Digital DX

rz + · Trimis: 18/04/2012 21:24 Titlul subiectului: DRM (Digital Radio Mondial)

Propun sa punem aici toate informatiile legate de acest interesant sistem digital de transmisie pe distante foarte mari (pe UM ori US)
Pacat ca nu a reusit sa se impuna pe piata... cu mici exceptii (Australia si USA)
Pentru inceput iata cateva link-uri despre DRM:

http://www.drm.org/

http://www.drmradio.co.uk/

http://radiodxinfo.blogspot.com/2009/08/drm-facile-con-luniwave-di-wave-100.html

Si cele mai cunoscute/populare aparate DRM

http://www.deutsches-drm-forum.de/html/drm_empfanger.html

http://www.drm.org/products
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ROMANIA (Brasov), 2.2M (Ku&C), 1.2M (Ku), 95'E-45'V, Deviser S-30 Sat Meter, Amiko X-Finder DVB-S2/T2, LG 4K, TV ATX & Angel.
Onkyo T-4700, Technics G-70, Grundig Satellit 500, Tecsun PL-660, Sangean ATS 909X, Sangean DPR-39 DAB+, FM Yagi 7 & 3 elem.

rz + · Trimis: 30/04/2012 22:27 Titlul subiectului:

Iata si o lista actualizata cu transmisii DRM

http://www.baseportal.com/baseportal/drmdx/main
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ROMANIA (Brasov), 2.2M (Ku&C), 1.2M (Ku), 95'E-45'V, Deviser S-30 Sat Meter, Amiko X-Finder DVB-S2/T2, LG 4K, TV ATX & Angel.
Onkyo T-4700, Technics G-70, Grundig Satellit 500, Tecsun PL-660, Sangean ATS 909X, Sangean DPR-39 DAB+, FM Yagi 7 & 3 elem.

milan ac · Trimis: 26/05/2012 18:23 Titlul subiectului: sfat

ce aparat ami recomandati cu conectare la net.as dori sa achizitionez unul
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FORZZA MILA,FORZZA STEAUA,FORZZA LUPII GALBENI...FUCK THE SYSTEM

rz + · Trimis: 26/05/2012 19:21 Titlul subiectului:

Daca te referi la internet radio receiver sa stii ca
sunt îndeajuns de rare astfel de aparate pe la noi si inca tare scumpe (de la 800 lei in sus cele de firma)... oricum, doar cineva care poseda un astfel de receptor iti poate raspunde
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ROMANIA (Brasov), 2.2M (Ku&C), 1.2M (Ku), 95'E-45'V, Deviser S-30 Sat Meter, Amiko X-Finder DVB-S2/T2, LG 4K, TV ATX & Angel.
Onkyo T-4700, Technics G-70, Grundig Satellit 500, Tecsun PL-660, Sangean ATS 909X, Sangean DPR-39 DAB+, FM Yagi 7 & 3 elem.

dingo31 · Membru Data inscrierii: 29/Oct/2012 Mesaje: 26

Totusi ce se intampla cu DRM? Un proiect nascut mort se pare pentru ca nu vad nici un progres, nici o dorinta de implementare la scara larga. Pacat, ar fi fost elegant sa revenim la unde scurte in varianta digitala, dar statii de emisie rare, zone de acoperire rare, receptoare rare, interes scazut. Se pare ca se intampla cam acelasi fapt cu ce s-a intamplat la proiectul Worldstar !

marluck · Trimis: 26/11/2013 10:42 Titlul subiectului:

- E mai costisitor si nu prea convine nimanui ... FM-ul si streamurile pe net se pare ca sunt de ajuns acum ...
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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

dingo31 · Membru Data inscrierii: 29/Oct/2012 Mesaje: 26

marluck · Trimis: 03/07/2016 13:53 Titlul subiectului:

- Intr-adevar pe mare sunt alte conditii dar vara avem pe de o parte tropo bun cu efectul știut de mare in FM cu receptii bune de la turci mai ales dar si din alte parti desigur . Stanbulul intra si acum desi puterile de la turci au fost in FM diminuate considerabil , unfortunately ..... Cat priveste netul ar fi si aici unele solutii dar cu costuri mai mari .
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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

marluck · Trimis: 15/09/2016 09:46 Titlul subiectului:

Titus II DRM Receiver Unveiled

- During an August meeting of the shortwave group, HFCC, the PantronX Titus II Digital Radio Mondiale receiver was unveiled.

