Bird Technologies 4304A - Manual (Page 34)

23
20. Multiply by 10 the actual RF source power recorded in Step 15 (the reading
at “40” taken at 405 MHz). Set the RF source to this calculated value and the
frequency to 405 MHz.
21. Adjust R6 until the 4304A meter indicates 400.
Figure 11 Range Adjustment Potentiometers
Storage
When storing the Bird 4304A, turn the element so that the arrow points down
and set the range switch to 5 W. This will shunt the meter circuit and protect the
meter by dampening needle action.
3
9
8
7
2
4
1 10
+
R6
500
R7
150
R8
50
R9
15
R10
5