User’s and Service Guide HP 11857D 7 mm Test Port Return Cable Set HP Part Number 11857-90014 Supersedes: March 1986 Printed in USA September 1999
Notice. The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
General Information To obtain optimum performance from this cable set, observe these simple precautions: • Flex and straighten the cables as little and seldom as possible. • Make connections carefully to avoid misalignment and connector damage or inaccurate measurements. • Keep the connectors free of dirt and metallic particles. • If you must clean the connectors, try clean compressed air first. Do not use abrasives. With a plastic swab, apply only liquid Freon (trichlorotrifluoroethane) as a solvent.
Figure 1.
Operating Characteristics HP 11857D Standard HP 11857D Option B24 Impedance 50Ω (nominal) 50Ω (nominal) Connectors 7 mm 7 mm Phase Match ≤ 4° (at 2 GHz) n/a Return Loss ≥ 24 dB (300 kHz to 3 GHz) ≥ 24 dB (300 kHz to 3 GHz) Physical Characteristics Length HP 11857D Standard HP 11857D Option B24 61 cm (24 inches) 61 cm (24 inches) 0.91 kg (2 lbs) 1.36 kg (2 lbs) 0.91 kg (2 lbs) 1.
Warranty This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of delivery. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by HP. Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer.
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