EFECTOS NEGATIVOS

7-16. The AN/VRC-100(V) ground radio uses the RT, PA/coupler, and CDU LRUs of the AN/ARC-220 system without modification, within an aluminum-structured, bracketed case. It has a portable, metal case, with a removable top, that provides easy access for removal of LRUs. All controls, and the radio I/O, are located on the front panel. The AN/VRC-100 is intended for use in TOCs, ATC, and vehicular applications such as the high mobility multipurpose wheeled vehicle. Its key features are—

z Full digital signal processing with embedded ALE, EP, and data modem. z Spare card slot in the RT provides for future growth.

z Operates on 28 VDC (and is compatible with 24 VDC vehicular power) or from 115 or 220 volts alternating current (VAC) 50/60 Hz power source.

z PC or laptop connectivity.

z E-mail messaging using local recommended standard-232 interface. z Ability to effectively tune a variety of antennas.

7-17. Table 7-1 lists the three basic configurations of the AN/VRC-100 and Figure 7-5 is an example of an AN/VRC-100(V). Refer to TM 11-5820-1141-12&P for more information on the AN/VRC-100(V) 1/2/3.

Table 7-1. AN/VRC-100 configurations

Configuration Description

AN/VRC-100(V) 1 Consists of three LRUs housed in a metal casing with a power supply and speaker.

AN/VRC-100(V) 2 Consists of the AN/VRC-100(V) 1 mounted in a wheeled vehicle.

AN/VRC-100(V) 3 Consists of the AN/VRC-100(V) 1 with the AS-3791/G broadband antenna and is used at theater level.

Figure 7-5. AN/VRC-100(V) high frequency radio

AN/ARC-231 RADIO SYSTEM

7-18. The AN/ARC-231 (refer to Figure 7-6) is an airborne VHF/UHF LOS and DAMA SATCOM radio system that is also a multiband/multimission, secure anti-jam voice, data and imagery radio set. The RT- 1808 is the primary radio for the AN/ARC-231. One of the key features of the RT 1808 is that it capitalizes on the AN/PSC-5 Spitfire’s expandable modular architecture and permits users to upgrade as new requirements drive new capabilities. The AN/ARC-231 is being used in the A2C2S to provide C2 mission capabilities to corps, division maneuver brigade, or attack helicopter commander’s airborne TAC CP.

7-19. The AN/ARC-231 has the following characteristics and capabilities— z HAVEQUICK I/II and SINCGARS communications modes. z DAMA and non-DAMA SATCOM communications modes. z Frequency ranges of:

„ 30–87.975 MHz VHF FM SINCGARS. „ 108–173.995 MHz VHF AM and VHF FM.

„ 225–399.995 MHz UHF AM HAVEQUICK II/ground air band, UHF

SATCOM band.

„ 403–511.995 MHz UHF FM public service band.

z Embedded COMSEC and TRANSEC keys with transmit and receive OTARs. z 148 preset channels.

z Independent red and black MIL-STD-1553 bus interfaces.

z Embedded MIL-STD-188-184 analog to digital converter and tactical IPs. z SINCGARS SIP and optional ESIP and end of message.

z MIL-STD-188-181B high data rate in both LOS and SATCOM. z 8.33 kHz ATC channelization coverage to 512 Hz.

z Minimal size and weight suitable for rotary and fixed wing applications.

AN/ARC-164(V) 12 ULTRA HIGH FREQUENCY RADIO

7-20. The AN/ARC-164(V) 12 radios are used for air-to-air, air-to-ground and ground-to-air communications. There are three major aircraft configurations of the AN/ARC-164 radio and one ground configuration of the AN/VRC-83(V). The AN/ARC-164(V) 12 RT configurations include a panel mount (RT-1518C), remote control (C-11721), remote mount (RT-1504) (refer to Figure 7-7), and data bus compatible (RT-1614). These radios provide anti-jam, secure communications links for JTF and Army aviation missions. The Army operational forces utilizing these radios are aviation units, air traffic services and Ranger units. It also provides the Army the ability to communicate with USAF, USN and NATO units in the UHF-AM mode which is the communications band for tactical air operations.

7-21. The AN/ARC-164(V) 12 has the following capabilities and characteristics— z Operations in SC or FH mode.

z Frequency range of 225–399.975 MHz. z Capacity of 7,000 channels.

z Embedded ECCM anti-jamming capabilities.

z Voice and data modulated signals with VINSON or VANDAL devices.

7-22. Refer to FM 6-02.771 for more information on HAVEQUICK radios and TM 11-5841-286-13 for information on the AN/ARC-164(V) 12.

Figure 7-7. RT-1504 for an AN/ARC-164(V) 12

AN/VRC-83(V) RADIO SET

7-23. The AN/VRC-83(V) is a two-band VHF AM and UHF AM radio set. The AN/VRC-83(V) is designed for tactical short range ground-to-ground and ground-to-air communication. The AN/VRC-83(V) is ground configuration of the AN/ARC-164, which is described in the next section. The AN/VRC-83(V) can operate in the jam-resistant, ECCM mode or in the NORMAL (non-ECCM) mode and can be used with COMSEC TSEC/KY-57 speech security equipment for secure voice communication.

7-24. The AN/VRC-83(V) is tunable in 25 kHz steps to either one of two frequency bands, VHF (116.000–149.975 MHz with 1360 channels) or UHF (225.000–399.875 MHz with 7000 channels). The AN/VRC-83(V) also has an RF PA to increase the RT transmit power of the set, an audio amplifier, a power supply to regulate the input voltage, a speaker and a handset. The handset is the audio input-output device for the radio set.

7-25. Primary components of the AN/VRC-83(V) consist of: one RT-1319B/URC, radio amplifier AM- 7176, VRC-83 mount, cable assemblies, and a handset. Refer to Figure 7-8 for an example of the AN/VRC-83(V) and TM 11-5820-1149-14&P for more information on radio maintenance.

Figure 7-8. AN/VRC-83 radio set

AN/ARC-186(V) VHF AM/FM RADIO

7-26. The AN/ARC-186(V) provides AM, FM, FM homing and wireless network extension. It is primarily used as an administrative VHF AM/FM radio used to communicate with the ATC. The AN/ARC-186(V) is a LOS radio system with limited range at terrain-flight altitudes but greater range at administrative altitudes normally associated with ATC communications. It can back up the SINCGARS in the same 30–89.975 MHz frequency range but a big disadvantage is that it has no FH mode compatible with SINCGARS and it generally lacks KY-58 interface to provide secure FM communications.

7-27. Battalions typically operate a C2 network, O&I and A&L network all using SINCGARS. Battalions also operate an internal air operations network using HAVEQUICK II. The AN/ARC-186(V) is a secondary means of secure tactical communication to overcome SINCGARS and HAVEQUICK II LOS constraints.

7-28. Even though the AN/ARC-186(V) VHF AM radio is normally used for administrative purposes it may function as a platoon internal net. The battalion TOC may also have access to MSE and SATCOM for communicating with higher headquarters. (Refer to TM 11-5821-318-12 for more information on the AN/ARC-186(V).)

7-29. The AN/ARC-186(V) (refer to Figure 7-9) has the following capabilities— z Secure communications when the radio is employed with the KY-58. z Frequency ranges of:

„ AM transmit/receive: 116–151.975 MHz. „ AM receive only: 108.000–115.975 MHz. „ FM transmit/receive: 30.000–87.975 MHz.

z Channel spacing: 25 kHz.

Chapter 8