Tracor 599K Converter
Manufacturer:
Model:
599K
Date:
1978
Category:
Group:
Description:
MSK Converter

Information

Some or all of the Navy VLF transmitters may at any time be using a form of code known as MSK (minimum-shift-keying). This is a type of frequency-shift-keying in which the bit frequency is equal to twice the difference frequency. In consequence, if a bit is transmitted at frequency #1, then one bit at frequency #2, and a third bit at frequency #1 again, the phase of frequency #1 during the third bit will differ by 180° from what it was during the first bit. Therefore, there is no coherent "carrier" at either of the two frequencies. By a process of frequency doubling, those transmissions at zero phase and those at 180° are restored to equal phase at the second harmonic frequency. Phase tracking of the 2nd harmonic with a VLF tracking receiver is then possible. INSTALLATION

show more

User Manual with schematics
Manual type:
User Manual with schematics
Pages:
17
Size:
1.48 Mbytes (1548192 Bytes)
Language:
english
Revision:
Manual ID:
79384 D
Date:
1978 09 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2019 10 05
MD5:
e30cc675cc664717dbbebeb8748fe6f7
Downloads:
588

Information

Introduction 1 Installation 1 Operation With Strong VLF Signal 1 Use of Notch In Receiving Weaker Signal When Strong Local Signal Interferes 2 Theory of Operation 3 Antenna Coupler 3 List of Replaceable Parts 5 Federal Supply Code for Manufacturers (FSCM) 9 Schematic Diagrams Figure 1. MSK Converter 599J.K Tracor Drawing No. 79399B 10 Figure 2. Chassis Tracor Drawing No. 19356C 11 Figure 3. Antenna Coupler Tracor Drawing No. 19358C 12

show more