Condition: Refurbished

Seller refurbished and calibrated Keysight N4694A ECal module, tested and fully functional. Cosmetic imperfections are present but do not affect performance. Calibrated until February 2026.

Included in the sale:
• Keysight N4694A 1.85 mm 2-port Electronic Calibration (ECal) module (Option 00F)
• Two Keysight torque wrenches (sealed)
• Hook spanner (08513-20014)
• Open-ended 9/16 in & 1/2 in spanner
• White cable
• Wooden storage/carry case with foam insert

The Keysight N4694A is a 2-port 1.85 mm Electronic Calibration (ECal) module designed for use with Keysight PNA-series vector network analyzers (VNAs). ECal technology provides a single-connection calibration process using fully traceable electronic impedance standards, significantly reducing operator error, minimising connector wear, and improving calibration speed and repeatability compared to traditional mechanical calibration kits.

Each N4694A module stores its fully characterised S-parameter data internally, ensuring consistent and accurate calibration results independent of the host VNA. Option 00F designates the standard 2-port configuration for this module.

Frequency Range: 10 MHz to 67 GHz
Connector Type: 1.85 mm (male)
Number of Ports: 2
Calibration Type: Electronic Calibration (ECal)
Compatibility: Keysight PNA-series VNAs
Impedance Standards: Fully traceable electronic
Data Storage: Internal S-parameter characterisation data
Option: 00F (2-port)

The N4694A is well suited to millimetre-wave and high-frequency RF applications requiring accurate, repeatable, and efficient VNA calibration up to 67 GHz.

Keysight N4690 Series ECal Modules Data Sheet: Download PDF

Keysight N4690 Series ECal Modules User's Guide: Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.