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john bero
> 3 dayNEVER WORKED
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Mr. Beau Cole
> 3 dayit does everything I need it to. frees up a two way radio that I typically use to monitor freqs. The high the freq you listen tot he hotter it gets. small CPU fan works well to solve that. not a complaint just a fact of life with electronics.
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Eric
> 3 dayIt’s a good product. It does what it says.
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Mr. Jackson Stoltenberg I
> 3 dayThis is exactly as described. I have two of the common silver ones and one is off by 500 PPM, the other by a bit more than that. However, this NESDR is spot-on on the tuning, as promised, and the signal from it is clear and strong. Very pleased with the purchase. I have used it under Windows 10 (use the zadig.exe utility from SDRSharp to set the correct drivers) and Ive used it on Raspbian Linux on a Raspberry Pi 3a+ to run trunk-recorder and liquidsoap streaming the local P25 trunked radio traffic to Broadcastify as a source. I can only get one dongle to work at a time on the Raspberry Pi before the USB bus is saturated (my assumption), but it locks up when I plug in a second silver website branded RTL-SDR along with this one (even after assigning unique serial numbers to each). Luckily everything fits within a 2.4 Mhz band, so I only need one, but Im limited to three simultaneous recordings, when there are five data channels in my system. So I would like to run two dongles and separate the tasks, but thats not possible with my setup. I will try a Raspberry Pi 4, and maybe some other mini computer options in the future. But for now its working. Well built, I havent had any cooling issues, but I have a fan cooled case for the Rasberry Pi and set the dongle next to the case where there is airflow (its on a short usb extension cord). I also have a cheap 800mhz SMA antenna, nothing fancy. Its 15 feet cord length and I placed it in the attic by drilling a hole in the ceiling. I get great reception and clear audio from the scanner.
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Douglas miller
> 3 dayBought two from Amazon. One arrived fine and works fantastic. Much better temperature stability than any others Ive had. That part I love! The other was DOA, and Amazon quickly sent me a replacement. But when I plugged it into my laptop it fried not only itself, but the laptop too, which is now junk. Good thing it was an old laptop. I have a feeling my experience is not normal, so Ill rate it 3 stars. If I could somehow get two working at the same time, Id certainly rate it higher. The one I have Id give a five, easy. Its really good. Im sorely tempted to order another one and hope for better luck. But, well, who knows...
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James
> 3 dayPerforms perfect for running DSD-Trunk listening to Motorola trunked radio.
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Andy F
> 3 dayThis RTL is alot better than the first evolution. It does get slightly warm during hours of use but does not drift in the least.
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MW
> 3 dayReally great SDR for the price. If youre familiar with this type of SDR, youll know its pretty much an accident that these things work perfectly for this application. I really like NooElecs enclosure. Its very sturdy and holds up great. The chip quality is fantastic as well, and I have not had any frequency drift or tuning issues. One really important tip that I highly recommend: Keep it cool. It runs pretty hot. Not hot enough to really decrease its lifespan, but I measured it at around 110 degrees F when set at maximum gain. This temperature increase does add a lot of noise, so if you can keep it cool, you can save yourself a lot of trouble trying to find weaker signals. If you dont need it to be portable, say youre using it with a desktop, find something metal and use some CPU thermal compound to stick it to it. It does the job perfectly, and the temps lowered to around 90 degrees at peak. I stuck it to the steel case of a battery backup I have my computer hooked up to. I just put a drop of thermal compound between the enclosure and the metal of the battery backups case. Then I taped it on with some strong masking tape so it wouldnt come off. Works like a charm.
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Jeffrey
> 3 dayI love these little things Ive got 3 types now ..now Ive got a new one for my carc PC head unit..the programs are a bit tricky but worth the learn..and with a proper antenna I get stations/frequencies like and old school unit
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68whiskey
> 3 dayUsing 5 of these to broadcast p25 phase 2 traffic using OP25. Works like a charm.