# Homebrew cable for Yaesu FT-857D

**URL:** <https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26>\
**Category:** Uncategorized\
**Tags:** yaesu-ft-857d, yaesu-ft-857\
**Created:** [August 2, 2022, 7:56pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26 "2022-08-02T19:56:00Z")\
**Posts on this page:** 15\
**Page:** 1

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**Author:** ![W0BNC](https://forum.digirig.net/user_avatar/forum.digirig.net/w0bnc/32/27_2.png) [@W0BNC](https://forum.digirig.net/u/W0BNC)\
**Post date:** [August 2, 2022, 7:56pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/1 "2022-08-02T19:56:00Z")

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I made the cables a while back, and appear to have audio being picked up by the PC. But I have no CAT control, no PTT. I have tried to configure WSJT-X and Winlink/Vara HF with no luck. There is very little online regarding digital settings for the radio, best I could find was for an FT-897D. Trying this rig with a Rev 1.9. I also have a 1.5 floating around, will it matter for this rig which version is used?

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**Author:** ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)\
**Post date:** [August 2, 2022, 8:45pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/2 "2022-08-02T20:45:09Z")

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Yes, revision of the interface matters because the pinouts are different between 1.5 and 1.9.  
Bob, please post the sketch of the cables you built for your Digirig 1.9 and I’ll check them out.

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**Author:** ![W0BNC](https://forum.digirig.net/user_avatar/forum.digirig.net/w0bnc/32/27_2.png) [@W0BNC](https://forum.digirig.net/u/W0BNC)\
**Post date:** [August 2, 2022, 9:09pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/3 "2022-08-02T21:09:00Z")

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I built them a while back (I believe right after we tested the 1.6 on my KX2) according to this:

> **[Yaesu FT-8xx Cables Build](https://digirig.net/yaesu-ft-8xx-cables-build/)**
>
> We’ve got a positive confirmation of Digirig Mobile making friends with Yaesu FT-857D. Other classic Yaesu HF rigs share the same connectors, specifically: FT-100, FT817, FT-857, FT-897, FT8-…

When testing them earlier this afternoon, they matched the drawings when matching the TRS to the pins on the DIN connectors (both cables). Looking at that page again, it says “the below view is for the male connector on the cable side”. I understand that means looking at it the cable plug, and not the plug on the radio. Now, should I be looking at the DIN connector from the solder side of the connector, or from the pin side of the connector (that plugs into the radio)?

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**Author:** ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)\
**Post date:** [August 2, 2022, 9:25pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/4 "2022-08-02T21:25:15Z")

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The page calls for view from the pin side of the connector.  
Here’s the pinout for 1200 baud TRRS cable from [FT-8xx kit](https://digirig.net/product/yaesu-ft-8xx-cords-for-digirig-mobile/):

 ![cable-Yaesu8xx-Audio-R16](https://forum.digirig.net/uploads/default/original/1X/9d8b82f5c8ba9be6b9cc58e6caa11b4e63081e24.jpeg)

For [9600 baud](https://digirig.net/product/yaesu-ft-8xx-9600-baud-audio-cable-for-digirig-mobile/) tip is connected to pin 3.

Note, that that in order to use PTT functionality of the TRRS connector on Digirig 1.6 and later you need to connect ring 2.

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**Author:** ![Y857D](https://forum.digirig.net/letter_avatar_proxy/v4/letter/y/e56c9b/32.png) [@Y857D](https://forum.digirig.net/u/Y857D)\
**Post date:** [August 2, 2022, 10:34pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/5 "2022-08-02T22:34:01Z")

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Okay, tested the 1.5 and 1.9 with digirig cables on the 817.  
needed to update the cp210x drivers from silicone’s web site for windoze 10. then the digirig on windoze 10 instead of unknown in device manager it now has a comm port which changes when moving from 1.5 to 1.9.  
tested on both wsjtx and js8call to see the cat works and tx works outputting tones. couple hours gone to figure this out…again on windoze. used to using the raspberry pi’s and flrig. spoiled by how easy raspberry pi’s are for mobile operation. if you need my settings let me know. qrz kl7r

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**Author:** ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)\
**Post date:** [August 2, 2022, 10:58pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/6 "2022-08-02T22:58:14Z")

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Yes, please share your working settings (transceiver configuration, digital modes apps etc).

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**Author:** ![Y857D](https://forum.digirig.net/letter_avatar_proxy/v4/letter/y/e56c9b/32.png) [@Y857D](https://forum.digirig.net/u/Y857D)\
**Post date:** [August 2, 2022, 11:02pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/7 "2022-08-02T23:02:02Z")

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will do. the 1.9 works with 857d will test the 1.5 next.

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**Author:** ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)\
**Post date:** [August 2, 2022, 11:05pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/8 "2022-08-02T23:05:30Z")

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Rev 1.5 should use TRS cables with PTT via CAT  
Info for these cables can be found [here](https://digirig.net/yaesu-ft-8xx-cables-build/).

