Showing posts with label EI7HBB. Show all posts
Showing posts with label EI7HBB. Show all posts

Tuesday, June 23, 2020

Reception video of S50B in Slovenia on 40 MHz - 22nd June 2020


Up to now, I've seen videos online of some of the beacons on the 40 MHz being heard. This is I believe the first reception video of someone actually talking on the new 8-metre band.

To put everything into context, I have generated a map as seen above.

Borut, S50B in Slovenia heard the Irish beacon near Dublin on 40.013 MHz and then went on to work Lloyd, EI7HBB in the west of Ireland on 40.680 MHz. This distance is about 1800kms.

Paul, G7PUV in the south-east of England was monitoring the band with an SDR receiver which had the ability to record everything on the band.

As the map shows, G7PUV is about 1200kms from S50B which is a typical distance for Sporadic-E on 40 MHz with a good opening. EI7HBB on the other hand is just 600kms away and well inside the skip zone of Sp-E. It might be possible for G7PUV to hear EI7HBB via Sporadic-E but it would need an intense opening.

As a result, the video from G7PUV just has the voice of S50B and EI7HBB is missing. It also has a sample of the many noises to he heard in the ISM band on 40 MHz.

Wednesday, May 13, 2020

Crossband activity on 40 MHz - Mon 11th May 2020


There was an extensive Sporadic-E opening on Monday the 11th of May 2020 with strong signals across Europe on the 28 MHz and 50 MHz bands.

The new 40 MHz band was also open and the image above is a screenshot I took of the DXMaps 40 MHz page on the day.

Lloyd, EI7HBB ...Lloyd managed to work OE1HHB in Austria on SSB for a 40 MHz to 50 MHz crossband contact at 18:18 UTC. Lloyd comments that he received a signal report of 5/3 on 40 MHz with the Austrian station being 5/5 on 50 MHz. He also notes that that he received a 5/8 for their simplex contact on 50 MHz and speculates that the difference is due to resonant and non-resonant antennas for the respective bands.

Lloyd also worked the club station DL0AA in Germany for another 8m/6m SSB crossband contact at 18:35 UTC. For the simplex contact on 50 MHz, there was an exchange of 5/9 both ways. On 40 MHz, the German station gave Lloyd a reception report of 5/3.

Lloyd also reports nearly working a French station crossband but lost him in QSB.

DX-Cluster spots...
EI7HBB 40680.0 DL0AA 18:36 11 May cross band 50130 Fed. Rep. of Germany (Corrected from initial DL9AAA spot)
EI7HBB 40680.0 OE1HHB 18:18 11 May cross band 50152 Austria

Tim, EI4GNB ...Tim managed to complete an FT8 crossband contact with OE3EMC in Austria.

FT8 contact between EI4GNB on 40 MHz and OE3EMC on 28 MHz

FT8 contact between EI4GNB on 40 MHz and OE3EMC on 28 MHz

EI4GNB calling CQ crossband on 40 MHz

DX-Cluster spots...
OE3EMC 40220.0 EI4GNB 19:15 11 May JN78JO<ES>IO63 tnx Crossband 8 Ireland
OE3EMC 40220.0 EI4GNB 19:01 11 May JN78JO<ES>IO63 i call you 5031 Ireland
EA3ERE 40220.0 EI4GNB 19:00 11 May FT8 -23 dB cq XBAND 8m/6m Ireland
EA3ERE 40220.0 EI4GNB 18:49 11 May FT8 -23 dB 1786 Hz cq Ireland
OE3EMC 40220.0 EI4GNB 18:47 11 May JN78JO<ES>IO63 Ireland
9A5CW 40220.0 EI4GNB 18:37 11 May FT8 -5 dB 1532 Hz Ireland

Links...
1) Lots of info and links on my 40 MHz page
2) DXMaps website ... Look for the dedicated 40 MHz propagation map

Tuesday, April 21, 2020

Opening to Denmark on 40 MHz - Tues 21st April 2020


There was a good Sporadic-E opening on Tuesday the 21st of April 2020 with three stations reporting reception of the  OZ7IGY beacon in Denmark on 40.071 MHz.

The screenshot above is from the DXMaps website which has a special page for 40 MHz reports.

Considering the low level of activity on the 40 MHz band, this page is normally blank so it was unusual today to see three traces on it!

These are some of the 40 MHz spots from the DX-Cluster...

