HDR 2000T Poor Signal Strength

Forum Forums Freeview HD HDR 1800T, 2000T HDR 2000T Poor Signal Strength

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  • #15254
    Anonymous
    Inactive

    Been using HDR-2000T for a few days

    Really want it to work, but unfortunately the signs are not great.

    My latest problem is signal strength.

    I have an older 9200T and compared its signal strength with that of the HDR-2000T

    My transmitter is Winter Hill.

    The 9200T reported signal strength of 60% and Quality of 100% for all channels

    However the HDR-2000T reported quality 100% signal strengths of :

    1BBC1 28%

    2BBC2 28%

    3IVT1 28%

    5C5 28%

    11ITV3 36%

    25Dave Ja Vu 30%

    101 BBC1 HD 38%

    (other channels signal strength ranged 20% to 30%)

    I used the same aerial cable for both tests. I have a pretty good aerial, and have not had signal problems for many years.

    Why is the signal strength much poorer with the new HDR-2000T ??

    I did noticed that some of my scheduled HD recording failed last night (recording failed : lack of signal). None of my SD recordings failed.

    If this box can’t record HD channels, then this is a serious problem.

    #49252
    Anonymous
    Inactive

    Have just spoken to Humax Technical support.

    The technical support chap said my signal strength problems were to do with my aerial … they said there are no problems with the HDR-2000T, goodbye.

    #49253
    Barry
    Moderator

    Compared 2000T figures with a 9300 and 9150 on same aerial and they are very similar.

    When comparing did you note the mux frequency?

    I would re check the tuning of the HDR 2000T.

    #49254
    grahamlthompson
    Participant

    Check for channels at 800 and up, the OP may be looking at the wrong transmitter. Ironically picked up during a autotune because the new box has more sensitive tuners. :-)

    #49255
    Anonymous
    Inactive

    I have checked the mux frequencies. Both PVR9200T and HDR-2000T are tuned to identical muxes 49 50 58 59 (HDR mux 54) … Winter Hill

    comparison of signal strengths (same aerial cable)

    mux PVR9200T signal HDR-2000T signal

    49 60% 37%

    50 60% 30%

    58 60% 36%

    59 60% 29%

    54 n/a 38%

    The only difference between the tests is the humax box its self

    #49256
    Barry
    Moderator

    Is the aerial plugged straight into the 2000T or looped thru’ something else?

    #49257
    grahamlthompson
    Participant

    What if anything do you get on 55 and 31(COM 7 – T2). Is the OP testing one box after the other, or are the results for the older box historic numbers ? What happens if you connect the two boxes in series 9200 first with loop out to 2000T and vice versa.

    Are there any amplifiers in the aerial circuitry ?

    If a passive splitter is available try fitting that before the HDR2000T (That will reduce the signal level by around 3.5dB and eliminate the signal being too strong).

    #49258
    Anonymous
    Inactive

    My aerial firstly goes in to a 4-outlet ‘amplifier’. (it also feeds a TV in the back room)

    Not had any signal strength issues for many many years.

    The co-ax cable from the aerial might is 15 years old and might not be the best but have never had any signal problems with x2 PVR-9200Ts (they indicate strong signal).

    Both TVs Sharp Aquos and Sony Bravia are both connected to same aerial … both have strong signals.

    Only the HDR-2000T is showing low(ish) signal strength. It would not matter if it records channels, but it failed on 2 HD scheduled recording early hours of this morning (recording failed : lack of signal).

    By the way … the pictures are watchable on all channels … again its only failed HD recordings that concern me.

    #49259
    grahamlthompson
    Participant

    Bypass the amplifier, now check the HDR2000T. The more sensitive the tuner the easier it is to overload the front end. This can result in the indicated signal strength being lower than it really is because of the waveform distortion created by clipping the signal. Remember the transmitter power went up by large amount at dso. Out of interest check the COM 7 mux (31) which is transmitted at a lower power.

    #49260
    Anonymous
    Inactive

    I have just done factory default and manual rescan

    Mux 55 signal strength 30%

    Mux 31 no signal detected

    My test were conducted today, one box after another.

