Radio Shack DX-398 Owner's Manual

36Aircraft FrequenciesAircraft on international routes some-times use SW. Most transmissions arein SSB, although you can still hearsome MW transmissions. Here aresome bands where you might hear air-craft communications.4,650–4,750 kHz6,545–6,765 kHz8,815–9,040 kHz11,175–11,400 kHz13,200–13,360 kHz15,010–15,100 kHz17,900–18,030 kHzShips and Coastal StationFrequenciesMost transmissions from ships andcoastal stations are in SSB and CW.You can hear these transmissions inthe following bands.2,000–2,300 kHz*4,063–4,139 kHz4,361–4,438 kHz8,195–8,181 kHz12,330–12,420 kHz13,107–13,200 kHz16,460–16,565 kHz* The Coast Guard and small boatsuse this band, with 2,182 kHz set asideas the international distress and emer-gency channel.Time Standard FrequenciesThe following frequencies announcethe exact time of day at specified inter-vals.WWV in Fort Collins, Colorado:2,500 kHz5,000 kHz10,000 kHz15,000 kHz20,000 kHzCHU in Canada: 7,335 kHzV N G in A u s t r a l ia :4,50 0 an d 12,000 kHzLongwave BandThe 150–519 kHz range is known asthe longwave band. Most stations inthis range serve as beacons for aircraftand marine navigation by continuouslytransmitting their call letters. Recep-tion for this range is best between 6:00PM and midnight (your time).Some ships also use this range, with500 kHz set aside as an internationaldistress and emergency station.Most stations in this range use CW(Morse code), although some use AMvoice transmission for weather broad-casts.