Showing posts with label Trans-Atlantic. Show all posts
Showing posts with label Trans-Atlantic. Show all posts

Tuesday, May 28, 2024

Trans-Atlantic opening on the FM band (87-102 MHz) - 27th May 2024


On the 27th of May 2024, a little bit of radio history was made with the very first reception of a trans-Atlantic FM radio station in mainland Europe. The map above shows the radio stations that FMDXer Mauricio Molano  in Cáceres in the west of Spain managed  to log including CHCM-FM in Marystown, Newfoundland on 88.3 MHz.

Log...

UTC QRG ITU Station, location Details, remarks Distance km kW ERP

12:06 90.20 AZR R80 Rádio, Pico da Barrosa (smg) 1674kms 0.5kw

12:15 87.70 AZR RTP Antena 3, Pico da Barrosa (RDP) (smg) 1674kms  40kw

12:50 88.30 AZR Rádio Clube de Lajes do Pico, Pico do Geraldo 1896kms 0.05kw

14:25 88.30 CAN CHCM-FM, Marystown (NL) Openline with Paddy Daly. Special log: double hop. First Canadian station received from Spain! 3985kms  27kw

As can be seen from the log, CHCM-FM was heard at 14:25 UTC and it's likely that the propagation mode was double hop Sporadic-E.



Mauricio writes... "I have managed to fulfil another of my DX challenges!: to catch an FM station from the other side of the pond!. It was this afternoon, during the opening of Es, which had started around 1200Z and brought me several stations from the Azores Islands with good signals. A couple of hours later, our colleague Larry Horlick (Coley's Point, NL) began picking up Spanish and Portuguese stations. 

In the first minutes of the opening was when I caught the CHCM-FM (Marystown) signal on 88.3 with 
VOCM programming. On 88.5 I have another signal but very weak. I assume it is CBN-1-FM CBC-R1 
Saint John's, but it will be difficult for me to identify it 100%. Both frequencies are very difficult in my 
listening place (Aldea del Cano, Cáceres) due to the presence of semi-local stations on 88.2, 88.4 
and 88.6 MHz. This year the DX season has started late here, but it has started very, very well!."



Mauricio also notes that he has two receiver/antenna systems. The first one is a three element Yagi points to the Canary Islands (south-west) attached to a RSPDuo receiver. The second one is a 4-element Yagi pointing to Newfoundland and attached to a Perseus with the FM+ converter.

In this case,  the station from Canada was actually heard on the antenna pointing to the Canary Islands!

Just to clarify, this isn't the first trans-Atlantic FM stations have been heard in Europe but all of the previous reception reports were to the UK and Ireland. This is the first time of a trans-Atlantic reception report on the Iberian Peninsula and mainland Europe. 



Larry Horlick, VO1FOG in Newfoundland... Larry is a long time FMDXer and he caught an impressive haul of FM radio stations from Portugal and Spain in the same opening. Larry has the advantage of a quieter FM band on his side of the Atlantic.


One of the major advantages of modern SDR receivers is that an opening can now be recorded and then be later reviewed afterwards to see what was heard. 

Larry's log is shown below and it's worth remembering that these are FM radio stations from the other side of the North Atlantic.


The frequencies range from 87.6 MHz to 102.4 MHz and the distances range from 3632 kms to 4136 kms.

Larry says his catch of the day was SER, Estepa, Spain on 98.3 MHz which has an ERP of just 250-watts.

In conclusion... While there have been trans-Atlantic openings on the FM band before, it is still a remarkable occurrence and worth noting. Every year, we see multi-hop Sporadic-E across the North Atlantic on the 28 MHz and 50 MHz bands and while it's of interest to those involved, it's really nothing out of the ordinary.

Band 2 signals (88-108 MHz) are different though and it's always interesting to see FM radio stations from either side of the North Atlantic reach the other side. The question always remains as to how high does an opening reach? Can it get up into the aircraft band at 118 to 135 MHz? What about 144 MHz? Spain to Newfoundland on the 2m band? Is it possible? Is anyone trying?

Links...
1) See my 88-108 MHz my 88-108 MHz page for more examples of trans-Atlantic openings
2) Mauricio has his own SWL website here... https://moladx.blogspot.com/
3) FMList website... https://www.fmlist.org/

Saturday, December 17, 2022

Trans-Atlantic opening on the 50 MHz band - Fri 16th Dec 2022


There was an interesting trans-Atlantic opening on the 50 MHz band between Europe and North America on Friday the 17th of December 2022 and it looks as if it was either F2 layer or multi-hop Sporadic-E propagation.

The map above shows the 50 MHz paths open via FT8 for AB1OC in New Hampshire. There is evidence of plenty of Sporadic-E activity to the eastern half of the United States but several stations in the UK and Ireland can seen.

Txmtr Rcvr Band Mode Distance Time (UTC)
G0CHE AB1OC 6m FT8 5265 km 15:14:44
G4IFX AB1OC 6m FT8 5244 km 15:16:44
AB1OC M0DEP 6m FT8 5194 km 15:13:29
G0GGG AB1OC 6m FT8 5149 km 15:15:14
AB1OC G0HVQ 6m FT8 5117 km 14:38:26
G4RRA AB1OC 6m FT8 5055 km 15:10:44
AB1OC G8IXN 6m FT8 4979 km 14:42:29
EI7GUB AB1OC 6m FT8 4819 km 14:24:14
AB1OC EI3KD 6m FT8 4728 km 14:32:29
EI2IP AB1OC 6m FT8 4688 km 15:09:44

There are plenty of openings on the 50 MHz band at the moment but most of them are from areas closer to the equator. In the last week or so, there have been some very long paths across the Pacific from Australia and New Zealand to the USA. What makes the North Atlantic opening interesting is that it was East-West and it was from a northerly latitude.

It looks as if the opening itself was reasonably modest and it was mainly confined to what might be described as 'large stations' i.e. the numbers were in the tens rather than the hundreds.

WW1L in Maine and W3UR in Maryland have similar list of FT8 across the Atlantic...

