User Tools

Site Tools


This is an old revision of the document!



    • This particular model is $20 off DealExtreme, but you can find them all over the place now, sometimes on sale for less than $10. Just check to make sure it's compatible with the software you want to use.
    • Covers 64 MHz – 1700 MHz
  • Laptop


  • Replacement antenna

Replacing the Antenna

The antenna that comes with the USB dongle is small. You can easily get much better signal reception by replacing it with a better antenna, or one better matched to the frequency range you want to listen to. Many of the USB dongles use a PAL connector. You can purchase IEC PAL male to BNC or SMA adapters for less than $4 on eBay. Once you have an adapter, you can easily connect another antenna.

You can purchase telescopic CB or scanner radios with BNC connectors for under $10 online.

Making your own antenna is fairly easy, too. See the projects page for instructions on making some antennas.

Local Radio Frequencies

You can also check the giant list of frequencies.

Frequency Mode Station
144.390 MHz NFM APRS Calling Frequency
147.060 MHz NFM W4LEE Repeater
147.240 MHz NFM K4RY 2m Repeater MHz NFM Auburn Fire Dispatch
155.610 MHz NFM Auburn Police Dispatch
162.525 MHz NFM NOAA Weather Radio Station WWF54
444.800 MHz NFM K4RY 70cm Repeater

Running on Windows with SDR Sharp

  • Follow this setup guide for Windows to setup SDR#.
  • The frequency shown in SDR# may be off from the actual frequency the dongle is tuned to. In my experience, it's typically 0.01 MHz or 10 kHz high.
  • WEGL will saturate your receiver if you are on campus, especially if you're tuning around 91.1 MHz. You can actually pick up WEGL without the antenna connected at all! That's what happens when you're within a mile of a 3 kW transmitter.

Running on Linux with GNURadio

usbsdr.1415240701.txt.gz · Last modified: 2014/11/05 20:25 by cwh0009