FlexRadio Systems Product Comparison Matrix

Below is a specification and feature comparison for all FlexRadio Systems' transceivers.

Page Last Updated:  Thursday, July 26, 2012
Features and Options   FLEX-1500  FLEX-3000 FLEX-5000A
 Third-order  Dynamic Range
 IMD DR3 @14 MHz
 (2 KHz spacing)
~ 86 dB [1]
(Preamp Off)
~94 dB [1]
(Preamp Off)
~100 dB [1]
(Preamp Off)
 Third-order Intercept Point
 IP3 @14 MHz (2 KHz spacing)
+13 dBm [2]
(Preamp Off)
> +26 dBm [2]
(Preamp Off)
> +39 dBm [2] (Preamp Off)
 Second-order Intercept Point
 IP2 @14.2 MHz (2 KHz spacing)
+71 dBm
(Preamp Off)
+69 dBm
(Preamp Off)
+63 dBm
(Preamp Off)
 Transmit third-order IMD
 products TX IMD @14.2 MHz
 (PEP)
-31 dB
(Worst case)
-31 dB
(Worst case)
-34 dB
(Worst case)
 ADC Dynamic Range
 (A-weighted: 24-bit/48 KHz, 20
 KHz bandwidth)
92 dBA
105 dBA
123 dBA
 DAC Dynamic Range
 (A-weighted: 24-bit/48 KHz, 20
 KHz bandwidth)
100 dBA
108 dBA
108 dBA
 Receiver Frequency Range (MHz)
 [optimized for amateur bands]
0.01 – 54 MHz [7] 0.01 – 65 MHz [7] 0.01 – 65 MHz [7]
 Transmitter Frequency Range
 (MHz)
160-6m
Amateur Bands
(unlocked transverter output)
160-6m
Amateur Bands MARS/CAP capable
160-6m
Amateur Bands MARS/CAP capable
 Operating Modes
USB, LSB, DSB, CW-L, CW-U, AM, SAM, DRM, DIGI-U, DIGI-L, FM (narrow) USB, LSB, DSB, CW-L, CW-U, AM, SAM, DRM, DIGI-U, DIGI-L, FM (narrow) USB, LSB, DSB, CW-L, CW-U, AM, SAM, DRM, DIGI-U, DIGI-L, FM (narrow)
 Maximum HF+6m RF Power
 Output (PEP)
5W (nominal)
(Full Duty Cycle,
5W ICAS)

100W
(Full Duty Cycle, 100W ICAS)
100W
(Full Duty Cycle, 100W ICAS)

 Minimum HF+6m RF Power
 Output (PEP)
~0.05W
1W
1W
 RF Power Output using Dedicated
 Transverter IF Output
~0 dBm
(1.0 mW)
~0 dBm
(1.0 mW)
 Maximum VHF/UHF RF Power
 Output [8] (PEP)
Hardware Defined
(60W max)
 Minimum VHF/UHF RF Power
 Output [8] (PEP)
50 mW
 XO Frequency Stability [9] ± 2.5 ppm ± 1.5 ppm
± 0.5 ppm
 DDS Clock Frequency 384 MHz [6] 499 MHz [6] 500 MHz
 Hardware Control & Audio
 Frequency I/O Interface
USB 1.1
IEEE 1394a
(Firewire 400)
IEEE 1394a
(Firewire 400)
 TX/RX Antenna Connection(s)
 (quantity and connector type)
(1) BNC - 1 mW
(1) BNC - 5 W
(1) BNC (3) SO-239
 Dedicated RX Antenna Connection
 (connector type)
XVRX (BNC)
RX1-IN (BNC) [3]
RX2-IN (BNC) [4]
 Receiver 1 Antenna Routing
 Options
XVRX, PA-ANT ANT1-3
RX1 In
RX1 Loop
 Receiver 2 Antenna Routing
 Options
ANT1 [5]
RX2 In
RX1 Tap
 Enclosure Physical Dimensions
 (inches)
4.0" W
2.0" H
6.0" D
12.25" W
1.75" H
12.25" D
9.25" W
8.7" H
12.40" D
 Enclosure Physical Dimensions
 (cm)
10.2 cm W
5.1 cm H
15.2 cm D
31.1 cm W
  4.4 cm H
31.1 cm D
23.6 cm W
22.1 cm H
31.5 cm D
 Shipping Weight
 (lbs/kg)
2 / 0.9
12 / 5.4 16 / 7.3
 Power Requirements on TX
 Amps @ 13.8  VDC
 (continuous / peak)
1.5 / 2 20 / 25 20 / 25
 Front-end Filter Configuration 4 th order band
pass filters for 160-6m.

