Build your own Three Element Yagi:
23 centimeters data sheet
Total length of copper tubing required for antenna elements: 1' 4"
Total length of wood required for antenna boom: 6"
ELEMENT             LENGTH (in.)       SPAC. TO REF. (in.)   ELE. DIA. (in.)
Reflector             5.6563                     0               0.25000
Driven                4.4063                1.7500               0.25000
Director  1           4.1250                3.5000               0.25000

Normalized Radiation Resistance at 1295.924 MHz is 323 Ohms
FREQ (mHz)   GAIN (dBi)    F/B (dB)          IMPEDANCE (ohms)      VSWR
 1240.000     8.75        5.76               12.39+j32.09         9.77
 1241.364     8.72        5.63               12.37+j32.96         9.44
 1242.728     8.70        5.51               12.36+j33.84         9.10
 1244.092     8.67        5.39               12.35+j34.72         8.77
 1245.456     8.65        5.27               12.35+j35.61         8.45
 1246.820     8.62        5.15               12.35+j36.5          8.12
 1248.184     8.59        5.03               12.36+j37.39         7.80
 1249.548     8.56        4.91               12.37+j38.29         7.48
 1250.912     8.52        4.80               12.39+j39.19         7.17
 1252.276     8.48        4.68               12.42+j40.09         6.86
 1253.640     8.45        4.57               12.45+j41.00         6.56
 1255.004     8.41        4.45               12.48+j41.91         6.26
 1256.368     8.37        4.34               12.52+j42.82         5.97
 1257.732     8.32        4.23               12.56+j43.74         5.69
 1259.096     8.28        4.12               12.61+j44.66         5.41
 1260.460     8.23        4.01               12.67+j45.58         5.14
 1261.824     8.19        3.90               12.73+j46.5          4.88
 1263.188     8.14        3.80               12.8+j47.43          4.62
 1264.552     8.09        3.69               12.87+j48.36         4.37
 1265.916     8.04        3.59               12.94+j49.29         4.14
 1267.280     7.98        3.48               13.03+j50.22         3.91
 1268.644     7.93        3.38               13.12+j51.16         3.69
 1270.008     7.87        3.28               13.21+j52.09         3.47
 1271.372     7.81        3.18               13.31+j53.03         3.27
 1272.736     7.75        3.08               13.41+j53.98         3.07
 1274.100     7.69        2.98               13.52+j54.92         2.89
 1275.464     7.63        2.88               13.64+j55.86         2.71
 1276.828     7.57        2.79               13.76+j56.81         2.54
 1278.192     7.51        2.69               13.89+j57.76         2.38
 1279.556     7.44        2.60               14.02+j58.71         2.23
 1280.920     7.38        2.51               14.16+j59.66         2.09
 1282.284     7.31        2.42               14.31+j60.61         1.96
 1283.648     7.25        2.33               14.46+j61.57         1.83
 1285.012     7.18        2.24               14.61+j62.52         1.71
 1286.376     7.11        2.15               14.77+j63.48         1.60
 1287.740     7.04        2.06               14.94+j64.44         1.49
 1289.104     6.97        1.98               15.11+j65.40         1.40
 1290.468     6.90        1.90               15.29+j66.34         1.31
 1291.832     6.83        1.81               15.47+j67.31         1.22
 1293.196     6.76        1.73               15.66+j68.28         1.14
 1294.560     6.69        1.65               15.85+j69.23         1.07
 1295.924     6.62        1.57               16.05+j70.2          1.00
 1297.288     6.55        1.49               16.26+j71.16         1.06
 1298.652     6.48        1.42               16.47+j72.13         1.12
 1300.016     6.40        1.34               16.69+j73.09         1.18

BACK | HOME


This page programmed and maintained by Fishing Net Web Design.