Super High Frequency Systems

Ultra High Frequency Systems

Figure 1-7.Teleprinter patch panels

Information Systems Technician Training Series, Module 4 - Communications Hardware
Page Navigation
6

5. 6. 7. connected to the secure voice equipment, which encrypts the information received. The output of the secure voice equipment is connected to the transmitter transfer switchboard. The transmitter transfer switchboard is used to connect numerous RPUs to any number of transmitters. The output of the patch panel is connected to the transmitter side of the transceiver, which, in turn, is connected to an antenna coupler. Figure 1-6 shows a basic diagram of a UHF receive system. We will next follow the UHF signal path through the receive side of the system. 1. 2. 3. 4. 5. The received signal is picked up by the antenna and connected to the receiver side of the transceiver through the antenna coupler. The output of the receiver is connected to the receiver transfer switchboard. From here, it can be connected to either the nonsecure or the secure voice systems, depending upon the mode of transmission. When a nonsecure signal is received, the output of the receiver transfer switchboard can be connected to the radio set control or a speaker amplifier, or both, depending on the preference of the user. The output of the radio set control is connected to a handset, whereas the output of the speaker amplifier is connected to a speaker. If a secure voice transmission is received, the output of the receiver transfer switchboard is 6. 7. connected to the secure voice equipment, where it is decrypted. The secure voice equipment output is connected to the secure voice matrix. The secure voice matrix performs the same function as the matrix on the transmit system. The secure voice matrix output is connected to the secure remote phone unit. Here, the signal is converted back to its original form. SUPER-HIGH-FREQUENCY SYSTEMS The super-high-frequency (SHF) band (3-30 GHz) is strictly for line-of-sight communications. It is configured much the same as the UHF system. SHF is mainly used for satellite communications. SHF satellite communications is a high-volume system that offers reliable tactical and strategic communications services to U.S. Navy elements ashore and afloat. The system is composed of the terminal segment, consisting of U.S. Navy-operated Earth terminals and mobile terminals. It also includes a portion of the Defense Satellite Communications System (DSCS) satellite segment. Navy Super High Frequency Satellite Communications, NTP 2, Section 1 (C), provides comprehensive coverage of the Navy SHF satellite system. PATCH PANELS Teleprinter patch panels are used for the interconnection and transfer of teleprinter signals aboard ship. In the previous block diagrams two patch panels, one labeled red, the other black, were shown. These are the teleprinter patch panels SB-1210/UG and Figure 1-6.—Ultra-high-frequency receive system. 1-6

Privacy Statement
Press Release
Contact