Condition: Used

Tested and fully functional. This Keysight N9398F DC block covers 50 kHz to 50 GHz with 2.4 mm precision coaxial connectors and a 16 V maximum DC working voltage, making it well suited for millimetre-wave and broadband RF applications.

Included in the sale:
• 1x Keysight N9398F DC Block

The Keysight N9398F is a precision broadband DC block designed to apply AC drive signals to a device under test while eliminating any DC voltage or current components. Assembled and tested on Keysight precision network analysers, the N9398F is warranted to meet its full specifications across its entire frequency range. It is commonly used in RF and microwave test setups, between amplifier stages, and in telecommunications applications as a surge arrestor to protect sensitive receiver circuits from instantaneous voltage transients.

Frequency Range: 50 kHz to 50 GHz
Insertion Loss: 0.9 dB (50 kHz to 26.5 GHz); 1.0 dB (26.5 GHz to 50 GHz)
Return Loss: 10 dB (50 kHz to 300 kHz); 15 dB (300 kHz to 50 GHz)
Maximum DC Working Voltage: 16 V
Connector Type: 2.4 mm precision coaxial (male–female)
Impedance: 50 Ohm
Rise Time: 2 ps (typical)
Group Delay: 78 ps (typical)
Weight: 0.1 kg (0.22 lbs)
Temperature Stability: Excellent across operating range

Keysight N9398C/F/G and N9399C/F DC Block Technical Overview (includes full specifications): Download PDF

Keysight N9398C/F/G and N9399C/F DC Block Operating and Service Manual: Download PDF

Keysight N9398C/F/G and N9399C/F DC Block Technical Overview (RS Components mirror): 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.