    I have connected the two boxes in series (v.good idea) This results in a slight strength degradation in reported by the hdr-2000T (all channels watchable)

    All tests so far go via aerial amplifier

    #49261
    Anonymous
    Inactive

    I have now by passed aerial amplifier

    signal strength comparison

    mux 9200T hdr2000T

    49 52% 27%

    50 50% 25%

    54 n/a 28%

    55 52% 26%

    58 52% 26%

    59 52% 25%

    31 n/a 0%

    Like other tests carried out. Signal strength reported by HDR-2000T is approx half that of PVR9200T

    #49262
    Anonymous
    Inactive

    grahamlthompson – 2 hours ago  » 

    Ironically picked up during a autotune because the new box has more sensitive tuners. :-)

    What gave you the impression that HDR-200T had more sensitive tuners? Certainly at the lower end of the scale it has less ‘sensitive’ tuners. What is does have is auto-tuning that is misleading. The HDR-2000T auto-tuning is not helpful like the latest HDR-FOX T2 software. In fact the HDR-2000T auto-tuning is misleading as it asks which region you want and then goes ahead and does the same thing regardless of which region you select. This can result in weaker channels than expected. Until this gets fixed the HDR-2000T will need to be manually tuned to be sure of being tuned correctly.

    I did buy a HDR-2000T but took it back for another reason (4:3 aspect selection having no effect and no I am NOT the person who ranked the HDR-2000T on amazon as 1 star due to that fault). When I bought the HDR-2000T I had been expecting its ability to pick up poor signals to be inferior to a pre-2013 HDR-FOX T2 or a 9200T. The reason I was expecting the tuners to be less sensitive was because the latest versions of the HDR-FOX T2 appear to have been made with the same tuners as the HDR-2000T and there have been reports that the tuners on these latest HDR-FOX T2s were not as sensitive. What I did not know for sure was if these reports were being based on just the inbuilt metre readings or by actual comparison of the TV picture using border-line signals.

    After I bought a HDR-2000T but before I realised that there was an issue with the 4:3 aspect selection I ran some experiments to see how the strength of the HDR-2000T compared.

    The first was to look at the signal strength metre. Although the HDR-2000T was showing a lower strength than the HDR-FOX T2 that does not necessarily prove anything at all. Different models even within the same range have been known to report a difference in strength. I.e. there is not a standard calibration and therefore one model’s 49% may be the same as another model’s 60%.

    Secondly I set up my aerial into the HDR-FOX T2 so that it could just pick up one of the SD mux’s as watchable if you don’t mind an occasional pixilation. The aerial was then moved over from the HDR-FOX T2 RF input to the HDR-2000T’s. The HDR-2000T was unwatchable to the extent that you couldn’t even tell what sort of programme it was. I then moved the aerial back to the HDR-FOX T2 to check that the reception hadn’t just changed. The reception hadn’t changed as the HDR-FOX T2 ws still watchable. The next thing I did was to check that the HDR-2000T was receiving from the same mux as the HDR-FOX T2. Phew – it was.

    I then switched to my more usual aerial and transmitter and daisy chained the aerial signal. With this set-up HD can sometimes get interference on my HDR-FOX T2 . The HDT-FOX T2 was picking up all channels OK, but although the non-HD channels on the HDR-2000T appeared fine the HD channels did not even make a squeak. I reversed the aerial daisy chaining and the situation remained unchanged with the the HDR-2000T unusable on HD.

    There was not anything wrong with the tuners of the HDR-2000T as I’d expect a similar digital cliff edge if I were to use a vestel. It is just that the HDR-2000T are not so ideal as the 9000T series or original HD/HDR-FOX T2 in reception border line areas or where the aerial system is lacking.

    #49263
    grahamlthompson
    Participant

    I had to to fit an attenuator to my HDR FOX T2 to get reliable HD channel reception. The tuners in the newer boxes are likely to be of better quality simply down to progress. Like most things electronic scalers, encoders, encoding codecs are better than they used to be. The scaler in my £100.00 Blu-ray player is a lot better than my Denon 1920 DVD player. When new the Faroujda scaler in the Denon was state of the art. Out of interest dug out my old 9200 from the loft and checked the signal. Much the same results as the HDR FOX T2 (I don’t have a HDR-2000T but would imagine it’s going to be similar.

    #49264
    grahamlthompson
    Participant

    Samnatjoshdan – 55 minutes ago  » 

    I have now by passed aerial amplifier

    signal strength comparison

    mux 9200T hdr2000T

    49 52% 27%

    50 50% 25%

    54 n/a 28%

    55 52% 26%

    58 52% 26%

    59 52% 25%

    31 n/a 0%

    Like other tests carried out. Signal strength reported by HDR-2000T is approx half that of PVR9200T

    Did you still get 100% quality ?

    #49265
    Barry
    Moderator

    According to Humax Towers the HDR 2000T tuning is the same as the latest release for the HDR T2 which appears to be correct from my tests.

    I can pick up 3 transmitters, and both the HDR T2 and HDR 2000T correctly tune in the strongest signals from one transmitter – I used to get a mixture of all 3 previously, and therefore had to manually tune.

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