FlexRadio Flex-6400
HF Transceivers
Current used market price and listings for sale — updated daily from 7 active listings across European marketplaces.
About this radio
The Flex-6400 is part of FlexRadio's second-generation 'M' series, introduced in 2018 alongside the 6600M as a refresh of the original SignatureCXA line. It's a 100W software-defined HF/6m transceiver with a single receive slice and an improved ADC over the first-generation 6300, plus a rear-panel touchscreen-ready control head option. Positioned as the budget model of the M series, it's aimed at operators who want current-generation Flex receiver performance without paying for the dual-receive capability of the 6600M or 6700.
Median Price (last 90 days)
$1,424
-1.8%
Based on 6 listings
Typical Range (P25–P75)
$1,300
–
$1,783
Lowest Listed
$1,225
Highest Listed
$2,675
Price History
— Median price
▪ P25–P75 range
Current Listings 7
| Title | Price | Source | Date | Callsign |
|---|---|---|---|---|
| Flex 6400 100W HF Transceiver with ATU | $1,499 | QTH | 2026-10-29 | — |
| Flex 6400 with extras | $1,225 | QTH | 2026-10-29 | L |
| FS: Flex-6400 with ATU | $1,300 | QTH | 2026-10-16 | — |
| RadioFLEX | 10,500 zł | QRZPL | 2026-10-03 | — |
| FLEX6400 sprzedam | — | QRZPL | 2026-10-01 | — |
| Flex 6400 stan idealny. | 7,000 zł | QRZPL | 2026-09-13 | — |
| FLEX 6400 With ATU and USB VFO | $1,350 | QTH | 2026-08-29 | — |
No current listings found for this model.