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Sangean HDT-20 HD Tuner

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  • Sangean HDT-20 HD Tuner

    The Sangean HDT-20 HD tuner is due out July 31, 2016. Universal Radio is one of their authorized retailers and has an overview page here...

    http://www.universal-radio.com/catal...alty/3520.html

    List price is $279.99, Universal Radio customer price is $199.99. It looks like you can order NOW and be on a waiting list.

    I *think* the WTFDA should have a Technical Editor and he/she could persuade Sangean to loan them a unit for an FM DX technical review, right here on the WTFDA Forums. Any volunteers up for it? Remember, you have to be up for long hours of continuous dx and perhaps little sleep at night, dealing with any type of dx thrown at you or lack there of. There I go again, dreaming.
    Jim Thomas
    Springfield, MO EM37

    "Let's just plop them in front of the TV. I was raised in front of the TV and I turned out TV." - Homer Simpson


    Fall & Winter 2019 dx equipment
    Antennas - Antennacraft MXU59 UHF antenna & home-brew version of Antennacraft VHF Y-10-7-13 antenna @ 25'. Both antennas fed through a Channel Master 7777 30dB pre-amp.
    Tuners - Zenith DTT901 converter box; AirSpy HF+ sdr; Silicon Dust HD Homerun Dual ATSC tuner, using Rabbitears autologger support.

  • #2
    Universal's site lists "AM-HD Stereo"....yeah right.

    If I had money to burn, I might spring for it; but sorry!

    Also it mentions HD2 and 3....no 4?

    cd

    Comment


    • #3
      I saw a picture, and it looks A LOT like the HDT-1X.

      Anybody know whether it's "supposed to" be as good as the HDT-1X was? I have an HDT-1X right now, but I want to replace it...perhaps I have some kind of lightning that got into it or something, but the RDS only works if the DX station is coming in extremely strongly, and even in the midst of the big July 12 skip opening, I got RDS displays from only FIVE TO SEVEN stations from 88.1 to 107.9, and the skip was TOP OF DIAL at the time. Ordinarily I would expect 35 to 90 decodes during the same band scan. (Sometimes a frequency will give two or three decodes in a few seconds, if it's working properly.)

      I'm definitely looking for a HDT-1X, or something that's "as good" at quickly giving RDS decodes.

      Having, in effect, *NO RDS* during this huge skip opening was crippling. I know and remember how great it works "when it's working" and it definitely ISN'T right now, at least not very well.

      Is there anything "between" the HDT-1X and the upcoming HDT-20, or is this the first tuner of its type in a few years?
      "I distrust those people who know so well what God wants them to do, because I notice it always coincides with their own desires" - Susan B. Anthony

      IF VEGETARIANS EAT vegetables, then what do humanitarians eat?

      Comment


      • #4
        Originally posted by cd637299 View Post
        Universal's site lists "AM-HD Stereo"....yeah right.

        If I had money to burn, I might spring for it; but sorry!

        Also it mentions HD2 and 3....no 4?



        cd
        IIRC all HD radios have HD-4 my portable doesn't say it had -4 though it does. image.jpg

        Comment


        • #5
          I keep waiting for reviews on this unit. Hoping someone will release something to rival the Sony XDR-F1HD in terms of DX performance--possibly with faster RDS decodes.

          Comment


          • #6
            Hopefully there will be reviews soon; it would be great to know. Unfortunately even the most optimistic timetable doesn't allow me to have this new receiver in time for this Skip season, and that's where I am so crippled by the very poor decodes I get on my current unit. It has probably cost me 100 or more "new" stations; and even when something decodes on this defective HDT-1X, the decodes are often bogus or just plain wrong.

            For example, one of only two decodes I saw from tonight's skip opening was WIP-94.1, which decoded as WBQ...then WBRU...then finally WIP.

            Meanwhile, I'm still waiting to hear if there's anything good that exists right now...and it has to be something which can accept an "intense" outdoor antenna without collapsing into complete overload, etc.
            Last edited by Mike-CT; 08-05-2016, 09:37 PM.
            "I distrust those people who know so well what God wants them to do, because I notice it always coincides with their own desires" - Susan B. Anthony

            IF VEGETARIANS EAT vegetables, then what do humanitarians eat?

            Comment


            • #7
              image.jpg if you can find one the NS-HD01A is DEFINITELY the one to get!

              Comment


              • #8
                I haven't heard much about the NS-HD01A from a DXing standpoint. Can you expand on your endorsement a bit? How does the unit perform on analog signals? How well can it decode weak RDS signals? Is there provision for using an external antenna? Any information you can provide would be great.

