# Icom IC-718 not communicating with N3FJP **URL:** \ **Category:** Uncategorized\ **Tags:** os-windows, icom-ic-718\ **Created:** [June 26, 2025, 11:11pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891 "2025-06-26T23:11:17Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Gomez](https://forum.digirig.net/letter_avatar_proxy/v4/letter/g/d78d45/32.png) [@Gomez](https://forum.digirig.net/u/Gomez)\ **Post date:** [June 26, 2025, 11:11pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/1 "2025-06-26T23:11:17Z")
I recently acquired an Icom IC-718 and am trying to get it to talk to N3FJP for logging and CAT control. I have a DigiRig Mobile and got the Icom 706 cables in today. The remote port is connected to the serial port and the ACC is connected to the audio port. My settings match what is recommended by N3FJP: Icom 718 Rig Name = Icom Read Frequency Command = FE FE 5E E0 03 FD Read Mode Command = FE FE 5E E0 04 FD Convert To Hex = True Baud Rate = 9600 Parity = None Stop Bits = 1 Data Bits = 8 Power Option = RTS As soon as I start polling the rig it goes into TX mode, I can change the mode and frequency from the N3FJP Rig Interface setup page, but changing anything on the radio does not reflect back to the logging program. I can make the DigiRig work with my Xiegu G90 and BaoFeng HTs, but this has me stumped. I’m sure it’s something simple I’m overlooking but I’m hitting a brick wall at this point. Thanks. ---
**Author:** ![Gomez](https://forum.digirig.net/letter_avatar_proxy/v4/letter/g/d78d45/32.png) [@Gomez](https://forum.digirig.net/u/Gomez)\ **Post date:** [June 26, 2025, 11:14pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/2 "2025-06-26T23:14:00Z")
I neglected to say that the N3FJP does not read the frequency and mode from the radio, even though I can change them from the program. ---
**Author:** ![webmonkey](https://forum.digirig.net/user_avatar/forum.digirig.net/webmonkey/32/2494_2.png) [@webmonkey](https://forum.digirig.net/u/webmonkey)\ **Post date:** [June 27, 2025, 3:07am UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/3 "2025-06-27T03:07:40Z")
Set flow control to none in the remote/cat section of the software. That is toggling rts, which is used to activate ptt. 🙂 Im not familiar with that software but dig around for rts/dtr or flow control settings. Lastly, is your digirig setup for ci-v/icom remote control? If it is setup for xiegu radios, u need to use a stereo to mono adapter on the radio side of the digirig cat/serial/remote control cable. Xiegu=2 wire plus ground for cat Icom=1 wire plus ground for cat/ci-v 🙂 Good luck Kb0wlf ---
**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:** [June 27, 2025, 3:59pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/4 "2025-06-27T15:59:13Z")
> [@Gomez](#): > > I can make the DigiRig work with my Xiegu G90 and BaoFeng HTs If the same Digirig Mobile works for serial CAT control of Xiegu G90 then it is configured for logic levels. For serial control of ICOM radios you need CI-V configuration. More on the subject here: > **[Selecting Digirig Mobile Serial Configuration – digirig](https://digirig.net/selecting-digirig-configuration/)** ---
**Author:** ![Greg56](https://forum.digirig.net/letter_avatar_proxy/v4/letter/g/5e9695/32.png) [@Greg56](https://forum.digirig.net/u/Greg56)\ **Post date:** [June 27, 2025, 4:47pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/5 "2025-06-27T16:47:29Z")
Both of my DigiRigs were logic control, I reworked one for CI-V. I cannot guarentee my work but the continuity tests check out. It will probably have to wait until next week for more testing as I’m neck deep in field day. Thanks for the suggestions, Greg ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [June 28, 2025, 6:06pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/6 "2025-06-28T18:06:02Z")
I am also using a IC-718 with the Digirig. I have the cables going from the 9 pin to the digirig, the USB to usb-c to Macbook. It doesn’t pick up the rig whether in serial or audio. WSJTX and JS8 both “See” the device, the computer “sees” the device, but the apps won’t acknowledge it. I have the radio set to IC-718, Input and Output sound on the computer set to USB Device, and all the settings on the app audio and general set to USB. Any suggested help? ---
**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:** [June 29, 2025, 6:54pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/7 "2025-06-29T18:54:54Z")
@Brawny71 Can you confirm that you are using the Digirig Mobile in CI-V configuration as discussed earlier in this thread? ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [June 29, 2025, 7:24pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/8 "2025-06-29T19:24:23Z")
![IMG_3013](https://forum.digirig.net/uploads/default/original/2X/9/92c674f52decf2f56bd310df22cc1fd14629b425.jpeg) I believe so. ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [June 29, 2025, 7:29pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/9 "2025-06-29T19:29:40Z")
Though I may not fully understand CV-I. I have it connected to the 718 with the 9 pin, connected to the digirig via serial, digirig to Macbook via usb-c ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [June 29, 2025, 7:37pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/10 "2025-06-29T19:37:44Z")
Where is the digirig set up? I only see settings in the WSTX AND JS8 Programs. New guy questions ---
