GENERAL: Type: Amateur VHF transceiver: Frequency range: TX: 144-148 MHz RX: 144-148 MHz Tuning steps: Channelized: Frequency stability: Max ? ppm: Mode:

2022年7月4日 · 第一种方式是 VFO 或可变频率振荡器。 当您处于此模式并按下向上箭头向下箭头按钮时，频率将上升或下降。 而在 VFO 模式下，您可以通过数字键盘编辑频率，并将其输入 …

Icom is an outstanding, comprehensive radio manufacturer that produces radio communication equipment of all genres, from amateur radios to terrestrial, marine and avionics radios, as well …

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ICOM Stations-Transceiver IC-21A. Frequenzbereich: 144–146 MHz, 24 Quarz-Kanäle; Betriebsart: FM; P out: 0,5–10 W regelbar. Model page created by Bernd P. Kieck. See "Data …

2023年2月14日 · アマチュア無線機、古い機種で、アイコムのic-21用の外部vfoを入手しましたが、どなたか取り付け方法を教えてください。 そのままでは取付できなくて、IC-21本体を少 …

The ICOM IC-21A is a VHF transceiver. It covers 144-146 MHz for both receive and transmit. RF output is 0.5-10 W. The radio operates on 13.8V DC or mains power and weighs 7.2 kg. …

It is driven low by IC21, PST51A (Typo in the Circuit Description of the TS-940 Service Manual identifies it as PST5184). The PST518A is a voltage threshold sensor on the +5V line from the …

2015年12月4日 · Made it easier to swap out crystals on the fly without having to open up the radio each time. External PTT was likely for a foot switch or some other adaptive Push To Talk …

There is a manual flying around the internet, claiming it's for IC-21A. It is. also available from Icom's own site. However, it's actually for IC-21 (without A) which is a bit different in design.