Fig. 1: Radio-D2-Front
- Cloth: Fine twill
- Embroidery: Cotton lock stitch >
Fig. 2: Radio-D2-Reverse
- Back: Plain NO imprint with starch
Item Name: Radio 1942 - 1945
Item ID: Radio-D2
Collector Rating: 1
Pamphlets Used to Earn this Badge
Requirements December 1940 until December 1942
1. Receive and send correctly a straight text at not less than five words (25 letters) per minute.
2. Know what, if any, licenses are required by Federal Law for the operation of (a) a receiving station; (b) a transmitting station.
3. Know at least five of the most frequently used "Q" signals. Explain the meaning of each.
4. (a) Draw a wiring diagram of a complete receiving set for use on short wave with vacuum tube detector and one stage amplifier. Use correct symbols and show all essential apparatus, including antenna and telephones. Describe each detail of apparatus and explain briefly the use of each.
(b) Using the above diagram, explain how this receiving set could be made to operate also as a miniature transmitter.
5. Construct a working receiving set and demonstrate its operation by receiving signals from at least ten different stations.
6. Explain how to install an antenna for use in receiving equipment and how to ground it properly and protect it against lightning and power wires.
NOTE: The holding of a first grade amateur operator's license and a regular or special amateur station license will exempt the holder from examination on all requirements above except 4. (a) and (b) and 5. Such licenses must be in force at the time the Badge is awarded.
Requirements December 1942 until April 1950
1. Receive and send correctly a straight text at not less than five words (25 letters) per minute.
2. Know what, if any, licenses are required by Federal Law for the operation of (a) a receiving station; (b) a transmitting station.
3. Know at least five of the most frequently used "Q" signals. Explain the meaning of each.
4. (a) Draw a wiring diagram of a complete receiving set for use on short wave with vacuum tube detector and one stage amplifier. Use correct symbols and show all essential apparatus, including antenna and telephones. Describe each detail of apparatus and explain briefly the use of each.
(b) Using the above diagram, explain how this receiving set could be made to operate also as a miniature transmitter.
5. Construct a working receiving set and demonstrate its operation by receiving signals from at least ten different stations.
6. Explain how to install an antenna for use in receiving equipment and how to ground it properly and protect it against lightning and power wires.
NOTE: The holding of an amateur operator's license will exempt the holder from examination on all requirements above except 4. (a) and (b) and 5. Such licenses must be in force at the time the Badge is awarded.