FLEX-6400

FLEX-6400 for the Serious Amateur

FLEX-6400  A Real SDR for Every Operator

Both the FLEX-6400™ and FLEX-6400M™ offer the latest direct sampling SDR technology at an economical price for the general HF/6m operator yet they offer excellent performance for chasing DX and contesting.
The FLEX-6400 model is designed for the Ham who wants to operate the radio exclusively as a server from PC, laptop, Maestro, Mac, or iOS clients – whether local or remote.
Both models share the same game changing band awareness, industry leading phase noise performance, brick wall filters, and legendary audio performance to deliver you the most fun across a wide variety of operating styles.
With a PC, laptop, or Mac client you can utilize up to two 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 with instant QSY between VFOs. Digital mode operation is a dream with no sound cards, cables or boxes needed.
The FLEX-6400M places the most used controls right at your fingertips. Controls are labeled for intuitive operation and designed to minimize hand motion for the most common operations.
Occasionally used controls are easily accessible on the large touch screen display bypassing the complexity of multi-function buttons and multi-level menus found on other transceivers.
Like modern smartphones and tablets, capacitive touch control is provided on the large LCD display for intuitive pan, zoom, tune, and menu operation.

FLEX-6400 Feature Highlights

    Native Remote Operation: Using Maestro, PC, Laptop, iPad or iPhone
    SDR Architecture: Direct Sampling
    Reciprocal Mixing Dynamic Range (RMDR): 116dB
    Independent High Performance Receivers: Two (2)
    Maximum Panadapter Bandwidth: 7 MHz
    Radio Control Surfaces: Ergonomic tactile controls with touch screen interface
    Integrated Display: 8-inch 1920x1200 IPS Display
    External Display: 1920x1200 WUXGA via HDMI interface
    Antenna Connectors: SO-239x2, BNC XVTRx1, BNC RX-INx1
    Wideband Frequency Coverage: 30 kHz - 54 MHz
    Transmit Frequency Coverage: 160-6m amateur bands, 100W nominal output
    Transverter IF Frequency Coverage: 100 kHz - 54 MHz
    Full Duplex Operation: Yes
    Digital Audio Exchange (DAX) Channels: Two (2)
    DAX IQ Channels/Bandwidth per Channel (DAXIQ): Two (2)

 Receiver Specifications

    Receiver Architecture: Direct Digital Sampling
    Spectral Capture Units (digitizers): One (1)
    Maximum Slice Receivers: Two (2)
    ADC Resolution: 16-bits
    ADC Sampling Rate: 122.88 Msps
    Wideband Frequency Coverage: 30 kHz - 54 MHz
    DAX IQ Channels / Bandwidth Per Channel: Two (2)
    DAX Audio Channels: Two (2)
    Amateur Band Preselector Coverage: 3rd order
    1/2 kHz Reciprocal Mixing Dynamic Range (RMDR): 110/116 dB

Spectrum/Waterfall Display Specifications

    Maximum High Resolution Spectrum Displays: Two (2)
    Panadapter Bandwidth: 5 kHz - 7 MHz
    Spectrum Dynamic Range (max zoom): > 145 dB
    Spectrum Resolution Bandwidth (min): 5.85 Hz
    Integrated Touch Panel Display Size (diagonal)1: 8" (20.3 cm)
    Integrated Display Resolution1: 1920x1200
    External Display Resolution/Connection1: 1920x1200/HDMI

Transmitter Specifications

    Transmitter Architecture: Direct Digital Up-conversion
    Modulation System: Digital Low Power at Carrier Frequency
    RF Output Power: 1-100W nominal SSB, CW, FM, RTTY, Digital; 1-25W nominal AM
    Amateur Band Coverage at Rated Power Output: 160m – 6m
    Transverter IF Output Power: +0 dBm Typical; +10 dBm max
    Transverter IF Frequency Coverage: 100 kHz - 54 MHz
    DAX Transmit Channel: Yes
    Harmonic Suppression: < -60 dBc typical
    Transmit Bandwidth: Default 100-2900 Hz (Variable 50-10000 Hz)
    Microphone Connector: Pseudo Balanced 1/8" TRS
    Microphone Impedance: 600 Ohms Nominal (200-10kO)

Optional Antenna Tuner Specifications

    Matching Range 80m - 10m: Optional, 8.3 Ohms - 300 Ohms
    Matching Range 160 and 6m: Optional, 16.7 Ohms - 150 Ohms

General Specifications

    USB 2.0 Ports (peripheral control): Two (2)
    Internal 10 MHz Reference Clock Stability: 0.5ppm TCXO (0-50C)
    Emission Modes: USB, LSB, CW, RTTY2, AM, Synchronous AM, FM, NFM, DFM, FreeDV2
    Frequency Resolution: 1 Hz min.
    Antenna Connectors: SO-239x2, BNC XVTRx1, BNC RX-INx1
    Antenna Impedance (w/o tuner): 50 Ohm Unbalanced

Electrical

    Power Supply Requirements: +13.8V DC nominal ±15%
    Current Drain (Receive/Transmit Max): 1.7A / 23A @ 13.8V

Mechanical

    Height: 6.74" (17.1 cm) with feet
    Width: 14.0" (35. cm)
    Depth: 13.25" (33.7 cm)
    Operating Temperature: 0 to +50 degrees C; +32 to +122 degrees F

Options

    Antenna Tuning Unit (ATU); 3:1 SWR
    GPS Disciplined Oscillator; 5x10-12 over 24 hours
    MARS/CAP Coverage Filter Bank
    ThumbDV module for D-Star mode

Specifications subject to change without notice.