[nrv-hams] FM CW on an HT? Why not!?

Cam Coble cam at doubleclickdata.com
Sat Mar 30 00:31:14 EDT 2019


There has been some interest in CW practice and I thought I would share an
option for generating CW using FM and your HT.
This is a simple circuit using a 555 timer, and was featured in the July
1997 issue of QST.

http://www.arrl.org/files/file/protected/Group/Members/Technology/tis/info/pdf/9707053.pdf

*QST* July 1997, pp. 53-54
*Need some on-air code practice? Build this handy device and start your own
FM CW "net."*
*Note*: R8 is a 4.7kOhm potentiometer.
C2 in the diagram should read 0.01 mF as stated in the parts list.

Build one and bring it to our Blings 'n' Things!!!
73
--
Cam - W4XXV


More information about the nrv-hams mailing list