Qodosen SR-286 vs Sangean PR-D4W on two distant MW signals

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  • Опубликовано: 20 окт 2024

Комментарии • 36

  • @Ali-uj4gd
    @Ali-uj4gd 5 месяцев назад +5

    It’s nice to see stations still on MW in africa.

    • @swlistening
      @swlistening  5 месяцев назад +1

      HI Ali, thanks for your comment! Yes, there are still many MW stations in my region. In Mozambique and Botswana, my direct neighbouring countries, there are quite a large number. In Tanzania and Malawi, further away from me, there are some, but not that many. Angola also still uses MW. Here in South Africa, alas, we only have about five MW stations left in the entire country.

  • @arcticradio
    @arcticradio 5 месяцев назад +3

    I still find it awesome that I heard the RFA 1377khz station in Northern Finland. It was one of the best MW DX moments I had!

    • @swlistening
      @swlistening  5 месяцев назад +1

      Indeed, that was a really great catch! Definitely an amazing DX moment!
      I think it's really amazing that these two portables in my video, with just their internal ferrite antennas, actually do so well on a 3000 km MW signal. I think these are great radios, I can just imagine what they will do outside of the city, away from all the RFI!

    • @arcticradio
      @arcticradio 5 месяцев назад +1

      @@swlistening This is it there’s so much RFI these days and when you have quiet it’s a whole new level of radio listening.

    • @swlistening
      @swlistening  5 месяцев назад

      @@arcticradio Absolutely. I remember from some previous trips to the countryside, the difference is huge. Out in the country, for example, I even caught Radio New Zealand clearly, which I never catch here in Johannesburg.

  • @LionRoars918
    @LionRoars918 5 месяцев назад +3

    Thank you. 😊

  • @Kw1161
    @Kw1161 5 месяцев назад +2

    Thanks Andre both sets are fine sounding. But the little “Q” was easier for me to understand watch she was saying.
    I believe the noise is from your streetlights, as I have the same problem. I occasionally go to one our local state parks or up to the mountains to pickup a signal without the noise.
    By the way my new Raddy RF919 seems to be a fine DX performer, except the manual needs to be re-translated…😊!
    73! Have a great day!

    • @swlistening
      @swlistening  5 месяцев назад

      Thank you! I also think that noise comes from street lights outside. Unfortunately nothing one can do about that, except leave, like you did 🙂 But it seems to me that the Qodosen has a stronger noise reduction ability than the Sangean.
      Good to hear about the Raddy, it does look like a very interesting radio!

  • @craignehring
    @craignehring 5 месяцев назад +2

    Thank you for this video review

    • @swlistening
      @swlistening  5 месяцев назад

      Glad it was helpful, Craig!

  • @ArnieDXer
    @ArnieDXer 5 месяцев назад +1

    Hi Andre, thanks for another interesting comparison 😃 I was quite amused to hear more noise on the Sangean on 1422 Malawi, literally as if some noise source was turned-off right at the moment you switched from the Qodosen to the Sangean. Yet despite this, I'd rate clarity of the signal as... about the same 😳 how strange?
    I'm still playing with that Reunion KiwiSDR, and found a 3rd signal from Mauritius: BBC World Service relay on 1575 AM! Oddly, it's delayed by almost 14 minutes, but still it has to suffice as a replacement for nearly lost SW service from them 🤷‍♀ I'm also really impressed by how many stations there are from Mozambique 😮 like what, 738, 963, 1008, 1026, 1179, 1206, 1224, 1260... that's getting just as rich or even richer than Romanian MW offerings... and it's one of few countries left in Europe where MW is still going strong! Finally, it was only late afternoon when I checked, but I was stunned to see the lower part of the band full of Australian signals! Now that's going to be a DX golddigger 😍
    fr4rx.ddns.net:8073

