HF Amateur Radio Operations



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Last Discussion: SSB and CW and 160 meters (Morse-Code)

Meter Band Frequency Range and Use
160 meters 1800-2000 kHz ham radio
120 meters 2300-2498 kHz broadcasting
90 meters 3200 to 3400 kHz broadcasting
80 meters 3500 to 4000 kHz ham radio
60 meters 4750 to 4995 kHz broadcasting
49 meters 5950 to 6250 kHz broadcasting
41 meters 7100 to 7300 kHz broadcasting
40 meters 7000 to 7300 kHz ham radio
31 meters 9500 to 9900 kHz broadcasting
30 meters 10100 to 10150 kHz ham radio
25 meters 11650 to 11975 kHz broadcasting
22 meters 13600 to 13800 kHz broadcasting
20 meters 14000 to 14350 kHz ham radio
19 meters 15100 to 15600 kHz broadcasting
17 meters 18068 to 18168 kHz ham radio
16 meters 17550 to 17900 kHz broadcasting
15 meters 21000 to 21450 kHz ham radio
13 meters 21450 to 21850 kHz broadcasting
12 meters 24890 to 24990 ham radio
11 meters 25670 to 26100 kHz broadcasting
10 meters 28000 to 29700 kHz ham radio

You'll notice some inconsistencies in the table above. For example, the 17-meter ham radio band is actually higher in frequency than the 16-meter broadcasting band. These inconsistencies have come about from years of use (misuse?) of a particular "meter band" to refer to a certain range of frequencies.



160 meter contesting by N1RR
160M contesting IS very difficult, but is a great place to test and compare HF radios. Your equipment must stands up to very loud signals S9+50/60/70/80db and reveal the extremely weak ones. What radios do you use/hate on 160 ? Do you use one type on CW and another for SSB ?



By AH8DX
The DX window on 160 is an asset to the DX but generally speaking when on a small island trying to erect a 160 meter antenna, it always seems that I cannot get the antenna's swr at minimum in that part of the band, therefore I generally have to operate where the antenna has lowest swr. Traveling with a bulky antenna tuner just is not a high priority since I am overweight almost always. The antenna of choice recently has been an inverted L using 45 vertical feet of army fiberglass mast on the beach with elevated radials towards EU and Stateside. Remember to listen outside of the DX window for weak DX because of their swr problems. Gud DX, Craig AH8DX


by K1PX
I find contesting on this band to be a particularly unique challenge. Figuring out stategies and working with various antennas to improve performance are my favorite parts of it. Anyone else find this band interesting for contesting?


7.000 - 7.010 CW DX & DXpedition Window
7.005 DXpeditions CW are frequently here
7.035~7.045 SSTV Operating Frequency -- IARU Region 1
7035.15 PSK-31 (offset -115 for USB)FOR Region 1 and 7080.15 for region 2
7.040 RTTY DX
7.040 to 7.099 SSB DX & DXpedition Transmit -- Listening above 7.150
7.050 XTAL Controlled Rigs
7.065 DXpedition SSB USA split to 7.150 and above
7.171 SSTV Operating Frequency USA/Canada
7.245 FAX Operating Frequency
7.290 AM Calling Frequency

21.025 Rare DX & DXpeditions Frequently Operate CW Here -- Generally Listening Up (Split Operation)
21070.14 PSK-31 (offset -115 for USB)
21.080 RTTY DXpeditions are frequently here
21.295 Rare DX & DXpeditions Frequently Operate SSB Here -- Generally Listening Up (Split Operation)
21.335~21.345 SSTV Operating Frequency -- IARU Region 1
21.340 SSTV Operating Frequency USA/Canada
21.345 FAX Operating Frequency

28.025 CW Rare DX & DXpeditions Frequently Operate Here -- Split
28070.15 PSK-31 (offset -115 for USB)
28.080 RTTY Rare DX & DXpeditions Frequently Operate Here -- Split
28.1010 10/10 Intl CW Calling Frequency
28120.150 -- PSK31
28.120-28.300 Beacons
28.380 10/10 SSB Intl Calling Frequency
28.425 10/10 SSB Intl Calling Frequency
28.495 SSB Rare DX & DXpeditions Frequently Operate Here -- Split
28.600 Old General Callin Frequency - Still used by Old Timers
28.675~28.685 SSTV Operating Frequency -- IARU Region 1
28.680 SSTV Operations USA/Canada
28.825 10-10 Backskatter Net - Paper Chasers Net
28.885 6M DX Liaison Frequency -- Listen here for 6 Meter DX opening announcements and discussions.
28.945 FAX Operating Frequency
29.000-29.200 AM Operations
29.300-29.510 Satellite Downlinks
29.520-29.580 Repeater Inputs
29.600 FM Simplex - Calling Frequency
29.620-29.680 Repeater Outputs


6 Meter DX Liaison Frequency - 28.885 MHz -- Listen here for 6 Meter DX opening announcements and discussions.
50.0-50.1 CW
50.06-50.09 Beacons
50.090 CW Calling Freq
50.7 RTTY Calling Frequency
50.100 to 50.130 DX Window
50.110 DX Calling Frequency
50.115 DXpeditions Frequently operate CW and SSB here
50.1-50.6 Weak Signal, AM
50.125 National SSB Calling Frequency
50.290, 50.350 to 50.375 -- Suggested PSK Frequencies
50.4 National AM Calling Frequencies
52.525 National FM Calling Frequency
6 Meter Simplex Frequencies
52.020, 52.040, 52.540, 53.000, 53.020, 53.520, 53.900


Antenna Theory 101

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