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edman5700

USB DVB-T tuner dongle issue

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Hi,

 

I just purchased and received my new USB DVB-T Dongle for my Windows 8 machine.

 

http://www.ebay.com.au/itm/130938012332?ss...984.m1439.l2649

 

I've installed all the drivers and Blazevideo DTV software and operates fine.

 

For some reason using the provided antenna (and tried connecting to external and reinstalled on Windows 7 laptop),

I can only get TVS in Sydney and nothing else.

 

The tuner is set at Realtek RTL2832U mode for DVB-T reception

under Australia region

 

http://www.realtek.com.tw/products/product...&ProdID=257

 

I also have DAB and ISDB options but I know they are not for Australia.

 

There is an advance setting box where I can update

Constellation

Code Rate

Transmission Mode

Guard Interval

Off centre freqency

 

Do I need to change anything to get all the digital channels ?

 

Is there something else I'm missing ?

 

I would think if an external HD antenna is connected all channels would be tuned it.

All channels are available on my main digital TV

 

Thanks

ED

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Can you set the "region" thing to other or world wide? I have found a couple of tuner software programmes that use the wrong frequency range or some crap so setting AU stuffs things up.

Are you using the same antenna as the TV? What's your signal strength on the TV? Iinfo should be somewhere in the tv menu.

 

Tried a different fly lead from wall socket to dongle?

Tried windows media centre in case it is a dumb software issue?

 

Otherwise it may just be a crap tuner that does not work very well.

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Can you set the "region" thing to other or world wide? I have found a couple of tuner software programmes that use the wrong frequency range or some crap so setting AU stuffs things up.

Are you using the same antenna as the TV? What's your signal strength on the TV? Iinfo should be somewhere in the tv menu.

 

Tried a different fly lead from wall socket to dongle?

Tried windows media centre in case it is a dumb software issue?

 

Otherwise it may just be a crap tuner that does not work very well.

I've tried "universal" scanning and still get TVS

Now only works if antenna is connected externally

Current signal on the main tv is 77%

 

If I plug back the supplied version - I get nothing at all.

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y

Current signal on the main tv is 77%

 

If I plug back the supplied version - I get nothing at all.

Small internal antennas are only good if you have perfect reception. That is they are totally useless the vast majority of the time.

At 77% (whatever that means in real terms) your reception is a bit sub par, probably need a better external antenna and/or new coax from antenna to tv.

As far as the dongle goes then it probably just a useless tuner.

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Generally, the rtl2832u's are not too bad, the chip itself is pretty amazing and you can do some cool stuff with it via Software Defined Radio, see: http://sdr.osmocom.org/trac/wiki/rtl-sdr

 

But, as they're fairly cheap, there are sometimes problems. The software mine came with was pretty crap, but it did manage to tune all available channels, with an external discone Antenna.

 

The usual hardware problem is that the isolation diode is missing from between the Antenna connector and the tuner chip, which makes it possible for even a slight charge on your antenna to fry the tuner.

 

We do have DAB+ broadcasts in Australia only in metro areas basically, see http://www.digitalradioplus.com.au/index.cfm?page_id=1003

so, try seeing if you can get FM or DAB with the software. Which the dongle does in Software mode by the way, sending I/Q baseband samples, similar to rtl-sdr above, DVB-T it does in hardware, sending the MPEG transport stream out the USB.

 

Hope it gets working for you!

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Can't really offer much help. But for me personally, the internal antennas have never worked for me.

External is the way to go!

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