    • @swlistening
      @swlistening  5 месяцев назад +1

      Hi Arnie, thanks for the information about that Kiwi SDR in Reunion and what you are hearing there. Those Australian signals sound fantastic. I am sure it would be possible to catch Australia on the east coast of South Africa also, in a quiet area, facing the Indian Ocean. A DXing trip for me to plan for the future!
      The noise difference between the Qodosen and the Sangean is really quite extraordinary. It is not only on the Malawi signal, I hear it also on the Radio Free Africa one. I think the noise comes from my housing complex lights, outside my house (because inside absolutely everything was switched off). But the Qodosen seems to have some kind of noise reduction ability that the Sangean does not have. However, as you say, the signal clarity is basically 100% alike on the two radios, they are equal. Just the noise that makes a difference. I think they are both great radios for MW DXing.
      About Mozambique. They have provincial radio stations on MW in each of their 10 provinces, as well as a national station, Antena Nacional, based in Maputo. Each of the provincial stations transmits from the provincial capital city. Interestingly, as far as the public broadcaster (Radio Mocambique) goes, it has only five FM stations in the entire country, four in Maputo and surrounding areas, and one in Beira, the second city. There are many private stations though. One is LM Radio, which is on FM (87.8 MHz) in Maputo and surroundings. An interesting geographic fact, the Mozambican coastline from south to north is 2300 km long, it is quite a stretched out country.
      The MW frequencies and provinces, more or less in geographical order, from south to north, are:
      Maputo (province) 1008 kHz
      Antena Nacional (Maputo) 738 kHz
      Gaza 810 kHz
      Inhambane 1206 kHz
      Manica 1026 kHz
      Sofala 873 kHz
      Tete 963 kHz
      Nampula 765 kHz
      Niassa 1260 kHz
      Zambezia 1179 kHz
      Cabo Delgado 1224 kHz
      I have caught all of these at various times, sometimes all ten on the same night of DXing.

    • @ArnieDXer
      @ArnieDXer 5 месяцев назад +1

      Hi again, thank you for the detailed informatykom about broadcasting in Mozambique 😀 looks like they're left pretty far behind in FMization of the country... which is actually good for MW DX 😅 sometimes I wish European countries were still willing to afford both the existing FM and possible DAB+ networks and one or two MW or LW transmitters, just in case of 'W' if not for anything else, especially now that times arę uncertain.
      However, I have caught Emissora Provincial de Maputo on 1008 kHz on the Réunion KiwiSDR with an ID, interestingly, giving 102.3 FM and a meter wavelength for MW! Like in the (very) old days 😮
      Finally, I was looking for Cabo Delgado on 1224 on my IQ recordings from last Thursday evening. The result, so far at least but I doubt it'll be different in the end, are plenty of carriers close to the exact frequency, but the only audio I heard was from a Greek pirate I've noticed for the 1st time there (and I uploaded their ID, just can't quite decipher it), and from Iran in Arabic on 1224.014. No Mozambique 😢
      I wish my TEF radio were as quiet as your Qodosen or Sangean :/ its display buzzes loudly every 30 kHz or so. Manageable if it turns off though, which is pretty much unneeded if controlled via Wi-Fi as I do 😛 What I noticed though... I've connected a 70m or so length of wire laying on the ground (yes!) to test this concept. I used it so far on the TEF radio, the Airspy HF+ Discovery, and Xiegu G90. And guess what... With display off and no connection to my laptop, the TEF6686 turned out to be more sensitive than even the Airspy... which is already a sensitivity king 😳 in fact, Airspy has been the worst of the three! Compared on 7490 WBCQ and on MW where the Airspy mostly had noise... most likely emanating from the laptop. Still though, I think I'd better raise that wire 'cause its gain is so low 😂 or decouple it better to eliminate the laptop noise 🤔

