Monthly Archives: August 2017

Practical Wireless and RadioUser magazines have new owner

(Source: Southgate ARC)

New owner for Practical Wireless and RadioUser magazines

Roger Hall & Steve Hunt have made the following announcement on the PW Publishing website:

We are very pleased to announce that Practical Wireless and RadioUsermagazines have been bought by Warners Group Publications, a Lincolnshire-based multi-million-pound turnover publishing company that specialises in producing magazines, websites and events for niche hobbies. 

They believe that both Practical Wireless and RadioUser are an ideal fit with their business and have assured us they plan to use their publishing expertise and size to help develop both titles, giving them an assured long-term future.

Both Steve and I are aware that we were only the most recent custodians of two historic titles, Practical Wireless dating from 1932 and the RadioUser with its roots in Short Wave Magazine from 1937.
That’s why, when we decided to retire after being in publishing for almost 40 years, first with IPC and then with PW Publishing, 
we felt it was important to find a reputable company with the expertise and resources to make sure they will continue to be published for many years to come. In Warners, we believe we have found just such a company and both PW and RU will continue to be the country’s best-selling radio magazines

Over the next few weeks we will be handing over all aspect of our business to Warners and they will be publishing both titles from the October issues onwards.

The new Publisher will be Rob McDonnell ([email protected]) and the new Group Advertising Manager will be Claire Ingram ([email protected])

Our existing Editors, Don Field and Georg Wiessala, will remain with their respective magazines. In addition, I will be staying on in a consultancy role to help with the transition and to assist Warners going forwards.

We’d both like to thank all of you for the support you’ve given us and the magazines in the past; it’s been an interesting few decades.

For the next three months, Webscribe will continue to administer subscriptions, to assure a seamless handover, and new contact details will be forthcoming in due course.

Roger Hall & Steve Hunt
PW Publishing Limited
http://www.pwpublishing.ltd.uk

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Reminder: 2017 Eclipse Experiment

A map of the United States showing the path of totality for the August 21, 2017 total solar eclipse. (Source: NASA)

The 2017 eclipse is quickly approaching (August 21)–!!

If you would like to participate in a fascinating radio experiment coinciding with the event, check out this undertaking outlined on the website HamSCI. Note that you do not need to be in the path of totality in order to participate.

Here’s the summary:

On 21 August 2017, a total solar eclipse will traverse the continental United States from Oregon to South Carolina in a period of just over 90 minutes.

Previous research shows that the shadow of the eclipse will impact the ionospheric state, but has not adequately characterized or explained the temporal and spatial extent of the resulting ionospheric effects.

HamSCI is inviting the amateur radio community to contribute to a large scale experiment by participating in an Eclipse QSO party and further developing automatic observation networks such as the Reverse Beacon Network.

Data resulting from these activities will be combined with observations from existing ionospheric monitoring networks in an effort to characterize and understand the ionospheric temporal and spatial effects caused by a total solar eclipse.

Click here to read the full detailed experiment at HamSCI online.

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Review of the Gospell GR-216 portable DRM multi-band radio

Many thanks to SWLing Post contributor, Ed, who writes:

Here’s a review on a Swedish Hobby Radio website of the GOSPELL GR-216 MULTI-BAND AM / FM /Shortwave / DRM receiver, which you reported about on 9/6/2016 and is now is reportedly about to go into production:

http://www.hobbyradio.se/en/drm/gospell_en.html

The latest Mediumwave / Shortwave / VHF-FM receiver GR-216 from Gospell can receive both digital and analogue mediumwave and shortwave signals as well as VHF FM broadcasts. The software-defined receiver is based on a NXP chipset. The firmware may easily be updated over the USB connector on the front.

The size of the radio is 240 mm (w) x 120 mm (h) x 150 mm (d) (without the knobs). It is supplied with a 230 VAC power cord, a 230 VAC / 9 VDC power supply and a user’s manual. Its retail price is about xx USD.

