即使将天线放置在阳台上,在降低本底噪声方面也会产生很大的不同。这对 VHF/UHF 来说不是问题,但这些天线也可以从外面受益,因为障碍物的衰减会更小。 对于HF,我个人建议您首选MLA-30环形天线,因为它是一项适度的投资,并且在如何配置方面相当灵活。我相信我们的定期撰稿人 Grayhat 会提供一些有用的建议,因为他是城...
这对 VHF/UHF 来说不是问题,但这些天线也可以从外面受益,因为障碍物的衰减会更小。 对于HF,我个人建议您首选MLA-30 环形天线,因为它是一项适度的投资,并且在如何配置方面相当灵活。我相信我们的定期撰稿人 Grayhat 会提供一些有用的建议,因为他是城市 HF 天线方面的专家。 此外,IC-R8600还是一款出色的宽带接收...
Define HF radio. HF radio synonyms, HF radio pronunciation, HF radio translation, English dictionary definition of HF radio. n. Abbr. HF A radio frequency in the range between 3 and 30 megahertz. American Heritage® Dictionary of the English Language,
VHF radio propagationThis Chapter considers space weather effects of the ionosphere on the propagation of radio frequencies classed by the International Telecommunications Union as HF (3 MHz), VHF (300 MHz) and UHF (30000 MHz). The ionosphere and its variation is important for these radio ...
内置1200/9600/19200波特率VHF/UHF高速数据传输模块。 DSP Tracker 采用类似PACTOR的OFDM技术 紧凑小尺寸设计,极低的电力消费,70ma@13.8V 特别适合坐标或短消息传输 可以提供盲发及建链两种模式 GPS接口(符合NMEA规范),USB计算机数据口 通用DSP TNC和使用APRS位置跟踪器 ...
We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale...
(HF) outback communications within Australia, and networks such as HF Radio Club / VKS737 / Austravel Safetynet / Aussie HF / RFDS - Flying Doctor etc. Also included in the FAQs are the dealer sales timelines of the Codan Envoy / NGT /9323-9360/8528/8525 and Barrett 4050 / 2050 /...
No drivers required!100% Plug-and-play on Windows Vista, Seven, 8, 8.1 and 10 Industrial Operating Temperature: -45°C to 85°C Small Form Factor: 55 x 90 x 12 mm Typical Applications High Performance Networked HF/VHF Radio Ham Radio (HF + 2m) ...
VHF/UHF Logs, including satellites and radiosondes Post anything above 30 MHz, other than Ham, FM and TV, here 1593 Posts 237 Topics Last postbyR4002 inAsian Fishermen Fishery ... on November 27, 2024, 1137 UTC Other Loggings of Other Stations ...
Also as a bonus, in a related video VK3YE also shows the RTL-SDR Blog V4 being used on SDR Touch on an Android phone for portable HF, VHF and UHF reception. Hear HF VHF UHF on an Android phone RadioWorld Magazine Article about Software Defined Radios for Shortwave Listening ...