RTL-SDR V4 receiver with antenna kit

L RTL-SDR BLOG V4 is the new generation of popular SDR receivers USB, designed specifically for the needs of radio amateurs and experimenters. Compared to V3, the V4 version offers improved HF reception technology, optimized filters and more efficient power and heat management.

frequency intervals

reception from 500 kHz to 1.766 GHz

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  HF (short waves): integrated uponverter up to 28.8 MHz

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  VHF/UHF: Full range of the Tuner R828d

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Main improvements compared to the V3

• HF reception via uponverter instead of direct sampling: no aliasing problem, improved sensitivity, adjustable HF gain

• Frontend with Triplexer : separates HF, VHF and UHF bands for better insulation and minor interference

• additional notch filters for AM, FM and DAB bands to mitigate strong transmission signals

• improved phase noise thanks to an optimized diet design

• less generation of heat and slightly reduced current consumption

technical data

tuner: r828d

adc: rtl2832u, 8 bit

bandwidth: stable up to 2.56 MHz (up to 3.2 MHz with possible losses)

input impedance: 50 Ω

absorption: 250–270 Ma via USB

Connectors: SMA , USB-A

Frequency stability: tcxo 1 ppm

Bias-tee controllable via software (4.5 V, 180 mA)

robust aluminum houses with thermal dissipation

compatibility

compatible with the main SDR software such as SDR#, SDR ++, SDR Console V3, GQRX and many others. It works with Windows, Linux, MacOS, Android and single -card computer such as Raspberry Pi. Updated drivers are required. {

conclusion

The RTL-SDR Blog V4 is a compact, versatile and powerful SDR receiver. With the new HF Upconverter, improved filtering and optimized performance in terms of noise, represents a clear step forward compared to the V3 version - ideal for both beginners and expert SDR users. {