不知有大佬遇到此问题？求助如何解决。谢谢

@"BG0GAA"#p35028 m哥有一期视频，专门讲7300功率不够，，，最后换电源线了原因，电源线压降了，，分别测一下待机跟发射时电源端跟机器屁股后面电压，，

@"BH9FPK"#p35030 居然是电源线的问题？

7300 在低于12V发射的时候发射功率会显著下降，我遇到过，换了根更短的电源线，就好了，建议7300最好少用服务器电源（12.4v）加长电源线，注意观察压降，在屏幕上就能看到Vd的电压条，低于12V 低功率也会出输低一些，我换了线，FT8没啥影响后期不倒腾了，求精电源挺好就是长时间高负载风扇转的难受

不要在SSB模式测试功率，这个跟你喊得音量成正比。。喊得越响、功率越高。测试功率时选择FM模式

考证的题有这个内容。测试功率不能再ssb，要在cw或者fm模式。

我在helloCQ com的网站发了文章应该有用

@"Bi4KKF"#p35047 我也纠结，换了一根电源线。FM模式下功率没问题，到了SSB同样的问题。满功率只能吼到50瓦，吹口哨可以到满功率。好奇怪。。

@"BH8AVW"#p35160 老师方便发个链接吗？

@"BG0GAA"#p35177 看来你声音不够大你试试电容咪或者换个台咪熊猫咪改一下也行，熊猫咪我有一个改了的，不用喊也能出很高功率

Help! I'm having trouble with my IC-7300. The SSB transmit power meter shows that the output power is not reaching the set level.

BG0GAA

Has anyone else encountered this issue? I'm looking for help on how to resolve it. Thank you.

BH9FPK

BG0GAA My friend "m" has a video that specifically discusses the issue of insufficient power with the 7300, and he eventually replaced the power cable.
The reason could be that the power line has voltage drop. It's best to measure the voltage at both ends of the power line, as well as at the back of the machine, when it's in standby mode and during transmission.

BG5CYY

BG0GAA 1. Measure voltage drop on power cord using a multimeter.
2. When measuring power, do not use the SSB mode; switch to CW/FM mode.

BG0GAA

BH9FPK Could it be a problem with the power cord?

Bi4KKF

When the 7300 is operated at voltages below 12V, the transmit power will decrease significantly. I experienced this myself; replacing the power cable with a shorter one resolved the issue. I recommend using a server power supply (12.4V) with an extended cable for the 7300, and carefully monitor the voltage drop. You can see the Vd voltage bar on the screen, which will indicate low power output when below 12V. Replacing the cable did not affect my FT8 operation. I no longer modify it. A good quality power supply is helpful, but long-term high-load fan operation can be uncomfortable.

BG0GAA

Bi4KKF I'm also struggling with this. I replaced the power cable, but the problem persists. In FM mode, the power output is fine, but in SSB mode, it's still the same issue. At full power, I can only achieve 50 watts, while whistling can reach full power. This is very strange.

BD3OOX

Measure power using AM or FM.

BD4TZY

Do not test power in SSB mode; this is proportional to how loudly you speak. The louder you speak, the higher the power. When testing power, choose FM mode.

BG8KUQ

The questions require this content: The test power must not be set to SSB; it must be in CW or FM mode.

BH8AVW

I posted an article on the helloCQ.com website. It should be helpful.

BG0GAA

BH8AVW Could you please share a link?

Bi4KKF

BG0GAA It seems your voice isn't loud enough. Have you tried using a condenser microphone or swapping to a different microphone? You could also modify the "Panda" microphone; I have one that I've modified, and it can produce high power output without needing to be shouted into.

BH8AVW

BG0GAA 搞定：7300扩展SSB功率及天调调整范围|https://www.hellocq.net/forum/read.php?tid=375406

BG0GAA

Bi4KKF It turns out that the problem was with the microphone.

BG0GAA

Bi4KKF There's also another issue: when recording in SSB mode, the transmit power is lower. Could this be related to the microphone?

BH9FPK

BG0GAA Then add the mayonnaise.

BG0GAA

BG5CYY The FM power is normal and can reach its maximum level. However, SSB (Single Sideband) cannot.

BG0GAA

BH9FPK It seems like I'm really losing control.

BG2ELG

BG0GAA Perhaps the issue is insufficient gain from the microphone; does the radio have an option to adjust the microphone gain?

Bi4KKF

BG2ELG I remember seeing it; I'll look for the manual to see if there are any instructions, but don't adjust the enhancements too much.

BG0GAA

Bi4KKF I found that adjusting according to the instructions resulted in a lower power output.

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