Txmtr Rcvr Band Mode Distance Time (UTC)
G0CHE WW1L 6m FT8 4965 km 15:15:14
G4IFX WW1L 6m FT8 4945 km 14:49:44
WW1L M0DEP 6m FT8 4894 km 14:44:28
G0GGG WW1L 6m FT8 4850 km 15:15:14
G0HVQ WW1L 6m FT8 4817 km 14:54:44
WW1L G0HVQ 6m FT8 4817 km 14:47:56
WW1L G7RHF 6m FT8 4779 km 14:53:27
WW1L G4RRA 6m FT8 4756 km 15:33:59
WW1L G8IXN 6m FT8 4681 km 14:40:59
EI7GUB WW1L 6m FT8 4518 km 14:13:14
WW1L EI3KD 6m FT8 4428 km 15:02:29

Txmtr Rcvr Band Mode Distance Time (UTC)
G0CHE W3UR 6m FT8 5858 km 15:16:14
W3UR G4IFX 6m FT8 5838 km 15:31:58
W3UR M0DEP 6m FT8 5787 km 14:59:28
W3UR G0GGG 6m FT8 5743 km 14:59:30
W3UR G0HVQ 6m FT8 5711 km 14:59:56
W3UR G7RHF 6m FT8 5673 km 14:59:29
W3UR G4RRA 6m FT8 5648 km 15:31:59
W3UR G8IXN 6m FT8 5571 km 15:31:59
W3UR EI3KD 6m FT8 5321 km 15:33:29


Looking from the eastern side of the Atlantic, the FT8 paths for EI3KD on the south coast of Ireland are shown above. I've included the full path lists for EI3KD and G1IFX at the end of this post.

Analysis... This post certainly isn't an exhaustive list of who worked what but it gives an overview of what the 6m trans-Atlantic opening was like. The big question is if the opening was via the F2 layer or was it multi-hop Sporadic-E like during the Summer months?

In the last three days, there have been 29 M-Class flare from the sun and the solar flux on the 16th was up to 166. It would suggest that F2 propagation might be one explanation. There were some Sporadic-E openings on the day in Europe and North America so the possibility of trans-Atlantic multi-hop Sporadic-E can't be ruled.

Paul Logan, MI3LDO reports that conditions in the low VHF band (~40 MHz) suggests that it was more likely to be Sporadic-E rather than F2 layer.

It's worth remembering that the peak of this sunspot cycle is unlike all of those that came before. Now most radio amateurs are using weak signal modes like FT8 and are listening for signals buried in the noise. In the previous cycles, CW and SSB were the dominant modes.

I didn't see any reports of CW or SSB contacts for the trans-Atlantic opening on the 16th and I'm quite sure that without FT8, it would have been a much smaller affair with just a small few stations making contacts.

The take home message is that if it was F2 propagation then it's likely to happen again. If it was multi-hop Sp-E Sporadic-E then it may not occur again for a while. Keep those beams pointing across the Atlantic and wait for the next 6m opening.

Cont...

FT8 paths for EI3KD in Ireland...

Sunday, May 8, 2022

Irish Trans-Atlantic 144 MHz beacon EI2DKH stops transmitting - May 2022

It was announced this week that the Irish trans-Atlantic 144 MHz beacon EI2DKH has ceased transmissions.

Operated on behalf of the Irish Radio Transmitters Society (IRTS) by Tony Baldwin, EI8JK, the EI2DKH beacon transmitted JT65B on 144.488 MHz with a CW identification on every even minute.

The beacon was established in early 2015 with the hope that the 2m signal would be heard across the North Atlantic in either Canada or the United States.

The beacon’s power output was 75 W to an array of 5 element Yagis at 60 meters above mean sea level and beaming due west from Sheeps Head in IO51dn.

As can be seen from the map, this was in the far south-west of Ireland and just over 3,000 kms from Newfoundland, Canada.

In its seven years of operating, there were no 2m reports from across the Atlantic.

In a statement on the 5th of May 2022, the beacon keeper Tony, EI8JK wrote...

"It has been pointed out that my EI2DKH beacon is perhaps not the best site. That coupled with the electricity cost for running it 24/7, I have decided to not run the Trans-Atlantic beacon this year.

If there is an EI/GI amateur with a good site on the west coast who would like to take it over, I would willingly supply the 4 antennas, splitter and pre-amp.

Sorry to disappoint.

73, Tony, EI8JK."

This project might be of interest to any individual or group who have access to a site which is near the western seaboard of Ireland and has an extremely low horizon to the west-north-west.

Saturday, August 21, 2021

Day 2 of Trans-Atlantic opening on 144 MHz between the Canary Is and the Caribbean - 20th Aug 2021

Following on from the trans-Atlantic opening on 144 MHz on the 19th, the tropo duct between the Canary Islands and the Caribbean remained open on the 20th of August 2021.


César, EA8CXN in Tenerife seems to have had the best path to the Caribbean with seven different stations in Puerto Rico and Guadeloupe listed on the PSK Reporter website.

These are the reports for the EA8 stations...

EA8CXN
Txmtr Rcvr Band Mode Distance Time (UTC)
NP4BM EA8CXN 2m FT8 5237 km 01:59:59
EA8CXN NP4BM 2m FT8 5237 km 23:03:44
KP4EIT EA8CXN 2m FT8 5189 km 00:40:59
EA8CXN KP4EIT 2m FT8 5189 km 19:19:45
EA8CXN WP3DN 2m FT8 5158 km 23:14:14
WP3DN EA8CXN 2m FT8 5158 km 22:37:59
EA8CXN WP4G 2m FT8 5153 km 22:27:41
WP4G EA8CXN 2m FT8 5153 km 11:51:29
EA8CXN FG4ST 2m FT8 4813 km 12:37:14
EA8CXN FG4SU 2m FT8 4811 km 23:03:44
FG4SU EA8CXN 2m FT8 4811 km 22:54:29
EA8CXN FG5GH 2m FT8 4809 km 14:39:11
FG5GH EA8CXN 2m FT8 4809 km 11:31:29