                73,

                Les N1LF

                Comment


                • #9
                  I'm also skeptical of something so small - not necessarily manufactured to the EXTREMES of:
                  1. sensitivity
                  2. selectivity
                  3. protection from overload

                  I can almost imagine the thing "blowing up" when I'm pointed in any southerly direction. I have two strong locals and a Class A all at 3 to 4 miles from me, roughly south of me.

                  Within reason, MONEY IS NO OBJECT FOR ME. I'm not going to flinch if I have to shell out $430 for a great tuner or something - I don't want something that will dissolve into Signal Puree when I point at my locals. I mean, no I don't have locals like Pat Dyer or some other people have, but certainly enough here to overload a moderate tuner badly.

                  I've actually found a HDT-1X for sale right now, but I haven't gotten an answer yet whether the RDS decoding is robust. (The problem is that the RDS decoding on mine is about 90% broken - meaning it WILL decode sometimes, but almost never does it decode anything on skip except "local" signals.) I also don't know if the HDT-1X RDS decoder might have a design flaw where it often gets ineffective, or whether I just simply got unlucky.

                  I haven't counted up how many new stations I got on Es this year on FM, but I think it's around 20 or 25. In prior years (like 2012) when the RDS *WAS* working fine, about half of the new stations I logged were via RDS, and no reason that shouldn't still be true. This year I believe I logged *ONE* new station via RDS ID. That's very telling.

                  I want to get ready with this by next Es season, because I KNOW that (for example) if it had been "badly working" as it is now, I would have *NEVER* logged XHCSV-93.1 Coatzacoalcos VE, because it was just weak signals that day (in 2011?) and I got their "WHOI" display because it WAS working well. At 1560 miles it's my longest single hop, or my shortest double hop, on FM.

                  Anybody else with this tuner, is it your experience that the RDS decoder has stayed "robust" for YEARS and not deteriorated like mine has?

                  I also wish somebody had a HDT-20 so there would be some comparison, because I only have a couple days to decide whether I want the HDT-1X or not. I'd hate to buy it, only to find out that the HDT-20 is indeed much more wonderful, but the current situation is untenable. (It would be an incredible plus, too, if the HDT-20 has some kind of signal meter on it!)
                  "I distrust those people who know so well what God wants them to do, because I notice it always coincides with their own desires" - Susan B. Anthony

                  IF VEGETARIANS EAT vegetables, then what do humanitarians eat?

                  Comment


                  • #10
                    Also, does anybody know whether the new HDT-20 is supposed to STORE the "most recent" RDS decode on a given frequency? It would be great to be able to sit on a reasonably clear frequency overnight, and actually see that something like Tyler TX showed up on 93.1 overnight. With theHDT-1X, unless I'm actually looking at the display within a few seconds of a meteor burst, the station and the information are BOTH lost forever.

                    Does anybody know ANYTHING about this new receiver, at all? I need to decide...quickly...whether to "hop on" the HDT-1X that is currently available.

                    I'd hate to miss out on that, only to wait to find out that HDT-20 tuner is actually inferior to the HDT-1X.
                    "I distrust those people who know so well what God wants them to do, because I notice it always coincides with their own desires" - Susan B. Anthony

                    IF VEGETARIANS EAT vegetables, then what do humanitarians eat?

                    Comment


                    • #11
                      On July 19th, Sangean officially released their User Manual for the HDT 20. It can be found here as a PDF document...
                      http://www.sangean.com/support/downl...T-20_GB_V1.pdf

                      If you want to refer to the manual multiple times, I would suggest downloading it and saving it to your computer in a location where you can easily locate it. By default, it will open in Adobe Acrobat Reader (PDF) or similar Acrobat product. Due to copyright laws, it is not wise to extract and post any information directly from their user manual on this forum. I am posting a couple pics that they are allowing retailers and reviewers to use for publicity.

                      If you go to page 3 in the user manual, you will see a drawing of the rear panel, which shows an FM external antenna connection, but it isn't represented as a 75 ohm coaxial connection. The manual says they supply a FM dipole antenna, but I haven't been able to find a picture of that antenna to determine antenna connection. I haven't seen an actual photograph of the rear panel in any of their marketing materials.

                      I can't find any REAL specs on this receiver and don't know if they will be available at all. The SPECS they put in the user manual is rather generic stuff. Not sure what Sangean is *hiding* in a receiver for $200+, other than they think an HD radio should command this type of price. I sent an email to the Universal Radio marketing department to see if I could test drive a model for two weeks. Not holding my breathe.

