# ICOM Cable RJ45 Audio

**URL:** <https://forum.digirig.net/t/icom-cable-rj45-audio/10092>\
**Category:** Uncategorized\
**Tags:** hardware\
**Created:** [December 3, 2025, 12:16am UTC](https://forum.digirig.net/t/icom-cable-rj45-audio/10092 "2025-12-03T00:16:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![W9PMZ](https://forum.digirig.net/letter_avatar_proxy/v4/letter/w/8dc957/32.png) [@W9PMZ](https://forum.digirig.net/u/W9PMZ)\
**Post date:** [December 3, 2025, 12:16am UTC](https://forum.digirig.net/t/icom-cable-rj45-audio/10092/1 "2025-12-03T00:16:00Z")

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For the Icom V3500 the audio line is at 8v. Is there a capacitor in the digirig, or does the icom rj45 cable have one built in?

Thanks

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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:** [December 3, 2025, 6:01am UTC](https://forum.digirig.net/t/icom-cable-rj45-audio/10092/2 "2025-12-03T06:01:21Z")

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There are DC decoupling capacitors on both audio lines in all Digirig models:

 ![image](https://forum.digirig.net/uploads/default/original/2X/4/490c1e6f84abb29dbd82700e8552ea1927c9b653.png)