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VOLMET


VOLMET

VOLMET, or meteorological information for aircraft in flight, is the term applied to a worldwide network of radio stations that broadcast TAF, SIGMET and METAR reports on shortwave frequencies. Reports are sent using automated voice transmissions, in the upper sideband or J3E mode. As the name suggests, pilots on international air routes use these transmissions to determine what procedures to use for descent, approach, and landing, such as a visual approach or an instrument approach and the correct STAR. The actual term comes from the contraction of 2 French words, loosely translated as 'Flying Weather'.

The VOLMET network divides the world into specific regions, and individual VOLMET stations in each region broadcast weather reports for specific groups of air terminals in their region at specific times, coordinating their transmission schedules so as not to interfere with one another. Schedules are determined in intervals of five minutes, with one VOLMET station in each region broadcasting reports for a fixed list of cities in each interval. These schedules repeat every hour.

Use for Propagation

VOLMET Broadcasts are great for propagation measuring, since they have set schedules and frequencies all over the world and can give an clear indication of when propagation is strong or weak in areas.

VOLMET Station Frequencies and Times

ANCHORAGE
2863, 6679, 8828, 13282
H+25-30 & H+55-00 

ANDERSEN
18002 2200-0700Z
13201 2000-0900Z
11176 H24
8967 H24
6738 0700-2200Z
4721 0900-2000Z
H+15 & H+45

ASUNCION
5601 0905-2315Z
10067
H+05
H+15

AUCKLAND
6679 H24
8828 H24
13282 H24
H+20+H-25

BANGKOK
11387 2310-1145Z
6676 H24
H+10-15 & H+40-45

BANGKOK INTL
2965 1210-2245Z
H+10-15 & H+40-45

BEIJING
*13285 0000-1600Z
*8849
**5673
**3458
H+15 - H+20
H+45 - H+50
*Day
**Ngt

BEIRUT
3001 H24
5561 H24
H+15 & H+45

BRAZZAVILLE*
10057 0700-2000Z H+00 & H+25
10057 2000-0700Z H+30 & H+55
*English and French language

CALCUTTA
11387 H24
6676 (0300-1300Z)
2965 (1300-0300Z)
H+05-10 & H+35-40

COMODORO RIVADAVIA RADIO
4675 0900-2400Z
8938 0900-2400Z
H+30 & H+40

CORDOBA RADIO
5475 H24 H+25
8952 H24 H+25

DAMASCUS
2992 H24
5667 H24
8918 H24
13312 H24
H+30 & Special
H+00 & Special
H+00 & Special

EDMONTON MILITARY
6753 2300-1200Z EVEN HRS+20
15035 1200-2300Z, ODD HRS+20

EZEIZA RADIO
2881 H24
5601 H24
11369 H24
H+15 & H+01

GANDER
3485 H24 H+20-25
6604 H24
10051 H24 H+25-30
13270 H24 H+50-55 & H+55-60

HONG KONG
2863 H24 H+15-20
6679 H+45-50
8828
13282

HONOLULU
2863 H24 H+00-05
6679 H24 H+30-35
8828 H24
13282 H24 H+05-10 & H+35-40
H+25-30 & H+55-60

KARACHI
6680 H24
3432 1500-0130Z
10017 0130-1500Z
H+15 & H+45

LAJES
13244 1000-2100Z
8967 H24
6750 H24
H+00 & H+30
8070 1015-2315 H+15

MACDILL
18019 0900-2400Z
13244 0900-2400Z
11246 H24
8993 H24
6750 0001-0900Z
4746 0001-0900Z
H+15 & H+45

MONTEVIDEO
8873 1000-2100Z H+15 AFST CARRASCO INTL.
5451
11387 H24
6676 H24
2965
H+25-30 & H+55-00

NEW YORK
3485 H24
6604 H24
H+00-05
10051 H24
13270 H24 H+05-20 & H+30-50

OAKLAND
2863 H24 H+05-10
6679 H24 H+35-40
8828 H24
13282 H24

RESISTENCIA RADIO
4675 H24 H+20 & H+50
ROYAL AIR FORCE
5450 H24
11253 H24
Broadcast of airfields is twice an hour in slot times
allotted as follows: 00/30, 06/36, 12/42, 18/48, 24/54

SALTA RADIO
5475 H24 H+15 & H+45

SHANNON
3413 SS-SR H+00
8957 H24
5505 H24
13264 SR-SS
H+05, H+10, H+15, H+20, H+30, H+35, H+40, H+45, H+50

SINGAPORE
6676 1230-2230Z
11387 2230-1230Z
H+20 & H+50

SYDNEY
6676 H24
11387 H24
H+00 & H+30

TAIWAN
2880 H24
5010 H+07
12400

TRENTON (MILITARY)
15034 1000-0000Z
6754 2300-1100Z
H+10-15, H+15-20, H+20-25, H+25-30

TOKYO
2863 H24
6679 H+10-15 & H+40-45
8828
13282

YOKOTA
18002 0001-0800Z
13201 2100-1000Z
11236 H24
8967 H24
6738 0800-2400Z
4747 1000-2100Z
H+00 & H+30

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