**Author:** ![webmonkey](https://forum.digirig.net/user_avatar/forum.digirig.net/webmonkey/32/2494_2.png) [@webmonkey](https://forum.digirig.net/u/webmonkey)\ **Post date:** [June 29, 2025, 8:11pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/11 "2025-06-29T20:11:45Z")
sorry about that, i didn’t distinguish between ‘software setup’ and hardware ‘setup’ or ‘configuration’. 🙂 the digirig comes configured, in hardware, for the radio/serial requirements you selected. here is the link to the breakdown/explanation article: > **[Selecting Digirig Mobile Serial Configuration – digirig](https://digirig.net/selecting-digirig-configuration/)** so what i was getting at is: what ‘setup/configuration’ did you purchase. if it was logic levels for a xiegu rig, then you need to physically modify the digirig board or slip a stereo to mono adapter inline at the radio end. 🙂 good luck kb0wlf ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [June 29, 2025, 9:43pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/12 "2025-06-29T21:43:27Z")
I went through DX Engineering. Told them what I had and wanted to do. They recommended this and this is what I ordered. [https://www.dxengineering.com/parts/DRG-ICO-MBL-KT#overview](https://www.dxengineering.com/parts/DRG-ICO-MBL-KT#overview) ---
**Author:** ![webmonkey](https://forum.digirig.net/user_avatar/forum.digirig.net/webmonkey/32/2494_2.png) [@webmonkey](https://forum.digirig.net/u/webmonkey)\ **Post date:** [June 30, 2025, 1:13am UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/13 "2025-06-30T01:13:05Z")
@Brawny71 my apologies, i was replying, for the most part to the OP @Gomez concerning using DR configured for xiegu with an icom radio. the icom ‘bundle’ will absolutely work with an icom but i’m going to step back and let @K0TX or @Constrainted split this topic between the two different posting/issues. (i’m just a user with DRs in service on xiegu and icoms) 🙂 kb0wlf ---
**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:** [July 1, 2025, 1:48pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/14 "2025-07-01T13:48:09Z")
> [@Brawny71](#): > > I have it connected to the 718 with the 9 pin, connected to the digirig via serial The compatible cable kit for IC-718 uses 13 pin audio connector and 3.5mm TRS serial connector: > **[Icom IC-706 Digirig Cable Set – digirig](https://digirig.net/product/icom-ic-706-cords-for-digirig-mobile/)** On the transceiver side the connections are as follows: ![image](https://forum.digirig.net/uploads/default/original/2X/a/a93eff23b61274720db2e8c1867387d7dab7b760.jpeg) On the Digirig side the molding on the straight 3.5mm TRRS jacks should match the colors of the sockets. ![image](https://forum.digirig.net/uploads/default/original/2X/c/ca717f1c46004a41b4de96941d94fe92bc6e4ddb.jpeg) ![image](https://forum.digirig.net/uploads/default/original/2X/5/505019d9fb42d223fea8a207800406cef6cea15b.jpeg) ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [July 1, 2025, 2:39pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/15 "2025-07-01T14:39:53Z")
Colors: Duh, 🙄 should have picked up on that! CV-I: that may be the main thing. I’ll check when I get home Thanks!! ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [July 1, 2025, 9:02pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/16 "2025-07-01T21:02:27Z")
Ok, redid my wire plugs like you diagramed (Thank you VERY much). Redid my WSJT set up. Getting the following messages. ![Screenshot 2025-07-01 at 4.53.39 PM](https://forum.digirig.net/uploads/default/original/2X/0/0384564dfe03136b595b5e4e9b767d766ce4647d.jpeg) ![Screenshot 2025-07-01 at 4.52.55 PM](https://forum.digirig.net/uploads/default/original/2X/c/c87c532c9d80acf5f37fe26b2e0b607f7d922c1d.png) ---
**Author:** ![Gomez](https://forum.digirig.net/letter_avatar_proxy/v4/letter/g/d78d45/32.png) [@Gomez](https://forum.digirig.net/u/Gomez)\ **Post date:** [July 1, 2025, 9:04pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/17 "2025-07-01T21:04:12Z")
Thanks to all who have helped. I picked up a stereo to mono adapter and after playing with the settings have it working with the Logic board. The board I attempted to modify may be toast. ☹ I’ll have to get a CI-V board and try that way. 73 and thanks again! ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [July 4, 2025, 4:10pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/18 "2025-07-04T16:10:27Z")
Should I start a new thread? ---
**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:** [July 4, 2025, 9:29pm UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/19 "2025-07-04T21:29:50Z")
There should be an option for Digirig’s serial port. USB is not a valid choice. ![image](https://forum.digirig.net/uploads/default/original/2X/0/0ed36b75a4da9910e9306480d5644fd3b1a4cd91.jpeg) ---
**Author:** ![Brawny71](https://forum.digirig.net/letter_avatar_proxy/v4/letter/b/9f8e36/32.png) [@Brawny71](https://forum.digirig.net/u/Brawny71)\ **Post date:** [July 5, 2025, 1:51am UTC](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891/20 "2025-07-05T01:51:18Z")
Ok, went into the USB settings for the Mac and made progress. Now I get the following: Red when PTT hits, Red on the left scale. WSJTX is controlling the radio fine and I’m picking up stations. But my send… ![Screenshot 2025-07-04 at 8.07.01 PM](https://forum.digirig.net/uploads/default/original/2X/d/d3c682fba5c1ecdcb0c02a9a0ee6ab1fcc52a134.jpeg) ![Screenshot 2025-07-04 at 8.07.20 PM](https://forum.digirig.net/uploads/default/original/2X/4/434dc1c1af6417a874e1f51f6d3105b11cbf23c4.png) [Next page](https://forum.digirig.net/t/icom-ic-718-not-communicating-with-n3fjp/6891.md?page=2)