Is there a smaller antenna available that will work on this scanner. This scanner is a bit too tall for where I want to put it.
It would be helpful if we knew what frequencies you are going to be monitoring. VHF, UHF, 800, etc.
However, the antennas mentioned can be really good depending on what it is you wish to monitor.
In general, the higher the frequency the smaller the antenna can be and still perform well.