scanner radio fm sdr dab dvb scaner usb 24Mhz -1700Mhz detector frecventa
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Produs:Nou, Fără garanție
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Numar articol:193399698
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Disponibilitate:Indisponibil
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Preț:72,00 Lei
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Anuntul a expirat la:16.12.2019, 08:21
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Specificatii
USB 2.0 TV Stick Tuner Receiver DVB-T+DAB+ FM+Antenn for PC Laptop
Black
100% brand new and high quality.
Sticks with this combination (RTL2832 + R820T) are relatively new on
the market. The main difference to all the other supported tuners so
far is that it uses a Low-IF (3.57 MHz) architecture instead of
Zero-IF. That means the tuner is only connected to the In-Phase ADC
input, and the internal down converter of the RTL2832 is generating the
complex samples. This has the benefit of having no DC offset spike in
the middle of the spectrum.
So far the tuner driver comes straight from the kernel driver that
Realtek supplies, and setting gain manually is not supported yet,
although functions for that seem to exist.
There is still is a lot that needs to be done, the best thing most
likely would be to completely rewrite the driver, or at least clean it
up dramatically. Initializing the tuner takes way too long at the
moment, since the driver produces a lot of I2C traffic, most of it
being redundant as it seems.
The driver originally had a frequency limitation of 40 MHz to 900 MHz,
but tests showed that the PLL of my stick can achieve lock up to 1766
MHz, and indeed both ADS-B at 1090 MHz and L-Band DAB at 1463 MHz, as
well as GMR at 1556 MHz can be received just fine with the R820T.
Also, the PLL could lock again at 1850 MHz to 1860 MHz, and the
reception of a GSM 1800 BTS at 1854 MHz worked as well.
Some initial comparisons between the E4000 and R820T seem to hint
at the R820T being a bit more sensitive, especially visible in the
Tetra screenshots
Specifications:
Color:black
size: (L*W*H)about 8.5* 2.5* 1cm
Support operating: System Windows 7
Support resolution: 1080P
Type: TV box
Video input: Wireless transmission
Video output: USB2.0
Bag size: length 20* width 15* height 1cm
Remote control power by: Button battery(include)
Package Included:
1x USB DVB-T Stick
1x Extra powerful antenna
1x Driver and software CD
1x Remote control
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.
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