请教一下各位，FT891如何与SDR切换器上的PTT接口连接？我自己看FT891的说明书摸索觉得可能是RTTY/DATA接口的4号和5号针脚与PTT插头连接，不知道是否正确？希望有使用过FT891如何与SDR切换器连接经验的HAM分享一下经验和感受。

[upl-image-preview uuid=9932f9f0-2c2a-4b76-9cf3-c4796941af08 url=https://storage.hamcq.cn/2025-03-17/1742185240-869149-3.jpg alt={TEXT?}]

[upl-image-preview uuid=974a39a1-d6c6-4aa8-af7a-dd3368357478 url=https://storage.hamcq.cn/2025-03-17/1742185281-131682-5.jpg alt={TEXT?}]

[upl-image-preview uuid=d9b26974-97c4-403e-b13f-6fb20203ad35 url=https://storage.hamcq.cn/2025-03-17/1742185301-414444-6.jpg alt={TEXT?}]

附上FT891后面的插口图[upl-image-preview uuid=9f2bd1a2-dec9-43ae-bbfc-37a2428344d6 url=https://storage.hamcq.cn/2025-03-17/1742185419-89510-715.jpg alt={TEXT?}]

[upl-image-preview uuid=16392fd5-c89a-4b24-9e4d-238ea0028d0f url=https://storage.hamcq.cn/2025-03-17/1742185502-209924-8.jpg alt={TEXT?}]

[upl-image-preview uuid=b3ce23fc-0c7d-4ef3-95f0-c3f2344f95fe url=https://storage.hamcq.cn/2025-03-17/1742185650-968436-9.jpg alt={TEXT?}]

[upl-image-preview uuid=6f9b4efa-8cea-4309-9c92-a8ab31a7dd2a url=https://storage.hamcq.cn/2025-03-17/1742196256-134363-6f9b4efa-8cea-4309-9c92-a8ab31a7dd2a.png alt={TEXT?}] 我是这样干的，供参考

@"arwoon"#p57145 [upl-image-preview uuid=6f9b4efa-8cea-4309-9c92-a8ab31a7dd2a url=https://storage.hamcq.cn/2025-03-17/1742196256-134363-6f9b4efa-8cea-4309-9c92-a8ab31a7dd2a.png alt={TEXT?}]

里面的射频检测电路有吗，不接ptt单发射听不见继电器响

Could you please advise on how to connect the FT891 to the PTT interface on an SDR switch?

arwoon

I would like to ask everyone, how can the FT891 be connected to the PTT interface on an SDR switch? After reading the FT891 manual and experimenting myself, I think that the 4th and 5th pins of the RTTY/DATA interface might connect to the PTT connector. However, I'm not sure if this is correct. I hope that anyone who has experience connecting an FT891 to an SDR switch can share their experiences and feelings.

glb7302

arwoon

Please include a diagram of the ports located behind the FT891.

arwoon

glb7302 Thank you!

arwoon

glb7302 Could you please provide the complete SDR transmit/receive conversion instructions? The text "The 'transmit/receive box has an RF detection circuit, even when txgnd is not connected" ends abruptly. I would like to know what comes next and further study this topic.

BG5NKC

Does it have a built-in RF detection circuit? If not connected to the PTT (Push-to-Talk) single transmit, I can't hear the relay click.

arwoon

BG5NKC I don't have that RF detection circuit.

glb7302

BG5NKC I've connected everything, and it feels safer this way. I can also hear the relay clicking when I operate it.

glb7302

arwoon
I don't have all the pictures here either.

glb7302

arwoon

glb7302

arwoon This was found in an online archive at that time; you can also search for it on Bilibili, and there are some reference videos available.

arwoon

glb7302 Thank you very much for sharing this.👍

arwoon

glb7302 Regarding the 8-pin connector for the FT891, do you have any purchase links? If so, could you please share them with me? I've been searching online and it seems there are different sizes and models available. Some of them appear to be quite large.

glb7302

arwoon I didn't purchase anything. After my 891, there is a "Tian Dao" (presumably a specific device or brand), and I am using the original cable that came with it, along with a control line connected to a switch box, so I don't have any purchase links.

arwoon

glb7302 Okay, thank you.

闽ICP备2021006864号-7

闽公网安备35020602002794号互联网举报中心

用户协议隐私政策社区规范积分规则中继规则转载须知
更新日志联系我们常见问题友情链接运营报告赞助

浩奇科技（厦门）有限公司

是无线电，把我们联系在一起