rtl2832u & r820t tuner, mcx input. low-cost software definedradio compatible with many sdr software packages
i did a little informal testing between the two sticks using sdrsharp using the supplied whip antennas. these tests were just totake a look at the real world performance between the chipsets onsome commonly used frequency range. i am sure that at some pointsomeone will do some more accurate testing, but these real worldlistening tests will at least give you a rough idea of thedifferences between the two dvb-t sticks. here is a synopsis of theresults.
fm broadcast band
the e4000 seemed to be noticeably more sensitive in this area. ther820t did fairly well also, but the e4000 definitely did a betterjob with very weak signals. this might make the e4000 a bettercandidate for use with a hf converter since most of the inexpensiveones available  convert hf to the fm band on the rtl2832usticks.
airband
both sticks exhibit a lot of susceptibility to rfi in this band inmy environment. both failed to pick up a weak asos signal at132.875mhz that i can usually receive on most scanners with a whipantenna. both sticks will do much better with an external antennaand both will receive stronger nearby aircraft signals easily withthe whip. overall the two sticks were fairly close in performancewith a tiny edge going to the r820t.
noaa weather band
both sticks were able to receive the local noaa  weatherbroadcast at 162.400mhz with their whip antennas with no problems.again the r820t was slightly stronger.
800 mhz trunking
this is where the r820t really began to become noticeably moresensitive. while the e4000 could receive the same signals, ther820t signals were noticeably stronger and clearer.
1090mhz ads-b aircraft navigation signals
here the r820t totally “wipes the floor” with the e4000. ads-bsignals were tremendously better with the r820t. this makes ther820t a much better choice to use as an inexpensive ads-b receiverwith gr-air-modes.
10 meter amateur radio band 
the e4000 cant go here, but the r820t can. actually the r820t cando a fairly good job with signals here. however, the r820t is notgoing to compete with a competent hf radio. just consider it as a“bonus”.
at the the end of the day, i would have to declare the r820t thevictor in this shootout, if you are willing to give up a littleperformance tradeoff in the fm broadcast band. the r820t appears tobecome a tad more sensitive starting around 160mhz with largergains the higher you go. the r820t seems much better suited formonitoring higher frequency signals such as 800mhz trunking systemsand most definitely ads-b. also you do get additional coverage from24mhz to 30mhz.
rtl2832u和r820t调谐器，mcx输入。低成本软件的定义很多sdr软件兼容的无线电
我也使用sdr锋利的使用提供的鞭天线两杆之间的一个非正式的测试。这些测试是将一些常用的频率范围之间的芯片组的真实世界的性能一看。我相信在某一点上会有人做一些更准确的测试，但是这些现实世界的听力测试至少会给你两个dvb-t的区别一个粗略的棍子。这是一个结果的概要。
调频广播频段
该e4000似乎在这方面明显更敏感。该r820t做得相当好，但e4000的确与非常微弱的信号，一个更好的工作。这可能使e4000使用更好的候选人有一个高频变换器由于大多数可用的便宜的转换hf对rtl2832u fm带棒。
airband
两条具有很大的敏感性在我的环境在这一频段的射频干扰。既没有拿起微弱信号132.875mhz asos我通常在大多数鞭状天线扫描器接收。两个棍棒将与外部天线都做得更好，会收到很容易用鞭子附近飞机的强信号。两个棍棒在整体性能相当密切的与一个小的边缘去r820t。
noaa天气波段
两支能够在没有问题，他们162.400mhz鞭天线接收当地气象广播。再r820t略强。
800兆赫集群
这就是r820t真的开始变得明显更敏感。而e4000可以获得相同的信号，信号的r820t明显更强大和更清晰的。
1090mhz本ads-b的飞机导航信号
这里的r820t完全擦地板”与e4000。ads-b信号与r820t非常好。这使得r820t使用作为一种廉价的ads-b接收机gr空气模式更好的选择。
10米的业余无线电波段
该e4000不能在这里，但r820t可以。其实r820t可以与信号在这里会很好。然而，在r820t不会与主管的高频无线电竞争。只是把它作为一个“奖金”。
在一天结束的时候，我将不得不宣布r820t在枪战的胜利，如果你愿意放弃在fm广播带一点点的性能折衷。该r820t似乎成为一个敏感的孩子开始在更大的收益就越高160mhz。该r820t似乎更适合更高频率的信号，例如800mhz集群系统和最肯定的ads-b还你从24mhz～30mhz得到额外的覆盖监测。
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