The FLEX-6600 SDR tranceiver from FlexRadio 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/ receiver dynamic range, and brick wall filters to give you the advantage in the most competitive DXing or contesting activities while maximizing your fun in casual operations. With a PC, laptop, or Mac client, you can utilize up to four 14 MHz spectrum/waterfall displays and independent band/mode receivers to revolutionize your view of the bands, especially on digital modes. Antenna Tuner is included.
Contest grade filters, ultra-low spurious emissions, and the ability to operate full duplex cross band on two antennas let you transmit on one band while receiving on another — no external equipment required. Even switch to synchronous diversity reception when needed to help you pick out the weak ones in the midst of QRM. By adding FlexRadio’s new Power Genius XL™ LDMOS solid-state amplifier a complete legal limit, all mode SO2R station is now practical with one radio, one amp and only three interconnect cables — half the cost and none of the complexity.
FlexRadio’s industry-leading SmartSDR™ software offers compatibility across the entire FLEX-6000 Signature Series family to deliver continuous leveraged software enhancement. And you can use the latest SmartLink™ technology to access your radio virtually anywhere from any SmartSDR compatible client with only a login and password — even your iPhone.
FLEX-6600 Features
- 100W PEP HF-6M Operation
- All Modes/All Bands
- Integrated Remote Operation With Maestro, PC/Laptop, Mac, iPad®Or iPhone®
- 4 Independent Band / Mode Receivers
- Full Duplex Cross-Band Operation
- True Diversity Reception
- Two Receive-Only Ports
- Two Transverter Ports
- Economical SO2R Solution – (OTSPR) Support In One Radio
- Contest Band Filters: >50 dB Rejection
- Direct Sampling SDR 245.76 Msps – 16 Bit
- 115 dB 2kHz RMDR
- >155 dB Dynamic Range
- Built In Antenna Tuner
- 10 MHz Reference Input
- Optional GPSDO Option for ultra high frequency precision and accuracy
- Optional Continuous MARS/CAP Coverage with Extended Transmit Filter
- Built In Antenna Tuner
Plug & Play Remote*
- No complex setup required
- Operate anywhere, any time
- Use a Maestro, Mac, iPad, iPhone or Laptop
- Across the country or across the world
Anywhere, Anytime, From Any Of These Devices:
With SmartLink and a FLEX-6600, you can operate your radio from almost anywhere! Just take an iPhone, iPad, Mac, Laptop, or Maestro with you and instantly connect to your radio with virtually no setup required.
Best in Class Performance
- 115db RMDR
- No listening fatigue
- Ultra-Low Phase Noise
- Full Break-in QSK CW
- Diversity Reception
- SO2R in a box
- Brick Wall Filters
- Stunning transmit audio
Backed by an Amazing Suite of Software
- SmartSDR for Windows
- SmartSDR for Mac
- SmartSDR for iOS
- SmartSDR CAT
- DAX
*SmartLink Remote Requires SmartSDR V2.x License or Later. Requires an Internet connection.
FLEX-6600 Specifications
Receiver
- 4 Independent Band/Mode Receivers (Max)
- 1 / 2 kHz Reciprocal Mixing Dynamic Range (RMDR): 110/115 dB
- ADC Bits/Sampling Rate: 16/245.76 Msps
- Frequency Coverage: 30 kHz-54 MHz
- Amateur Band Preselectors: 7th Order Contest Bands, 3rd Order Other
- Cable-less Digital Audio (DAX/DAX IQ) Channels: 4/4
- Receive Only Ports (Base/Including XVTR Ports): 2/4
- Full Duplex RX/TX Operation
- Simultaneous Receive on Two Antennas (e.g. 20m & 6m)
- Single Radio SO2R Operation – No External Equipment
- Diversity Reception
 Transmitter
- 160m-6m Transmitter Output: 1-100W(25W AM)
- Harmonic Suppression (Typ): < -60 dBc
- Transverter Ports: 2
- Transverter Frequency Coverage/Power: 100 kHz – 54 MHz/0 to +10 dBm
- Integrated Automatic Antenna Tuner Range: 3:1 SWR
- Continuous MARS/CAP Coverage Optional
 General
- Modes1 SSB, CW, AM, SAM, FM, RTTY, DIGITAL
- Integrated Remote Operation
- Maestro, PC, MAC, iPhone, & iPad Client Options
- Frequency Stability: (0C – 50C) 0.5ppm (TCXO)
- GPS Disciplined Oscillator: Optional 5 x 10-12 Over 24 Hours
- External 10MHz Reference Input
- Power Supply Requirements: 13.8 VCDC +/- 15% (14 VDC Nom)
- Dimensions: 6.74″H (17.1 cm) x 14″W (35.6 cm) x 13.25″D (33.7 cm)
1. RTTY and other digital modes use 3rd party software over DAX channels.
FLEX-6600 Whats in the Box
- FLEX-6600
- FHM-3 Hand Mic
- DC Power Cable
- Ethernet Cable
- Quick Start Guide
Want to know even more?
Raf SP9VFD –
I had a few Flex transceivers in the past: SDR1000 + Edirol FA66 Firewire sound card, FLEX-1500, and FLEX-3000. The last one I’ve had the longest of all. I also had a SunSDR2 PRO for a few months (purchased in your shop). It was a nice, small SDR rig, but the FLEX-6600 is ahead with great hardware solutions and software: SmartSDR, virtual COMs, DAX, and SmartLink.
I’m not an HF contester, my major interest is Moonbounce. Currently, I’m active in EME on 70cm to 13cm with a homemade 6.4m dish. Recently, I obtained a 3m solid dish for EME operations on 6cm/3cm. The biggest advantage of the FLEX-6600 for me is its transverter operation support. With two independent transverter ports and two Spectrum Capture Units, it offers great capabilities for simultaneous operations on 1296MHz and 10GHz. The new microwave transverter modules from DB6NT can switch the IF to 28MHz and 50MHz. SmartSDR software is very useful for TRV operations.
My first impression is that my new FLEX-6600 is simply amazing!
73!
Raf SP9VFD –