The radio has a pleasant design like your favorite kitchen radio but it is also fit for any livingroom. Unlike other products the GR-216 has a soft and clean design and all buttons and controls are easy to operate. It weighs about 2 kg and sits firmly on a table or a shelf. Much of the weight comes from its large loudspeaker (77 mm diameter) and the mains transformer. The two strips on the bottom of the cabinet prevents the GR-216 from slipping around when tuning or pressing the pushbuttons. The AF output power amplifier is 4 W.

There is also a 12 or 24 hour clock and a dual alarm clock (radio or buzzer) and a sleep timer. In addition to the built-in AC/DC power supply there is a DC jack on the rear panel for an external 9 Volt DC power supply if so required.

Continue reading…

Thanks for the tip, Ed! Reading this, it’s most encouraging to see that Gospell reached out to radio enthusiasts and used their input for firmware and hardware upgrades prior to production.

This may be the most encouraging portable DRM receiver yet. Indeed, Paul Walker, has been enjoying his Gospell GR-216 tremendously and–using an external antenna–has captured a number of DRM broadcasts from Pennsylvania. He might produce a review of his own to post here soon.

If anyone else has notes about the Gospell GR-216’s performance, please comment! Could this finally be a DRM portable for the DXer?

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ABC scolded for cutting shortwave service

(Source: news.com.au via Trevor R)

The ABC has been slammed by all sides of politics over its “foolish” decision to cut the transmission of shortwave radio to remote Australia and the Pacific Islands.

The Senate debated a private bill on Thursday by crossbench senator Nick Xenophon to force the ABC to restore transmission after it was cut earlier this year.

“It seems a terrible decision that’s been made by the ABC board,” Senator Xenophon told parliament, accusing the public broadcaster of ignoring the bush and Australia’s neighbours.
The ABC insists listeners can still tune in via FM and AM frequencies, the viewer access satellite television (VAST) service and online.

But senators say the ABC fails to understand those alternative methods are not available to everyone in the bush and the information people are missing out on can be life threatening, such as weather warnings.

Senator Xenophon said the ABC had miscalculated how many people relied on the service.
“There are some question marks over the methodology used by the ABC in relation to this.”

Continue reading the full article at news.com.au…

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The Zastone ZT-D9000 dual band mobile includes HF and LW coverage

Many thanks to SWLing Post contributor, Cap Tux, who writes:

The Zastone ZT-D9000 radio has actually been out for a while and is a Dual Band Mobile (Triband with option), nothing fancy there and bears a striking resemblance to the Icom IC-2820H (clone?). Options include GPS, Bluetooth, 220Mhz and LW (The latter is really weird!).

What caught my eye is the 2.3-30 MHz Shortwave coverage, a quick search on YouTube turns up a video showing Shortwave working!

Yes, probably as wide as a barn door with no filtering except the 12kHz default but an extremely useful feature if you did need a dual band mobile in your jeep/car.

Two other noteworthy features are a dedicated RX BNC antenna socket and a built in FM Transmitter so you can listen to it on the FM Radio in your car/jeep, very cool. A bit like a pimped IC-2820H. Also has all the bells and whistles a Dual Bander should have,

This is the OEM site:
http://zastonetech.com/2-7-mobile-transceiver/291931

This site has the spec:
http://radioaficion.com/cms/zastone-d9000/

YouTube video showing Shortwave in use:

Click here to view on YouTube.

Click here for eBay UK.

Click here for eBay US.

