You'll encounter four main types of filter: low pass, high pass, band pass and band stop/reject filters. Each type of filter has its own characteristics and usefulness. Before we discuss each in turn, it is helpful to note some conventions when dealing with graphs for filters. We measure...
TheBCD-14 Band Decoder / Antenna Selectorare designed for hams building their own custom automatic band switching systems. It uses the band data output of the Elecraft®K3, certain Yaesu®transceivers, or PC logging programs to automatically select the proper antenna or band pass filter when...
etc? Are multipliers counted once, once per band, once per mode, or once per band and mode. The list goes on!As you can see, there is a lot more that goes into preparing Amateur Radio contesting software in addition to logging a specific exchange. We are doing our best to create ...
We are all familiar with the rise of China as a centre for manufactured goods. Even Japanese amateur radio companies are now having some - or parts - of th... Chavacano 被引量: 0发表: 0年 AD995x DDS/QSD Board and Companion Band Pass Filter Board The AD995x direct digital synthesis ...
The two pictures below show the band pass filter that was designed with the G3JVL filter software. It is a 2 cavity filter built in WG16. Once the filter had been roughly tuned up, it had 0.5dB through loss at 8420MHz, with a bandwidth of about 50MHz. The plot on the right shows...
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Ham Radio Mars|Discover reliable long-distance communication with the LEIXEN UV-25D Walkie Talkie, a robust amateur radio with dual band 136-174 & 400-470MHz, IP55 water-resistance, and a versatile 5W-25W output power.
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A low pass filter C. A set of headphones D. A boom microphone T4A03 Which is a good reason to use a regulated power supply for communications equipment? A. It prevents voltage fluctuations from reaching sensitive circuits B. A regulated power supply has FCC approval C. A fuse or circuit ...