Subject:BAND EXPANSION MODIFICATION FOR IC-02AT FOR SERIAL NUMBERS ABOVE 34000 BY LTC STEVE PETERS, CAP ------------------------------------------------------------------------ 1. Remove back from radio (5 screws) and bottom plate (4 screws). 2. Carefully remove radio chassis from front case by pulling out top of radio and lifting slightly (to remove battery contacts from bottom case). Be extremely careful of ribbon cable and heat sink compound on power amplifier module. 3. Remove diode D2 from matrix board. 4. Add diode D4 (any small diode 1N4148; 1SS211 5. The following is a schematic of the matrix board: ADD D4 REMOVE D2 I--+ --+-- --+-- + V D4 ID3 I ID2 I D1 I I I I I + + +---+ +---+ + + 6. Install radio chassis back into front cover. Leave back off temporarily. 7. Carefully apply power to radio and enter the lowest desired frequency. 8. Adjust slug through bottom hole on VCO corr for .5 VDC at VCO test point (just below VCO shield) at lowest desired operating frequency. 9. This completes the modification. A few words of caution: 1. The radio is not type accepted for use in the commercial band. 2. Make sure you reinstall the battery latch correctly on bottom of radio or battery will become permanently locked onto radio. 3. Tighten screws on bottom of radio snuggly. If they loosen while battery is connected you cannot remove the battery. (This has happened to any units and it would be prudent to periodically check these screws to assure their tightness.) ------------------------------------ *** Be careful not to transmit out-of-band, or accidentally operate on any non-amateur, unless you are authorized to do so. DO NOT JEOPARDIZE YOUR LICENSE! [EOF]  Amsterdam View Our Stats   CLICK FOR A FREE DOMAIN NAMES HTTP://WWW.YOURNAME.TK FOR YOUR OWN WEBSITE IF YOU CLICK HERE AND YOU CAN VOTE FOR OUR FREE WEBSITES IN THE TOP 100 LIST  WANT A TOP RANKING ? USE THE ULTIMATE SOFTWARE SUITE FOR WEB SITE PROMOTION  FreeWebSubmissions Submit Your Site To The Web's Top 50 Search Engines For Free THE ALEXA BANNER, THIS BANNER GIVES THE DALLY STATISTICS OF THIS FREE WEB SITE The World of Free Packet Radio Software Amsterdam The World Of Free Packet Radio Software Amsterdam The Netherlands |