For Sale: Flex 8400 ATU

sancerre17 · September 17

FOR SALE: FlexRadio FLEX-8400ATU — $2,100 Firm + Insured Shipping

FlexRadio FLEX-8400 Signature Series HF/6-meter SDR transceiver with factory internal ATU.

Purchased new in May 2026 from DX Engineering, and in mint condition. The radio operates perfectly, with no cosmetic damage or known issues.

Included:

FLEX-8400 with internal ATU

FHM-3 hand microphone

DC power cable

Ethernet cable

GNSS/GPS antenna

Quick Start Guide

Original packaging and shipping materials

FlexRadio Part Number: FRI-FLEX-8400ATU

Price: $2,100 firm + actual insured shipping to CONUS.

Payment by PayPal Goods & Services. I will absorb the PayPal transaction fee; there are no additional payment fees to the buyer.

The radio will be shipped fully insured with tracking and signature confirmation to the address associated with the PayPal transaction.

Local pickup/meetup in Central Texas is also possible.

I'm pricing the radio for a straightforward sale rather than trying to maximize the last few dollars.

Due to my limited activity on the Flex Community forum, I am unable to post photos here. I have current photos of the radio, accessories, packaging, and SmartSDR operation and will be happy to provide them upon request. My amateur radio callsign (KJ7MZW) and identity can be verified through QRZ.

sancerre17 · September 22

I realized I should probably have left an email address should anyone have questions or wants to see photos.

My email: sancerre17 @ protonmail.com (no spaces, of course)

sancerre17 · September 22

sancerre17 · September 23

Hi,

i have decided to take this off the market, which means i am staying in the Flex community. The reason i sought to sell it was that my current home is "antenna constrained". Rather than selling it, I'll primarily focus on modes that are better with a high noise environment.

Thanks and 73's to you all.

For Sale: Flex 8400 ATU

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