1. Features That Are Second to None!
FlexRadio FLEX-5000
Features That Are Second to None!
FlexRadio Systems introduces the FLEX-5000™ family of ultra high performance Software Defined Radio (SDR) transceivers. The FLEX-5000 family builds on the very popular FlexRadio SDR-1000™, and now integrates all I/Q data and hardware control over a single FireWire® (IEEE-1394) connection to a user provided computer. Sound cards and multiple cables are no longer necessary.  Convenience and ease of setup are built right in!

2. Features That Are Second to None!
FlexRadio FLEX-5000A
Features That Are Second to None!
The "workhorse" of the family is the FLEX-5000A.  The same receiver and transmitter are common throughout the entire FLEX-5000 family, so no matter if you have the FLEX-5000A or the top of the line FLEX-5000D™, you still have the same outstanding performance capabilities.
The FLEX-5000 series of radios have receiver performance and transmitter capabilities that are better than the $10,000 radios at a fraction of the price. 
Why spend more money for a traditional radio that doesn't even come close to the FLEX-5000's performance?  It's a "no brainer“ decision!

3. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
The Second Generation of Software Defined Amateur Radio Transceiver
The FLEX-5000 represents the next evolutionary advancement in software defined radio hardware. The FLEX-5000A in combination with PowerSDR results in an amateur radio rivaling the performance and features of radios three times their price.
The BEST Receiver Available. Period!
The results are in, the dust has settled and the performance of the FLEX-5000 is phenomenal. It exceeds the performance of the high dollar radios where it counts most; IMD 2 KHz. You have to hear it to believe it!
No External Sound Cards Required.
The performance of a software defined radio is directly related to the quality and capabilities of the A/D and D/A converters. The FLEX-5000 incorporates all of the A/D processing inside the chassis. In addition to the excellent performance of the A/D converter’s specifications, you no longer have to worry about interfacing an external sound card to your computer with all of those extra I/O cables.
Full Duplex Transmit and Receive Capabilities
Designed from the ground up to be a true full duplex radio that can transmit and receive simultaneously. With this capability, the FLEX-5000 is now the ultimate CW rig ever made. For phone use, you can monitor your actual audio that is being transmitted rather than a monitor circuit in the audio chain.

4. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
No More External Computer Required with the FLEX-5000D and the FLEX-5000C
Both the FLEX-5000C and the FLEX-5000D have Intel Core2 Duo processors running Windows XP integrated inside the chassis to provide the ultimate "single box solution" for software defined radios.
Features You Expect in the Best Performing Amateur Radio
What separates a good radio from a great radio starts with its receiver. The FLEX-5000 has receiver and transmitter specifications only available previously in radios costing more than ten thousand dollars! Here are a few other standard FLEX-5000 features you come to expect in a top-end transceiver.
Improved 100 Watt PA
The FLEX-5000A and C models have a new and improved 100 watt AB class power amp that provide a full 100 watts PEP from 160 to 6 meters. The new PA can be variably biased from class A to AB operation for exceptional spectral purity which is ideal for use with legal limit linear power amplifiers.
300 Watt PA Included with the FLEX-5000D
The FLEX-5000D has the extra TX boost you need with full 300 watt HF power amplifier as a standard feature. The output on 6 meters is a respectable 100 watts.

5. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
Single High Speed Firewire® Interface to your Computer
No more parallel or USB connections to your computer for  radio control and DSP operations with PowerSDR. There is only one cable between the FLEX-5000A and your computer; a 400 Mb/s Firewire connection for greater performance and improved setup simplicity.
FlexWire™ Peripheral Interface
With the FLEX-5000, FlexRadio Systems has integrated a new "smart" peripheral interface bus known as FlexWire. This interface will allow you to connect the FLEX-5000 to a variety of external accessories such as rotors, antennas, sequencers and much more. This "smart" interface allows bi-directional communication between the FLEX-5000 and your external peripherals.
Unconditional 30 Day Money Back Guarantee.
We know you are going to love your FLEX-5000, but we are going to take risk out of trying a FLEX FlexRadio Systems offers a 30-day unconditional guarantee on all transceivers products.
Two Year Limited Warranty on ALL FlexRadio Transceivers.
All FLEX-5000 transceivers come with a full two year limited warranty on all parts and materials.  Another "best in the business" advantage from FlexRadio Systems.

6. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
Features and Options
FLEX-5000A
FLEX-5000C
FLEX-5000D
Industry leading 2 KHz spacing, two-tone, third-order dynamic range performance
(IMD 14 MHz)
105 dB
Preamp Off
Top performing 2 KHz spacing third-order intercept point
14 MHz)
+33 dBm
Receiver Frequency Range
(MHz) [optimized for amateur bands]
1.8 – 60 MHz
Transmitter Frequency Range (MHz)
160-6m Amateur Bands
Operating Modes 
USB, LSB, DSB, CWL, CWU, AM, SAM, DRM, DIGIU, DIGIL FM (narrow)

7. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
Features and Options
FLEX-5000A
FLEX-5000C
FLEX-5000D
RF Power Output (PEP)
100W on
160-6m
300W on
160-10m
100W on 6m
Frequency Stability
[after warm up]
± 0.5 ppm
DDS Clock Frequency
500 MHz
Control Interface
External IEEE-1394 FireWire®
Internal IEEE-1394 FireWire®
TX/RX Antenna Connections
(connector type) 
Three SO-239 connectors
Three SO-239 Connectors

8. FLEX-5000™ Transceiver Features at a Glance
Features That Are Second to None!
Features and Options
FLEX-5000A
FLEX-5000C
FLEX-5000D
RX Only Antenna Connections
RX1 (dual BNC)
RX2 (BNC)
Transmitter Antenna Routing Options
ANT1, ANT2 and ANT3
Receiver 1 Antenna Routing Options
ANT1, ANT2, ANT3 and RX1 (loop or input)
Receiver 2 Antenna Routing Options
RX1 and RX2
Physical Dimensions
9.27" W
8.72" H
12.4" D
17.67" W
14.67" D

9. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
Top Performing Narrow-Spaced Two-Tone 3rd Order IMD Dynamic Range at 2 KHz. An Incredible 105 dB on 14 MHz. It is becoming evident that close-in dynamic range is the most useful specification to evaluate a receiver's performance.  Receiving narrow bandwidth signals under crowded band conditions are where good receivers are separated from the best receivers.  Most radio manufacturer's do not publish their 2 KHz two-tone, third order dynamic range values because it is easier to get better looking numbers at 20 KHz that are not that applicable to real world operating conditions.  The FLEX-5000A at 2 KHz spacing, exceeds traditional radio manufacturer's top of the line performance by as much as dB, depending on the model.
Industry Leading Narrow Spaced 3rd Order Intercept Point:  +33 dBm at 2 KHz Tone Spacing.
A lot of focus in recent years has been put on the third order intercept point (IP3) to tout a receivers performance.  This specification is not an actual measured number; it is calculated from two other parameters.  Therefore the IP3 value can vary dramatically based on the tone spacing used to make the measurements. The $10,000 radio manufacturers publish wide-spaced (20 KHz) IP3 values of +40 dBm, but shy away from reporting the "real world" close-in IP3 values.  Why?  This is because performance degrades dramatically inside their expensive roofing filters.
FlexRadio took a different approach – design the receiver to hand large signals at any spacing.  That means that with the FLEX-5000A, as well as its SDR-1000 predecessor, IP3 and thus third order dynamic range will not degrade as tone spacing (even at 100 Hz) is decreased.  In practical terms, that means you can work the weak ones sandwiched between the high powered locals.

10. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
No Sound Card Required! No longer do you have to worry about interfacing a sound card to your PC.  The FLEX-5000 has integrated the A/D and D/A processing hardware built inside the radio.  A high quality 192 KHz 24-bit DAC/ADC with exceptional performance numbers provides the spectral samples for the DSP to process.  The integrated converters also eliminate audio cabling requirements between the transceiver and the PC.
True Full Duplex Operation for Simultaneous Transmit and Receive
The FLEX-5000 is a true full duplex transceiver with independent transmitter and receiver signal paths. This means that you can use the transmitter and receiver simultaneously for monitoring one band while transmitting on another when used with the optional full performance second receiver. With external transverters, full duplex satellite operation is also possible. On phone and digital modes, you can hear and see the spectrum of your actual transmitted signal. Full duplex operation also allows very high speed (<10 ms) T/R switching for CW and TOR digital modes. Additionally, the existing MultiWatch™ capabilities that exist in PowerSDR, which allows multiple receive "windows" within the passband of the DSP is also available for each receiver.  This unparalleled capability provides the most flexible receiver configuration of any amateur radio transceiver at any price!

11. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
True Diversity Receiving with the Second Independent Full-Featured Receiver Using two separate antennas having different orientations with the optional full-featured, second high performance receiver, true diversity reception is a reality. Diversity reception is a well know to "top band" operators for improving the readability at the noise floor.  By locking both receivers to the same frequency you can produce "stereo diversity" which allows your brain to more easily sort the signal from the noise.
FlexWire™ Peripheral Interface Bus
With the introduction of the FLEX-5000 family of transceivers, FlexRadio Systems introduces FlexWire, an intelligent, high speed, bi-directional communications interface that allows PowerSDR to communicate with a host of peripheral devices such as antenna tuners, rotor controllers and band switchers just to name a few. A family of FlexWire peripherals will be forthcoming from the company. Complete specifications and the programming interface will be published to allow home brew and third party add-on products.
Single FireWire® Connection to Your Computer
No longer do you have to use parallel or USB connections to your software defined radio.  To fully realize all of the capabilities of the FLEX-5000 and PowerSDR, a high speed RF shielded interface between the computer and the transceiver is a necessity.  The FLEX-5000 family of transceivers utilize a single FireWire interface to facilitate access to PowerSDR.  FireWire is the optimal technology to interface radio control and I/Q audio with PowerSDR.  It will even allow the future connection of multiple radios to a single PC.

12. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
Redesigned 100 Watt Meter Power Amplifier Completely redesigned from the ground up, the new 100 watt MOSFET push-pull amplifier produces a full 100 watts PEP on 160 to 6 meters.  The PA has excellent spectral characteristics with low IMD and exceptional signal-to-noise (S/N) ratio that produces a phenomenally clean signal.  The new power amp also has the ability to be variably biased for class A or AB operation for use with external linear power amplifiers.
Optimized 11th Order Filters for All Amateur Bands From 160 to 6 Meters
The FLEX-5000 utilizes eleven, individually optimized 11th  order front-end filters to cover each of the ham bands between 160 and 6 meters.  These individually tuned filters minimize potential interference from strong out-of-band signals for ultra quiet receiver performance.
Balanced Microphone Input Makes the FLEX-5000 the Ultimate Phone Rig
Operators are increasingly making a serious effort to get the highest quality audio within the 3 KHz bandwidth of a SSB signal.  The FLEX-5000 easily facilitates interfacing with signal processing equipment by providing a 1/4" TRS balanced audio line input.  Using the balanced line-in with a microphone pre-amplifier will allow you to use a variety of ribbon, dynamic and condenser microphones for the configuration that best fits your operating needs.  Or you can achieve studio quality audio by deploying a complex audio chain with equalizers, compressor/limiters, aural exciters and other effects processors.

13. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
High Stability TCXO for Accurate SSB, VHF+ and Digital Modes Frequency stability is critical when operating VHF+ or HF digital modes.  The FLEX-5000A incorporates a high stability temperature-compensated crystal oscillator (TCXO) which reduces frequency drift to no more than ± 0.5 ppm.  For even greater frequency stability, the FLEX-5000 has a software switched, external BNC connector for connecting a 10 MHz GPS disciplined or other high stability clock source.
Three Software Selectable Antenna Connectors
The FLEX-5000 has three independent SO-239 antenna connectors that can be assigned as transmit and/or receive antennas by operating band and mode. This capability provides the ultimate flexibility in contest situations or hunting for that rare DX by being able to change to a different antenna with a click of the mouse.
Separate Dedicated Receiving Antenna
Not all antennas have perfect reciprocal characteristics, meaning that a good transmitting antenna is not necessarily a good receiving antenna.  This is especially true at long wavelengths of 80 and 160 meters.  Hams that are serious about "top band" operating know the advantage of using a beverage antenna for receiving.  They also know that they are very poor for transmitting.  To over come this dilemma, the FLEX-5000 has a dedicated receiving antenna connector.  In fact, it provides both a RX output and a RX input to allow the use of preselectors and preamps "in-line".

14. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
Transverter Ready – Full Duplex 28 MHz IF The FLEX-5000's incredible receiver is perfect for weak signal VHF+ and WSJT operation as a 28 MHz IF for interfacing to external transverters. The FLEX-5000 will turn your VHF-UHF-microwave setup into the highest performance station around.  Full duplex operation opens the door for satellite communications as well.
Three TX Control Lines for Keying Amplifiers, Transverters, Sequencers and Other Accessories
Keying external amps, sequencers and preamps is always a daunting task, but the FLEX-5000 makes it so easy with three user assignable TX control lines.  Each TX control line can be configured for it own TX delay once the PTT is engaged allowing the control of multiple devices.
No External Calibration Equipment Required
The new FLEX-5000 family incorporates Built-In Test Equipment (BITE).  This includes a swept signal generator, power sampler, and transmitted signal spectrum analyzer.  The radio is capable of testing and calibrating itself.  All models are factory calibrated and aligned to exacting standards.
Audio Line-In and Line-Out Connectors
The FLEX-5000 has consumer level (-10 dbV) line-in and line out RCA type connectors for a variety of uses, such as recording audio from a contest so you can listen to that rare DX to make sure you don't have a busted call or output streaming audio to the web from your FLEX-5000

15. Features That Are Second to None!
FLEX-5000A Features
Features That Are Second to None!
PowerSDR™ and the FLEX-5000A – An Awesome Combination! The FLEX-5000 family, like the ground breaking SDR-1000, comes with full featured PowerSDR software that performs all DSP, modulation, demodulation and control functions for the radio.  PowerSDR is the "brains" behind the FLEX-5000's "brawn".  With the release of the FLEX-5000, PowerSDR has been significantly upgraded and optimized to use a true multi-threaded architecture that greatly improves transmit and receiver performance.  This is most notable when operating full break QSK at 40 WPM where you can actually hear between the characters. Unlike those $10,000 radios where firmware comes out once or twice a year, FlexRadio Systems provides a constant stream of enhancements that incorporate both internal and customer supplied code.  Customers simply download and install free software updates from the FlexRadio website. Its like getting a new radio on a weekly basis.
"I had always dreamed about a radio and interface [PowerSDR™] like this; but never thought it would ever happen. I sometimes catch myself staring at the screen showing the microwave band frequencies thinking “Man this is awesome!” Seems every time I turn around, there is something new coming down the pipe to make the whole setup better.“
Mike, KMØT

16. Features That Are Second to None!
FlexRadio FLEX-5000A
Features That Are Second to None!
Don’t Wait! Order Your FLEX-5000A at the Introductory Low Price of $ Today!