EA8DEC
Txmtr Rcvr Band Mode Distance Time (UTC)
EA8DEC NP4BM 2m FT8 5237 km 22:11:44
NP4BM EA8DEC 2m FT8 5237 km 13:19:56
EA8DEC FG4ST 2m FT8 4813 km 12:39:44
EA8DEC FG5GH 2m FT8 4809 km 13:06:41


EA8RH
Txmtr Rcvr Band Mode Distance Time (UTC)
NP4BM EA8RH 2m FT8 5204 km 21:14:59
EA8RH NP4BM 2m FT8 5204 km 21:12:44
EA8RH WP3DN 2m FT8 5125 km 14:18:42
WP3DN EA8RH 2m FT8 5125 km 14:15:59
EA8RH WP4G 2m FT8 5120 km 14:18:41


EA8TL
Txmtr Rcvr Band Mode Distance Time (UTC)
NP4BM EA8TL 2m FT8 5196 km 14:52:26
EA8TL NP4BM 2m FT8 5196 km 14:31:14

EA8RCP
Txmtr Band Mode Distance Time (UTC)
NP4BM 2m FT8 5107 km 14:49:26

EA8TX
Rcvr Band Mode Distance Time (UTC)
NP4BM 2m FT8 5221 km 18:51:44
KP4EIT 2m FT8 5173 km 18:51:45
WP3DN 2m FT8 5141 km 18:53:42
WP4G 2m FT8 5136 km 18:51:41

DX-Cluster: As the spots below show, there was some SSB activity as well...

 Spotter Freq. DX Time Info Country
EA8CSB 144250.0 KP4EIT 23:53 20 Aug swl rx 3/1 x-7000 signal very Puerto Rico
EA8BPX 144250.0 KP4EIT 23:36 20 Aug hrd in il18 again Puerto Rico
EA8CXN 144174.0 FG4SU 23:11 20 Aug FK96 TR IL18 Cqing Guadeloupe (FT8)
KP4EIT-@ 144250.0 EA8BPX 22:20 20 Aug 5/7 now good prpagation ssb Canary Islands
EA8CTK 144250.0 NP3XF 22:04 20 Aug 51 il18ni tr fk58 Puerto Rico
NP3XF 144250.0 EA8CXN 21:58 20 Aug 5/7 fk68 Canary Islands
NP3XF 144250.0 EA8BPX 21:41 20 Aug 5/6 Canary Islands
NP3XF 144300.0 EA8BPX 21:41 20 Aug 5/6 Canary Islands
EA8BPX 144250.0 NP3XF 21:40 20 Aug 53 fk68 il18 Puerto Rico 
EA8BPX 144250.0 NP4BM 21:29 20 Aug 53 second qso Puerto Rico
EA8CTK 144250.0 NP4BM 21:27 20 Aug il18 tr fk68 53 Puerto Rico
EA8CTK 144250.0 KP4EIT 21:11 20 Aug 5/2 il18ni Puerto Rico
KP4EIT-@ 144250.0 EA8BPX 21:10 20 Aug calling Caribbean Canary Islands
EA8CTK 144300.0 KP4EIT 21:09 20 Aug 5/2 il18ni Puerto Rico
KP4EIT-@ 144250.0 EA8CTK 21:05 20 Aug 5/3 tnx ssb Canary Islands
KP4EIT-@ 144250.0 EA8BPX 21:01 20 Aug 5/5 tnx Canary Islands
EA8CXN 144250.0 KP4EIT 19:25 20 Aug FK68 TR IL19 59++ Big SSB Sign Puerto Rico
EA8TX 144260.0 KP4EIT 19:23 20 Aug Il18 tr FK68 ssb Puerto Rico 
KP4EIT-@ 144260.0 EA8TX 19:22 20 Aug 5/5 tnx Canary Islands
EA8TX 144174.0 NP4BM 19:19 20 Aug Hrd 4 pse 144.260 Puerto Rico (FT8)
KP4EIT-@ 144250.0 EA8CXN 19:15 20 Aug 5/910db tnx Cesar Canary Islands
NP4BM-@ 144174.0 EA8TX 19:11 20 Aug +8 ur best Canary Islands (FT8)
KP4EIT-@ 144174.0 EA8CXN 18:59 20 Aug -01 tnx Cesar Canary Islands (FT8)
EA8CXN 144174.0 KP4EIT 18:57 20 Aug FK68 TR IL18 Puerto Rico (FT8)
KP4EIT-@ 144174.0 EA8TX 18:52 20 Aug -10 tnx Canary Islands (FT8)
FG4ST 144174.0 EA8CXN 12:31 20 Aug FT8 TROPO Canary Islands (FT8)
EA8CXN 144350.0 FG4ST 12:23 20 Aug FK96 TR IL18 SSB Guadeloupe
EA8CXN 144174.0 WP4G 11:53 20 Aug FK68 TR IL18 Puerto Rico (FT8)
EA8CXN 144174.0 FG5GH 11:48 20 Aug FK96 TR IL18 Guadeloupe (FT8)
EA8CXN 144174.0 WP3DN 11:19 20 Aug FK68 TR IL18 Puerto Rico (FT8)
EA8CXN 144174.0 NP4BM 11:04 20 Aug FK68 TR IL18 Puerto Rico (FT8)

Video clips: This first one is an SSB contact between EA8CXN on Tenerife and KP4EIT in Puerto Rico...

This second video clip is of Franck, FG4ST on Guadeloupe working EA8CXN...

It's pretty amazing to when you consider that you are listening to a trans-Atlantic signal on 144 MHz.

Distances: Like the previous day, the distances were in the region of 4800 to 5200kms.


It's interesting to see the distances plotted out on a map and how parts of North & South America are closer to the Canary Islands than the Caribbean.

Propagation Mode: The map below from Pascal, F5LEN shows the predicted tropo conditions...


It looks as if there is a large tropo duct across the Atlantic. It may well be that a layer of dust from the Sahara may be playing a role in this opening as well as it travels west.

Links...

