ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º * MODBOX FILE SERVER * GM7DUG PBBS * MacPAC Data Group * SCOTLAND * º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ Kenwood TH79 Dual Bander Modification and Feature Guide r1.5 9/13/94 ======================================================================= Clayton Wagar, KD4IDN 920 West Crawford Street #7 Dalton, GA 30720 Here is a compiled list of modifications and features I've found for the Kenwood TH79 Dual Band HT. Thanks to the following for their contributions to this document: Mike Musick, N0QBF Cole Cunningham, AA7RD Duane Voth, KC5BGV Chuck Scott, N8DNX Having had many other radios in the past, and certain to have many in the future, I understand the anticipation of Amateur Radio operators to find modifications to their equipment. I started this document because I want to see _quality_ information circulated as quickly as possible, in order to save a lot of time and effort for others. If you have any other comments, mods, or information you would like to see included in this document in the future, please send them to: Clayton Wagar KD4IDN yensid1@aol.com Outstanding questions at the time this document was released: * Rumor of a keypad modification to the radio for "Wide band" TX, RX. If you know of this mod, please write to me, even if you wish it not to be published. This would save a number of poor radios from useless torture! Hope you find all of this information useful. Again, please send corrections or additions to yensid1@aol.com 73 de Clayton KD4IDN +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Contents of This Document +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ I. Disclaimer and other foolery II. Brief Description of the Kenwood TH79A Dual Band Handheld Radio III. MARS/CAP Modification IV. Extended TX/RX Modification ('Beyond MARS') V. Remote Base Operation VI. Post Modification Specification Chart VII. Cross Band Repeat VIII. Other Stuff +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ I. Disclaimer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Well, don't you get sick of this stuff? I know, I know. However, I must say that I cannot and will not be responsible for anything that might happen to your radio, your person, your dog, or other operators you might talk to with your th79. In addition, if you decide that, with your newly modified HT, you just absolutely must cause unlawful interference with another ham or another radio service, I won't pay your NAL. Really. Oh, and while we're at it... The extended RX/TX modifications may require you to solder or desolder really, really small components. If you want to know how small, look at the tip of an average ball point pen. Smaller than that. It takes about 1/2 of a second to wipe out several components as well as fry the board inside the 79. Please be careful. ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º * Downloaded from the MODBOX GM7DUG's File Server SCOTLAND * º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