    • @swlistening
      @swlistening  5 месяцев назад +1

      @@ArnieDXer Hey Arnie, my pleasure about Mozambique. It's basically information that I gathered over the years as I caught the stations. Mozambique is, often, my prime target, just because they still have so many MW stations there. And they are often fun to catch, nice music, often interesting programmes, the little that I can make out sometimes with my basic knowledge of Spanish, which helps a bit with understanding some Portuguese. Very interesting what you say about the meter wavelength being given on 1008! I will listen out for that!
      Do you use the WRTH? I bought the web app just a few days ago, it really has such detailed information about each country in the world, I already learned things about South African radio that I never knew! There is one more MW station here that I did not know of, 846, Umhlobo Wenene, in the Eastern Cape. It is the public broadcaster, the station is also on FM, but seems like they still have this one MW transmitter. Will be a hard catch for me though, the Drakensberg mountains are between me and that signal. But I will try for it. I also used the WRTH to confirm what I already knew. If I look at my region, no MW in Namibia, Zambia, Zimbabwe, DRC, Madagascar, Rwanda or Burundi. Six transmitters in Botswana, six here in SA, 11 in Mozambique, 3 in Tanzania, one in Kenya, 3 in Angola, 3 in Lesotho (although I'm not so sure about that, I have always only caught 639), and 3 in Malawi. The Tanzania and Kenya ones are some that I will keep trying for. But, anyway, long story just to say that I really find the WRTH very useful. In Argentina, for example, there seems to be MW stations at basically every step, from 540 up to 1600. Those should be possible catches for me if I am on our west coast. I never knew they had so many. And Chile also, but those will be near impossible for me to catch, I think. Point is, still a lot going on on MW down here in the southern hemisphere, the WRTH showed me that. And you mentioned the Australian ones previously.
      Very interesting what you said about the wire and the TEF. I am suprised that it is even more sensitive than the Airspy. Which TEF radio do you use? I really think the TEF 6686 chip is a radio revolution in the making, it just seems to have opened up a new world of listening that no other radio chip has done so far. But I do notice from my own experience so far that the TEF chip likes noise-free environments. Today I took my Qodosen outside, away from houses, and tried it on MW. It was just before sunset. I caught Cabo Delgado (Pemba) and Zambezia (Quelimane) from Mozambique, when the sun was still out. That really amazed me. I really do need to take this radio out to a park and try more MW DXing on it with just the whip. The plan is to do that tomorrow.

    • @ArnieDXer
      @ArnieDXer 5 месяцев назад +1

      @@swlistening yes yes, looking forward to your MW DX videos from the park! 😍 As for Argentina, you should check out some KiwiSDRs in or near Buenos Aires; there, the band is really chock-full of stations (although some can be from Montevideo, which is not that far), and there are even cases of nearby local stations splattering onto each other as they are only 10 kHz apart! I guess you may be able to log some of them (my best guess would be 750, 870 or 910 if VOA is off on 909), but the best time for that would be late at night, maybe past your midnight, all the way into sunrise, and maybe 30 minutes after. I'm only worried such reception may not happen today or tomorrow; the Sun has literally gone nuts with 8 M-class (and one actually an X-class) flares in 12 hours! 💥 But better always see for yourself; my best Asian opening last winter was an hour or so past an X-class flare, which happened just at the right time - when Asian signals had just started to make the trip mostly in dark & reach me -- and they were boosted! -- and at the same time, the flare had wiped out most if not all daytime skywave signals from Europe!
      Nice that you mention WRTH. A few months ago, the book had changed the owner - and thus, its supplier of data - and now they take it from FMLIST and MWLIST. I have accounts on both services and routinely use them as my logbooks for FM & MW/LW. And I can access all the same info - including e-mail, snail mail, and streaming links - for each active station on any given frequency. Admittedly, the interface could be better, especially when working Sporadic-E on FM, where I think a map view would be crucial in knowing what I am logging. It is available - but on FMSCAN, which is separate from FMLIST despite using the same data (and requiring an FMLIST account lately), and doesn't enable logging stations. Or maps.fmdx.pl which is more open & more intuitive. But IMHO, having all the functions needed split between 2 or 3 different services makes you need a lot more multitasking than you need - and wastes your time. Well, why am I saying this to you rather than to FMLIST authors? 🤣

    • @swlistening
      @swlistening  5 месяцев назад +1

      @@ArnieDXer Hey Arnie, that park video is up! It was very interesting indeed, I was surprised. The Qodosen performed very well on the whip and a bit of wire for MW listening. Many of the Mozambican signals came through even before sunset, some very clearly. I also compared the external antenna and the internal ferrite, the difference is very big. But I know now that I do need a relatively quiet area when using the whip for MW. I have, of course, tried the whip and my long wire at home on the Qodosen for MW, but it is always too noisy to catch anything weak. It does work on stronger signals though, even at home. Like the local signals and nearby ones like Lesotho and Botswana, they sometimes come through nicely on the whip at home. But the park was just something else. SW was not too spectacular though, because of the Sun going nuts, as you say 🤣
      I am really enjoying the WRTH, despite not being very user friendly at all. It is like a book that you read online, not an interactive app. But really packed with information that seems to be very much up to date. I do use MWLIST also, a very good resource. FM DXing is something that I have yet to explore, let's see what the future holds 🙂

  • @josealeixes2861
    @josealeixes2861 5 месяцев назад +2

    Muito top parabéns

  • @oz_dx
    @oz_dx 5 месяцев назад +2

    PR-D4W is very noisy on 1422 kHz.