* * *

Update: Day 3 - 21st of Aug 2021
This day was similar to previous days except the number of stations was lower.

FT8 spots
Txmtr Rcvr Band Mode Distance Time (UTC)
EA8CXN NP4BM 2m FT8 5237 km 18:02:14
NP4BM EA8CXN 2m FT8 5237 km 15:31:59
KP4EIT EA8CXN 2m FT8 5189 km 21:39:59
EA8CXN KP4EIT 2m FT8 5189 km 21:39:15
EA8CXN FG4ST 2m FT8 4813 km 21:39:14
EA8CXN FG5GH 2m FT8 4809 km 21:39:11

KP4EIT EA8DEC 2m FT8 5189 km 12:46:56

DX-Cluster spots
 Spotter Freq. DX Time Info Country
EA8CXN 144174.0 FG4ST 21:51 21 Aug FK96 TR IL18 Guadeloupe
KP4EIT-@ 144174.0 EA8CXN 21:41 21 Aug NOW VERY STRONG INTO FK68 Canary Islands
KP4EIT-@ 144174.0 EA8CXN 19:54 21 Aug -9 TNX cESAR Canary Islands
EA8DEC 144174.0 KP4EIT 13:07 21 Aug FK 68 CQ Puerto Rico
KP4EIT-@ 144260.0 EA8TX 12:55 21 Aug 5/3 tnx Canary Islands 
KP4EIT-@ 144174.0 EA8DEC 12:53 21 Aug -23 tnx Canary Islands
EA8TX 144174.0 KP4EIT 12:53 21 Aug Hrd 0db pse 144.260 Puerto Rico

Friday, July 23, 2021

FM radio stations in Maine heard across the Atlantic in the north of Ireland - 22nd July 2021


Thursday 22nd July 2021: Openings on the FM band (88-108 MHz) between North America and Europe are very rare and it's always interesting to hear about these very high frequencies crossing the North Atlantic.

On the 22nd, Paul Logan in Lisnaskea in Co.Fermanagh in the north of Ireland managed to catch a short 5-minute opening to the state of Maine in the NE of the USA. 

* * *

UTC QRG ITU Station, location Details, remarks Distance km Received by/in kW ERP Pol

14:06 UTC 89.70 MHz USA WMED, Calais (ME) Weak. End of wx report. Start of "On point" show. Fits with online edition. Brief. 4294kms 30kW m

14:06 UTC 92.90 MHz USA WEZQ, Bangor (ME) Sports talk, same time as 88.5 4390kms 20kW m

14:05 UTC 88.50 MHz USA WHCF, Bangor (ME) Religious show, Scottish preacher // web 4353kms  35kW m

* * *


As the log from the FMLIST website shows above, Paul managed to log three separate stations at the bottom of Band 2 with frequencies in the range of 88 to 93 MHz.

To put this opening in perspective, this was only the 9th trans-Atlantic Band 2 opening for Paul Logan in a period of about 20 years.

For the reception, Paul was using a ELAD FDM S2 SDR receiver with a Band 2 9-element Yagi 8m above ground level.


Propagation Mode: As can be seen from the log, the distances were in the region of 4300kms. It's likely that the mode of propagation was double hop Sporadic-E i.e. 2 x 2150km hops.

For more examples of long distance reception reports on Band 2, visit my 88-108 MHz page.

Thursday, July 22, 2021

FM radio stations on the Azores are heard again in N America - 21st July 2021

 


Wednesday 21st July 2021: At the start of July, FM radio stations on the Azores were heard in the USA. On the 21st, the North Atlantic path opened again with FM stations being heard in Newfoundland and Cape Cod, MA.

This is a log of what was heard by Larry Horlick (VO1FOG) in Newfoundland and Bryce Foster in the US...

* * *

UTC QRG ITU Station, location Details, remarks Distance km Received by/in kW ERP Pol

19:32 88.90 MHz AZR RTP Antena 1, Horta/Cabeço Gordo (fai) Recording verified by Paul Logan,  2218kms by Larry Horlick, Coley's Point (CAN) 9.1 c

19:36 90.50 MHz AZR RTP Antena 1, Serra de Santa Bárbara (tce) Recording verified by Paul Logan 2309kms by Larry Horlick, Coley's Point (CAN) 35 h

19:44 87.70 MHz AZR RTP Antena 3, Pico da Barrosa (RDP) (smg) Antena tres, Recording verified by Paul Logan  2501kms by Larry Horlick, Coley's Point (CAN) 40 v


21:33 88.50 MHz AZR Rádio Atlântida, Pico da Barrosa (smg) // webstream,  3830kms  in Mashpee, MA (USA) 3 m

21:33 87.70 MHz AZR RTP Antena 3, Pico da Barrosa (RDP) (smg) Antena 3 ID, // stream,  3830kms in Mashpee, MA (USA) 40 v

* * *

Propagation Mode: It looks very likely that this was a case of single and double hop Sporadic-E again.

The distance from the Azores to Newfoundland is in the region of 2200-2500kms and this was most likely one hop Sporadic-E with a small tropo extension.

The distance from the Azores to Cape Cod in the US is 3830kms and this was very likely to be double hop Sporadic-E.

It's interesting to see that the path from Newfoundland to Bermuda was open at 21:00 UTC which suggests the location of one of the Sporadic-E clouds.

For earlier trans-Atlantic reception reports, see my 88-108 MHz page.

Links...

1) FMLIST website log for the 21st of July 2021

Wednesday, July 21, 2021

EI2DKH - The 144 MHz trans-Atlantic beacon


The EI2DKH beacon in the south-west of Ireland is now running 24/7 beaming across the Atlantic hoping to make contact with North America. 

The station run by Tony EI8JK transmitting Q65 (60 sec, sub mode C) with CW ID every even minute on 144.488 MHz with audio frequency of 1500 Hz and it receives Q65 every odd minute on 144.178 MHz with audio frequency of 1500 Hz.

The beacon runs 100-watts into 4 x 5-element LFA-Q antennas beaming 270 degrees.

