90m band D-layer test at the end of the eclipse: Shannon VOLMET 3413 kHz - poor signal returns

 Hi there, as the influence of the eclipse diminishes and 90m band conditions return to normal, the signal from Shannon has degraded significantly - as expected.

Links to previous videos in this series:    • 90m band D-layer test during the eclipse: ...      • 90m band D-layer test during the eclipse: ...      • 90m band D-layer test during the eclipse: ...   Recorded in Oxford UK, using an Elad FDM DUOr and a Wellbrook ALA1530 magnetic loop (outdoors). Thanks for watching and 73.

https://www.youtube.com/watch?v=DfbDcHxTLkc

90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz at 18:19 UTC - 5 minutes after max

 https://www.youtube.com/watch?v=e8p9Xtl0kgs

Hi there, the signal from Shannon VOLMET was even stronger, a few minutes after the eclipse maximum. Perhaps there is a time-constant associated with D-layer absorption? Final video to come, detailing how the signal had deteriorated again after the eclipse had finished. Here is a link to the previous videos, recorded 35 minutes from maxium and at maximum:    • 90m band D-layer test during the eclipse: ...      • 90m band D-layer test during the eclipse: ...   Recorded in Oxford on the 12th of August at 18:17 hrs UTC, using an Elad FDM DUOr and a Wellbrook ALA1530 magnetic loop antenna (outdoors) via an NTi AntennaJet RF splitter and GI1000 galvanic isolator. Thanks for watching and 73.

90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz - much improved signal at maximum

 https://www.youtube.com/watch?v=qNQUJoSxz1I

Hi there, as expected, the 90m band signal from Shannon was much stronger just before and through the maximum of the solar eclipse. Here is a link to the previous video, recorded 35 minutes from maxium:    • 90m band D-layer test during the eclipse: ...   Recorded in Oxford on the 12th of August at 18:12 hrs UTC, using an Elad FDM DUOr and a Wellbrook ALA1530 magnetic loop antenna (outdoors) via an NTi AntennaJet RF splitter and GI1000 galvanic isolator. Thanks for watching and 73.

90m band D-layer test during the eclipse: Shannon VOLMET 3413 kHz at 17:38 UTC - 35 mins to maximum

 https://www.youtube.com/watch?v=E53wqr_SM4o

Hi there, this is the first of four videos detailing a propagation test recorded during the 12th of  August 2026 total solar eclipse, monitoring Shannon VOLMET on 3413 kHz (90m) starting at 17:38 UTC, which was approximately 35 minutes ahead of maximum eclipse.

The 90m band sits right in the region most affected by daylight hours D-layer absorption, which is driven by solar UV/X-ray ionisation of the lower ionosphere. During a solar eclipse, that ionising radiation is temporarily reduced over the observing path, so a reduction in D-layer absorption and a corresponding improvement in received signal strength on lower HF frequencies should be observable. That's the theory anyway! Next video will demonstrate the signal from Shannon at maximum eclipse.

Recorded in Oxford UK using an Elad FDM-DUOr and a Wellbrook ALA1530 magnetic loop antenna.

Thanks for watching and 73.

One of my final recordings: BBC Radio 4 longwave 198 kHz Shipping Forecast copied on the JRC NRD535

 https://www.youtube.com/watch?v=bqSvvvomQh8

Hi there, very nice longwave AM audio with the NRD535 - much nicer than the sometimes slightly muddy sound from the 525. That isn't to say the 525 isn't a great receiver - it really is one of the best ever. As for Radio 4 on longwave...what a shame it's nearly all over (and now it is). Recorded on 05/06/26 at 00:48 hrs BST. Thanks for watching and 73.

S30 'The Pip' on 3756 kHz and the Squeaky Wheel - now another 'pip' on 3363 kHz copied in Oxford UK

 https://www.youtube.com/watch?v=aUPO0ljhmUk

Hi there, I guess we are referring to both of these signals as the Pip - well I am at least. There's still life on the shortwave bands! Recorded on 08/07/26 at 00:23 hrs UTC using a JRC NRD535 and a long-wire antenna. Thanks for watching and 73.

SW Bangkok Meteorological Radio 8743 KHz copied in the UK using the JRC NRD535 with antenna matching

 https://www.youtube.com/watch?v=tkcxkPrcsR0

Hi there, I never get tired of copying this signal. Often a challenge, for sure, but that makes it all the most satisfying when I hear them - and particularly their 'ice cream van' interval tones! Recorded on 27/07/26 at 23:35 hrs UTC using a Wellbrook ALA1530 magnetic loop as the auxiliary and end-fed wire as the main antenna, into my MFJ noise cancelling unit. Thanks for watching and 73.

"Siberian Village Radio" drifting around 3020.3 kHz AM with the Yaesu FRG-100 and Wellbrook ALA1530

 https://www.youtube.com/watch?v=SqiGImwwQ28

Hi there, here's a throwback to times gone by...AM radio comms in very remote locations...using (I understand) old military radio gear in AM. Recorded in Oxford UK on 31/05/26 at 23:15 hrs UTC. Thanks for watching and 73.

Rádio Nacional da Amazônia 11780 kHz, Brazil copied in Oxford UK at 00:35: hrs UTC using the IC-R75

 https://www.youtube.com/watch?v=zNPQrbM1S6w

Hi there, for obvious reasons, this signal is a difficult catch in the early hours of the morning, UK time. I was therefore pleased to have copied sufficient audio to warrant making this reception video. Recorded using a Wellbrook ALA1530 magnetic loop antenna. Thanks for watching and 73.

