如题，我有一台宝峰UV5RHPro，只要一掐PTT键我的电脑耳机就会嗡嗡作响，耳机是金士顿飓风2。有没有人懂这是什么原理，新人求教

我觉得是谐波和杂散。谐波：基础频率的整数倍。如50Hz的整数倍，100Hz、150Hz。杂散：杂散（Spurious Emissions）是指在必要带宽之外的一个或多个频率上的发射，其发射电平可以降低而不影响信息的传递。我觉得杂散的同时也同时产生谐波。比如宝锋5RH Pro发射频率在435Mhz，杂散产生在400Mhz左右。在2.4G左右存在杂散的谐波。金士顿HYPERX 飓风无线的无线技术：基于2.4GHz无线连接技术，降低音频传输延迟，提供稳定信号。这个宝锋5RH Pro在2.4G左右产生的杂散谐波可能就是造成电脑耳机就嗡嗡作响的原因。要改变这种情况。建议尝试调节宝锋5RH Pro的发射频率，比如同频段调整发射频率或U段改V段再试按下PTT。或者把宝锋5RH Pro的发射功率调整到低档发射试试。

@"arwoon"#p88890 但是我好像说漏了几点，第一我这个是有线耳机，没有无线的功能，我猜可能是手台的功放原件干扰到了耳机的功放，但是不知道对不对；第二我发现这个问题只在V段会出现，U段就没有了

2000年左右用过800M GSM 网络的手机的老头子们都知道。当耳机开始有节奏嗡嗡响的时候，要么是短信，要么是电话来了............. 还有一首SHE的《RingRingRing》结尾.......很明显的嗡嗡嗡🙃

@"BG7NQF"#p88899 写错了，是歌曲《RingRingRing》开头《借口》结尾，都可以听到手机干扰的那种嗡嗡声

@"BG7NQF"#p88901 还真的是。

可能是和什么元件互相作用起到包络解调的作用了，很多东西都有这个效果，比如电弧：https://www.bilibili.com/video/BV1UC4y1s7iD

@"BI1XJT"#p88912 从视频以及楼主的耳机来看怎么感觉像是矿石收音机（有耳机、有电线）接收PTT信号

显示器、音响、台灯、都碰到过被干扰的情况，最好笑的一次是我跑到卫生间窗户那里通联，小米洗手的机器直接被干扰的开机吐泡泡。。。

@"BI1XJT"#p88912 我猜测·，像无处不在的“电容”（电路板上的分布电容）和“二极管” （每个ic 管脚上都有的上下保护二极管）完成了检波这个作用吧

我ppt，唯一问题的就是我的电脑漫步者音箱就响

Why does my computer's headphones start buzzing when I press the PTT (push-to-talk) button on my handheld radio?

BD3QID

Try transmitting in AM/SSB mode and see if you can reproduce your transmitted signal.

FrankXin

The situation is exactly the same as with my wired speaker. Later, I discovered that setting a mute function would solve the problem. Therefore, I suspect that stray low-frequency radio waves emitted during transmission by the handheld device interfered with some electromagnetic components within the speaker (such as electric speakers or electromagnets).

BH2XWP

BG7NQF I always thought that the "RingRingRing" at the beginning was a phone vibration.

BG7NQF

BH2XWP The quietest part at the beginning, lasting 0.5 seconds, is the sound of radio interference. Then comes the louder vibration sound, followed by the song's intro.

BG5VXJ

You can also disable the computer's network port.

Watermelon

Just looking at the callsign used by the original poster reminded me of Zhu Zhu Xiang.

youyudehai

Watermelon Haha, that's really awesome!

BH4HVT

It's like that kind of radio interference. When I turn off my handheld device, the computer also makes a sound similar to the one it produces when you plug in a USB drive.

BH9FPK

I plugged in my earphones, and when I heard SSB (Shortwave Broadcasting Service) on my computer, I could hear my own voice inside the earphones.

BA4KKG

I have a black vinyl-encased USB drive that I plugged into my computer's USB hub. When I opened the folder on the U drive, it appeared directly on my computer screen.

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