Frequency Counter Schematics

Electronics Infoline Web

50 MHz frequency counter

with voltage meter & SWR/Power indicator

http://lea.hamradio.si/~s57nan/ham_radio/fc_led_2/fcl2.html

http://www.web-ee.com/Schematics/FrequencyCounter/napier121.pdf

http://images.electronicsinfoline.com/View/Photo/10001/thumb_freq.gif

with date/time output

http://www.microchipc.com/sourcecode/PIC_Hi-Tech_C_Mike_Pearces_PulseMon.zip

http://www.discovercircuits.com/PDF-FILES/beectr.pdf