the condenser which
you use in series with it for tuning. It also depends upon how much
inductance there is in the coil which you have in the antenna circuit.
The table gives values of inductance in the first column, and of minimum
wave-length in the second. The third column shows what is the greatest
wave-length you may expect if you use a tuning condenser of 0.0005 mf.;
and the fourth column the slightly large wave-length which is possible
with the larger condenser.

TABLE I

Part 1. (For antenna of 0.0001 mf.)

Inductance in Shortest wave-length Longest wave-length in meters
mil-henries. in meters. with 0.0005 mf. with 0.001 mf.

0.10 103 169 179
0.20 146 238 253
0.40 207 337 358
0.85 300 490 515
1.80 400 700 760
2.00 420 750 800
4.00 600 1080 1130
5.00 660 1200 1260
10.00 900 1700 1790
30.00 1600 2900 3100

Part 2. (For antenna of 0.0002 mf.)

0.10 169 225 240
0.16 210 285 305
0.20 240 320 340
0.25 270 355 380
0.40 340 450 480
0.60 420 550 590
0.80 480 630 680
1.20 585 775 840
1.80 720 950 1020
3.00 930 1220 1320
5.00 1200 1600 1700
8.00 1500 2000 2150
12.00 1850 2400 2650
16.00 2150 2800 3050

From Table I you can find how much inductance you will need i