FLEX-6400 FLEX-6400M | FlexRadio

FlexRadio » FLEX-6400 / M — Price & Specifications

HF/50 MHz direct sampling transceiver, PC controlled or stand-alone with high resolution touchscreen display and ergonomic controls to deliver a high performance SDR with a traditional radio interface. Two independent receivers, reciprocal mixing dynamic range 116 dB at 2 KHz offset, 100 Watts output power. Ideated in USA, year of introduction 2018.

Reference market : ham-radio

General :
Frequency coverage RX 0.0300 ~ 54.0000 MHz
TX [1] 1.8 MHz band
3.6 MHz band
5.3 MHz band
7.0 MHz band
10 MHz band
14 MHz band
18 MHz band
21 MHz band
24 MHz band
28 MHz band
50 MHz band
Modulation mode CW / LSB / USB / FSK / AM / FM
Tuning step 1 Hz min
Receiver :
A/D conversion Freq. 122.88 Msps
Res. 16 Bit
RF preamplifier 8 / 16 / 24 and 32 dB
RF attenuator 8 dB
Reciprocal Mixing Dynamic Range 110 dB (1 KHz spaced signals)
116 dB (2 KHz spaced signals)
Image and spurious rejection > 80 dB
Frequency stability ± 0.5ppm
± 0.005ppm/24h with GPS unit [2]
Transmitter :
Output power [1] CW, RTTY, SSB, FM ~1 to 100 W
AM ~1 to 25 W
Spurious emission Harmonics < -55 dBc (1.8~29.7 MHz bands)
< -65 dBc (50 MHz band)
D/A conversion Freq. 122.88 Msps
Res. 16 Bit
Carrier suppression (SSB) < -80 dBc
Unwanted sideband suppression (SSB) < -80 dBc
Maximum deviation (FM) ± 2.5 / 5 KHz
Audio response 100-2900 Hz default (variable 50Hz to 10kHz)
Microphone 600Ω nominal (200Ω to 10kΩ)
Antenna tuner [3] Matching impedance range 16.7 to 150Ω (1.8 MHz band)
8.3 to 300Ω (3.6~29.7 MHz bands)
16.7 to 150Ω (50 MHz band)
Minimum operating power 10W (1.8~29.7 MHz bands)
2W (50 MHz band)
Features :
Memory Unlimited memory channels
Display 1 Hz frequency resolution
8-inch 1920 x 1200 WUXGA touch sensitive LCD
Antenna 2 x SO239 50Ω connectors
BNC 50Ω RX only connector
Power supply 13.8VDC (± 15%)
Power consumption 1.7A, RX typ
23A, TX max power
Audio power 21mW for 16-32Ω headphone
2.6Vpp@10kΩ for external speaker
Audio output Jack 3.5 mm headphone
Jack 3.5 mm external speaker
Connections USB x 2
LAN (100/1000BaseT Ethernet)
HDMI (external display)
25-pin Jack (accessories)
Jack 3.5 mm (CW key)
RCA (10 MHz reference input)
RCA (TX Request)
RCA (Remote On)
BNC (XVTR transverter)
SMA (GPS antenna input)
SMA (10 MHz GPSDO reference output)
Mechanical and environmental data :
Operating temperature from 0°C to +50°C
Dimensions 355 (W) x 178 (H) x 305 (D) mm
Weight 4.8kg

[1] The radio are also capable of very low power (0 dBm typ, +10 dBm max) transmit on transverter port output from 100 KHz to 54 MHz
[2] The GPSDO option (GPS locked) unit is request
[3] The ATU is a option

Description :

The FLEX-6400 (PC controlled box) and the FLEX-6400M (stand-alone) offers the latest direct sampling SDR technology for the general HF and 50MHz amateur operator yet they offer great performance for chasing DX and contesting. The FLEX6400M transceiver integrates all "6400" capabilities with a stunning 8-inch WUXGA resolution touchscreen display and ergonomic controls to deliver a very high performance software defined radio with a traditional radio interface. It delivers unmatched band awareness from an integrated display while providing an external connection for a HDMI compatible monitor for maximum spectral visibility. Influenced by top contesters and DXers, its independent dual VFO controls are strategically placed to provide maximum productivity for all types of radio operation. It's completely self contained so just plug it in and operate. No computer or network devices are required. With a PC, laptop, or Mac client you can utilize up to 2 x 7 MHz spectrum & waterfall displays and independent receivers to revolutionize your view of the bands. Its two receivers can be placed, simultaneously, on any band and mode.

FLEX-6400 (left) and FLEX-6400M (right) front panel

FLEX-6400 / M back panel

The transmitter offer 100 Watts output power with additional low-power port for transverter operation, allow both reception and transmission on frequencies from VHF and up not available in the base FLEX6400/M. The automatic antenna tuner unit (ATU) is an matching L-network designed to present a 50Ω, low SWR load to the power amplifier (PA) for efficient RF power transfer on non-resonant antenna systems. The FLEX-6600 / M has an integrated ATU as a standard feature whereas the ATU for the FLEX-6400 is a user installable option. FlexRadio's SmartSDR software offers compatibility across the entire "Signature Series" rig family to deliver continuous leveraged software enhancement. You can also use the latest SmartLink technology to access your radio virtually anywhere from any SmartSDR compatible client, even on iPhone, with only a login and password.

FLEX-6400 price :

We have collected for your convenience the FLEX-6400 FlexRadio sales prices and their trend over time. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price Date Condition
USD 1.999,-- 2020-mar New

FLEX-6400 version

USD 2.999,-- 2020-mar New

FLEX-6400M version, with control console

EUR 2.400,-- 2019-dec New

FLEX-6400 version

EUR 3.400,-- 2019-dec New

FLEX-6400M version, with control console

Review :

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