RF Explorer Signal Generator with Blue EVA Case + Blue Protection Boot Frequency range supported: 24 to 6000 MHz, Frequency step/resolution: 1KHz, Stability: 0.5ppm Temperature compensated (0-45C), Backlight for great indoor visibility, SMA 50 ohms connector Programmable Amplitude with included internal programmable attenuator:-40dBm to -30dBm in 3dB steps -10dBm to 0dBm in 3dB steps, Amplitude accuracy: +-0.5dB (normalized) or +-3dB (absolute) Switch measurement point speed &lt; 10ms, Graphics LCD 128x64 pixels, great visibility outdoors