WWV_TO_75_m_BAND_CONVERTER

Published:2009/7/12 23:04:00 Author:May | From:SeekIC

This circuit for an HP-band converter will convert the 10-MHz WWW signal to a frequency in the 75-m ham band. The local oscillator section of NE-602 is available on pins 6 (base) and 7 (emitter). In this circuit, a 6.00-MHz crystal oscillator is provided by the NE-602. Capacitors C1 and C2 form the feedback network. The junction of C2 and XTAL1 can be connected to either the 15-Vdc line or ground (the former is shown here). The difference frequency between WWV's 10 MHz and the 6.00-MHz crystal frequency is 4.00 MHz, which is located at the top end of the 75-m ham band. Crystals with other frequencies will produce other output sum or difference frequencies, so tune the receiver appropriately if something other than 6.00 MHz is used.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/WWV_TO_75_m_BAND_CONVERTER.html

Print this Page | Comments | Reading(3)