Thurlby-Thandar-1-3 G Hz-Portable-Spectrum-Analyser-Thurlby-Thandar-PSA1301T-RF-Spectrum-Analyzer-Portable-150k Hz-to-1300 M Hz-Frequency-Range-1k Hz-Resolution-320k Hz-to-1299-85 M Hz-Span-SMA-USB (Universal Serial Bus)-Non-Volatile-Flash-Memory-3-7in-Backlit-TFT-LCD-Display-100-to-240 Vac-Rechargeable-Battery-Pack-Power-Source-96d Bm-Typical-Noise-Floor-at-20d Bm-Reference-Level-Measurement-in-d Bm-or-d B-V-Fully-Adjustable-Centre-Frequency-&-Span-in-1k Hz-Steps-Choice-of-Centre-Plus-Span-or-Start-Plus-Stop-S