    • @swlistening
      @swlistening  5 месяцев назад +2

      I agree, it seems to cope less well with noise than the Qodosen. There is another video also on my channel where I compare the Qodosen and the Sangean on signals from Malawi and Tanzania, and the Sangean is more noisy there also.

  • @F4LDT-Alain
    @F4LDT-Alain 5 месяцев назад +1

    Hello André. I was eager to watch this battle. No clear winner in the first segment IMHO. The Sangean has a much clearer sound and the high pitched white noise is not really annoying. It really doesn't sound like the two radios have the same bandwidth setting. The Qodosen sounds muffled, like using a much narrower b/w.
    Things are different in the second segment. Here we not only have white noise but audible QRM, RF interference. And the Qodosen definitely sorts the signal out better.
    So it seems that the Sangean challenger won't rob the throne from the well-established Qodosen, will it? 😁

    • @swlistening
      @swlistening  5 месяцев назад

      Hey Alain, thanks for your comment! I think I will have a lot of fun with the Sangean and it might still beat the Qodosen sometimes :-) It is a very nice radio, I really like using it, and it seems to perform pretty much the same as the Qodosen in most cases. But it sounds better.
      It's weird that the Qodosen sounds a bit muffled on Radio Free Africa here, I am quite sure the bandwidth was the same. But I am beginning to think its bandwidth settings are actually narrower than what is indicated. So, 4 kHz sounds a bit more like 2.5 kHz... I just uploaded another MW comparison video, bandwidth the same again, and, once again, the Qodosen sounds slightly muffled.
      On the second signal here, as you say, the Qodosen is simply well ahead of the Sangean.

  • @AlexeyDXman
    @AlexeyDXman 5 месяцев назад +1

    Qodosen is winner.

    • @swlistening
      @swlistening  5 месяцев назад +1

      I agree, it's very good on MW!

  • @eyadabusharar2457
    @eyadabusharar2457 5 месяцев назад +3

    2800k
    without antennas its so amazing, as I know the full range of any good radio on AM does not exceed 2500k, yes its the king of Am

    • @eyadabusharar2457
      @eyadabusharar2457 5 месяцев назад +3

      About the noizing did you tray to change your place.

    • @swlistening
      @swlistening  5 месяцев назад +2

      I didn't change places, no, but inside my house all the electricity was off, I switched off the main power switch to the house. I always do that when DXing. I think it comes from the neighbours, or maybe lights outside.

  • @patrickkerns2022
    @patrickkerns2022 4 месяца назад

    i think it would preform well on mw am radio dxing at night not am shortwave but mw am radio sations in the usa thanks

    • @swlistening
      @swlistening  4 месяца назад

      Hi Patrick, thanks for your comment! Both of these do perform very well on MW at night! The Sangean is a bit more noisy, but it is very sensitive.

  • @johndorian3685
    @johndorian3685 4 месяца назад +1

    Try running the Sangean from batteries next time, it might reduce the noise.

    • @swlistening
      @swlistening  4 месяца назад

      Hi John, I run my Sangean on batteries all the time. On stronger MW signals the Sangean sounds great, but it seems to be a bit noisy on weaker signals.

    • @johndorian3685
      @johndorian3685 4 месяца назад +1

      @@swlistening I noticed a wire connected to the right side of your Sangean. Isn’t that the plugged in power cord ?

    • @swlistening
      @swlistening  4 месяца назад

      ​@@johndorian3685Hi John, that's an audio cable from the earphone jack on the Sangean to my Tecsun ICR-110, which serves as my audio recorder. Over the past couple of months I have been recording the sound in all my videos digitally onto a micro SD card via the ICR-110. This provides much better sound in my videos than when I use a mic.

    • @johndorian3685
      @johndorian3685 4 месяца назад +1

      @@swlistening gotcha thanks