Tag Archives: Shortwave Radio Recordings

Shortwave Radio Recordings: Radio Thailand English language service

Paul-Walker-Galena-Alaska

Many thanks to SWLing Post contributor, Paul Walker, who shares this recording from his home in Galena, Alaska. Paul notes:

Radio Thailand (13745 kHz) English service to North America at 0000UTC on November 8th, 2016:

Click here to view on YouTube.

Not the strongest I ever hear them, but a good solid clean nearly noise and nearly fade free signal.

That’s an impressive signal, Paul, especially considering the fact that propagation conditions have been somewhat shaky as of late. Thanks for sharing!

Oxford Shortwave Log 200 metre Beverage antenna: further MW and SW reception videos

a1-beverage

Hi there, further to my previous post regarding the initial testing of the Medium Wave Circle-design 200 metre Beverage antenna at the woods in Oxford, UK, I am pleased to share further reception videos for both the medium wave and shortwave bands. For medium wave, I operated the FDM DUO via a laptop and the FDN-SW2 software, recorded the entire band at the top of the hour and retrospectiively analysed the signals. For shortwave I utillised the FDM DUO as a standalone receiver, routing the audio via the excellent Bose Soundlink Mini 2 speaker.

As a quick recap, the antenna was terminated at the ‘front end’ with a 650 Ohm resistor into a 1 metre-long, permanent copper earthing rod that I had previously driven into the ground, away from the route taken by the general public. The actual wire was orientated in a generally westerly direction, and thus nulling signals propagating from the east. At the receiver end, I utillised my self-built transformer, wound for a 50 Ohm input impedance (14 turns on the primary), thus making the entire set-up suitable for the Elad FDM DUO. It was quite a pain to set up, taking over an hour to deploy, however, the results were very promising. A scematic diagram follows below.

beverage3

 

Links to the next group of reception videos follow:

The reception from VOCM St. Johns, Newfoundland & Labrador and WRCA Waltham, Massachusetts was unprecidented and another indication that the 200 metre Beverage configuration is demonstrating excellent SNR performance. Similarly, the reception of Radio Nacional Brazilia was an improvement on any signal I’d previously recorded with any receiver or antenna. Finally, the signal received from Radio Huanta 2000 – one of the more exotic stations on the Tropical Band and rarely heard in Europe – delivered discernible audio with this set-up, whereas previously I had only ever observed a carrier. All-in-all a very pleasing result, with more reception videos using this antenna set-up to follow in the coming weeks.

Right now I’m uploading SW and MW reception videos to my YouTube channel, recorded during my two week trip to Pará in Northern Brazil – it was really interesting to check out what can be heard on the radio in the middle of what is a very remote area of tropical rainforest. I hope you find the time to take a look.  In the meantime, thank you for watching/ listening and I wish you all good DX.


 

MW DX with the 200 metre Beverage: WRCA 1330 kHz, Waltham Mass., big signal/ clear IDs!

 

 

 

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

South American shortwave catches, rarely heard in Europe

RCRI

r9djHi there, I thought I would share some DX catches, all of which are rarely reported in Europe and yet I was fortunate enough to catch in Oxford UK, using a couple of different set-ups. The first is Radio Chaski Red Integridad from Urubamba Cusco, Peru, heard using an Elad FDM DUO and Wellbrook ALA1530 active loop antenna (indoors). The two subsequent receptions originate from Brazil; Radio 9 de Julho, Sao Paulo and Radio Transmundial,Santa-maria rtmCamobi, both of which were caught using the venerable Sony ICF-2001D portable receiver and my 200 metre longwire antenna. In all three cases, persistence was necessary whilst optimum conditions of propagation aligned with my listening schedule at home and my less frequent, but regular DX’peditions.

I am soon to deploy a 200 metre Beverage with adjustable termination resistance for nulling ‘rearward’ signals and matching transformers suitable for 75 and 50 Ohm receiver antenna inputs. I hope this will further improve my reception capability on both the MW and SW bands.  Another post specific to that project is in the pipeline, but in the meantime, thanks for reading/ watching and I wish you all very good DX.

 


 

Direct link to Oxford Shortwave Log for Radio Chaski Red Integridad reception video

 

Direct link to Oxford Shortwave Log for Radio 9 de Julho reception video

 

Direct link to Oxford Shortwave Log for Radio Transmundial reception video


Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

Tropical Band DXing at home with Elad FDM DUO and Wellbrook ALA1530 active loop

2-jungleRecently I have spent a little more time listening out for Tropical Band stations from my shack in Oxford UK, attempting to emulate some of the very nice signals I have previously recorded out on DX’peditions. The obvious problems with this (and they are numerous) include the relatively weak signal strength of many tropical band stations, the ubiquitous blanket of QRM, resulting in generally poor SNR, lack of space for a large antenna……need I go on?! Fortunately, the Elad FDM DUO has proven to be a very senstive and selective receiver, capable of, at times, incredible SNR, coupled with almost limitless signal conditioning options and SSB, SYNC, ECSS etc. Throw the Wellbrook ALA1530 active loop into the mix (not literally!) and you have a very powerful Tropical Band receive set-up. The Wellbrook is able to null most (although not all) QRM in my shack and that really can make the difference between simply observing a carrier and actually hearing audio. Clearly one cannot expect to hear DX at home under heavy QRM as well as you might outdoors, however, the following stations were logged in the past month or so, with respectable signals, with the ALA1530 indoors:

Video links also follow below, thanks for reading/ watching.

Direct link to Oxford Shortwave Log video; Radio Logos 4810 kHz, Peru

Direct link to Oxford Shortwave Log video; Radio Cultura Ondas Manaus 4845 kHz, Brazil

Direct link to Oxford Shortwave Log video; AIR Bhopal 4810 kHz, India

Direct link to Oxford Shortwave Log video; Rádio Educação Rural 4925.2 kHz, Tefé, Brazil

Direct link to Oxford Shortwave Log video; Radio Mosoj Chaski 3310 kHz, Bolivia

 

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

Myanmar Radio, Yangon, heard in Oxford UK on 49 and 41 metres

Myanmar

Hi there, I thought some of the readers of SWLing post might be interested in my reception of Mayanmar Radio, Yangon, during a late-night DX’pedition in Oxfordshire, UK. I managed to catch them on 5985 and 7200 kHz; the latter was a personal first and perhaps further confirmation that my 200 metre longwire is contributing in a positive way to my mobile listening post. Subscribers and regular visitors to Oxford Shortwave Log on YouTube will know that I am forever trying to push the performance of my vintage portables to the limit of what’s possible, in the hope that I might hear something very exotic. it’s happened once or twice and thus worth all the effort in the small hours. Thanks for watching/ listening.

Direct link to Oxford Shortwave Log for Mayanmar Radio reception video 5985 kHz

Direct link to Oxford Shortwave Log for Mayanmar Radio reception video 7200 kHz

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.