EI7GL-@ 40071.0 OZ7IGY 13:12 21 Apr PI4 -6 dB Q=98 (es) Denmark
G7CNF 40071.0 OZ7IGY/B 12:39 21 Apr 559 Denmark
EI7GL-@ 40070.0 OZ7IGY 12:20 21 Apr PI4 -4 dB Q=100 (es) Denmark
EI7GL 40070.0 OZ7IGY/B 12:19 21 Apr IO51TUJO55WM Denmark
EI7GL-@ 40070.0 OZ7IGY 12:15 21 Apr PI4 -3 dB Q=100 Denmark
EI7HBB 40071.0 OZ7IGY 11:43 21 Apr Denmark
EI7HBB 40071.0 OZ7IGY/B 11:36 21 Apr 539 Denmark

Lloyd, EI7HBB was the first to spot the OZ7IGY beacon on 40 MHz at 11:36 UTC.

I came across the 28 MHZ version of the beacon at 12:01 UTC during a scan of the band. As the 10-metre signal was strong, I then had a listen on 40 MHz and sure enough, the 8-metre beacon was audible. I spotted it on the cluster at 12:15 UTC.

The distance from the beacon is about 1350 kms for Lloyd and 1390 kms for me.

At 12:39 UTC, G7CNF spotted the  beacon from the south-west of England.

The PI4 in the cluster spot refers to the PI4 software which decodes the OZ7IGY signal which alternates between giving out its ID in morse and in PI4.

The amazing thing about the PI4 software is that it can hear the signal buried in the noise. At one stage, it decoded a -18dB signal and I could hear nothing.

More information about this beacon and the PI4 software can be found on the OZ7IGY website.

This is a screen shot of the PI4 software...

Tuesday, July 2, 2019

First 40 MHz Crossband contact between Ireland and Norway - 28th June 2019


On Friday the 28th of June 2019, Lloyd EI7HBB in the west of Ireland managed to complete a 40 MHz to 28 MHz cross band SSB contact with LA4UOA in Norway, a first for the new 8-metre band.

EI7HBB was running 4 watts on 40 MHz from one of the Ukrainian transverters into a home made 2 element Moxon in the loft space of his house. He was listening to the LA station on 28.400 MHz.

Lloyd reports that LA4UOA was 5/9 on 28.400 MHz while he received a 5/2 report on 40.250 MHz in Norway. The distance was 1108 kms.

EI7HBB 40250.0 LA4UOA 09:37 28 Jun IO53SQ - JO38QH cross band 28.4 Norway

What was interesting about this contact was that 50 MHz didn't seem to be open at the time. The maximum usable frequency (MUF) had reached as high as 40 MHz but not 50 MHz.

This shows the value of the new 40 MHz band. It's a long way from 28 MHz to 50 MHz and by having a band in between ten and six metres, it will give a better idea of where the maximum usable frequency is.

Thursday, June 20, 2019

Big opening from Ireland to Denmark on 40 MHz - Wed 19th June 2019

Sporadic-E conditions were really good on Wednesday the 19th of June 2019 with some very strong signals on 28 MHz. Propagation extended up into the VHF bands as well with the OZ7IGY beacon in Denmark being heard in Ireland on 28 MHz, 40 MHz and 50 MHz.

The beacon on 40.071 MHz was audible in Ireland for several hours during the morning and was very strong at times.

40 MHz Crossband Contacts... Lloyd EI7HBB in the west of Ireland made the best of conditions to make a 8m/6m crossband SSB contact with SM6BCD in Sweden. This is probably a first EI/SM crossband  contact for 8 metres.


EI7HBB was running 4 watts on 40.250 MHz from one of the Ukrainian transverters into a home made 2 element Moxon in the loft space of his house. He was listening to the Swedish station using a 4 element Moxon on 50.150 MHz.

The distance was 1343 kms.

2019-06-19 10:30:39 EI7HBB (IO53SQ) 40.250 SM6BCD (JO57WQ) 1343 IO53SQ JO57WQ cross band 50150

OZ7IGY Beacon... The OZ7IGY beacon on 40.071 MHz was logged by both Don EI8DJ and myself.


EI8DJ was using a Yaesu FT817 with a ground mounted HF vertical antenna to receive the beacon.

I found that I was getting some really strong signals with my 28 MHz vertical half-wave. I also found out by accident that I could actually hear it with a 2m Slim Jim!

It's probably fair to say that any sort of wire antenna would have heard the signal as long as the local interference was low.

Both EI8DJ and myself used the PI4 software to decode the beacon and to upload the spots to the cluster with Don doing it on three bands.