The value of a Beverage termination resistor has nothing to do with the length of a Beverage. Its resistance should be equal to the sum of the surge impedance of the wire to ground plus the value of the resistance of the ground rod. (Having said that, the value of the resistor is really not all that critical.)
Here's an informative page about Beverage ground resistance: http://www.w8ji.com/ground_resistance_measurements.htm If you tell us the wire size and the height above ground, we can calculate the surge impedance for you. You can try it unterminated, but the results may not be what you want at certain frequencies, as this is basically a transmission line on end. Besides, the termination resistor will help reduce unwanted signals and noise off the back. I don't know how it will work on 160 being only 150' long. But I will say that my own 580' Beverages are worthwhile even way down below the AM broadcast band. I suggest that you think about a Slinky Beverage, made from brass slinky toys (Google brass slinky). I think a short slinky will work much better on 160 in only 150'. I personally have no experience with Slinkys, but I've read enough experiences of others on the forums that tried them to believe that short Slinkys really do work well. Check out http://www.w8ji.com/slinky_and_loaded_beverages.htm. 73, Mike http://www.w0btu.com/Beverage_antennas.html On Sat, Nov 12, 2011 at 9:12 AM, Mark Lunday <[email protected]> wrote: > ... Unterminated. 150 foot long each. I am thinking results will be > better if I terminate. But should I use a resistor smaller than 470 ohms > for these shorter bevs? > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
