台的音频输出来送给电脑的话筒输入，让电脑的声音送给电台的话筒。 当然了，这种说法不严谨。 （这不重要） 首先来说ACC接口，这个口是G90S的音频输入输出通道，兼顾着控制发射等任务。 ACC端口为8针DIN数据接口，PTT脚平时为高电平，拉低之后电台立即 …

2022年11月15日 · The RFI is your own transmitter signal on your transmit frequency. You may possibly study the RF currents in different wires in your installation with suitable current probe or RF voltages with a short wire as antenna.

2023年8月13日 · RFI is disconnecting the USB interface. Add ferrites on the USB interface and grounding to the PC and radio. Edit: also consider a USB opto-isolator. Do you happen to be using an end-fed antenna?

2023年10月8日 · 对于很多刚入门FT8的新手来说，Gary Hinson(ZL2iFB)的这本 FT8操作指南 无疑是本宝贵的小册子，里面凝聚了作者FT8实操中，几万个QSO出来的各种避坑经验、技术技巧、有用提示，以及很多深入浅出的FT8协议细节和设计理念。

RFI-DIGITAL – for Digital Audio/PSK31/FT8, etc. These RFI kits are specifically selected to cure most household computer device RFI problems. It contains Snap On ferrite split beads selected to eliminate RFI from 1 to 300 MHz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases.

Computer Radio Frequency Interference Kits RFI-DIGITAL – for Digital Audio/PSK31/FT8, etc. These RFI kits are specifically selected to cure most household computer device RFI problems. It contains Snap On ferrite split beads selected to eliminate RFI from 1 to 300 MHz.

2024年5月30日 · I've been trying to run ft8 and js8 with my g90 for a while now and I keep getting this RFI in the picture. It happens on multiple computers so I'm pretty sure its got something to do with the radio because it doesn't happen with my truSDx.