The first thing to know is that there are three functions served by grounding in ham shacks: 1. Electrical Safety 2. Stray RF Suppression (or simply RF Grounding) 3. Lightning Protection. Each has it's own set of requirements, but not all station setups need every kind of ground. In fact, some setups don't use a ground at all!

2013年10月22日 · In summary, for good balanced antennas such as dipoles, Yagis, and similar geometries, RF grounding should not be necessary. If you have an unbalanced antenna like a vertical or a single long-wire antenna, or an inverted-L, or similar then a ground plane (RF ground) is required for efficient operating.

Station Grounding References. On this page are links to additional on-site and off-site references providing some theory, practical, and data results from a variety of electrical, broadcast and commercial radio experts. EACH piece of equipment should be connected by a single discrete unique conductor to THE SINGLE RF/STATION ground bonding point.

RF grounding requirements are very real, somewhat difficult to measure, and unseen in operation. A common term that is used in RF grounding is “skin effect.” In a ground system the majority of electrons run along the surface (or skin) of the conductor. A good RF ground has the least amount of resistance to electrons being conducted to ground.

In a case with unwanted common mode currents, a station or equipment ground can also decrease TVI or RFI. The ground might do this by giving unwanted current someplace harmless to flow, keeping RF out of power lines, CATV lines, and telephone lines.

Station RF Ground The station ground must provide both effective DC and RF grounding. Creating a good DC ground is not a problem, but an effective RF ground must be carefully planned. The ground system should generally follow these suggestions:

2021年11月24日 · The book brings together material from numerous Amateur Radio and industry sources to present a comprehensive picture of basic grounding and bonding practices related to ac electrical safety, lightning protection, and the management of RF currents and voltages in the typical ham station.

RF Ground. Starts with a ground rod located outdoors as close to your station shack as possible. You may also consider grounding to a metal cold water pipe if you can’t get to a ground rod. You should bond your station’s ground to your electrical service ground.

2024年7月29日 · Learn about the importance of RF grounding in your ham radio station in this detailed technical article from an experienced amateur operator.

The station electrical, and to a lesser extent the RF, grounding system provide protection against hazards from equipment and lightning in the shack. However, the use of artificial grounding methods also has a place where antenna efficiency is concerned - at least in the case of vertical ground mounted antennas (reference our discussion earlier).