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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...
UHF (Ultra High Frequency) and VHF (Very High Frequency) represent the frequency types of radio transmit. UHF is a short-range communication frequency band that operates in the 300 MHz-3GHz bands, VHF is radio frequencies in the range between 30-300MHz.
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DMR VHF UHF walkie talkie compatible with Mototrbo Tier I&II Digital Protocol radio DM-880 $84.00 - $94.00 Min. order: 2 pieces VHF or UHF talkie walkie IP-620 199 channels ham radio transceiver 1500mAh battery capacity $99.00 - $109.00 Min. order: 2 pieces 4g 3g LTE sim card handheld...