Category Archives: Mediumwave

Radio Caroline: AM service to open on Friday, December 22

(Source: Southgate ARC via Mike Terry)

Radio Caroline AM service to open

Weather and technology permitting, our programmes on 648 kHz will commence originating from the Ross Revenge at 7.00 AM on Friday 22nd December.

The changed schedule for the day will be :

7am    Johnny Lewis
9am    Top Fifteen
10am   Ray Clark – with the official launch at midday.
2pm    Kevin Turner
5pm    Resume normal programmes

No doubt Bob Lawrence, Martin Fisher and Jerry Wright will personalise their evening shows to mark the day.

Of course we are delighted to have found and secured what must be the best possible AM transmission site for our service. We thank Cobra Mist Ltd for this facility whilst noting that this is a private site which cannot at this time be visited.

So, another date for the Radio Caroline calendar of events and the inevitable question. Where do we go from here?

Radio Caroline

Don shares spectrum recordings from northern Peru

Many thanks to SWLing Post contributor, Don Moore, who writes:

I’ve been traveling through northern Peru and I’ve made some SDR recordings along the way – medium wave, long wave, and some shortwave meter bands. I hope to eventually get through them all!

I have also uploaded some recordings to a shared Google drive so that other DXers can hear what the bands sound like in northeastern Peru, on the edge of the Amazon jungle. Maybe some of the blog readers would be interested in this. You will need the below link to see the SDR files and an explanatory document. I plan to add a few more once I get another hotel with a good Internet connection again.

Click here to download.

Fantastic, Don!  Thank you for sharing your spectrum recordings!

Post readers: If you don’t already have HDSDR installed on your PC, you’ll need to grab it here. HDSDR is free and can playback these spectrum recordings. Once installed, simply press the “play” button on the HDSDR console and point HDSDR to the downloaded spectrum file. You’ll be tuning through Peruvian spectrum in no time!

Also, check out Don Moore’s excellent blog: http://www.donmooredxer.com 

How to find North American stations broadcasting in C-QUAM AM Stereo

Many thanks to SWLing Post contributor, Dave Zantow (N9EWO), who writes:

Just how many MW stations in North America are broadcasting in “C-QUAM AM Stereo” these days?? I found this reference which appears to be the most accurate list around the internet.

http://www.meduci.com/stations.html

I have taken this list and have edited it and converted to a PDF file [click here to download].

Best way to catch a AM Stereo signal these days is with a SDR device. We have been using Bernd Reiser’s “SoDiRa” program (version 0.100 Preview 24) with a SDRPlay RSP1 and does an excellent job with C-QUAM AM Stereo decoding.

http://www.dsp4swls.de/sodira/sodiraeng.html

During sky wave nighttime conditions we received CFCO in Chatham Ontario well of late on 630 kHz in AM STEREO (country music format). Program also appears to have built in DRM and DRM+ decoding (we have not tested this part of the program). IMPORTANT NOTE : We found we needed to use the older EXTIO version 3.7 otherwise we encountered errors with OUR connected Windows 7 PC’s (your situation may vary).

Dan Robinson’s JRC NRD-545

Not to forget that the JRC NRD-545 receiver has “built in” AM Stereo decoding (AMS mode). One MUST use the phono jack “line outputs” on the rear panel connected to an external amplifier etc. It does NOT output via it’s headphone connector. Speaking of the JRC NRD-545, please see my web page for late important service information on my “Radio News” webpage.

http://webpages.charter.net/n9ewo2/news.html

Thanks for the tip, Dave!

The last time I listened to a C-QUAM AM stereo station it was with WNNC station owner/manager, Dave Lingafelt. We sat in his beautiful red Buick Reatta, parked at the station and transmitter site and listened to 1970s rock on 1230 kHz.  Needless to say, it sounded absolutely amazing! Indeed, all of Dave Lingafelt’s stations (WNNC, WAIZ and WXRC) sound amazing.

To listen to an AM station in stereo is a real treat. Thanks for reminding us, Dave!

