Novice CW Transmitter

Posted on Feb 5, 2014

Even though this CW transmitter circuit was published in 1955 in Popular Electronics, it is still legal for today`s Amateur radio operator. Portions of the 40-meter and 80-meter bands are still reserved exclusively for CW operation. As of 2011 in the 40-meter band 7. 025 - 7. 125 MHz, and for 80-meters 3. 525 - 3. 600 MHz are reserved for CW for Hams holding either Novice (no longer issued) or Technician licenses.

Novice CW Transmitter
Click here to download the full size of the above Circuit.

That is different than the frequencies given in the article, so beware if you are tempted to throw one together for old time`s sake. The value for XTAL will need to be changed accordingly. Both bands are a bit lower than shown here, so you might need to tweak the tuning elements a tad as well. If you are not a designer, you would be better off just finding a newer circuit that is already configured for the new bands. The beginner in ham radio with a novice license should become active as quickly as possible with a low-powered telegraph (CW) transmitter. Operating this rig as often as he can will give valuable on-the-air experience in handling the code and in correct operating procedure. The best way to learn is by doing. A novice`s first transmitter should be both simple and inexpensive. A good idea is to use the lower frequency bands. There, the new operator usually will find more "rag chewers" and local contacts than on the higher frequency long-distance bands. In the 80-meter band, novice CW operation is permitted between 3700 and 3750 kc. In the 40-meter band, the novice`s territory is 7175 to 7200 kc. Crystal control must be used. The transmitter shown here was made especially for beginners. While it is low-powered, it will give a good account of itself when operated with a good antenna. It does not take up much room, since it is built on an aluminum radio chassis box (Bender Type 145) 7" long, 5" wide, and 3" high....

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