RECEIVER_CHECKING_VFO

Published:2009/7/15 23:00:00 Author:Jessie | From:SeekIC

Simple variable-frequency oscillator is combined with attenuator network to generate signal of about 1 μV for checking performance of amateur radio receiver quickly. Attenuator is series arrangement of 47-, 100-, 100-, and 47-ohm resistors, with 1-ohm resistors going from each of the three junctions to ground. LC combinations are chosen for amateur band desired. Circuit will work down to at least 2 meters.-Is It the Band or My Receiver? , 73 Magazine, Oct. 1976, p 132-133.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/RECEIVER_CHECKING_VFO.html

Print this Page | Comments | Reading(3)