← →
 FLEX-6400 |  FLEX-6400M |  FLEX-6600 |  FLEX-6600M |  FLEX-6700 | |
|---|---|---|---|---|---|
| MSRP | $ 2199 | $ 3299 | $ 4399 | $ 5499 | $ 7499 |
| 100W Transmit Output 160-6m |  | | | | |
| Maximum Simultaneous Panadapter/Waterfalls & Slice Receivers | 2 | 2 | 4 | 4 | 8 |
| Reciprocal Mixing Receiver Dynamic Range | 115 dB | 115 dB | 115 dB | 115 dB | 116 dB |
| ADC Sampling Rate | 122.88 Msps | 122.88 Msps | 245.76 Msps | 245.76 Msps | 245.76 Msps |
| Contest Grade Preselectors | 3rd Order | 3rd Order | 7th Order | 7th Order | 3rd Order |
| Spectrum / Waterfall Maximum Bandwidth | 7 MHz | 7 MHz | 14 MHz | 14 MHz | 14 MHz |
| Automatic Antenna Tuner | OPT | OPT | | | |
| Cableless Digital Modes | | | | | |
| Full Duplex Operation | | | | | |
| Simple Remote over Native WAN | | | | | |
| Maestro, PC, MAC and iPAD Operation | | | | | |
| External 10MHz Reference Input | | | | | |
| Receive Only Inputs including Transverter Ports | 2 | 2 | 4 | 4 | 3 |
| Continuous MARS/CAP TX Coverage | OPT | OPT | OPT | OPT | |
| GPS Disciplined Oscillator Option | OPT | OPT | OPT | OPT | OPT |
| Diversity Reception | | | | ||
| Single Radio SO2R | | | | ||
| Dedicated Balanced Mic Input (XLR/TRS) | | | | ||
| 2 Meter RX/TX (5dBm output power) | | ||||
| Integrated Display Resolution | 1920×1200 | 1920×1200 | |||
| Integrated Display Size | 8 in | 8 in | |||
| Touch screen type | Capacitive | Capacitive | |||
| HDMI Output | | |