Vintage 1966-10

Wideband Vertical Amplifier And Samplers

Everything to the right of the colored line in the block diagram of Fig. 4 is identical in both the 1-GHz vertical amplifier and the wideband vertical amplifier. Sensitivities, display modes, recorder outputs, and internal operation are the same for both. The wideband unit, however, has no built-in delay lines and, instead of probes, uses one of the three dual-channel feed-through samplers. Fig. 5 is a photograph of the wideband unit installed in the main frame, and Fig. 6 is a block diagram of...

Summary Of Some Performance Characteristics Of A Large Sample Of Cesiumbeam Frequency Standards

Compact 16-in cesium-beam resonator, Varian Associates BLR-3, being installed in hp- Model 5060A Portable Cesium-Beam Frequency Standard. Resonator is world's shortest in a commercially available standard, was especially developed by Varian Associates for use in the -hp standard. Fig. 2. Flying Clock No. 9, based on the -hp- portable cesium standard, arrives at Oslo, Norway, during 1966 time-synchronization trip. Clock was accompanied by Ronald C. Hyatt c. of -hp- Frequency and Time...

Ultrafast Triggering And Ultraresolution

Pulses 70 mV amplitude for pulses 2 ns or wider for jitter less than 20 ps. CW 50 mV amplitude from 200 Hz to 300 MHz increasing to 400 mV at 1 GHz for jitter less than 1 of input signal period -f 10 ps. External Same as 1424A, except low end of CW triggering range is 200 Hz in Automatic and Level. 50i ac coupled 2.2 jiF . Slope Same as 1424A. Jitter Same as 1424A. Range 15 ranges, 10 ns cm to 500 is cm. Delay Time Continuously variable from 50 ns to 5 ms. SWEEP FUNCTIONS Main sweep, delaying...

An Ultrawideband Oscilloscope Based On An Advanced Sampling Device

The state of the oscilloscope art has taken a significant forward step with the development of a new oscilloscope that operates from DC to 1 2.4 GHz and displays signals as small as 1 millivolt. Sampling oscilloscopes have a combination of wide bandwidth and high sensitivity that has never been matched by any real-time oscilloscope. This is because, up to now at least, it has been much easier to acquire, amplify, and display a narrow sample of a high-frequency repetitive waveform than to...

New Nbs Laboratories

The National Bureau of Standards will dedicate its new laboratory complex at Gaithers-burg, Md. on November 15. This 565-acre site, 20 miles from the old NBS location in the District of Columbia presently contains seven general-purpose laboratories connected by all-weather passageways. Five more laboratories are to be constructed in the future for specialized uses. The laboratory buildings are dominated by an 11-story administration building which houses the Director and his staff. Included on...

Table I Capabilities Of New Sampling Plugins For hp Model A And A Oscilloscopes

Vertical Bandwidth Rise Time Sensitivity 1410A 50 .' Inputs* or High-Z Probes Automatic to 500 MHz, Internal- or External Level Select to 1 GHz, Internal- or External (CW to 5 GHz, External) 1410A 50'. Inputs-or High-Z Probes Automatic to 500 MHz, Internal- or External Level Select to 1 GHz, Internal or External Automatic to 500 MHz Level Select to 1 GHz (CW to 5 GHz) Automatic to 500 MHz Level Select to 1 GHz (CW to 18 GHz with countdown) Automatic to 500 MHz Level Select to 1 GHz (CW to 5...

Intrinsic Reproducibility

Intrinsic reproducibility is the degree to which an oscillator will reproduce a given frequency without the need for calibrating adjustments, i.e., comparisons with a standard, either during manufacture or afterward. This quality is not a characteristic of the aiomic resonance, which always has the same frequency, but of the design of the oscillator which makes use of the resonance. A device which has this quality can be built and aligned with out reference to any other standard, and will...