A full software-defined radio system that is built within an Android tablet, the Titus II has a 100 kHz–2 GHz receiver onboard and decodes AM, FM, SSB and DRM natively.

Featuring a touchscreen, the receiver uses a ARM Quad-Core A53 1.2 GHz processor, 1 GB of RAM and 8 GB of onboard flash memory. It has a 7-inch TFT display and supports Android 5, 6 or custom remixes.

The system also features Filecasting, Wi-Fi capability, 5 W stereo audio, an HDMI output and a built-in RF tuner. It can be used as a desktop PC with the addition of a monitor and keyboard.

Details on pricing and release are expected at a later time.

- See more at: http://www.radioworld.com/article/titus-ii-drm-receiver-unveiled/279536#sthash.GkHRNJhP.dpuf

http://titusradio.com
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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

marluck · Trimis: 15/09/2016 22:08 Titlul subiectului:

Gospell Announces New DRM Receiver

https://www.youtube.com/watch?v=CBGJIT81kmQ

http://www.radioworld.com/article/gospell-announces-new-drm-receiver/279594

http://www.gospell.com

http://www.gospell.com/china-gr_216_new_generation_drm_receiver_am_and_fm_stereo_reception-8536660.html
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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

marluck · Trimis: 10/08/2017 14:28 Titlul subiectului:

- India crește reteaua de relee DRM , mai ales in UM !

All India Radio Adds Six Nautel DRM Transmitters

India continues its DRM digital radio rollout with four 100 kW and two 200 kW NX transmitters
August 4, 2017
By Radio World Staff

- All India Radio continues its rollout of Digital Radio Mondiale with the addition of six Nautel NX DRM-enabled transmitters.
Four 100 kW NX100 and two 200 kW NX200 transmitters were shipped to the public broadcaster in July for installation in six cities.
The new transmitters will be installed at AIR facilities in Hyderabad, Jagdalpur, Vishakhapatnam, Bhawanipatna, Jeypore and Sambalpur.
The six new transmitters bring AIR’s absolut up to 33, all of which are configured for DRM30 operation.
- The transmitters will be commissioned by Nautel’s in-country partner Comcon, in association with India’s Prasar Bharati.

http://www.radioworld.com/news-and-business/0002/all-india-radio-adds-six-nautel-drm-transmitters/340154

[url=http://www.99poze.ro/p/88f9f972c6d7dcdc63ce0fc2a54e6a1f.jpg] DRM (Digital Radio Mondial)

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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

bonou2 · Trimis: 16/08/2017 21:18 Titlul subiectului: Radio DMR

radio cu DMR

DRM/DAB Receiver Morphy Richards

Thanks for your interest in amorphe Richards, unfortunately I am out of stock of this old DRM radio.
I think you can find it on the amazon-web-sites from the UK.

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Newstar Multimedia-DRM-Receiver DR212

The DR212 from Newstar was never build as we did not receive sufficient order.

