Finisar FTLX8574D3BCL-1D 850nm 10G-E-SR Transceiver Module,Finisar FTLX8574D3BCL-1D 850nm 10G-E-SR Transceiver Module,EFR32XG23 868-915 MHz +20 dBm Radio Board - Silicon Labs,Size 10.5 ZX 6000 '30 Years of Torsion',Got a new toy today. Since I like to design filters and MMIC circuits I've always pined for a Spectrum Analyzer. The HPs I used at places I've worked before retiring were,