3 ms·

Not for the faint of heart :) Is there a off the shelf product ?

by devy 10y ago

dbcurtis 10y ago
Spectrum analyzer and appropriate antenna.
deleted 10y ago
[deleted]
cdawzrd 10y ago
RF Explorer is a "budget" option at around $300-400: http://rfexplorer.com/models/ http://rfexplorer.com/models/ Professional handheld spectrum analyzers are in the $3k-50k range from the likes of Keysight, Anritsu, etc.
- tegansnyder 10y ago
  Many vendors will also rent out them by the day. There used to be a company in Denver that did back in my WISP days.
Florin_Andrei 10y ago
Plug a cheap SDR dongle into your laptop and install some free software SDR app. http://www.rtl-sdr.com/ http://www.rtl-sdr.com/ It might seem like the poor man's approach, but plug a good Yagi antenna into that dongle and it becomes quite powerful.
- platz 10y ago
  with an android phone and a usb-otg cable, you can plug the rtl-sdr directly into your phone and use an app to view/listen to the spectrum
  - morganvachon 10y ago
    The rtl-sdr dongle I have (ATS-B receiver) draws too much current to be used with my tablet (Nexus 7 2013). At minimum, a powered USB hub would be required in this setup for it to work properly.
    - platz 10y ago
      I have a RTL2832U/R820T reciever ( https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Packages/dp/B009U7WZCA/ https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Package...) (note - there are newer models now) and it works fine with a samsung galaxy note 3. http://sdrtouch.com/ http://sdrtouch.com/
- superkuh 10y ago
  rtl_power frequency hops at about 80 MHz/s max. You can use https://github.com/xmikos/qspectrumanalyzer https://github.com/xmikos/qspectrumanalyzer or many other rtl_power frontends to see it in real time as you point the antenna. For windows there's https://github.com/pavels/spektrum https://github.com/pavels/spektrum Another approach seen on hackernews in the past had an omnidirectional antenna and used GPS tagging to make heatplots at different frequencies overlayed on a map. ref: http://www.tautology2.net/heatmap/ http://www.tautology2.net/heatmap/ It uses the http://eartoearoak.com/software/rtlsdr-scanner http://eartoearoak.com/software/rtlsdr-scanner software.

Not for the faint of heart :) Is there a off the shelf product ?

by devy 10y ago

Not for the faint of heart :) Is there a off the shelf product ?

dbcurtis 10y ago

Spectrum analyzer and appropriate antenna.

deleted 10y ago

[deleted]

cdawzrd 10y ago

RF Explorer is a "budget" option at around $300-400: http://rfexplorer.com/models/ http://rfexplorer.com/models/ Professional handheld spectrum analyzers are in the $3k-50k range from the likes of Keysight, Anritsu, etc.

tegansnyder 10y ago
Many vendors will also rent out them by the day. There used to be a company in Denver that did back in my WISP days.

Florin_Andrei 10y ago

Plug a cheap SDR dongle into your laptop and install some free software SDR app. http://www.rtl-sdr.com/ http://www.rtl-sdr.com/ It might seem like the poor man's approach, but plug a good Yagi antenna into that dongle and it becomes quite powerful.

platz 10y ago
with an android phone and a usb-otg cable, you can plug the rtl-sdr directly into your phone and use an app to view/listen to the spectrum
- morganvachon 10y ago
  The rtl-sdr dongle I have (ATS-B receiver) draws too much current to be used with my tablet (Nexus 7 2013). At minimum, a powered USB hub would be required in this setup for it to work properly.
  - platz 10y ago
    I have a RTL2832U/R820T reciever ( https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Packages/dp/B009U7WZCA/ https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Package...) (note - there are newer models now) and it works fine with a samsung galaxy note 3. http://sdrtouch.com/ http://sdrtouch.com/
superkuh 10y ago
rtl_power frequency hops at about 80 MHz/s max. You can use https://github.com/xmikos/qspectrumanalyzer https://github.com/xmikos/qspectrumanalyzer or many other rtl_power frontends to see it in real time as you point the antenna. For windows there's https://github.com/pavels/spektrum https://github.com/pavels/spektrum Another approach seen on hackernews in the past had an omnidirectional antenna and used GPS tagging to make heatplots at different frequencies overlayed on a map. ref: http://www.tautology2.net/heatmap/ http://www.tautology2.net/heatmap/ It uses the http://eartoearoak.com/software/rtlsdr-scanner http://eartoearoak.com/software/rtlsdr-scanner software.