The beacon locator IO51DO90CL and the site is about 40 metres above sea level.

Analysis... The beacon site is somewhat obstructed to the west with a 220m metre hill about 2.5kms away (3.2 deg elevation at 279 deg) which will prove to be a challenge.

Horizon for EI2DKH

Thursday, July 1, 2021

Azores FM radio station on 87.7 MHz heard in the USA - 1st July 2021


There was another remarkable opening on Band 2 across the North Atlantic on the 1st of July when Bryce Foster, K4NBF near Cape Cod in Massachusetts in the USA heard RTP Antena 3 on the Azores Islands on 87.7 MHz.

The distance was in the region of 3,830kms and it is I believe the very first reception report of a Band 2 signal from the Azores in the USA.

From what I understand, the reception happened at 14:15 UTC and it lasted for about 35-minutes.

The FM radio transmitter had a power of 30 kW and was located at the Pico da Barrosa site which is about 900m above sea level on the island of Sao Miguel in the Azores.

Propagation Mode: The map below shows the predicted tropo conditions on the North Atlantic path...


It would seem that the most likely propagation mode was double-hop Sporadic-E with perhaps TWO x 1900km hops. 

Around the same time as this trans-Atlantic opening, Larry Horlick, VO1FOG in Newfoundland heard a Band 2 FM radio station in Bermuda. This would suggest that there was an active Sporadic-E region in the western part of the N Atlantic capable of supporting propagation on Band 2.

The tropo map above shows a bit of tropo to the west of the Azores but I don't think it's enough to account for the additional 1500kms that is required to be added on to one Sp-E hop of 2300kms.

In Conclusion: Back on the 21st of June 2021, there was a remarkable trans-Atlantic opening on the 88-108 MHz band between Europe and Canada. See links to posts on this page.

Now just over a week later, we have another opening across the North Atlantic and the first reception report from the USA of the Azores.

I suspect this more southern path opens on Band 2 a lot more than we suspect and it will hopefully encourage more people the NE of the USA to listen for trans-Atlantic signals.

Friday, June 25, 2021

Spanish radio station on 88.8 MHz heard across the Atlantic in Newfoundland, Canada - 21st June 2021


Back on the 21st of June 2021, Paul Logan in the north of Ireland confirmed that he had heard a FM radio station across the Atlantic near Quebec City in Canada on 90.7 MHz.

I can now confirm that Larry Horlick, VO1FOG in Newfoundland, Canada managed to hear RNE-R5 Todo Noticias in the north-west of Spain on 88.8 MHz on the same day!

This is I believe the very first reception of a European FM station station on the 88-108 MHz band in North America.

It looks as if the signal came from the 80 kW transmitter near Zamora in Spain and the distance was in the region of 3780 kms.

I have two recordings which Larry very kindly sent on. The first one is at 11:46 UTC...

In the above recording, the cities of Zamora, Segovia and Burgos are mentioned. It would seem as if this is from the Castilla y Léon regional news bulletin which runs from 13:10 to 14:00 Spanish time.

This is the second audio recording at 11:50 UTC...

This one is a bit more noisy but the distinctive little 'jingle' between the news items can be heard.

Credits: I must thank Paul Logan in Ireland and Jorge Garzon in Spain for confirming that these were  indeed recordings of the RNE-R5 Todo Noticias radio station and that the transmitter site was near Zamora. Both are very experienced FMDXers and it's great to have their expertise to call on to make sure there was no mistake.

Newfoundland: On the receive side, Larry Horlick was using an ICOM IC-R8500 receiver with a centre-fed vertical dipole at 18m above ground level, cut for the lower end of the VHF LO TV band (essentially, non-resonant on Band 2).

Larry has only been listening seriously on the 88-108 MHz bands for a few weeks and he has already managed an incredible reception report. As well as being in a relatively quiet location (FM wise), he does have the advantage of being at the most eastern pat of Canada. 

It also helps that anything that Larry hears on the 88-108 MHz band is likely to be in English or French so any other language really stands out.

Propagation Mode: It seems very likely that this was a case of double hop Sporadic-E at 88.8 MHz.


The above diagram shows the signals 'bouncing' off Sporadic-E clouds at about 110kms above ground level and being reflected off the ocean at the mid way point. It's possible that this was also chordal hop with the signal going directly between the two Sporadic-E clouds without hitting off the Earth.

Note that the angles and height of the Sp-E cloud in the above diagram are greatly exaggerated. In reality, the angles are very shallow and are probably just a few degrees above the horizon.

This is another diagram showing the suggested path and the two Sporadic-E regions.


Paul Logan in the north of Ireland reports that he was hearing FM radio station from the Azores Islands for about five hours that day which he says was highly unusual. The MUF went up as high as 104 MHz.

It's likely that the Sporadic-E region responsible for the Azores to Ireland path was also responsible for the eastern first hop of the trans-Atlantic path between Spain and Newfoundland.

It's seems as if this eastern Sp-E region was present for several hours and it just required one Sp-E path at the right spot on the western part of the path to complete the 2 x 1890 km circuit.

In Conclusion: This really is an amazing reception report and is part of radio history in that it is the first proven reception of a European FM station on Band 2 in North America.

It also raises some interesting questions...

1) If someone in Newfoundland can hear a FM radio station in Spain then why can't FM radio stations in Newfoundland, Nova Scotia, Quebec and Maine be heard in Spain and Partugal?

2) If a Sporadic-E cloud in the western part of Atlantic can support a signal at 88.8 MHz then can it reach 144 MHz at times? And if so, could it couple into a tropo duct of say 1500 kms to complete the path to Spain or Portugal?

A double hop Sporadic-E trans-Atlantic path at 144 MHz is highly unlikely but a mixed Sp-E / Tropo propagation mode is much more likely.

The best thing about this trans-Atlantic reception report is that it now 'opens the door' on what might be possible. My hope is that it now raises awareness and more people will now listen for trans-Atlantic signals on the 88-108 MHz and 144 MHz bands.

