Tag Archives: MW

North American and European medium wave signals into Oxford, UK

Hi there, I’ve been rather preoccupied of late, initially with the brilliant Tecsun PL-310ET and latterly with the even more brilliant Eton Satellit. However, in the background (as always), I’ve been trying to catch transatlantic medium wave DX. My listening schedule is broadly based on shortwave DXing during daylight hours – when I’m not at work of course, typically a Friday afternoon or at weekends – and always with a portable. Evenings usually start off with a tune around the tropical bands, followed by setting up the Elad FDM DUO to run some medium wave spectrum recordings overnight. In the past few days though, my daylight DXing has been bolstered by my NooElec RTL-SDR and ‘Ham it up’ upconverter. I bought the device over a year ago and after some initial exceitement, it quickly became quite obvious that I needed a reciever with a bit more ‘oomph’! However, it’s actually proving very useful to view signals on a  spectrum, even when I’m conducting most or all of my listening on a different (i.e. higher performing) receiver. Ultimately, the RTL-SDR is always going to be a compromise, with relatively limited sensitivity, but because by it’s very nature it has excellent selectivity, overall it’s a reasonable performer. My particular RTL-SDR performs quite well if a decent antenna is employed with it, such as a longwire or the Wellbrook ALA1530 active loop.

Anyway, back to the medium wave DX. In the past month or two, I’ve copied a number of stations from North America, with really nice signals, including WRCR Rampano – New York, WFED Federal News Radio – Washington DC, WENE – Endicott and WUNR – Brookline from Newton, Mass. I’ve also recorded a lovely interval signal from RAI Radio 1, Milano and further European signals from Magyar Radio, Budapest and Radio Slovenija 1, from Ljubljana. During the past 18 months or so of DXing, I have been mostly ignoring signals coming into Oxford from the continent. However, that changed a little after I stumbled across the RAI Radio 1 interval signal, which complete with the rather rousing Italian National Anthem, inspired me to dig out some more European DX. I’m actually finding European DX quite rewarding, particularly because it feels new again – not surprising since I haven’t listened to Europeans on medium wave for any length of time since the 1980s. I hope you enjoy the reception videos – embedded video and text links follow below and I wish you all the very best DX. 


Click here to watch on YouTube

 

Click here to watch on YouTube

 

Click here to watch on YouTube

 

Click here to watch on YouTube

 

Click here to watch on YouTube

 

Click here to watch on YouTube

 

Click here to watch on youtube

 

Click here to watch on YouTube

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.

Video: Juan touts Panasonic RF-2200 performance & filter shapes

Many thanks to SWLing Post contributor, Juan Pablo Carlino, who writes:

Hi. I own one RF-2200 after buying it in eBay in March 2008. Since then it became my favourite portable radio and as everybody [has commented], its a pleasure to hear MW with it.

I explain this due to the fact that it has a good rotative ferrite antenna and also because the narrow and wide filters have a suitable shape for MW: at least in my country each MW is spaced from the other by 10 KHz, so you don’t need a very sharp filter. The narrow one is not so narrow, just enough to attenuate maybe 6 db the splatter from the louder station and not loosing audio quality.

When you tune around you have the impression that the filter shape suites perfectly for MW, making the audio quality very pleasant. I would never sell it. If you are interested i’ve captured a short clip while playing with it outdoor on 7 MHz band, hearing ham stations on AM, SSB and CW.

Pay attention to how loud and clear i was hearing stations at 400 Km in AM:

Click here to view on YouTube.

Many thanks for sharing your thoughts, Juan!

I agree with you completely. At least here in countries where MW stations are spaced at 10 kHz, I find the RF-2200 a mediumwave DX boss!

I’m constantly amazed with the RF-2200’s MW sensitivity and selectivity–and low noise floor. That combo, along with the filter shapes Juan mentions and the excellent built-in full-fidelity speaker make for a proper listening experience.

As I’ve said before, the RF-2200 is a radio with fortitude and purpose.

The only place I’ve ever really searched for an RF-2200 is eBay. I like eBay, because if you receive a faulty unit, you can typically return it or have some sort of recourse (as long as the seller accepts returns).

I would only buy an RF-2200 (or any vintage solid-state rigs) from a seller that has near 100% ratings with a number of radio sales in their past.  That is, if you’re seeking a working unit.

Though the RF-2200 is vintage and thus might eventually need repair. It’s ultimately reparable by a skilled technician, though.  My buddy Vlado, for example, has repaired 2200s in the past–indeed, we cracked my RF-2200 open a few months ago to clean contacts.

Panasonic RF-2200s typically cost between $175-300 for one that’s mechanically and cosmetically sound. Of course, NOS units go for much more and units with faults sell for much less.

I expect my RF-2200 will outlast me!

Click here to search for RF-2200s on eBay.

