The 86242C Single-Band Plug-In make extensive use of microelectronics for superior performance and high reliability at an extremely low price. The unit is completely compatible with either the 8620A or 8620B mainframe. Frequency Range: 5.9 to 9.0GHz Maximum Leveled Power: >17 dBm Harmonic/Spurious: >-30 dB/>-60 dB Residual FM: <15 kHz peak