Radio Pilipinas 15190.2 kHz copied on the JRC NRD535 with noise cancelling and antenna matching

 https://www.youtube.com/watch?v=Em3r1_98l-k

Hi there, not heard these guys for over two years, so great to copy them again with the NRD535. I had to use SSB because of adjacent channel noise, but nevertheless, decent audio with the assistance of the Bose speaker.

Recorded in Oxford UK on 25/07/26 at 17:58 hrs UTC using a Wellbrook ALA1530 magnetic loop as the auxiliary and end-fed wire as the main antenna.

Thanks for watching and 73.

Roma Radio IAR 2680 kHz marine meteorological broadcasts for shipping, Cagliari, Sardinia

 https://www.youtube.com/watch?v=-eVvmcRfvfk

Hi there, haven't heard Roma Radio for a long while, so good to hear their transmission again on 2680 kHz with the Yaesu FRG-100 coupled to the Wellbrook ALA1530 magnetic loop antenna. Recorded in Oxford UK on 30/05/26 at 23:04 hrs UTC.

Contact with GB9NWRC special event station for the North West Radio Camp 2026, Wrightington, Lancs

 https://www.youtube.com/watch?v=43L-R6tk9fY

Hi there, here is my contact with the special event station for the North West Radio Camp 2026. The event was hosted by Leyland and District Amateur Radio Club. Thanks for watching and 73.

Recent world events according to North Korea in English; very strong signal on 15.2452 MHz

 https://www.youtube.com/watch?v=EPTrWifBSX0

Hi there, it doesn't matter whether you agree or disagree with the DPRK, listening directly to how North Korea interprets what's going on in the world is always compelling as someone who loves radio and DXing. Recorded on25/07/26 18:09 hrs UTC using a JRC NRD535 via an MFJ noise cancelling unit and Howes antenning matcher. Audio via a Bose SoundLink Mini 2 speaker. Thanks for watching and 73.

Radio Mali 5995 kHz Bamako copied this morning with the Yaesu FRG-8800 and NTi MegaLoop FX

 https://www.youtube.com/watch?v=QoKiQiROuRw

Hi there, nice to hear Radio Mali again, this time on one of my vintage receivers. It appears that shortwave radio is alive and kicking in that part of Africa! Recorded in Oxford UK on 12/08/26 at 23:35 hrs UTC. Thanks for watching and 73.

Hard-core DX: Radio Mosoj Chaski 3310 kHz Bolivia, copied with the Icom IC-R75 and a Wellbrook loop

 https://www.youtube.com/watch?v=7ZzKuU2iSfc

Hi there, great to hear some audio from Radio Mosoj Chaski again, this time on the brilliant IC-R75. This is one of the most difficult DX targets from Europe. Recorded in Oxford UK on 29/05/26 at 00:10 hrs UTC. Thanks for watching and 73.

CHU Canada time signal on 7850 kHz - copied with the JRC NRD535 via the MFJ noise cancelling system

 https://www.youtube.com/watch?v=p1pOj0o5_FY

Hi there, this was one of my last recordings of CHU on this frequency. I set up another timed recording with the Elad the same night and went to bed! Recorded on 22/06/26 at 23:57 hrs UTC using an end-fed wire antenna. Thanks for watching and 73.

Optimizing the signal from Radio Tarma 4775 kHz Peru with an MFJ Noise Cancelling Signal Enhancer

 https://www.youtube.com/watch?v=3rX-_fmGXbk

Hi there, I decided to plug in the MFJ in an attempt to further clean up the signal from Radio Tarma. I haven't followed the instructions - it was way too late to get into that, so the settings for this video are based on my perception of the best signal. Recorded in Oxford UK on 17/06/26 at 01:17 hrs UTC using an end-fed long wire antenna. Thanks for watching and 73.

Musical interludes from the Voice of Korea (DPRK) on 12015 kHz using the Icom IC-R8600

 https://www.youtube.com/watch?v=T_fWSLAgmKo

Hi there, a decent copy of the Voice of Korea on a warm afternoon - 21/05/26 at 15:52 hrs UTC using one of my Wellbrook ALA1530 magnetic loops, via the Bonito/NTi AntennaJet RF splitter. Thanks for watching and 73.

Rádio Nacional da Amazônia 6180 kHz, Brazil, booming into Oxford on the IC-R75 and Wellbrook loop

 https://www.youtube.com/watch?v=M2EDAH6b9e0

Hi there, this is one of the strongest regional stations on shortwave...but it has a large area to cover anyway....Brazil is a large country. The IC-R75 is so good on sideband, but when adjacent signals allow, AM Wide delivers quite nice audio. Recorded in Oxford UK on 29/05/26 at xx:xx hrs UTC. Thanks for watching and 73.

Audio copied from Radio Tarma, Peru 4775 kHz using the brilliant Icom IC-R75 - more hard-core DX

 https://www.youtube.com/watch?v=MFdbRLaM1YQ

Hi there, I was wondering whether Tarma were TXing on reduced power....but here they are again, this time on the wonderful IC-R75 Recorded in Oxford UK on 29/05/26 at 00:30 hrs UTC using a Wellbrook ALA1530 magnetic loop antenna (outdoors). Thanks for watching and 73.

Rare audio from Radio Mosoj Chaski 3310 kHz Bolivia - this is proper hard-core DX!

 https://www.youtube.com/watch?v=Q5QWZaP9Gh0

Mosoj Chaski is one of those stations that can be almost impossible to hear from Europe, so DX that can be obtainable doesn't come much more challenging than this. Recorded in Oxford UK on 20/05/26 at 00:32 hrs UTC using a Wellbrook ALA1530 magnetic loop antenna, via a Bonito/NTi AntennaJet RF splitter and a GI1000 galvanic isolator. Thanks for watching and 73.