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INDIAN DRM-RADIO AVION DR 1401

se gaseste pe amazon india dar nu se livreaza in europa
din ce am citit/vazut pe net radio-ul este de slaba calitate ca constructie

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The Gospell GR-216 New Generation DRM Receiver , AM And FM Stereo Reception

The DRM receiver cost USD200 plus air freight such as DHL/FedEx USD90, global USD290

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marluck · Trimis: 25/08/2017 20:02 Titlul subiectului:

- In opinia mea AM-ul in Unde Scurte este si va continua sa prevaleze la receptie , caci oricat de bun ar fi mijlocul de emisie digitala DRM , in Europa succesul acestuia este practic nul , lumea nu investeste si nu va investi cred niciodata in echipamente de receptie , mai ales ca are si internet si FM la indemana , si destule variante de informare ieftine . Plus de asta din testele din trecut , cand nu e propagare buna , de bine de rau in AM tot se mai aude ceva , in timp ce in digital nu se pune problema de receptie ci doar de pauze de minute bune sau chiar zeci de minute uneori .... Un radio analogic bunicel nici nu costa prea mult in AM cu Scurtele bune asa ca aici interesul este unul minor in alte tehnologii . Insa sectorul are si promotorii sai si desi la noi nu are nici prezent si nici viitor , in alte regiuni dens populate sunt si tari care au reusit sa implementeze o retea digitala suficient de densa . Ce te faci insa cu zgomotul urban dar mai ales cu interferentele si bruiajele (nu putine) din Unde Scurte pe modul digital ? Deci , audienta zero in prezent pentru emisia DRM in Europa ; doar un mijloc de testare pentru un numar infim de persoane care detin receptoare DRM .
- Ca exemplificare , receptiile dificile uneori dar posibile in 31 m de la teribil de mare departare din Japonia , Guam , Pacific in orele amiezii si inceputului de seara cu semnale extraordinar de reduse , sunt practic imposibile in modul digital , deci nu se pune problema de redundanta si Dx ! Iar coreenii si chinejii si persanii si etiopienii dar si altii au tot soiul de bruiaje motivate politic , asa ca daca AM-ul totusi mai 'merge' , digitalul este exclus din start in atari conditii ! 15245 Khz la ora 16.30 este relevant , plus alte exemple .....
- Se practica bruiajul chiar si in FM in Orientul Mijlociu , in Levant !

Commercial Stations’ Digital Dilemma
Why are they so attached to FM?

August 24, 2017
Written by: Ruxandra Obreja
The author is chairman of Digital Radio Mondiale.

LONDON — For many commercial stations, the dollar sign still shines brightly on the radio screen. Radio advertising revenue is continuing to grow in the United States, United Kingdom and many parts of the world.
In the U.S., radio is the third most powerful medium reaching over half the population daily. The advertising revenue for the country’s more than 10,000 AM and FM commercial stations was a staggering $14.71 billion in 2015. A good chunk, but still under a billion was delivered by online advertising linked to the radio output.
Even in India, where there are under 300 commercial FM stations, with just another 400 run by the public broadcaster, the projection is a 10 percent increase in advertising revenue this year compared with 2016. Radio, our good, local, intimate friend, at home or in the car is ubiquitous.
Advertisers like the medium’s simplicity, the fact that they can target their messages locally. Its well-crafted words and jingles establish a clear personal connection that works. Radio does not depend on internet or even electricity. In the 1970s FM was a revelation and, in many countries (including the U.S.), together with medium wave, FM was and is doing very well, still.

However, FM is spectrum and energy hungry. There is this idea that, once you have invested in the infrastructure, you are broadcasting a decent program and you have lined up some advertisers with deep pockets, you are “made.” After all, you are selling air or airtime, a very nice and cheap commodity and the business model is simple and well tested.In parallel, in the last 10 to 15 years, the inventors and promoters of digital radio have tried to introduce a better, digital version of radio with energy and spectrum savings and more services and advantages. In Europe, 25 years ago, public broadcasters carried the baton. DAB/DAB+ was promoted and introduced by big players such as the BBC and, more recently, in Norway by NRK.
For them digital is very effective, especially for national coverage. In the U.S., the regulator (i.e. FCC) mandated a U.S.-invented and owned digital solution that has been embraced with varying degrees of enthusiasm by the FM and AM stations. Digital Radio Mondiale (DRM), the latest digital radio standard, was first devised as a clear-sound, multi-service replacement for AM.

