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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.
|144.39 MHz||NFM||APRS Calling Frequency|
|147.06 MHz||NFM||W4LEE Repeater|
|147.24 MHz||NFM||K4RY 2m Repeater|
|15x MHz||NFM||Fire Dispatch|
|155.61 MHz||NFM||Police Dispatch|
|165.525 MHz||NFM||NOAA Weather Radio Station WWF54|
|315 MHz||—||Frequency for key-fobs for North American cars|
|433.92 MHz||—||Frequency for European, Asian, and Japanese cars|
|444.80 MHz||NFM||K4RY 70cm Repeater|