For Parts or Not Working. This item does not function as intended and is not fully operational.
It may be defective, damaged, or missing essential components, requiring repair or servicing. Sold strictly for parts, repair, or refurbishment.
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For Parts or Not Working. This item does not function as intended and is not fully operational.
It may be defective, damaged, or missing essential components, requiring repair or servicing. Sold strictly for parts, repair, or refurbishment.
HP / Agilent 3585A Spectrum Analyzer (20 Hz – 40 MHz)
The HP/Agilent 3585A is a precision low-frequency spectrum analyzer designed for detailed signal analysis, noise evaluation, and RF diagnostics across the 20 Hz to 40 MHz range. Known for its high-resolution performance, it offers narrow resolution bandwidths, excellent dynamic range, and accurate amplitude measurement—making it ideal for audio, low-RF, and communication subsystem testing. Its built-in measurement functions and clear graphical display support precise characterization of harmonics, spurious signals, and spectral components.
Key Specifications
Model: 3585A
Frequency Range: 20 Hz to 40 MHz
Resolution Bandwidth: Ultra-narrow, selectable bandwidth filters
Dynamic Range: High sensitivity for detecting low-level signals
Measurement Modes: Spectrum analysis, amplitude and frequency characterization
Display: Integrated graphical output for spectral visualization
Interface: Standard RF input connectors and remote control capability
Application Class: Low-frequency RF testing, audio analysis, communication subsystem diagnostics
Engineered for stable, high-accuracy performance, the 3585A is well suited for laboratories requiring precise low-frequency spectral analysis and detailed electronic signal evaluation.
Turn on working condition, Flat Line as in the video.
Order processing (packing and handing over to the shipping company) takes up to 3 days, including weekends.
Currently, we ship all items with UPS or DHL in secure packaging and with a tracking number.
Delivery should arrive at the customer's address within 6 business days.
No. We only charge for the item and shipping.
It is the buyer's responsibility to pay any taxes (if applicable) in their country (import tax / customs fees).
Yes, according to the details provided in the order (or upon request), and as required.
Yes. Where we were able to test the item – we did.
In cases where full testing wasn't possible, we note that the item was taken from a working environment or a similar statement.
Unless it is specifically listed as AS-IS or For Parts – in which case no full functionality is guaranteed.
Yes, for 30 days from the date the item is delivered.
If we have stock – we will send a replacement.
Returns are not accepted for reasons such as change of mind, incompatibility, or finding a lower price.
Items listed as AS-IS or For Parts – have no warranty at all.
Many customers ask technical questions, like whether the item will work with their system.
We recommend checking with ChatGPT – it provides excellent answers!