C-QUAM - Wikipedia
C-QUAM (Compatible QUadrature Amplitude Modulation) is the method of AM stereo broadcasting used in Canada, the United States and most other countries. It was invented in …
AM stereo - Wikipedia
C-QUAM is a modified form of quadrature modulation in that the phase modulated audio consists of both the L+R and L-R portions, modulated 90 degrees out of phase with each other. …
AM Stereo C-QUAM立体声调幅中波发射机电路 - 〓电子管技术区 …
2020年12月23日 · 摩托罗拉C-QUAM调幅立体声技术是基于QUAM正交调幅技术上研发的，QUAM的特点是允许在一个频率上传输多个信号。 C-QUAM中的C代表兼容传统单声道调幅 …
WHAT IS C-QUAM®? C-QUAM® is a system using amplitude modulation for the main (L + R) signal, and a quadra-ture type of phase modulation for the stereo information. Quadrature …
中波调幅立体声介绍【收音机爱好者吧】_百度贴吧
摩托罗拉c-quam制式原理 兼容-正交调幅是在正交调幅（QUAM）基础上发展起来的，QUAM特点是在一个频道上可同时传送左右信道两个信号。
The AM Stereo Tech Zone™
This circuit can be used with a C-QuAM® exciter to generate a C-ISB™© (envelope compatible) Stereo Signal. Place it between the last audio processor and the exciter. Maximum sideband …
Motorola C-Quam AM Stereo System INTRODUCTION There are five basic techniques for adding stereo to standard AM broadcast transmissions. These five were proposed to the FCC in the …
ASMAX2 (AM DDS) C-QUAM Stereo Transmitter - ASPiSYS
ASMAX2 is a C-QUAM compatible Stereo, or Mono capable AM Medium Wave DDS-based (better than PLL stability) radio broadcast board for educational or similar use that offers great …
C-Quam AM Stereo Transmitter Using Valves - Radiomuseum
2012年1月22日 · In the C-Quam system, the Left and Right audio signals are combined into L+R and L-R signals, and then are used as the modulating signals in a quadrature AM modulator. …
FM STEREO调频立体声和AM STEREO(C-QUAM)调幅立体声音质对 …
https://youtu.be/WIW3o552t6A 摩托罗拉C-QUAM制式AM STEREO调幅立体声技术和FM STEREO调频立体声技术音质对比。 发射器：ASMAX-1 (ASPiSYS) 收音头：ST-JX 220A 立 …