Description
Struggling with stuck PTT on your KV4P‑HT during transmission? The JNCRADIO JCHOKE‑9SN is engineered to directly address this issue by suppressing radio frequency interference (RFI) traveling along USB‑C cables—preventing your transceiver from inadvertently locking in transmit mode during RF feedback events.
Eliminates common-mode RF feedback that causes PTT lock-up during transmission—an issue widely reported by ham radio users connecting to smartphones via USB-C.
No need to cut or unplug cables—just loop your USB cable once and snap it on.

The 9mm inner diameter fits one loop of standard USB-C cable (3–5 mm OD), improving RFI suppression efficiency.

Featuring a 9 mm inner diameter core, the choke accommodates a one-loop wrap of standard USB‑C cable, maximizing common‑mode noise suppression. Its snap‑on design allows for quick, tool‑free installation—just loop your cable and clamp the core.
Specification
| Model | JCHOKE-9SN |
| Type | Snap-On Ferrite Choke |
| Inner Diameter | 9 mm |
| Installation Method | Loop-and-Clamp |
| Target Device | KV4P-HT |
| Function | USB Cable RFI Suppression, prevents stuck PTT |
| Color | Black |
| Reusable | Yes |
Part List
2 x JCHOKE-9SN








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