Check the listing for details. LTDZ_ 35M-4400M USB Spectrum Analyzer w/ Tracking Source Module Signal Source. Condition: New. Listed at 49.05 USD. Description LTDZ_35M-4400M USB Spectrum Analyzer with Tracking Source Module Spectrum Signal Source Features: - 35-4400M spectrum analyzer - 35-4400M signal source - On-board tracking source - Serial communications - Computer-side software: WinNWT4 - Attribute: RF frequency domain analysis tool - Interface: USB - Power supply: USB - Standby current: ≤100mA - Sweep current: ≤350mA - Sweep speed: ≥800 points / sec - Sweep dynamic log ratio: > 50dB - Point frequency or sweep output power: ≈0 dBm - Input detection: ≤10dbm - Background: ≈ -60dBm - Computer operating system: For Win XP, Win7, Win10 - Material: PCB Package Included: - 1 x Spectrum Analyzer Shipping Terms - For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding. Custom Duties & Taxes 1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility. 2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.