DRM for medium wave and shortwave is being rolled out in India, where its signal already reaches 600 million people. Six years ago, a second DRM mode that works for all VHF bands was introduced. It has been tested thoroughly on all continents (currently in South Africa). Pakistan is introducing it, but the driver is again the public broadcaster.
The commercial radio sector, however, has been less enthusiastic about being involved in the digital journey. Why is this? Because FM works for them. In some parts of the world, like Africa and India, FM is still the new kid on the block.

Not all the features of digital radio are known or appreciated. Digital radio requires knowledge, a new business model, investment, effort, passion and new affordable receivers. Commercial players, focused on “the here and now,” know that their main requirement is to deliver increasing revenue and maintain their advertising share in a crowded market with few spaces for newcomers.
The 100-KHz bandwidth delivers two to three audio channels and one data channel in DRM for local coverage on VHF, instead of the current single FM program. When compared to FM, this results in less spectrum usage, a lower electricity bill, the same or better coverage, more channels for more content and advertising slots, as well as capacity, to sublet to newcomers and increase revenue.

Commercial operators are cautious and watching all experiments very carefully. They will not invest in new technologies unless the benefits are clear. Often, they expect the government, or other broadcasters, to offer incentives in the form of money and licensing advantages, doubled by a clean digital switchover decisions.
In this equation only the listeners are the unknown and unpredictable element. They do not care if a big multiplex is expensive or that radio can save spectrum. They simply want their audio wherever they are and whenever they are not using other platforms.

And while radio advertising revenue might be holding up, listening time on analog is gradually decreasing. Between 2013 and 2107 radio listening in the U.K. has dropped approximately 10 percent. Research shows that a successful commercial station that stands still for up to five years is doomed.
Change might mean new formats, new presenters, new streaming and online “bells and whistles” but also new technology and investment in digital broadcasting. Digital is not the enemy but an acquaintance ready to turn into a friend and ally.

- Fortunately, some commercial broadcasters have applied this strategy. The latest official figures in the U.K. show that — thanks to digital — for the first time in nearly a century of radio broadcasting, commercial radio has overtaken the BBC. As we say in DRM, digital delivers!

http://www.radioworld.com/columns-and-views/0004/commercial-stations-digital-dilemma/340277

The international broadcaster carried out trial digital radio transmissions on July 6
July 17, 2017

- Taipei-based Radio Taiwan International carried out Digital Radio Mondiale trial transmissions on July 6 from its Tamsui transmitter, located to the north of the capital.
The broadcasts took place in DRM from 5:45 to 5:55 UTC on 2030 kHz and from 6:15 to 6:25 UTC on 9680 kHz.
- According to reports, RTI is also planning several direct digital broadcasts of its German-language program in September and October from Tamsui.

http://www.radioworld.com/digital-radio/0014/taiwan-rti-tests-drm/340026

- Ce te faci insa cu bruiajele de pe main-land China ? :lol:

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PFA 2,2 m Ku / C : 105 E - 15 W ; ATX-91 UHF horizontal G = 18db + Amp.36db Canak & Rotor 360° ; Fortis-Raptor HS-8200 DVB-S2/S DVB-T2/T DVB-C Internet Tv + DLNA , Router TP-LINK TL-WR841ND v.7 300 Mbps , HDD USB 1TB , Sony Ericsson T250i + T280i ,Rec. Carrefour PCR 334,Blpkt Santiago CR87,Grundig Yachtboy 400,Sony SRF-59 MW wonder walkman - Kchibo KK 979 https://www.youtube.com/watch?v=PFx3a7KfN0c- Bucuresti-Stavropolie Tatarka Tv Black Sea Dx Tropo UHF 2015 1253 km

bonou2 · Trimis: 22/03/2019 17:30 Titlul subiectului: The DRM Handbook Revision 4

The DRM Handbook Revision 4

https://www.drm.org/wp-content/uploads/2019/02/DRM-Handbook.pdf