[SFDXA] What Frequencies are suggested for what Modes?

[Bill]

/And how about Digital Frequencies...? //(scroll down) WSPR ?(a little 
further)

/
*https://www.arrl.org/files/file/conop.pdf*


  _Recommended frequencies for digital modes/_

*https://www.qsl.net/sv1grb/psk31.htm*

*
*

_*PSK, RTTY, SSTV, MFSK, OL/*_

_*
*_

_*IVIA, JT65, JT9, FT8, FT4 & JS8 Frequencies*_

_*(All frequencies are transceiver DIAL frequencies)
- JT65, JT9, FT8, FT4 and JS8 frequencies are defined by the mode's 
developers for Region 1*_

_*- PSK, RTTY and MFSK are not critical but usually stations are heard 
at these frequencies
*__*- OLIVIA frequencies are the suggested by the Olivia group at groups.io

***_

Sights and Sounds of Digital Modes (W1HKJ 's website) 
<https://www.w1hkj.org/modes/index.htm>




*PSK*

160m 	1.838
80m 	3.580
40m 	7.040
30m 	10.141
20m 	14.070
17m 	18.103
15m 	21.070
12m 	24.920
10m 	28.070
28.120
6m
	50.305



*RTTY*

80m 	3.590
40m 	7.043
30m
	10.143
20m 	14.083
17m
	18.106
15m 	21.080
12m
	24.925
10m 	28.080
6m
	50.600



*SSTV*

80m 	3.735
20m 	14.230
15m 	21.340
10m 	28.680
6m
	50.510




*MFSK
(MFSK16, OLIVIA 8/250, CONTESTIA 8/250 etc)*

160m 	1.838,50
80m 	3.582,50
40m 	7.042,50
30m 	10.141
20m 	14.072,50
17m 	18.103
15m 	21.086,50
12m 	24.921,50
10m 	28.072,50
6m
	

*
OLIVIA*

160m 	1.837,50 (8/250)
80m 	3.581,50 (8/250)
40m 	7.038,50 (8/250)
30m 	10.141,50 (8/250)
20m 	14.071 (8/250)
14.107 (32/1000)
17m 	18.101 (8/250)
15m 	21.071 (8/250)
12m 	24.921 (8/250)
10m 	28.121 (8/250)



*JT65*

160m 	1.838
80m 	3.570
40m 	7.076
30m 	10.138
20m 	14.076
17m 	18.102
15m 	21.076
12m 	24.917
10m 	28.076
6m
	50.310



*JT9*

160m 	1.839
80m 	3.572
40m 	7.078
30m 	10.140
20m 	14.078
17m 	18.104
15m 	21.078
12m 	24.919
10m 	28.078
6m 	50.312



*FT8*

160m 	1.840
80m 	3.573
60m
	5.357
40m 	7.074
30m 	10.136
20m 	14.074
17m 	18.100
15m 	21.074
12m 	24.915
10m 	28.074
6m
	50.313
50.323- intercontinental



*FT4*

160m 	
80m 	3.575
60m
	
40m 	7.047,50
30m 	10.140
20m 	14.080
17m 	18.104
15m 	21.140
12m 	24.919
10m 	28.180
6m
	50.318



*JS8*

160m 	1.842
80m 	3.578
60m
	
40m 	7.078
30m 	10.130
20m 	14.078
17m 	18.104
15m 	21.078
12m 	24.922
10m 	28.078
6m
	50.318




*_WSPR and QRSS frequencies_*

*https://g6nhu.co.uk/frequencies.html*

*
*

These are not dial frequencies but the actual transmit range.  This list 
is for direct frequency entry transmitters such as the Hans Summers QRP 
Labs “Ultimate 2 / Ultimate 3(S)” kits.

Both 40m and 30m can be very overcrowded.  Please check the active 
grabbers <http://swharden.com/qrss/plus/> before you transmit to find a 
clear spot and because it's so busy, please think very carefully before 
you run slow Hell on either band.

2200m

WSPR: 137.500 kHz +/- 100 Hz

600m

WSPR: 475.700 kHz +/- 100 Hz

QRSS: 476.100 kHz +/- 100 Hz

160m

WSPR: 1,838.100 kHz +/- 100 Hz

QRSS: 1,837.900 kHz +/- 100 Hz (check local licence conditions)

80m

WSPR: 3,570.100 kHz +/- 100 Hz

QRSS: 3,569.900 kHz +/- 100 Hz

60m

WSPR: 5,288.700 kHz +/- 100 Hz (check local licence conditions)

QRSS: 5,288.550 kHz +/- 50 Hz (check local licence conditions)

40m

WSPR: 7,040.100 kHz +/- 100 Hz

QRSS: 7,039.900 kHz +/- 100 Hz

30m

WSPR: 10,140.200 kHz +/- 100 Hz

QRSS: 10,140.000 kHz +/- 100 Hz

22m ISM band (Worldwide frequency allocation but check local regulations)

WSPR: 13,555.400 kHz +/- 100 Hz

QRSS: 13,555.275 - 13,555.675 kHz (13,555.400 kHz is the centre of activity)

20m

WSPR: 14,097.100 kHz +/- 100 Hz

QRSS: 14,096.900 kHz +/- 100 Hz

17m

WSPR: 18,106.100 kHz +/- 100 Hz

QRSS: 18,105.900 kHz +/- 100 Hz

15m

WSPR: 21,096.100 kHz +/- 100 Hz

QRSS: 21,095.900 kHz +/- 100 Hz

12m

WSPR: 24,926.100 kHz +/- 100 Hz

QRSS: 24,925.900 kHz +/- 100 Hz

10m

WSPR: 28,126.100 kHz +/- 100 Hz

QRSS Region 1 (Europe / Africa): 28,125.500 - 28,125.700 kHz

QRSS Region 2 (USA / South America): 28.125.700 - 28,125.900 kHz

QRSS Region 2 (RoW and buffer): 28,125.900 - 28,126.000 kHz

QRSS: 28,322.000 kHz +/- 100 Hz (Italian network)

6m

WSPR: 50,294.500 kHz +/- 100 Hz

QRSS: 50,294.300 kHz +/- 100 Hz

The QRSS segment of each band is directly below the WSPR section to 
allow grabbers to monitor both QRSS and WSPR at the same time.

If you have any corrections or comments regarding this frequency list, 
please contact <http://qso365.co.uk/contact/> me.

Updated: 16th November 2022

©

G6NHU, 2011-2025





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