IFR Enroute Low/High Altitude Symbols

IFR low- and high-altitude enroute chart legends, symbols, examples, and procedures.

R - Receive only 122.1R

Controlling FSS Name - ANDERSON

(T) - Service Volume

Receive & Transmit on 122.35

(T) - Service Volume

Latitude and Longitude

Controlling FSS Name - MACON

FAA aeronautical chart visual associated with “High-enroute VOR box — Cecil 117.9 VQQ (H)” (source page 78). — High-enroute VOR box — Cecil 117.9 VQQ (H) — source page 78.

NAVAID STANDARD SERVICE VOLUME (SSV) CLAS- SIFICATIONS (VL), (T), etc. indicate SSV. See “NAVAID STANDARD SERVICE VOLUME (SSV) CLASSIFICATIONS” on page 66 or the Chart Supplement for SSV Altitude and Range Boundaries. DISTANCE MEASURING EQUIPMENT Facilities that operate in the “Y” mode for DME reception VOICE COMMUNICATIONS VIA NAVAID Voice Transmitted No Voice Transmitted NAVAID SHUTDOWN STATUS PART TIME OR ON-REQUEST (T) (L) (VL) (H) (VH) (DL) (DH) (Y) VHF/UHF LF/MF VHF/UHF LF/MF RADIO AIDS TO NAVIGATION (Continued) Navigation and Communication Boxes - Common Elements AUTOMATED WEATHER BROADCAST SERVICES ASOS/AWOS - Automated Surface Observing Station/Automated Weather Observing Station LATITUDE AND LONGITUDE Latitude and Longitude coordinates are provided for those NAVAIDs that make up part of a route/airway or a holding pattern. All TACAN facilities will include geographic coordinates. VHF/UHF LF/MF LOW ENROUTE HIGH ENROUTE Navigation and Communication Boxes - Examples LOW ENROUTE CHARTS VOR R - Receive only 122.1R Controlling FSS Name - ANDERSON (T) - Service Volume Receive & Transmit on 122.35 (T) - Service Volume Latitude and Longitude Controlling FSS Name - MACON HIGH ENROUTE CHARTS VOR

Source page 79

RADIO AIDS TO NAVIGATION (Continued)

Navigation And Communication Boxes - Examples (Continued)

VOR/DME

No Voice Communications

(Y) Mode DME

R - Receive only 122.1R

Controlling FSS Name - BUFFALO

(AK only) Shadow NAVAID Box

FSS Associated with NAVAID

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