- Function and compatibility: simple, practical PC control software that exports touchstone files (snp) for various wireless design and simulation software via PC. - Frequency performance: improved frequency algorithm uses the odd harmonic extension of si5351 to support measuring frequencies up to 900 MHz. - Construction and accuracy: metal shielding reduces external interference and improves measurement accuracy. - Dynamic range by band: in the si5351 direct output 50535-300 MHz range the dynamic range is over 70 dB; extended 300 MHz-600 MHz range over 60 dB; 600 MHz-900 MHz range better than 50 dB. - Use scenarios: 1) Wireless transceiver design and RF testing: generate and analyze signals up to 900 MHz, export snp for design and simulation tools. 2) RF module development for IoT sensors operating up to 900 MHz: verify frequency response and measurement stability with PC control. 3) Lab bench calibration and troubleshooting: PC-controlled source with metal shielding for reduced interference and reliable measurements, with snp export for documentation.