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**Author:** ![Y857D](https://forum.digirig.net/letter_avatar_proxy/v4/letter/y/e56c9b/32.png) [@Y857D](https://forum.digirig.net/u/Y857D)\
**Post date:** [August 2, 2022, 11:43pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/9 "2022-08-02T23:43:55Z")

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WSJTX  
Yaesu 857D and 817  
Digirig 1.5 and 1.9 using the cables purchased from the site.  
Operation system windoze 10  
Run Device Manager  
Scroll down to Ports (COM & LPT)  
If the CP210x is noted as Unknown upgrade the drivers  
Windoze will not upgrade the CP210x Drivers automatically.  
Went to:

> **[CP210x USB to UART Bridge VCP Drivers - Silicon Labs](https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads)**
>
> The CP210x USB to UART Bridge Virtual COM Port (VCP) drivers are required for device operation as a Virtual COM Port to facilitate host communication with CP210x products. These devices can also interface to a host using the direct access driver.

chose 4th one down CP210xwindoze Drivers  
download the driver zip file and extract all.  
Run the file  
CP210xVCPInstaller\_x64.exe  
say yes to install it  
Once the CP210x drivers are installed you’ll see  
CP210x with a comm port number.

Run WSJTX  
File\> Settings\> Radio \> Rig: Yaesu 857  
Cat Control Serial Port: mine was Com6, yours whatever device manager sez it is.  
Data Bits 8  
Stop Bits 1  
Handshake None  
PTT Method Cat   
Split Operation None

File\> Settings\> Audio\>  
Input: Microphone (USB PnP Sound Device)  
Output: Speakers (USB sound device)

CAT and TX work on mine setup this way. To use 817 on both 1.5 and 1.9 Digirig’s there are some changes to the radio choice and sound settings. i’ll note those next for JS8Call.  
Hope this helps.

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<div class="post-metadata">

**Author:** ![Y857D](https://forum.digirig.net/letter_avatar_proxy/v4/letter/y/e56c9b/32.png) [@Y857D](https://forum.digirig.net/u/Y857D)\
**Post date:** [August 3, 2022, 12:00am UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/10 "2022-08-03T00:00:57Z")

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Baud rate used is 4800

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<div class="post-metadata">

**Author:** ![W0BNC](https://forum.digirig.net/user_avatar/forum.digirig.net/w0bnc/32/27_2.png) [@W0BNC](https://forum.digirig.net/u/W0BNC)\
**Post date:** [August 3, 2022, 6:57pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/11 "2022-08-03T18:57:04Z")

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Thank you both for everything!!

Denis - I think I found the problem. I built my cables from the link to your page I posted above, they both use only a TRS. Granted, that page is over a year old now, and I don’t even remember if I had a Rev 1.5 or 1.6 at the time. I see now that you use a TRRS, and include pin 4 which is… PTT! 😁 So it would seem that I need to rebuild the audio cable.

I will get that done soon and update this thread.

Thanks again both of you!  
Bob  
W0BNC

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<div class="post-metadata">

**Author:** ![W0BNC](https://forum.digirig.net/user_avatar/forum.digirig.net/w0bnc/32/27_2.png) [@W0BNC](https://forum.digirig.net/u/W0BNC)\
**Post date:** [August 3, 2022, 8:34pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/12 "2022-08-03T20:34:49Z")

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> Blockquote Rev 1.5 should use TRS cables with PTT via CAT  
> Info for these cables can be found [here](https://digirig.net/yaesu-ft-8xx-cables-build/).

I missed this part. So the cables I made a little over a year ago “should” work with the 1.5. I will get the 1.5 one out and try it with the cables I have made. If that don’t work, I’ll make another cable with a TRRS using pin 4, and use the 1.9.

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<div class="post-metadata">

**Author:** ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)\
**Post date:** [August 3, 2022, 8:38pm UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/13 "2022-08-03T20:38:59Z")

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TRS cables should work with your 1.5 with full functionality: audio + serial CAT. Please post a follow up if you run into any issues.

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<div class="post-metadata">

**Author:** ![W0BNC](https://forum.digirig.net/user_avatar/forum.digirig.net/w0bnc/32/27_2.png) [@W0BNC](https://forum.digirig.net/u/W0BNC)\
**Post date:** [August 4, 2022, 3:54am UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/14 "2022-08-04T03:54:38Z")

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Still no luck tonight. Although I did figure out what I thought was a 1.5 is really a 1.3. Not sure if that affects anything or not. I have so many of these lol. A 1.3, 1.5, 1.6, and a 1.9. I found the 1.5, I’ll try it again tomorrow.

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**Author:** ![Ray](https://forum.digirig.net/letter_avatar_proxy/v4/letter/r/e9a140/32.png) [@Ray](https://forum.digirig.net/u/Ray)\
**Post date:** [August 8, 2022, 12:04am UTC](https://forum.digirig.net/t/homebrew-cable-for-yaesu-ft-857d/26/15 "2022-08-08T00:04:25Z")

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A while ago I posted a detailed how to on QRZ (With diagrams, photos, pc setup etc) This predated 1.9 for sure.

Perhaps it might help you.

73 de nc9p

[https://forums.qrz.com/index.php?threads/digirig-shack.771408/#post-5913340](https://forums.qrz.com/index.php?threads/digirig-shack.771408/#post-5913340)
