====== HP 8591A Spectrum Analyzer ======
{{:wiki:tools:hp_8591a_view1.jpg?200|}}

Detect and measure unknown radio signals (eg. car remote, garage opener, IoT)

^ Make & Model       | HP 8591A  |
^ User Manual        | https://www.keysight.com/us/en/assets/9018-06720/technical-specifications/9018-06720.pdf  |
^ Status             | Operational as of 17/03/26 (basic checks only)                           |
^ Training           | Optional                                       |
^ Hackable           | NO                                                              |
^ Usage Restrictions | Anyone                     |
^ Owner              | VHS                                          |
^ If it Breaks       | Post on forums and "broken" sign   |
^ Loan Status        | Owned                  |
^ Arrival Date       | [[https://talk.vanhack.ca/t/vhs-equipment-review-hp8591a-9khz-1-8ghz-spectrum-analyser-keep-for-vhs/6554|July 2017]]                                                                  |
^ Location           | Electronics area, under workbench                                      |
^ Value              | $$$                                                                     |
^ Champion           | See [[tool:compendium_of_champions#tools|Compendium of Champions]]     |

===== Safety =====

Check and respect the input power limits. The input is sensitive and easily damaged.

===== Specifications =====

The HP 8591A are portable spectrum analyzers offer frequency accuracy and a wide range of options for applications that demand higher performance. The 8591A has a frequency range of 9 kHz to 1.8 GHz and amplitude range of -115 to +30dBm.

===== Tutorial =====

https://www.keysight.com/used/rs/en/knowledge/guides/how-to-use-a-spectrum-analyzer

===== Maintenance Log ====

Any maintenance, repairs, relocations, changes, etc to the tool should be logged below with a note, date and who!

^ Note               ^ Date         ^ Who       ^
| Wiki entry created | March 18, 2026 | eigma |