| Together with a good directional antenna this high performance two-stage antenna amplifier for the VHF FM broadcast band will enable you to...
N.S. Harisankar (9)
| Most modern handheld transceivers for 2 m and 70 cms ham radio incorporate MOSFET RF power modules and are capable of operating at supply vo...
| A fieldstrength meter (FSM) is extremely useful for radiation gain/loss and radiation pattern measurements, and, in general, to discover why...
| This simple circuit helps you sniff out RF radiation leaking from your transmitter, improper joints, a broken cable or equipment with poor R...
| This rugged power supply is based on the popular LM338 3-pin voltage regulator. The LM338 is capable of supplying 5 A over an output volta...
| Many radio amateurs will not fail to recall the chaotic situations that may occur during fielddays or contests, when several radios have t...
| This compact 13-V/2-A power supply for ham radio rigs and other VHF/UHF portable PMRs is based on the STR2012/13 voltage regulator IC from...
| This circuit is based on the well known LM350T voltage regulator from National Semiconductor, and largely follow the standard application...
| The monitor is a handy aid in cam and is particularlv suitable for radio amateurs who power their equipment from a car battery.