IW7EHC - projects

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MISCELLANEOUS

[ an easy way to make custom faceplates ]  

[ AF mini amp with LM386 ]

[ 13,8 VDC multisocket ]  

NUE-PSK MODEM

[ modifications and improvements of the NUE-PSK modem ]  

[ modifications and improvements of the miniature keyboard 2366 ]  

SDR (SOFTWARE DEFINED RADIO)  

[ PERSEUS SDR receiver & digital modes ]  

ANTENNAS & ACCESSORIES

[ an easy dipole ]  

[ 15/20/40m wire dipole "UN7JOT" ]  

[ 15/20/40m wire dipole "UN7JOT" version 2 ]   

[ slingshot for wire antennas setup ]  

[ UN-UN for longwire antenna ]

[ EFHWA End Fed Half Wave Antenna ]  

[ I7SWX Windom antenna ]

[ remote antenna selector ]  

CW

[ transistorized CW bug ]

[ CW tone oscillator ]

[ CW keyer with the RMK PIC ]  

[ Soviet Union (made in CCCP) CW key  model TKF ]  

[ Soviet Union (made in CCCP) CW key model TKM ]  

[ East Germany (made in GDR) CW key model K40 ]  

ICOM IC 706 MKIIg

[ CI-V mini interface for  ICOM ]

[ CI-V interface for  ICOM with MAX232 ]   

[ IC706 MKIIg cooling fans mod ]

[ cooling box for IC706 MKIIg ]  

[ automatic band select card ]  

[ 3 ways microphone switch for IC706 MKIIg ]   

YAESU FT817   

[ CAT & digital modes interface for FT817 ]   

[ how to setup CAT & digital modes interface under a single COM port in MixW ]   

MICROPHONES INTERFACES & ADAPTERS

[ universal pc headset interface ]

[ IC706 MKIIg microphone interface ]

[ ICOM microphone interface ]  

DIGITAL MODES INTERFACES

[ digital modes interface  version 1 ]

[ digital modes interface  version 2 ]

[ double digimodes interface & patchbox ]  

QRP RIGS

[ QRP CW with SW+20 ]

[ QRP PSK31 with PSK20 ]

RESTORATION PROJECTS

[ TURNER+3B restoration ]

[ TURNER+2 restoration ]   

 

 

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Copyright 2007 by IW7EHC all rights reserved