First off I have been a ham radio operator since the 80s and hold an extra class (top) rating. I was looking for a very portable scanner that I could take along on my travels to listen to airline frequencies (also a private pilot) that wouldn't take up a lot of space in my full under seat bag nor look suspicious while in the airport, as a standard scanner might.
The good news is that it does work, the bad news is that there are some limitations. The idea of slapping a small antenna on it and plugging into a cell phone or tablet with an OTG adapter is not feasible. The main issue is that the SDR radio draws more power than the OTG via the usb port can deliver. Solution, purchase a powered USB cable. This allows you to plug one end into a charging battery, which I always travel with, which powers the radio and doesn't drain the phone or tablet.
https://www.amazon.com/Degree-Angled-Female-Enhancer-Adapter/dp/B071X8BCFH/ref=sr_1_3?keywords=powered+usb+cable+otg&qid=1552141974&s=gateway&sr=8-3
Then you will need an extension USB cable to the phone or tablet so you can place the unit in suitable position, and any adapters to your particular phone, USB to C, etc. Easily done and not expensive.
Then there is the antenna! The beauty of this Radio is that it is extremely wide band covering below commercial FM to 1.700 Ghz or more. This covers most of the commercial bands including Aircraft, first respondeners, most walkie talkie and even cell phones. Note that many systems on those bands are encrypted and not easily monitored.
The beautiful thing about this SDR radio is the spectrum display, or "waterfall" which will show you a chunk of the band and all the active frequencies. You are able to simply slide your virtual vernier to a hot spot and monitor the frequency. In addition there is a running visual display of all the activity on that part of the spectrum so you can see frequencies with intermittent activity. You also can easily select all the common radio modulation schemes, like AM, FM, FM narrow, amateur radio SSB USB, LSB and CW, etc.
Of course, you will need an antenna and unfortunately antennas are tuned to the frequencies you want to listen to. Very critical if you are transmitting, less so for receiving. For example, international ham radio frequencies have a wave length of around 65 feet (20 meters) the length of a full wave antenna. 1/4 wave antennas also work at approximately 16 feet. Not practical to carry around plus you will need an additional adapter (Ham it up) to receive the lower frequencies. On the other hand a 1700 MX signal close to the top end of LTE cellphone data as a full wave length of 6".
For receiving a wide band scanner antenna is probably your best bet like:
https://www.amazon.com/AEcreative-Wide-Band-Scanner-BCD396XT-BCD436HP/dp/B07HWLSNQP/ref=sr_1_8?crid=3RCJLW4EP4MW&keywords=wideband+scanner+antenna&qid=1552143429&s=electronics&sprefix=wide-band+scanner+antenna+%2Celectronics%2C205&sr=1-8
When looking for an antenna you will need an SMA female connector.
Lastly, you will need software for your phone, tablet or computer. Some of it is open source and free (donation) and others have a demo version and a small fee ($5-10) for the Android / IOS versions. Try before you buy!
All in all a great product with serious applications.
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Comprados juntos habitualmente
Este producto: Nooelec RTL-SDR v5 SDR - NESDR SMArt HF/VHF/UHF (100kHz-1.75GHz) Radio definida por software. RTLSDR premium con TCXO 0.5PPM, entrada SMA y carcasa de aluminio. Radio basada en RTL2832U y R820T2
US$33.95
Recíbelo el martes, 30 de julio
Disponible
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US$8.99
Recíbelo el martes, 30 de julio
Disponible
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US$8.99
Recíbelo el martes, 30 de julio
Disponible
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Opiniones con imágenes
Great hobby item for radio enthusiasts!!
I run this along with 2 SDR.COM dongles 24/7 as a police trunking scanner. While BOTH brands of dongles are awesome, the Nooelec has a slightly better bandwidth, which comes in handy when trunking.Yeah, for about $90 for the three, I have a $600 Trunking Scanner, A $300 Shortwave Radio, $100 CB Receiver, a $200 AM/FM receiver, and a $900 HAM receiver that can even pick up NOAA weather satellites as they pass and show the satellite image!!If you or anyone you know enjoys the radio hobby, or are just interested, this is the LEAST expensive way to do it. BUY TWO!!HOURS of FUN!!
Opiniones destacadas de los Estados Unidos
Ha surgido un problema al filtrar las opiniones justo en este momento. Vuelva a intentarlo en otro momento.
Calificado en Estados Unidos el 9 de marzo de 2019
Calificado en Estados Unidos el 19 de abril de 2018
Calificado en Estados Unidos el 29 de diciembre de 2023
What used to cost $1,000 and sit on a desk 10 years ago now costs less than a toaster and plugs into a USB port, truly amazing. Using a pair of these as a dual-band ADSB/UAT airplane receiver on a Pi 4; tracking all air traffic within 300 miles with only a LNA in-line and a fiberglass roof antenna. SDR does get hot while working but stabilizes thanks to the preimum metal enclosure which acts like a giant heatsink dissipating heat quickly. Worth every penny!
Imágenes en esta reseña
Calificado en Estados Unidos el 25 de julio de 2022
Opiniones más destacadas de otros países
Llegó en excelentes condiciones. Piezas completas.
Excelente calidad-precio
Calificado en México el 11 de diciembre de 2023Michael Franke
Blir varm, men funkar bra.
Opinión escrita en Suecia el 19 de julio de 2024Loekie
Excellent reception, indeed 0,5ppm.
Calificado en los Países Bajos el 18 de julio de 2024
