Top Ten frequencies to monitor for TA reception?

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daveB
Posts: 1006
Joined: 07 Oct 2014 16:49

Top Ten frequencies to monitor for TA reception?

Post by daveB » 23 Nov 2017 21:01

My aerial is probably useless for MW DXing as it is only a short dipole cut for 70 MHz fed by about 10 m of coax.

However I'm playing with SDR Console v3 which allows multiple VFO's to be displayed in a matrix and I can comfortably display 10 frequencies simultaneously. Using a 2 MHz bandwidth the CPU usage is only around 57%

So what would be the top ten most likely North American/Transatlantic frequencies to monitor? I will include the Caribbean beacon on 1610 kHz and St John's on 590 kHz in my ten.

My plan is (as with FMDX) to record overnight whilst using a screen capture program to take snapshots of the 10 VFOs every 30 seconds, of 30 seconds of waterfall. OK it's lazy but once I actually prove I can receive something I may be more inclined to gt serious about it.

Incidentally I get 1197 kHz at -43 dB for a noise floor of -95 dB and without the aerial the noise floor drops to -105 dB
SDRPlay, AirSpyMini, RTL dongles, SB920s, Yamaha TX930. 5 ele compact yagi on rotator at 18ft agl. FM5 facing east, FM5 facing south, FM3 facing NE, OIRT dipole, 3-ele Moxon vertical facing east.

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John Faulkner, Skegness
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Location: Skegness, Lincolnshire. JO03dd
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Re: Top Ten frequencies to monitor for TA reception?

Post by John Faulkner, Skegness » 23 Nov 2017 22:08

This would depend on the conditions. Persistent quiet conditions favour North America, unsettled is the Caribbean, Active to minor storm is South America. Different people may have different views and different channels will be less favourable in different parts of the country, but you would know this. My own personal top 10 most commonly heard TAs would be as follows:

Code: Select all

North America:

 600 CBNA Saint Anthony NL
 640 CBN  St Johns NL
 750 CBGY Bonavista Bay NL
 800 VOWR Saint John NL
 950 CKNB Campbellton NB
1010 WINS New York NY / CFRB Toronto ON
1130 WBBR New York NY
1200 CFGO Ottawa ON
1400 CBG  Gander NL
1560 WFME New York NY


Central America/Caribbean:

 670 Radio Rebelde, multi-tx
 710 Radio Rebelde, multi-tx
1180 Radio Rebelde, Multi-tx
1280 WCMN Noti Uno, Arecibo PR
1400 Harbour Light of the Windwards, Carriacou (cpm)
1520 WVOZ Radio Voz, San Juan PR
1540 2013-02-08 BAH ZNS-1 Radio Bahamas, Nassau (npr)
1610 Caribbean Beacon, The Valley (tvy)
1620 Radio Rebelde, Muti-tx
1660 WGIT Canóvanas PR


South America:

 740   B  ZYH446 Rádio Sociedade da Bahia, Salvador (BA)
 750 YVKS RCR 750 Radio Caracas, Caracas (dcf)
1190 LR9  Radio América, Buenos Aires (DF)
1190 HJCV Radio Cordillera, Bogotá (bdc)
1270 LR9  Radio Provincia de Buenos Aires, Buenos Aires (DF)
1290 YVLF Radio Puerto Cabello, Puerto Cabello (cbb)
1320 YVWP Radio Apolo, Turmero (arg)
1350 LS6  Radio Buenos Aires, Burzaco (ba)
1380 YVNG Ondas del Mar, Puerto Cabello (cbb)
1500 YVRZ Radio 2000 AM, Cumaná (suc)

daveB
Posts: 1006
Joined: 07 Oct 2014 16:49

Re: Top Ten frequencies to monitor for TA reception?

Post by daveB » 25 Nov 2017 13:12

Thanks John I gave it a try from 0200 - 0800 on 24th. I selected 10 frequencies to monitor on the SDR console matrix and used screen capture to take a screenshot every 30 seconds. It took about 5 minutes to playback 2 hours of screenshots. This showed at best very weak carriers on a couple of frequencies - one of which was 1010 kHz

I must learn where to find MW propagation conditions so I can target the best days to record. This was more of an excercise to prove the viability of using SDR Console v3 running and displaying 10 VFOs and as so little was present I didn't bother listening to the actual I/Q recordings.
SDRPlay, AirSpyMini, RTL dongles, SB920s, Yamaha TX930. 5 ele compact yagi on rotator at 18ft agl. FM5 facing east, FM5 facing south, FM3 facing NE, OIRT dipole, 3-ele Moxon vertical facing east.


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