into a loop in length
approximately 200 millimeters, then continue winding.
Basket Loop Antenna of a Simple Suitcase
Fig. 5 shows a basket loop antenna
of a superheterodyne receiver
of LW- MW made in a suitcase. The receiver was described in the
The basket magnetic loop antenna is placed on a cover of a suitcase
in which the receiver is placed. More slots - more density of
winding of the loop.
The first section
of the antenna contains 29 turns, it is winded by a Litz wire 10x0,07 (10 wire in diameter of 0,07 millimeters), as a last
resort, this winding can be made by a wire of 0,4-0,5 millimeters
in diameter. The first section starts to reel up from the internal
part of the form. The second
section of the antenna continues winding the first section, it is
winded by a copper insulated wire of 0,2
millimeters in diameter and contains 70 coils. When the antenna
works at MW the first section is shortened. At LW both section of
the loop antenna are in work.
Loop Antenna of a Suitcase Tube Superheterodyne
not only basket loop antennas were used in old receivers. Simple
loop antennas were widely used also. A simple superheterodyne
LW- MW receiver made in