Larry, VO1FOG informs me that he is building a 10 el K6STI Yagi for 88-108 MHz so hopefully we will get to hear of some more trans-Atlantic signals.

Addendum: This is a photo of the vertical Band 1 dipole that was used for the reception.


Friday, April 16, 2021

VO1FN 144 MHz Trans-Atlantic Project mentioned on Radio DARC broadcast on the Short Wave Band


Radio DARC is a short program broadcast on 6.070 KHz with 100 KW on Sundays at 09:00 UTC (11:00 CEST) about amateur radio with a lot of music.

On Sunday the 18th of April 2021, the VO1FN Trans-Atlantic project on 144 MHz gets a mention in their news items at about 10 minutes in.

While the program is broadcast in German, it does raise awareness about the 'VO1FN Trans-Atlantik Projekt' among a much wider community.

Radio DARC broadcast locally via FM and DAB in Germany, Austria and Italy. It is also broadcast on 3955 kHz and 9670 kHz for an audience outside of Germany. If you hear the broadcast then you can send them a reception report.

You can find out more about Radio DARC and their transmission times here... https://www.darc.de/nachrichten/radio-darc/

More information about the VO1FN Trans-Atlantic Project can be found in this previous blog post.

Thanks to Joerg, DM4DL for the above information.

Sunday, April 4, 2021

VO1FN : The 144 MHz Trans-Atlantic SDR Monitoring Station - Update 2021

 


Frank, VO1HP reports that the VO1FN 144 MHz Trans-Atlantic monitoring station will be reactivated by the end of May 2021!

This SDR receiver will be using SDR Console V3 and WSJT-x and will report to the PSK Reporter website as VO1FN.

The station will be located in St.John's, Newfoundland and will use two stacked 5-element 144 MHz LFA-Q quad style Yagis from Innovantennas.


The antennas will be pointing at western Europe and the receiver will be listening on 144.174 MHz which is the FT8 frequency.

Trans-Atlantic on 144 MHz: Is it possible??? ...As can be seen from the map above, the distance across the North Atlantic between Newfoundland and Ireland is just over 3000kms. This is well beyond the normal 2300km or so range for normal Sporadic-E or meteor scatter and it seems unlikely that it would be spanned a marine tropo duct going all of the ways across.

I emphasize the work unlikely but it's not impossible. The North Atlantic is not noted for its fine calm weather and there is nearly always some low pressure system in there stirring things up.

What is likely to happen a lot more often are shorter ducts that are in the region of 1000kms in length and these could happen at either end although the eastern end seems more likely. If there is a Sporadic-E opening or a major meteor shower at the same time as a good 1000km marine duct then it may well be possible.


It seems to me that the path from Newfoundland to the north-west coast of Spain as the most likely one even if it is a bit further away. The number of stable marine ducts in that part of the Atlantic are higher than further north closer to Ireland.

Updates... More news as it comes in!

Links...

1) VO1FN page on QRZ

2) F5LEN's tropo forecast


Friday, April 2, 2021

VHF Tropo forecast for the North Atlantic path - Weekend 3rd & 4th April 2021

 

According to the tropo forecast website of F5LEN, there is a chance of enhanced tropo conditions across the North Atlantic on the weekend of Saturday 3rd & Sunday 4th of April 2021.

While contacts at 144 MHz are probably unlikely, any suitably equipped stations in Ireland, the UK, France, Spain & Portugal might be interested in trying.

Frank, VO1HP reports that the following stations will be monitoring from Newfoundland mainly on the FT8 frequency of 144.174 MHz...

VO1IV Aaron - St.Johns Newfoundland - (10el yagi, FT991, 50w) - 144.174 MHz FT8

VO1DZA Graham - St.Johns Newfoundland

VO1WEB Matt - St.Johns Newfoundland

The distance across the North Atlantic is in excess of 3000kms and has yet to be bridged on 144 MHz.

* * *

Frank also reports that they plan to get their SDR Transatlantic Beacon Receiver site operational in May of 2021 when the antennas are taken out of storage.

Links...

1) F5LEN tropo prediction website


Wednesday, March 17, 2021

Did a 143 MHz signal cross the North Atlantic back in 1959???


There's a story that way back on the 14th of August 1959, there was a partial trans-Atlantic  contact between two MARS stations operating at 143.950 MHz!

(MARS - The Military Auxiliary Radio System is a United States Department of Defense sponsored program, established as a separately managed and operated program by the United States Army, and the United States Air Force.)

W1REZ in Fairfield, Connecticut was operating under the MARS callsign of AF1REZ and the station at the eastern end of the path was using the call AJ2GA at the Torrejón Air Base near Madrid in Spain.

It is alleged that each station heard the other station and audio recordings are supposed to exist. It was thought that the propagation mode was meteor scatter aided by tropo ducting formed by two high pressure systems over the North Atlantic.

I examined the locations and the path was around 7,800 kms. The date of the 14th of August would certainly tie in with the annual Perseids meteor shower.


Is this one of those stories that when it got retold multiple times, errors crept in and it became essentially like an urban myth?

Or did a VHF signal just below the 2-metre amateur radio band really cross the North Atlantic all those years ago?

Tuesday, September 1, 2020

Looking back at the first 144 MHz trans-Atlantic reception report of the Cape Verde D4C beacon in 2015

In a previous post, I reported on the first ever trans-Atlantic contact between the Canary Islands and the Caribbean on 144 MHz. As with many other posts, this generated some discussion online and I was interested to read that the first 144 MHz trans-Atlantic report to the Caribbean was back in 2015 by PJ4VHF.

To be honest, I can't remember seeing this before and it's possible that I did read it but forgot about it. As I keep a record of the 2m trans-Atlantic openings on my 144 MHz page, I thought it only right that I should do up a post about it and have a record of it here on the site.

Dave Pederson, N7BHC operated from the island of Bonaire in the Caribbean as PJ4VHF from February 2012 to June 2019. While there, he operated on the 50 MHz, 144 MHz and 432 MHz bands.


