FT-710配合JTDX玩FT8，之前都没有问题，但是突然发射没有功率了，不知道什么原因，大家有遇到过吗？声卡选择的USB，测试cat没有问题，测试ppt和实际发射都没有功率。

我遇到过，最后解决办法是710重置，就会好，目前未找到更好办法，我是在更换控制电脑后出现的这个问题

看一下你jtdx控制发射频率的地方是不是红线的发射线选在了3000以上 [upl-image-preview uuid=c2b3880c-9142-43e4-8fe0-6fb54386193e url=https://storage.hamcq.cn/2025-01-13/1736774812-970009-wechatimg186809.png alt={TEXT?}]

我用7300也出了这个问题, 后来换了 wsjt-x 好了, 搞不懂是怎么回事.

@"BG6HVC"#p58970 @"BG6HVC"#p58970 jtdx老有奇奇怪怪问题，奈何wsjt不好用啊

我这个未必是jtdx的锅, 我晚上又接了ft8cn, 一发射就显示连接断开了, 我后面还是打算搞一个win平板, 装个wsjt带着

我之前的g90n和ft-450d只接音频acc线, vox发射, jtdx一直都没问题, 就是换了7300折腾好久都搞不定

我昨天给接接手机的usb线装了4个磁环, 7300终于有时能发射不掉usb连接了, 但功率输出只有40%, 我打算再买几个磁环试试, 还是不行我就还是用450d了

先看软件真的输出、输出对音频了没有

我上次遇到这个问题是火绒更新加入了设备隐私控制功能，没注意提示把我电台音频给ban了。

How to solve the problem of using FT-710 with JTDX for FT8 operation while transmitting without power?

BI1MXY

When using an FT-710 with a JTDX for FT8, I previously had no problems. However, suddenly the transmitter stopped working and I don't know why. Has anyone else experienced this? Regarding the sound card: I chose a USB option, and the CAT test worked fine. However, both the PPT test and actual transmission resulted in no power output.

bh1cqz

BI1MXY 发射没功率会有几种情况，这也是我最近经历过的以及从解决的。

设置正常死活链接不上，点击cat的时候提示报错。处理方式，充值710，然后就莫名的好了（重置大法就是NB）
链接陈工发射只有5瓦，输出3.5A，电脑问题，需要将声音选好讲麦克风完全打开，然后所有设备关机重启，好了发射91w，17.5A
总结一下，声卡还是要在电脑上配置一下的，完全打开才可以。入到结局不了的问题就重置一下。

BG9PQO

I have encountered this issue, and the only solution I found was a hard reset of the 710. Currently, I haven't been able to find a better solution. This problem started occurring after I replaced the control computer.

BH4FSK

Can you check if the red line in your JTDX control system is selecting a frequency above 3000?

BH8DDA

In the mode settings, make sure to check the "preset" option.

BG6HVC

I also experienced this problem with the 7300, but it was resolved by switching to the wsjt-x. I'm still trying to figure out what caused it.

BG9PQO

BG6HVC

BG6HVC jtdx has been experiencing a lot of strange and unusual problems, but unfortunately, wsjt doesn't work well.

BG6HVC

This might not be my fault; I also connected with FT8CN, and immediately after transmitting, the connection was lost. I still plan to get a Win tablet and use it with WSJT.

BG6HVC

My previous G90N and FT-450D only used the audio ACC line for transmitting audio; the Vox and JTDX always worked fine. However, I've been having trouble getting the 7300 to work.

BG6HVC

Yesterday, I installed four magnetic rings on the USB cable for my J-Link, and the 7300 was finally able to connect via USB without disconnecting. However, the output power remained at only 40%. I plan to buy a few more magnetic rings to try again, but if that doesn't work, I'll stick with the 450d.

BI4IVE

BG6HVC 买个遏流环就好了咸鱼 150W 80+

BG9JDI

First, let's check if the software actually outputs anything and whether that output relates to audio.

BG6HVC

I can hear sound through my computer's speakers when I output audio, and the default sampling rate is 48000.
After going live, the CAT mode testing was good. When switching to FM mode, the PPT transmit power also appeared normal. However, when using FT8, the USB connection would immediately drop, and there would be no power if it didn't. I plan to see if I can connect a line to the ACC.

BG9JDI

BG5VCU-VK2VCU-AK6CU

Liridice

The last time I encountered this issue was when the Fire Radio update added device privacy controls, and I didn't pay attention to the notification that it had blocked my radio audio.

BG5VCU-VK2VCU-AK6CU

Verify that the audio sampling rate settings are correct.

BG5VCU-VK2VCU-AK6CU

BG6HVC

With a frequency of 48000 Hz, the FT-710 will not function correctly and cannot properly modulate sound to output power. I personally use 44100 Hz. I have encountered this issue before, and I found that foreign amateur radio operators (hams) also experience this problem. I also own this device.I suspect this is the root cause of the problem.

Regarding the USB disconnection issue, I'm providing you with a troubleshooting approach. If the USB disconnects when the FM or single-sideband transmitter is operating at full power, it indicates that the problem lies in the software rather than RF interference on the USB connection itself.

BG6HVC

BG5VCU-VK2VCU-AK6CU Thank you for your guidance. I was able to fix the audio output in Windows by changing it to 44100 Hz, and now FT8 is working correctly.

Liridice

BG5VCU-VK2VCU-AK6CU 这个问题有深层次的原因么，我的电脑设置成48000Hz时FT-710也能正常工作。

BG6HVC

I'll try again, thank you.

BG5VCU-VK2VCU-AK6CU

BG6HVC If I can solve the problem, then I have succeeded! 😆

BG5VCU-VK2VCU-AK6CU

BG6HVC If you want to listen to whether the sound output from the computer is normal, you can enable the "MONI" monitoring function in the menu.

BA4RCM

BG6HVC 大佬您现在正常了吗？我的7300也是ft8一发射就断usb

BG6HVC

I tried it and found that using too much power still caused other problems, such as the mouse malfunctioning. I also bought a common-mode chokes to try. Now, with lower power, it seems to work fine.

BG5VCU-VK2VCU-AK6CU

BG6HVC Optimize antenna>Optimize radio grounding>Ensure proper shielding (e.g., using a choke), and I hope you have a successful launch soon.

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