Some Specs:

A/B Band RX:
136-174MHz
200-260MHz (OPTION)
400-470MHz
470-520MHz

B Band RX:
153-279kHz (AM) (OPTION)
0.5MHz-1.8MHz (AM)
2.3-30MHz (AM)
64-108MHz (WFM)
113-137MHz (Airband – AM)

TX:
136MHz-174MHz
222-225MHz (Type USA 200-260MHz) (OPTION)
400-520MHz

Channel Steps: 1.5, 6, 6.25, 10, 12.5, 15, 20, 25, 50, 100kHz
Frequency Stability: +-2.5ppm
Repeater Shift: +-600kHz(144MHz), +-5MHz (430MHz)
Emission Type: F1D, F2D, F3E
Antenna Impedance: 50 ohms
Supply Voltage: Nominal: 13.8VDC, Neg Gnd, Operating: 12-24V Neg Gnd
Operating Temp: -40F to +-1400F(-20C to +-60C)
RF power Output: UHF: 40W/25W/5W VHF:50W/25W/5W
Case Size: (WxHxD) 6″ x 2.3″ x 1.3″ (Panel w/o knobs and connectors)
6″x6″x 1.8″ (Rear chassis w/o connectors)
Weight: 3.7 lbs

Transmitter:
RF Power Output: UHF: 40W/25W/5W, VHF: 50W/25W/5W
Modulation Type: Variable Reactance F1 D, F2D, F3E
Maximum Deviation: +- 5KHz
Spurious Emission: at least 60 dB below
Microphone Impedance: 2 k ohms

Receiver:
Sensitivity Radio Band:
B Band:
5uV TYP for 10db SN (153-279 KHz, AM)
5UV TYP for 10 db SN (0.5-1.7 MHz, AM)
2uV TYP for 10db SN (203-30 MHz, AM)
2Uv TYP for 12db SINAD (64-108 MHz, WFM)
0.8 uV TYP for 10 db SN 9113-134 MHz, AM)

A&B Band:
0.2 uV for 12db SINAD (136-174 MHz, FM)
0.2 uV TYP for 12db SINAD (200-260 MHz, FM)
0.2 uV for 12 db SINAD (400-470 MHz, FM)
0.2 uV TYP for 12 db SINAD (470-520 MHz, FM)
Squelch Sensitivity: 0.16 uV (144/430 MHz Band)
Selectivity: NFM, AM 12 KHz/30KHz(-6dB/-60dB)

AF Output:
6W@4 ohm for 10% THD (@13.8V) EXP SP
3W@ 8 ohm for 10% THD (@13.8V) Normal EXP SP/CH
AF Output Impedance: 4-16 ohm
3 Speakers

Included in Purchase:
– Radio
– Microphone
– Power Cables
– Remote Install Kit
– Software CD
– Programming Cable
– All Mounting Hardware
– 1 Year Warranty

Options:
– Bluetooth
– GPS
– Barometric altimeter and thermometer
– 220MHz
– LW Band

Very interesting, Cap! Thank you for sharing.  Honestly, I have a very difficult time keeping up with the radio equipment being produced and sold out of China.

And you’re right: what a surprise to find HF coverage on a dual-band mobile radio and especially longwave coverage! Like you, I wouldn’t anticipate stellar performance. The price is certainly “bargain basement” at $210 US shipped.

SWLing Post readers: Has anyone purchased and tested the ZT-D9000?  Please comment!

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BBC and Marketplace to launch new global business broadcast

(Source: Talking Biz News via Howard Bailen)

Marketplace and BBC World Service announced Tuesday a new daily global business broadcast, “Marketplace Morning Report” from BBC World Service.

The new broadcast launches Tuesday, Sept. 5 on U.S. public radio stations nationwide. The program will be hosted live from London by the BBC’s Anu Anand, who has more than two decades of experience as a global journalist.

“There are large scale shifts underway in the global economy, and our expanded relationship with the BBC will provide millions of public radio listeners in the U.S. with a fresh global perspective to start their day,” said Deborah Clark, senior vice president and general manager, “Marketplace,” in a statement. “We see this collaboration as an important element in realizing our goal to increase the economic intelligence of all Americans by applying global context and tying it together for U.S. audiences.”

Continue reading the full article at Talking Biz News…

Many thanks for the tip, Howard! Marketplace with Kai Ryssdal is one of my favorite radio broadcasts–I rarely miss it. I’m looking forward to the new Marketplace Morning Report collaboration.

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