http://en.wikipedia.org/wiki/Amplitude_modulation.In the discussion about Modulation Index, they ...
http://en.wikipedia.org/wiki/File:Amplitude_Modulated_Wave-hm-64.svg Please can you explain me what is wrong here? Thank you. Petr Duga Here is my MPY634 connection: Here are MPY634 signals: where: CH1: pin 1 (X1)- 900kHz, 1.04Vpp, -253mV DC, carrier ...
WikiMatrix 如果调制指数(英语:modulation index)小于1,DSB-SC可以像AM一样,用简单的包络检波器解调。 DSB-SC can be demodulated by a simple envelope detector, like AM, if the modulation index is less than unity. WikiMatrix 他列举了Ahad Ha'am的例子,Ahad Ha'am在1891年访问巴勒斯坦后发表了一...
示意图 一个简单的振幅调变示意图如下： 图片参考：upload.wikimedia/ *** /zh/6/6f/Amplitude_modulation 振幅调变的讯号No.4就是(No.1+No.2)*No.3得来。 通用范例 考虑一个调变讯号 m(t)，它可能包含所有情况。调变过后的数学式写出来如下： 图片参考：upload.wikimedia/math/f/8/2/f8...
« Reply #2 on: June 04, 2023, 0338 UTC » The signal is in the waterfall at 0332z, though that is about it. Sounds like maybe intermittent modulation with a very narrow AM filter and considerable DSP filtering applied here. HF+D and 31' vert. Logged Tampa, FL USA | US Map ...
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AD149 Radio 6934.9 AM 0113 UTC 26 JUL 2024 « on: July 26, 2024, 0114 UTC » 0113z - Waterfall carrier with low modulation of music. SIO 322 trending downwards. DSB sync tuning. Not an easy copy, but it is there.0117z - Possible peskies on 6935lsb.0148z - Music. Modulation...
HFU Wiki Chat HFU Special Sites Login Register HFU HF Underground » Loggings » European Pirates and Private Stations (Moderators: Beerus Maximus, Ray Lalleu, DimBulb, ChrisLobdel, Skipmuck, Shortwave_Listener) » The Vault 6985 AM 1437 utc 06 Apr 2021 We seek to understand...
HFU Wiki Chat HFU Special Sites Login Register HFU HF Underground » Loggings » European Pirates and Private Stations (Moderators: Beerus Maximus, Ray Lalleu, DimBulb, ChrisLobdel, Skipmuck, Shortwave_Listener) » Offshore Music Radio 6945 AM 2055 UTC 10 Jul 2022 We...
Online KiwiSDR Receivers HFU Wiki Chat HFU Special Sites Login Register HFU HF Underground » Loggings » North American Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, refmo, ChrisLobdel, Skipmuck, PirateSWL) » YHWH...