Transatlantic medium wave DX: 3 Canadian stations rarely heard in Oxford, UK

Hi there, I thought I’d share with you, three recent catches from Canada that I had not previously heard here in Oxford, UK, over the past 18 months of DXing. The first is VOWR, a religous station in Saint John’s, Newfoundland and Labrador. At the time of reception their TX power was 2.5 kW, thus a really pleasing catch. 800 kHz is such a difficult channel to DX in Europe due to heavy adjacent channel QRM, but the brilliant selectivity of the Elad FDM DUO operating via the FDM-SW2 software performed really well, producing mostlyy intelligble audio on LSB with an audio bandwidth filter of 2.1 kHz. Below is an embedded video and text link.

MW DX with 200 m Beverage: VOWR 800 kHz, St. John’s, N&L, first reception, with ID

The next reception video is CHHA ‘Voces Latinas’ from Toronto on 1600 kHz. This was the biggest surprise because this channel at the start of the X-band is dominated by The Caribbean Beacon, Anguilla. In fact, I would go so far as to say I’ve never heard anything else but Anguilla on 1600 kHz. The only difference in this reception is that it occurred relatively late in the morning for me – around 7:45 am. To catch CHHA for the first time, with a very clear ID was great, I hope to hear them again soon.  Below is an embedded video and text link.

Finally, a reception video of CBC Radio 1, transmitting on 1140 kHz. CBC are very often herad at my shack in Oxford, in fact, I see at least one carrier, usually with audio most evenings/mornings and often multiple signals are present across 600, 750 and 1400 KHz. However, their transmission from Sydney, Nova Scotia had never been copied previously and so this was a pleasing catch. Below is an embedded video and text link.


Thanks for reading/watching/listening and I wish you all great DX!

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.

Norway becomes first country to go “fully digital”

(Source: RadioInfo via Kris Partridge)

11th January 2017 is a historic day for the medium of radio.

Norway becomes the first country in the world to move towards fully digital radio transmissions. As a result of this, the national FM network will be switched off.

The FM networks will be switched off region by region, starting in Nordland 11th January. The event will take place in Bodø and the final switch-off will be done at 11.11 pm CET.

The heads of NRK radio and commercial radio will be in Bodø to represent the Norwegian radio industry. Also, head of BBC radio, Helen Boaden, and head of radio at EBU, Graham Dixon, will attend.

An international seminar for European broadcasters will be held the day before the historic move to FM switch-off and an international press-conference will be broadcast on radio.no at 2 pm CET.

The final program will be published nearer to the event.

Read more at: https://www.radioinfo.com.au/news/norway-makes-radio-history © Radioinfo.com.au

Medium wave SDR spectrum with over 20 transatlantic signals: a quick tour

 

Tour of a medium wave spectrum with over 20 transatlantic signals

Hi there, I thought some of the readers of SWLing Post might be interested in a review of a MW spectrum with multiple transatlantic signals – all with audio. This is one of the recordings I took with the 200 metre Beverage antenna and although I haven’t properly counted, I believe it generated about 50 catches that were either personal firsts or best-ever receptions. You will note that this video is nearly 20 minutes long, whilst the recording is only just over 5 minutes, thus to capture the signals listed below and demonstrate audio to you, it was necessary to effectively ‘rewind’ a few times. I haven’t annotated the video, however, the stations I’ve paused on to demonstrate audio are listed below. There are actually more catches in this spectrum, but hopefully the video will give you a good idea of propagation on the morning of 10/10/16 and the effectiveness of the Beverage/Elad FDM DUO combination. Also note, I didn’t have time to fully optimise the demodulation settings, so for example, I haven’t used AM SYNC in this demonstration. Individual videos of all catches, with optimised settings appear on my YouTube channel Oxford Shortwave Log. I hope you enjoy it! Recorded in Oxford UK on 10/10/16 at 02:00 hrs UTC. Thanks for watching and I wish you all great DX!


590 kHz VOCM Saint John’s
600 kHz CBNA Saint Anthony
620 kHz CKCM Grand Falls-Windsor
660 kHz WFAN New York
710 kHz WOR New York
730 kHz CKAK Montreal
750 kHz CBC Radio 1 Bonavista Bay
790 kHz WAXY (presumed)
800 kHz VOWR
970 kHz WBGG
1010 kHz CFRB Toronto
1030 kHz WBZ Boston
1130 kHz WBBR New York
1190 kHz WLIB New York
1280 WADO New York
1390 WEGP Presque Isle
1400 kHz CBC Radio 1 Gander
1440 kHz WRED Westbrook
1510 kHz WMEX Boston
1520 kHz WWKB Buffalo
1570 kHz XERF La Poderosa, Mexico
1580 kHz HJQT Verdad Radio 1580 kHz, Bogotá, Colombia
1610 kHz Caribbean Beacon, Anguilla
1660 kHz WGIT Puerto Rico


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.