You can certainly find a local electronic dealer near your home that can properly indicate the best oscilloscope for your needs. You can start from our Test Equipment shopping category where you can locate places to buy oscilloscopes.
Here on DXZone we are collecting many links about Oscilloscope.
You can check quality of transmission your transceiver is really sending out. In our hobby, hams can use an oscilloscope as an RF Signal Monitor, usefull to observe the RF envelope from your transceiver. Generally speaking the usage of this particular devices can vary from case to case and needs, and can be applied to several different scenarios. The Oscilloscope is something that should not miss from any serious repairing desk and is also something that you really need if you want to start your electronic measurements.
Among all test equipment that a ham radio operator should be capable to use, one has ever attracted the curiosity of many of us: the Oscilloscope.