                      ***I just read this evening on RadioInsight the radio will begin shipping to retailers next Monday, August 8th.
                      Attached Files
                      Last edited by Jim Thomas; 08-05-2016, 11:08 PM. Reason: Extra info
                      Jim Thomas
                      Springfield, MO EM37

                      "Let's just plop them in front of the TV. I was raised in front of the TV and I turned out TV." - Homer Simpson


                      Fall & Winter 2019 dx equipment
                      Antennas - Antennacraft MXU59 UHF antenna & home-brew version of Antennacraft VHF Y-10-7-13 antenna @ 25'. Both antennas fed through a Channel Master 7777 30dB pre-amp.
                      Tuners - Zenith DTT901 converter box; AirSpy HF+ sdr; Silicon Dust HD Homerun Dual ATSC tuner, using Rabbitears autologger support.

                      Comment


                      • #12
                        THANK YOU for your response, Jim! I guess I have NO CHOICE but to go for the existing HDT-1X that won't be for sale after the weekend. I just have to assume that, unlike mine, the RDS is working fine, reliably, and quickly. I have to assume my issue isn't a common issue with the design and many HDT-1X's have NOT lost most of the RDS decoding ability, and that I just happened to be unlucky with it.

                        On the big July 15 opening, I think I may have had a total of 6 to 10 RDS decodes, and two new stations logged via the RDS (10 new stations in total), and I probably actually ID'ed about 40 stations. I remember when the RDS was working properly, I would routinely get as least 50, and sometimes more than 100, RDS ID's during a good opening. Instead of 6 to 10, I most surely should have had more than 100 RDS ID's from the opening, though the low total was probably somewhat determined by the certain knowledge that my RDS results were going to be terrible. The Philadelphia-NYC-Connecticut corridor is extremely heavily populated with RDS stations.

                        There are a LOT or RDS ID'ers in the educational band, and I've generally (comparatively) almost ignored that part of the band, so there is so much that I need, and RDS could really help me there. As far as Es stations logged, 88-92 is substantially my "worst one-fifth" of the dial. I guess now it's an issue for 2017. Now, even if there's a big skip opening, I'll probably miss it by not paying as much attention.
                        "I distrust those people who know so well what God wants them to do, because I notice it always coincides with their own desires" - Susan B. Anthony

                        IF VEGETARIANS EAT vegetables, then what do humanitarians eat?

                        Comment


                        • #13
                          There are some grainy images of the rear side on Sangean's website, here and here. Its possible that its a F connector where the threads are shaved off 2 sides giving it a more oval shape, like the one side of this F connector. I believe the XDR-F1HD has an coax connector like this. Regardless it is listed as a 75ohm port so it should be compatibile with coax cable but may require some odd adapter if its not a F connector port. But it would seem odd to make a product that targets the North American market that uses a coax connector other than the F connector.
                          DX Radios:
                          Sony XDR-F1HD
                          Sony XDR-S10HDiP
                          Tecsun PL-390

                          Comment


                          • #14
                            I watched the full 360 rotation of the radio a couple times Spunker88. It certainly looks like the threaded F connector with the two sides flat. Yes, the Sony has the same thing, with the top and bottom of the 75 ohm connection being flat. It is odd the drawing in the user manual shows it in some odd shape (almost a tear drop shape).
                            Jim Thomas
                            Springfield, MO EM37

                            "Let's just plop them in front of the TV. I was raised in front of the TV and I turned out TV." - Homer Simpson


                            Fall & Winter 2019 dx equipment
                            Antennas - Antennacraft MXU59 UHF antenna & home-brew version of Antennacraft VHF Y-10-7-13 antenna @ 25'. Both antennas fed through a Channel Master 7777 30dB pre-amp.
                            Tuners - Zenith DTT901 converter box; AirSpy HF+ sdr; Silicon Dust HD Homerun Dual ATSC tuner, using Rabbitears autologger support.

                            Comment


                            • #15
                              Originally posted by Jim Thomas View Post
                              On July 19th, Sangean officially released their User Manual for the HDT 20. It can be found here as a PDF document...
                              http://www.sangean.com/support/downl...T-20_GB_V1.pdf

                              I can't find any REAL specs on this receiver and don't know if they will be available at all. The SPECS they put in the user manual is rather generic stuff. Not sure what Sangean is *hiding* in a receiver for $200+, other than they think an HD radio should command this type of price.
                              If you've ever took the covers of an HDT-1 or 1A you'll find that 50% of what is inside is air. There's one main pcb, a display board and a power supply with transformer. The rest is empty.

                              I'm going to guess that the HDT20 is no different. I'll also go out on a limb and predict that the selectivity/sensitivity specs are no better than the HDT1 and that it's not a XDR-F1HD.
                              Mike B.
                              Enfield, CT
                              -72° 30' W/41° 59' N
                              FN31RX

                              Online since 1999 and still going at
                              mikesdx.com

                              Comment

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