Question 1

Does it natively support active antennas without using a Bias-T?

Accepted Answer

No, not on this particular model.  A native bias-tee of any sort will cause loss (reduction in sensitivity), regardless of design.  As such, our general recommendation is to use a well-designed external bias tee whenever possible--as it can be completely removed from circuit when not needed.  If impossible, or if your budget will not permit such a solution, the next best thing is having 2 SDRs, one with an active or switchable native bias-tee and one completely without such a circuit for passive antennas.  Of course, if you are planning on only EVER using an active antenna with your SDR, an always-on or switchable bias-t is just fine :)Hope this helps!  Please feel free to reach out to us any time with questions or concerns, and thank you for your support

Question 2

Does it need driver files for Window notebook? If so, where can I get the driver?

Accepted Answer

A file named zadig appears to be magic in getting RTLSDR up and running.  I just had to go back thru this again when I tried to fire up my RTL system for the first time in maybe six months.  Do a web search for "zadig" and download the file from one of the sources (not many).  Open it up and run the zadig.exe file.  The hard part is getting the right configurations into thr zadig window.  Then hit the "replace file" button.    If you got it right, things should start working.

I'm sure you can find more detailed and complete guidance from some web sights, in particular RTLSDR.com, but this gives you the general idea.  Good luck with it - the SMArt makes quite a nice little shortwave radio with with an HF upconverter feeding the SMArt.

Question 3

Does it transmit?

Accepted Answer

No you cannot transmit with it

Question 4

If I want to listen to trunked P25 or trunked DMR, are two dongles required?

Accepted Answer

Yes, you can use ONE sdr now to listen to P25 phase I and phase ii. How it works is the dongle will monitor the control channel and the transmission channel within the bandwidth of the sdr. You will get better and more calls with 2 sdrs. The key is to find the frequency of the P25 system you want to monitor and build a good antenna for it, get it elevated.

ASIN	B01HA642SW
Amazon 売れ筋ランキング	家電＆カメラ - 25,230位 ( 家電＆カメラの売れ筋ランキングを見る ) 無線・トランシーバー - 200位
UPC	616469145857 616469145864
おすすめ度	4.4 5つ星のうち4.4 (2,825) var
アンテナの説明	ラジオ
カラー	グレー
コネクタータイプ	SMA
チューナータイプ	DVB-T2
メーカー名	Nooelec Inc.
メーカー型番	100701
リモコン付属	いいえ
互換デバイス	Laptop, Desktop, Tablet, Smartphone
原産国	アメリカ合衆国
品目寸法（L x W x H）	9長さ x 1幅 x 1高さ cm
型番	NESDR SMArt SDR
外部機関認定情報	Não aplicável
通信・接続インターフェース	USB

Nooelec RTL-SDR v5 SDR - NESDR SMArt HF/VHF/UHF (100kHz-1.75GHz) ソフトウェア無線。プレミアム RTLSDR、0.5PPM TCXO、SMA 入力、アルミニウムエンクロージャ付き。 RTL2832U & R820T2 (R860) ベースのラジオ

Details

Details

Description

Specifications

Common Questions

Nooelec RTL-SDR v5 SDR - NESDR SMArt HF/VHF/UHF (100kHz-1.75GHz) ソフトウェア無線。 プレミアム RTLSDR、0.5PPM TCXO、SMA 入力、アルミニウム エンクロージャ付き。 RTL2832U & R820T2 (R860) ベースのラジオ

Details

Details

Description

Specifications

Common Questions

Nooelec RTL-SDR v5 SDR - NESDR SMArt HF/VHF/UHF (100kHz-1.75GHz) ソフトウェア無線。プレミアム RTLSDR、0.5PPM TCXO、SMA 入力、アルミニウムエンクロージャ付き。 RTL2832U & R820T2 (R860) ベースのラジオ