(2) Indian HAM Repeaters:
(3) Indian NET frequencies & timings:
(4) Frequency and Band plans:
(5) IARU Band plan (2m):
(1) Important Frequencies:
| Mumbai Air Traffic | 10018 kHz. | |
| Chennai Air Traffic | 10066 kHz. | |
| Standard Time Signal (GMT) | 15000 kHz. | Every half an hour - Tone signal; Every hour - Voice signal. |
| Distress Frequency ( CW) | 500 or 512 kHz. | |
| Distress Freq. (USB) | 2182 kHz. | Marine Distress Signal |
| Distress Freq. (AM) | 121.500 mHz. | Also at 243.000 mHz. |
| Marine Mobile (Telephony) | 156.8 mHz. | |
| Safety (Telephony) | 156.5 mHz. | |
|
(2) Indian HAM Repeaters:
| Chennai | VU2MRR | 145.775 mHz.(-ve) (-600k) | VHF |
| Coimbatore | VU2CBE | 145.750 mHz. (-ve) (-600k) | VHF |
| Banglore | VU2RSB | 145.700 mHz. (-ve) (-600k) | VHF |
| VU2TWO | 145.650 mHz. (-ve) (-600k) | VHF | |
| Cochin | VU2CHN | 145.000 mHz. (-ve) (-600k) | VHF |
| Mumbai | VU2BBB | 145.000 mHz. (+ve) (+600k) | VHF |
| Hydrabad | 144.720 mHz. (+ve) | VHF | |
|
(3) Indian NET frequencies & timings:
| Charminar Net | 40 M | HF | 7080 kHz. | 07:00 | Everyday |
| Air - Net India | 20 M | HF | 14150 kHz. | 07:30 | Everyday |
| Kars Net | 40 M | HF | 7050 kHz. | 21:15 | Everyday |
| EC Net | 80 M | HF | 3695 kHz. | 22:00 | Everyday |
| Medi Net | 40 M | HF | 7070 kHz. | 07:30 | Every Sunday |
| BC DX Net | 40 M | HF | 7050 kHz. | 15:00 | Every Sunday |
| YL Net | 20 M | HF | 14188 kHz. | 18:00 | Every Monday |
| Roar Net | 20 M | HF | 14292 kHz. | 07:30 | Every first Sunday |
| SWL Dx Net | 40 M | HF | 7050 kHz. | 08:30 | Every Sunday |
| YL Dx Net | 20 M | HF | 14242 kHz | Every Thursday | |
| KARL AM Net | 40 M | HF | 7050 kHz. | 08:15 | Everyday |
| Gem Net | 40 M | HF | 7080 kHz. | 22:00 | Everyday |
| OWLS Net | 40 M | HF | 7030 kHz. | 23:00 | Everyday (CW only) |
| Chennai | 2 M | VHF | 145.775 mHz. | 07:00 | Morning Ch# (-600k) |
| 2 M | VHF | 145.500 m Hz. | 21:45 | Good Night Ch# (-600k) | |
| Hydrabad | 2 M | VHF | 145.500 mHz. | 07:30 | Morning Ch# |
| 2 M | VHF | 145.500 mHz. | 21:30 | Evening Ch# | |
| Banglore | 2 M | VHF | 145.700 mHz. | 07:00 | Morning Net (-600k) |
| 2 M | VHF | 145.650 mHz. | 20:40 | Eves Net (-600k) | |
| Coimbatore | 2 M | VHF | 145.800 mHz. | 07:00 | Happy Morning Net (-600k) |
| 2 M | VHF | 145.000 mHz. | 20:30 | Evening Net (-600k) | |
|
(4) Frequency and band plans:
(a) BAND Designation:
| Band 4 | VLF | Very Low Frequency |
| Band 5 | LF | Low Frequency |
| Band 6 | MF | Medium Frequency (MW) |
| Band 7 | HF | High Frequency (SW) |
| Band 8 | VHF | Very High Frequency |
| Band 9 | UHF | Ultra High Frequency |
| Band 10 | SHF | Super High Frequency |
| Band 11 | EHF | Extra High Frequency |
|
(b) Frequency Range:
| Band 4 | VLF | Myriametric Waves | 3 - 30 kHz. | VLW | 30000 - 10000 m |
| Band 5 | LF | Kilometric Waves | 30 - 300 kHz. | LW | 10000 - 1000 m |
| Band 6 | MF | Hectometric Waves | 300 - 3000 kHz. | MW | 1000 - 100 m |
| Band 7 | HF | Decametric Waves | 3 - 30 mHz. | SW | 100 - 10 m |
| Band 8 | VHF | Metric Waves | 30 - 300 mHz. | VSW | 10 - 1 m |
| Band 9 | UHF | Deci Metric Waves | 300 - 3000 mHz. | USW | 1m - 10 cm |
| Band 10 | SHF | Centimetric Waves | 3 - 30 gHz. | SSW | 10 - 1 cm |
| Band 11 | EHF | Milimetric Waves | 30 - 300 gHz. | SSW | 1 - 0.1 cm |
| Band 12 | 300 - 3000gHz. | MicroW | |||
 |
(5) IARU Band plan (2m):
| 144.000 mHz. | to | 144.200 mHz. | CW only |
| 144.200 mHz. | to | 144.500 mHz. | SSB only |
| 144.500 mHz. | to | 144.900 mHz. | All modes (RTTY, SSTV etc.) |
| 144.900 mHz. | to | 145.000 mHz. | Beacons (USA - 144.000 to 144.100 mHz.) |
| 145.000 mHz. | to | 145.200 mHz. | Repeater input |
| 145.200 mHz. | to | 145.600 mHz. | Simplex (in 25kHz steps) |
| 145.600 mHz. | to | 145.800 mHz. | Repeater output |
| 145.800 mHz. | to | 146.000 mHz. | Satellite Communication. |
|
