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Summary of Contents for Agilent Technologies 346A
- Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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Page 2: Installation Note
Agilent Technologies Noise Sources: 346A, 346B, N4000A, and N4001A (All Serial Numbers) Installation Note Instructions for Setting Bias Current Document Part Number 00346-90137 Printed in the USA July 2001 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... - Page 3 The information contained in this document is subject to change without notice. Agilent Technologies 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. Agilent Technologies 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.
- Page 4 Agilent Technologies Noise Sources: 346A, 346B, N4000A, and N4001A Agilent Technologies Noise Sources: 346A, 346B, N4000A, and N4001A A. Introduction Due to a change of manufacturer of the noise diodes, adjustment of bias current is now necessary to ensure that the noise source performs within its specified ENR range.
- Page 5 The replacement parts listed in Table 1 are tested in the factory to determine the bias current level necessary to ensure that it meets ENR specification. For the 346A and 346B, bias levels are determined by installing the appropriate resistor value for R7 on the printed circuit board (Figure 1- 00346-60001). The appropriate resistor is supplied with the part.
- Page 6 12. For the 346B, if the ENR is not within specification, refer to the supplied 00346-90024 Installation Note for instructions on how to tune the attenuator to meet the ENR specification at frequencies above 12 GHz. The 346A should not require polyiron tuning.
- Page 7 Agilent Technologies Noise Sources: 346A, 346B, N4000A, and N4001A A.4 N4000A/ N4001A Replacement Noise Cartridge Installation Instructions: 1. Ensure that the cartridge was shipped with a small envelope. 2. Ensure that the value of the current is marked on the envelope (the resistor will not be used).
- Page 8 Agilent Technologies Noise Sources: 346A, 346B, N4000A, and N4001A 4. Reassemble the unit. 5. Using the field calibration software, set the bias current to the original value 6. Perform a preliminary ENR measurement. 7. If the ENR is not meeting specification, use the field calibration software to change the bias setting. Refer to Table 2 for bias current values.
- Page 9 ** For Agilent Internal Reference Only ** Manufacturing Part Number Customer Order Number 00346-90137 Printed in USA July 2001 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
- Page 10 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...