7. YTO Adjustment

7. YTO Adjustment

Assembly Adjusted

Al4 Frequency Control Assembly

Related Performance Tests

Frequency Span Accuracy

Frequency Readout Accuracy and Frequency Count Marker Accuracy

Description

The YTO main coil adjustments are made with the phase-lock loops disabled. The YTO endpoints are adjusted to bring these points within the capture range of the main loop. The YTO FM coil is adjusted to place the 300 MHz CAL OUTPUT signal at the center vertical graticule in a 20 MHz span.

FREQUENCY

COUNTERSPECTRUM ANALYZER

A l 4 F R E Q C O N T R O

S K 1 9

A l 5 R F

Figure 2-10. YTO Adjustment Setup

Equipment

Microwave Frequency Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 5343A Option 001

Adapters

Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1250-1476 Type N (f) to APC 3.5 (f) (Option 026 only). . . . . . . . . . . . . . . . . . . . . . . . . .1250-1745 APC 3.5 (f) to APC 3.5 (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5061-5311

Cables

BNC,122cm(48in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 10503A SMA,61cm(24in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...8120-1578

Adjustment Procedures 2-37