Condition: Used

This Viavi I-STOP 1.2 GHz Stop Reverse Test Probe is in good working condition as pictured. The I-STOP is a specialist field tool used by cable network engineers to locate ingress and noise sources in the reverse (upstream) path of HFC coaxial networks, supporting frequencies up to 1.2 GHz.

Included in the sale:
• Viavi I-STOP 1.2 GHz Stop Reverse Test Probe

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Viavi I-STOP is a stop reverse test probe developed for cable network technicians working on Hybrid Fibre-Coaxial (HFC) networks. It is designed to quickly identify and isolate reverse path noise and ingress sources by allowing the user to insert the probe at any point in the coaxial network and stop the reverse signal at that location. This technique enables rapid fault isolation, significantly reducing the time needed to locate upstream noise sources.

Supporting frequencies up to 1.2 GHz, the I-STOP is compatible with modern full-spectrum and DOCSIS 3.1 network architectures. Its compact and rugged design makes it well suited for field deployment by cable MSOs and network maintenance teams.

Key Specifications:
Frequency Range: Up to 1.2 GHz
Application: Reverse path ingress and noise source location
Network Type: HFC (Hybrid Fibre-Coaxial)
Compatibility: DOCSIS 3.1, full-spectrum capture networks
Form Factor: Handheld test probe
Use Case: Field-based upstream troubleshooting

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.