Agilent/Keysight 491C in Farmingdale, NJ, USA
Used
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Specifications
- Condition
- used
- Cal
- Calibration Available
- As-is
- Unit Sold AS-IS
- Category
- Amplifiers in USA
- Subcategory
- Test & measurement equipment
- Subcategory 2
- Rf, microwave & signal generators
- Listing ID
- 94651271
Description
The HP Model 491C is a broadband linear amplifier that provides signal amplification of at least 30 dB. The Model 491C covers the 2 to 4 Ghz range. This instrument produce at least 1 watt at the output with the application of 1 milliwatt or less at the input.
The Model 491C output can be amplitude modulated. Externally supplied modulation signals are applied to the MOD INPUT jack on the front panel. Since the modulation circuit is dc coupled an external leveler circuit can be connected to the MOD INPUT jack to obtain relatively flat power output across the band.
The instrument requires no tuning and is particularly useful fro signal amplification over a broad band of frequencies. The GAIN control is the only front panel control. It controls RF amplification and average RF power output.
The travelling-wave amplifier tubes (TWT's) used in the Model 491C utilize periodic permanent magnet focusing. They are light weight, compact, and consume less power than previous solenoid focused TWT's.
$2,048 USD