UNCLASSIFIED (U)

5 FAH-2 H-720

HIGH FREQUENCY (HF)

(CT:TEL-60;   07-26-2017)
(Office of Origin:  IRM/FO/ITI/LWS/RPB)

5 FAH-2 H-721  High-Frequency BROADCAST RANGE

(CT:TEL-12;   03-08-2005)

The high-frequency (HF) networks provide long-distance communication links to officials traveling in country, to Department missions in neighboring countries, and to military aircraft or ships in the vicinity.

5 FAH-2 H-722  NET OPERATING INSTRUCTIONS

(CT:TEL-60;   07-26-2017)

The Radio Programs Branch (IRM/FO/ITI/LWS/RPB) drafts and distributes net operating instructions (NOIs) for operating and programming HF-radio equipment used in a defined network within the regional information management centers (RIMC’s) geographic area of responsibility.  NOIs contain, but are not limited to, the following information:

(1)  Primary and secondary frequencies for establishing contact with other Department missions;

(2)  Department Federal Communications Commission (FCC) call signs for Department network participants;

(3)  Network configuration information; and

(4)  Instructions for conducting official tests.

Specific information in the NOI will vary according to geographic location.

5 FAH-2 H-723  OPERATIONAL TESTING

(CT:TEL-60;   07-26-2017)

a. To ensure the operational readiness of all HF equipment and the competence of IRM radio operators, IRM personnel must test HF-radio equipment weekly and officially record the results as directed in the NOI.  Consult the RIMC if equipment fails or if personnel require additional training.  Information programs center (IPC) personnel should maintain documentation of the testing schedule and unique post circumstances affecting radio operations.

b. Those Department organizations that have off-site HF equipment or HF-mobile radios must test them on a monthly basis.

5 FAH-2 H-724  NETWORK CONTROL STATION

(CT:TEL-60;   07-26-2017)

The RIMC designates one IPC to act as the network control station for other designated posts within contact range.  The network control performs the following tasks:

(1)  Monitors network frequencies for radio communiqués from the RIMC, other posts, or military activities;

(2)  Acts as radio relay to establish contact between other posts in the network;

(3)  Coordinates weekly tests with posts within its network;

(4)  Reports results of weekly tests on the HF reporting SharePoint site; and

(5)  Provides phone-patch support as required during emergency.

5 FAH-2 H-725  REPORTING REQUIREMENTS

(CT:TEL-60;   07-26-2017)

a. The information programs center (IPC) at the network control station records the receive signal quality at network control and each subscriber station and posts the results to the HF reporting SharePoint page.  Any reporting that references degraded station or network capabilities (broken radios, defective antennas, lack of staffing, etc.) must be sent via a separate telegram that is Sensitive But Unclassified (SBU).  The telegram should explain if any post was not able to respond and what actions were taken to attempt radio contact.

b. Address the telegram to the Sec State Wash DC, the RIMC, and network participants.  The action addressees will most often be Department for IRM/FO/ITI/LWS/RPB and the RIMC but other addressees may be asked to take action to correct deficiencies discovered during the test.  Include passing instructions for Department for IRM/FO/ITI/LWS/RPB, IRM/FO/ITI, POST FOR IPC, and the regional bureau.  List ACOA first on the TAGS line followed by KRIM, AMTC, KRIM, and KWIR.

5 FAH-2 H-726  FEDERAL COMMUNICATIONS COMMISSION CALL SIGNS

(CT:TEL-60;   07-26-2017)

a. Call signs assigned to Department of State stations by the Federal Communications Commission (FCC) may not be reassigned laterally in the field without prior approval by IRM/FO/ITI/LWS/RPB.

b. Using an FCC call sign in a spectrum assigned to the Amateur Radio Services or acknowledging a request for reception confirmations (QSLs) from amateur or short-wave radio operators is prohibited.

5 FAH-2 H-727  THROUGH H-729 UNASSIGNED

UNCLASSIFIED (U)