Radio New Zealand plans to exit AM radio

(Source: Stuff.co.nz via Trevor R)

[…]In the longer term, the report raised RNZ’s wish to divest from broadcasting infrastructure.

“RNZ currently owns a significant property portfolio and other related equipment required to support its AM radio services,” it said. “While the AM audience is declining, the cost of maintenance and upkeep of the property, buildings and AM equipment is increasing.”

The report went on to say RNZ was sitting on potentially lucrative land, that could be used for housing.

“RNZ considers it is now time to work with stakeholders to develop plans to, either partially or completely, exit AM broadcasting over time,” the report said.

Thompson said RNZ’s plan to sell of its transition sites would likely take more than a decade. It had just invested in a new AM tower in Titahi Bay, Wellington, that he said cost “millions”.

Through its network of transmission towers, RNZ was also responsible for broadcasting other radio stations including Newstalk ZB and iwi radio stations.

“We think we’re an audience and content organisation, not an infrastructure organisation,” Thompson said.

If RNZ was to sell or close its AM towers, he said the Government would need to make the call. The other broadcasters would also need to be consulted.

Read the full article at Stuff.co.nz by clicking here.

Video: Ivan compares the SDRplay RSP1 and RSP1A

Many thanks to SWLing Post contributor, Ivan Cholakov (NO2CW), who shares the following video and notes:

Comparing side to side reception performance on RSP1A vs. RSP1 on medium wave and shortwave using SDR Console 3.

Audio level is uneven because two laptops were used. Antenna is the same, 80m OCF dipole.

Click here to view on YouTube.

BBC MW stations in Lincolnshire and Nottingham to close

(Source: Southgate ARC)

More BBC AM transmitters to close

On the British DX Club (BDXC) Yahoo Group Nick Buxton reports that BBC AM stations in Lincolnshire and Nottingham are to close

In his post Nick says:

In an e-mail reply today (29/11) from Andy Roche, BBC R. Lincolnshire’s Acting Programme Editor, he says 1368 kHz will cease broadcasting their programmes on 6 January 2018. It will continue until 28 January 2018 running a continuous loop advising re-tune to FM/DAB. They will shortly be running a campaign to let people know.

In a very brief e-mail reply from BBC Radio Nottingham, enquiring about closure of their 1584 kHz service, they advise “No transmission from late December. Re-tune now”

No reply received from BBC R. Humberside concerning their 1485 kHz transmitter….

British DX Club (BDXC)
http://bdxc.org.uk/
https://groups.yahoo.com/group/BDXC-News

C. Crane CCRadio-EP Pro: a new enhanced version of the EP

Many thanks to SWLing Post contributor, Troy Riedel, who notes that C. Crane has developed an enhanced version of the original CCRadio-EP AM/FM portable.

C. Crane includes the following description on their website:

The new CC Radio-EP PRO is an enhanced version of the original EP. It has the same simple controls and the same high performance with superior selectivity and sensitivity. The portable CCRadio-EP PRO could be considered a super radio; built for ease of use and outstanding long-range AM with our C. Crane patented Twin Coil Ferrite® AM Antenna. FM performance is excellent.

Great for listening to Talk Radio, NPR®, Music, and Sports. The EP PRO has a wide bass and treble adjustment range for defined music and accurate and lively voice reproduction.

A large, 5-inch speaker is combined with a hi-fidelity amplifier and a “Wide/Narrow” enhancement dial to give extra clarity to AM programs. The dial accuracy of the new EP PRO is superior to our original model. Weight: 3.1 lbs. (without batteries). Size: 11.4″ W x 7.3″ H x 2.75″ D. Runs on four optional “D” batteries (not included). AC adapter is included.

C.Crane lists a shipping date of March 30, 2018 or after.

Since I receive so many questions about affordable radios for mediumwave DXing, I’ll certainly review the CCRadio-EP Pro when it’s available. I look forward to evaluating out a radio with such simple controls!

Click here to check the CCRadio-EP Pro on C. Crane’s website.