The above photo shows the antennas used by PJ4VHF at about 12 metres above ground level...a 5 element Yagi on 50 MHz (M2 6M5X), a pair of stacked 13-element Yagis on 144 MHz (Cushcraft 13B2) and a 43 element Yagi on 432 MHz (M2 43-9WL).

On the evening of the 6th of May 2015, PJ4VHF heard the Cape Verde D4C beacon on CW on 144.436 MHz for about 90 minutes (01:00 to 02:30 UTC). The distance across the Atlantic was 4,694 kms (2,917 miles).


The D4C beacon was running 20 watts into a 5-element Yagi and the CW signal was reported as being 10dB out of the noise.


The video above shows the reception of the D4C beacon on the 6th of May 2015. The morse code message reads... D4C/B HK76MV     DE D4C/B HK76MV

The reception report was subsequently confirmed by QSL card...



From the ARRL News..... Pedersen, PJ4VHF/N7BHC, on Bonaire copied a 2 meter CW signal from the D4C/B beacon on 144.436 MHz at Cape Verde via tropospheric ducting on May 6 (0100-0230 UTC). Bonaire is in the Caribbean just north of Venezuela, while Cape Verde is off the coast of Africa, west of Senegal — a distance of nearly 3000 miles.

The D4C beacon runs 20 W and is about 750 meters above sea level. Pederson was able to confirm the transmission with the beacon operator, HB9DUR. He was using a Kenwood TS-2000 and two 13 element Yagis.

“I had parked my VHF array pointing west for minimum wind resistance,” Pederson told ARRL Propagation Contributing Editor Tad Cook, K7RA. “Tuesday evening [May 5] I was doing some paperwork in the shack and rotated the beams back east at 0100 UTC to prepare for listening all night. To my amazement, I started copying CW while the beam was still 30° off the D4C bearing.”

D4C contest site on top of a mountain on the Cape Verde Islands

Later in June of 2015, NP2X received signals from a German ham visiting Cape Verde one night, and a couple of nights later he was heard by the German visitor on D4, but unfortunately no two-way contact was made.

At the time in 2015, the D4C contest site was unmanned for most of the time but in later years remote operation become possible. The reception report by PJ4VHF showed that a trans-Atlantic sea path by tropo on 144 MHz was possible and this encouraged others to make the effort.

The first trans-Atlantic contact on 144 MHz between Cape Verde and the Caribbean took place four years later in June of 2019.

More details about the various trans-Atlantic contacts on 144 MHz can be found here... https://ei7gl.blogspot.com/p/144-mhz.html

Externals links...

Thursday, August 27, 2020

Trans-Atlantic opening on 144 MHz between the Canary Islands & the Caribbean - 27th Aug 2020


It looks as if there is a remarkable tropo opening in progress at the moment with EA8CXN on the Canary Islands making contact with several stations in the Caribbean on FT8 & SSB on 144 MHz!

These are some of the stations listed on the PSK Reporter website for the 27th of August 2020...

Txmtr Rcvr Band Mode Distance Time (UTC)
NP4BM EA8CXN 2m FT8 5236 km 19:26:26
EA8CXN KP4EIT 2m FT8 5189 km 18:00:44
WP3DN EA8CXN 2m FT8 5158 km 20:18:59
WP4G EA8CXN 2m FT8 5153 km 20:25:11
J69DS EA8CXN 2m FT8 4850 km 22:04:14
FM5CS EA8CXN 2m FT8 4836 km 17:49:26
FG8OJ EA8CXN 2m FT8 4775 km 19:25:26

Note that EA8DEC was also heard across the Atlantic...

Txmtr Rcvr Band Mode Distance Time (UTC)
EA8DEC NP4BM 2m FT8 5236 km 23:30:14

Updates further down the post...

Note the distance! Several are in excess of 5000 kms which would be a new distance record for a 144 MHz contact across the Atlantic.

Back on the 8th of April 2020, D4VHF on Cape Verde worked PJ2BR on Curacao and the distance on that occasion was about 4759 kms. It looks as if the new contact by EA8CXN to NP4BM in Puerto Rico has extended that record by roughly 500 kms.

This is the tropo map from F5LEN which shows a marine duct across the Atlantic...

Note that this opening in still in progress and there does seem to be a remote possibility of an opening from the west coast of Spain & Portugal to the Caribbean!

Here are some of the screenshots of the FT8 contacts with EA8CXN...

EA8CXN and FG8OJ...


EA8CXN and WP3DN...

* * * * *
Update - 28th of August - 13:17 UTC: The trans-Atlantic path is still open on the 28th...

This is heard/sent log for EA8CXN on the PSK reporter website...
Txmtr Band Mode Distance Time (UTC)
NP4BM 2m FT8 5236 km 12:45:26
KP4EIT 2m FT8 5189 km 12:42:26
WP4JCF 2m FT8 5170 km 21:46:26
WP3DN 2m FT8 5158 km 10:53:29
WP4G 2m FT8 5153 km 11:15:26
FG5GH 2m FT8 4809 km 12:09:44
FG8OJ 2m FT8 4775 km 12:47:26

Reports for EA8DEC...
Txmtr Rcvr Band Mode Distance Time (UTC)
KP4EIT EA8DEC 2m FT8 5189 km 12:32:59
FG8OJ EA8DEC 2m FT8 4775 km 12:06:14

Reports for EA8TX...
Rcvr Band Mode Distance Time (UTC)
NP4BM 2m FT8 5219 km 12:54:44
KP4EIT 2m FT8 5173 km 12:57:44
WP3DN 2m FT8 5141 km 09:46:41
WP4G 2m FT8 5136 km 09:48:44

DX-Cluster spots for the 27th of August...
EA8DEC 144174.0 KP4EIT 23:56 27 Aug IL18SK TR FK68 FT8 Puerto Rico
EA8DEC 144174.0 NP4BM 23:39 27 Aug IL18SK - FK68 FT8 Puerto Rico

KP4EIT-@ 144174.0 EA8DEC 23:52 27 Aug -13 TNX Canary Islands
NP4BM-@ 144174.0 EA8CXN 19:07 27 Aug still strong Canary Islands
KP4EIT-@ 144280.0 EA8CXN 18:11 27 Aug swl 4/4 fk68 Canary Islands
NP4BM-@ 144174.0 EA8CXN 17:32 27 Aug calling cq Canary Islands
NP4BM-@ 144174.0 EA8CXN 17:10 27 Aug tnx ft8 qso tropo Canary Islands

EB1DJ 144174.0 KP4EIT 23:57 27 Aug  TR  FT8 -22 dB 1092 Hz Puerto Rico

Update - 28th August 2020 - 15:21 UTC: Alex, EB1DJ in the north-west of Spain reports that he got one single decode of the FT8 signal from KP4EIT in Puerto Rico.


