The most important part of a ham radio station is probably the antenna. Setting up a fancy new radio is easy but properly installing and tuning an antenna can be difficult, and neighborhood and space restrictions can force a ham to compromise with a smaller antenna than he would like.
Since I live in a residential neighborhood my "antenna farm" consists of small antennas mounted low. Trees block much of the view to the neighbors. Here are some photos and descriptions of the various antennas currently in use at KR7RK:
This was my main antenna from 1993 until May, 2008. A Rohn 25 tower held the main base station antennas. The tower was 30 feet tall and at the top was a Cushcraft A3-S HF beam. The beam covered the 10, 15, 20, and 40 meter bands, and is connected to an FT-2000D in the shack for worldwide QSO's on SSB, CW, and other modes. To the left of the tower is a Comet GP-15 vertical, which covers 6m, 2m, and 70cm. The GP-15 is connected to a quad-bander FT-8900R in the shack and is used for local FM communications. On the right, a wind anemometer feeds data to the weather station in the shack. Next to that, mounted apart from the tower, is a Cushcraft AR-270 vertical which covers 2m and 70cm. The AR-270 is used primarily for APRS on 2m using FM.
You can also see Xanadu Observatory towards the back of my yard.
This is a 10-meter Solarcon A-99, an inexpensive vertical. When 10 is open, it works.
HF is possible even from a small car. The Yaesu ATAS-120 screwdriver is used with an FT-857D to work the world. It's stored in the trunk when not in use.
On the right is a small commercial dual-bander which has been cut to operate on the 2m and 70cm ham bands. It's connected to an Alinco DR-610T and is used for local repeater and simplex operations on FM.
I'll get some pictures of the truck antenna systems soon.
Sometimes a portable antenna is used. Here is KR7RK and KR7YAN listening to an amateur satellite, AO-51, using an Arrow II 146/437-10WBP. It's a lightweight beam for 2m and 70cm.
Other antennas in use (pictures may be coming soon) include a homebrew Buddipole for multi-band HF; a 6m beam from M2 Antennas (not yet installed); an MP-1 portable screwdriver for ultra-portable use with the FT-817; a Cushcraft 2m yagi; and of course numerous whips and such for mobile and HT operations.