Kenwood TKR-751 Modification Information
Also see for TKR-750: Brochure & specsService manualService manualFunction referenceService manual
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5 Modification Information (MOD) Version: 1.02 USA2 MODIFICATION OF THE ANTENNAThis section describes how to modify the antenna toconnect it to the antenna connector for transmission andreception located on the TKR-750/850/751/851.It allows to use as one antenna base by sharing anexternal antenna connector for both transmitting andreceiving.You must turn the power OFF before antennamodification.Follow the procedures below to modify the antenna.1. Remove the rear side top panel.Remove 6 screws (N33-3006-45, 3 mm diameter,black) and pull the panel up.2. Move location of C92 and C160 on the Final unit (B/2)for TK750/751.Move location of C81 and C160 on the Final unit (B/2)for TK850/851.3. Remove the front side top panel.Remove 6 screws (N33-3006-45, 3 mm diameter,black) and pull the panel up.4. Remove the antenna cable.4-1. Remove the receive cable from the CN18 ofthe TX-RX unit (A/2).4-2. Remove 2 screws (N33-2606-46, 2.6 mmdiameter, gold) on the BNC connector fixed to therear panel and pull the ANTENNA CABLEbackward.5. Cut the coaxial cable of the ANTENNA CABLE at theBNC connector side and remove the insulated part toperform soldering on the board.6. Connect the ANTENNA CABLE to the board.6-1. Solder the cut surface of the coaxial cablecenter pin to “RX” and the shield of cable to “E”.CN18 |
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