Additional low pass filters for 5W PA in the ham bands.
5 th order band pass filters for 80-6m.
7 th order band pass filter for 160m.
Low pass filter for BCB band.
11 th order optimized receive filters for each ham band 160-6m.

Independent transmit filters
 PowerSDR™  DSP/User Interface
 software  compatible
 192 KHz wide, low-latency
 user interactive Panadapter
 spectrum display
 96 KHz wide, low-latency
 user interactive Panadapter
 spectrum display
 48 KHz wide, low-latency
 user interactive Panadapter
 spectrum display
 PanaFall and PanaScope
 Over-Under Spectrum displays
 Multiple Phase, Spectrum and
 Scope displays
 Narrow band, real-time RF
 spectrum analyzer
 Point and click tuning
 (ClickTune™) of signals on
 spectrum display
 Continuously variable RX DSP
 passband filters 
 User definable mode specific RX
 filter banks
 Unlimited user defined TX DSP
 pass band filters
 Unlimited user defined transmit
 profiles
 Multi-attack user configurable
 AGC with variable threshold gain
 ± 9999 Hz RIT and XIT
 capabilities
 2nd virtual receiver in sampled
 passband
 Optimized USB and LSB ASFK for
 digital mode operation
 User configurable DSP Noise
 Reduction (NR)
 User configurable Tracking
 RF Notch (TNF) filter

 User configurable DSP automatic
 notch filter (ANF)
 Two independent DSP Noise
 Blankers
 3-Band or 10-Band Equalizer (EQ)
 for RX and TX
 Downward Expander and Noise
 Gate for phone operation
 VOX for "PTT free" phone
 operation
 Digital Squelch for noise free
 reception
 User adjustable Compander for
 phone operation
 (enhanced compression)
 Record RX audio and
 easy playback over the air
 True binaural audio output
 Integrated multi-mode CW keyer
 Unlimited VFO memories
 Band plan alpha tags associated
 with VFO readout
 Split operation on any mode
 Cross band /cross mode
 operation [4]
 Two independent VFOs
 1 Hz to 10 MHz VFO step size
 for ultra accurate tuning
 Stereo headphone and/or powered
 speaker output jacks
 Unbalanced audio input
 (microphone input)
 Balanced audio input
 (line level input)
 Unbalanced audio line-in &
 line-out (RCA jacks)
 Unbalanced audio line-in &
 line-out  (FlexWire)
 External PTT control
 High volume, internally mounted,
 cooling fan(s)
Not Applicable
 QSK Operation [10]
 High speed T/R switching for
 digital modes
TBD
 Peak reading wattmeter
 Self test & diagnostics with
 built-in signal generator (BITE)
 FlexWire™ connector for future
 peripheral control modules
 Integrated fully automatic
 antenna  tuning unit (ATU)
Optional Upgrade
 Number of user defined RF delayed external
 keying outputs & interface
1 (FlexWire) 1 (RCA)
3 (RCA)
 External frequency reference
 input

 External transverter ready
 through 2 BNCs (TX and RX)
 Full duplex transmit and receive
 on HF+6m and external
 transverters
 Full duplex transmit and receive
 VHF & UHF [8]
 High performance, fully
 independent
internal second
 receiver (RX2)
Optional Upgrade
 Full triplex transmit and receive
 on HF-6m and external
 transverters [4]
 True phase locked diversity
 reception [4]
 Receiver can monitor transmitter
 output
 Receiver in/out signal path loop
 for external dedicated
 pre-selectors, filters and preamps
 Limited manufacturers warranty 1 Year
2 Years
2 Years

Feature Included   Feature Not Available

Note 1:  ARRL Laboratories testing methods, Two-tone DR3, 2 KHz spacing on 14.0 MHz in a 500 Hz bandwidth.
Note 2:  ARRL Laboratories testing methods, IP3, 2 KHz spacing on 14.0 MHz using S5 IM3 measurement
Note 3:  RX1 can be configured as an input only or in/out loop for adding pre-selectors or preamps into the RX signal path.
Note 4:  Requires the optional internal FLEX-5000 second independent receiver (RX2).
Note 5:  Requires the HRFIO board: Assembly Number 34, revision B or greater
Note 6:  Lower frequency clock is multiplied up to higher clock frequency
Note 7:  Customer provided pre-selector or appropriate low pass filter(s) required to eliminate images when used below 1.8 MHz
Note 8:  Requires the optional internal FLEX-5000 VHF/UHF (V/U) upgrade.
Note 9:  Calibration measurements are made after warm up and the XO is calibrated with a known frequency reference, like WWV
Note 10: Full break at high speeds is dependent on the capabilities/configuration of the computer running PowerSDR


All features and specifications are subject to change without notice.

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 ± QRM

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