EB1DJ 144174.0 KP4EIT 23:57 27 Aug TR FT8 -22dB

As you can see from the report above, the signal was pretty weak at -22dB so it was buried in the noise. It does however show the potential of the path and if the conditions are right, it may happen again.

To put this in context, the distance from NW Spain to Puerto Rico is just over 6000 kms!

Update - 28th August 2020 - 17:10 UTC: Video of the SSB contact on 144 MHz between EA8CXN on Tenerife on the Canary Islands and FM5CS in Martinque. Just remember, this is just a 4800 kms contact on 144 MHz across the Atlantic! ...


In this second video, EA8CXN completes another SSB contact with FG8OJ in Guadeloupe...


DX-Cluster spots for the 28th of August...
Spotter Freq. DX Time Info Country
KP4EIT-@ 144174.0 EA8CXN 19:34 28 Aug -14 thanks Cesar Canary Islands
WP4JCF 144174.0 EA8CXN 19:06 28 Aug rx -20 in kp4... Canary Islands
KP4EIT-@ 144174.0 EA8DEC 12:38 28 Aug -20 GRACIAS Canary Islands
KP4EIT-@ 144174.0 EA8TX 09:07 28 Aug SWL -12 INTO FK68 Canary Islands
KP4EIT-@ 144174.0 EA8TX 00:01 28 Aug -12 TNX Canary Islands

EA8CXN 144175.0 KP4EIT 19:33 28 Aug FK68 TR IL18 -12DB. Thanks QSO Puerto Rico
EA8TX 144174.0 KP4EIT 12:24 28 Aug hrd -2db Pse 144.260ssb Puerto Rico
EA8DEC 144174.0 FG8OJ 12:10 28 Aug IL18SK TR FK96 FT8 CQ Guadeloupe
EA8DEC 144174.0 KP4EIT 09:35 28 Aug IL18SK TR FK68 FT8 CQ Puerto Rico
EA8DEC 144174.0 WP4G 00:52 28 Aug IL18SK TR FK68 FT8 Puerto Rico

Update - 30th Aug 2020 - 09:00 UTC: EA8CXN has now put details of the opening in a post on his blog... see HERE

Summary....
EA8CXN works 7 stations in the Caribbean on FT8 and 2 on SSB.
EA8DEC works 3 on FT8.

This is the sequence of events on 144 MHz....

27th Aug 2020 - 17:08 UTC: EA8CXN completes a contact on FT8 with NP4BM in Puerto Rico. Signal reports of -9dB and -13dB are exchanged. The distance was about 5243 kms which is a new record for a trans-Atlantic contact on 144 MHz

27th Aug - 17:15 UTC: EA8CXN complete a FT8 contact with FG8OJ in Guadeloupe (~4780 kms). Reports of +25dB and -2dB are exchanged.

27th Aug - 17:20 UTC: EA8CXN and FG8OJ complete a contact on SSB.

27th Aug - 17:51 UTC: EA8 CXN completes a contact on FT8 with FM5CS in Martinique (~4842 kms). Reports of -11dB and -18dB are exchanged.

27th Aug - 17:55 UTC: EA8CXN and FM5CS complete a contact on SSB.

27th Aug - 18:20 UTC: EA8CXN completes a contact on FT8 with WP3DN (5165 kms). Reports of -12dB and -17dB are exchanged.

27th Aug - 19:24 UTC: EA8CXN completes a contact on FT8 with J69DS on St.Lucia (-4856 kms). Reports of -5dB and -6dB are exchanged.

27th Aug - 23:44 UTC: EA8DEC completes a contact on FT8 with NP4BM on Puerto Rico. Reports of -11dB and -14dB are exchanged.

28th Aug - 00:08 UTC: EA8DEC completes a contact on FT8 with KP4EIT (5193 kms). Reports of -13dB and -13dB are exchanged.

28th Aug - 00:46 UTC: EA8DEC completes a contact on FT8 with WP4G (5156 kms). Reports of -14dB and -15dB are exchanged.

28th Aug - 19:33 UTC: EA8CXN completes a contact on FT8 with KP4EIT (5196 kms). Reports of -14dB and -19dB are exchanged.

28th Aug - 21:49 UTC: EA8CXN completes a contact on FT8 with WP4JCF (5176 kms). Reports of -12dB and -9dB are exchanged.

Working conditions for EA8CXN...
Antenna: 6el BigSignal Quad
FT8 transceiver: Yaesu FT-991
SSB transceiver: Icom IC-970H
Amplifier: 500W Telecom 2m HK

Update 2nd Sept 2020: Thanks to Fernando, EA8TX for supplying the following info.


EA8TX was the third station in the Canary Islands to make contacts on 144 MHz to the Caribbean. Located on the island of Tenerife, Fernando managed to complete two FT8 contacts with KP4EIT and WP4G on Puerto Rico. 

Fernando also reports that KP4EIT peaked at -1dB on FT8 but soon faded down to -12dB to -20dB where the signal remained for a long time. Fernando speculates that a SSB contact might have been possible but it would have required trying just at the peak of the strongest signal where as the signals were well into the noise for most of the time.

Fernando also decoded NP4BM but was unable to hear the more southerly stations in Guadeloupe and Mantinue due to high ground in the way.

That pretty much closes off the post for this opening as I think that gives a good idea of what happened and who worked who. If anyone has any additional information then please let me know.

Links...