Agilent 1951-10 free download

File name 1951-10.pdf

HEWLETT-PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S VOL 3 No. 2 UBLISHED BY THE HEWLETT-PACKARD COMPANY, 395 PAGE MILL ROAD, PALO ALTO, CALIFORNIA OCTOBER, 1951 Two New Test Sets for SHF Measurements K1CENTLY, two new For example, the Model 624A is especially test sets have been de useful in testing radar transmitters and re veloped for testing SHF re ceivers, and includes a versatile pulser to ceivers and transmitters. facilitate such testing. The Model 62 3B has Basically, these sets are sig been designed for testing SHF relay stations nal generators with added circuitry for meas such as are used in video and communica uring external power levels and external tions work. frequencies. One of the sets, the Model 624A, Since many applications for the sets in covers a range from 8500 to 10,000 mega volve field use, the sets have been kept small cycles. The other set, Model 62 3 B, can be ob and each housed in a convenient carrying tained for any one of six frequency ranges*. case. For production and laboratory appli 5925 -6225 me 6850 -7150 me cations, the panels of the sets have been de 6125 -6425 me 7125 -7425 me signed to fit standard relay racks when the 6575 - 6875 me 7425 - 7725 me instrument case is removed. Both sets are designed for general-purpose Other features that enhance the usability testing such as measuring receiver sensitiv of the sets include: a high power output of ity, receiver selectivity, receiver and trans one milliwatt, an accurate power output mitter tuning, and transmitter power level. control system, and a precision frequency However, the design of