Attachment_12_XCTC_Frequency_Request.pptx

XCTC Frequency Request Briefing

EXPORTABLE COMBAT TRAINING CAPABILITY

(XCTC)

ARMY NATIONAL GUARD TRAINING DIVISION

FOUO

Agenda Purpose Requesting Frequencies Who What When Why UHF Frequency pairs, quantities, spacing, and timing TY-2015 Allocations Final Comments

Provide the who, what and when of requesting radio frequencies to support FY16 XCTC Rotations Provide the XCTC Program Manager with information IOT meet with J-6 personnel To assist in developing a plan to achieve coordinated frequency requests across XCTC exercises To obtain a temporary frequency assignment for all XCTC exercises Purpose

Receiving an approved SFAF in a timely fashion allows time for the frequencies to be programmed into the repeaters and combiners If we can be allocated the same frequencies at multiple locations, we can save money and lower the risk of execution of administrative comms support Summary

Requesting Frequencies Who completes a request?

Each rotation team that is planning a training exercise on a military installation requests frequencies for the 4100 Atlas UHF administration communications system and FlexTrain data network This Network Operations Team Leader typically works through the local or installation frequency manager

What is a frequency request?

A Standard Frequency Action Format (SFAF) is used to request frequencies A frequency request covers Frequency allocations for the Atlas 4100 UHF system 915 MHz Freewave radios 2.4/5.8 ISM band wireless backhaul radios J/F-12 numbers for transmitters Details on the UHF system:

Uses 5 Repeater Sites Each Repeater Site has 5 RF Subscriber Decks and 1 RF Control Deck Each RF Deck takes two Frequencies, one Receive and one Transmit 5*(5 + 1) = 30 pairs A SFAF is submitted after completion of the Main Planning Conf (MPC) @ 180 days before execution Reference: Military Communications – Electronics Board Publication 7 (MCEB Pub. 7)

What

Once the UHF frequencies are assigned, we need to program them into the repeaters and combiners.

This is performed by either a subcontractor or the radio manufacturer in a environmentally/RF controlled environment When frequency changes between rotations occur, we have to re-ship the repeaters and combiners to the subcontractor for subsequent re-tuning If we can get the same frequencies across multiple exercises, we no longer need to ship the repeaters and combiners back and forth, thus saving money and lower the exercise risk Why

UHF portable hand-held transceivers (HTs), mobile transceivers, and repeaters for XCTC admin comm. (non-tactical voice nets) Quantities needed 30 UHF repeater pairs broken down as follows:

44 UHF frequencies IN 380-400MHZ 16 UHF frequencies in 400-420MHZ Spacing Transmit (Tx) – Receive (Rx) Separation: Minimum of 5 MHz separation between any Tx frequency and all Rx frequencies.

UHF Frequency Quantities and Spacing

Frequencies Allocations for TY 2015 in support of XCTC:

XCTC 15-01 – Camp Ripley MN: 24 Pairs XCTC 15-02 – Fort Chaffee AR: 26 pairs XCTC 15-03 – Fort Sill OK: 20 Pairs XCTC 15-04 – Fort Drum NY: 24 Pairs XCTC 15-05 – Camp Shelby MS: 20 Pairs XCTC 15-06 – Camp Grayling MI: 24 Pairs

We were unable to use the full capability in TY15 due to limited allocations

2015 UHF Frequency Allocations image2.jpeg image3.png image4.jpeg image1.png