Modifications for the ICOM - RogerK

BOOT:Attenuator protecs strong signals from distorting (20 dB); FUNC + 0Partial:MODE + POWER --> DIAL --> ENT (no changes in memory)All:CLR + POWER --> DIAL --> ENT73s de Milton Teuner - PY3PSI SWL: ZZ3-0149py3psi@gw.ab6qv.ampr.org.MODIFICATION.NETThis modification is read 1916 times.top of page27-11-2001(IC-R10) ICOM R10 Receiver Modification to Provide S-Meter OutputAuthor: Doppler Systems Inc.April 21, 2001A Technical Application Note from Doppler Systems Inc.AcknowledgementsThis application note was submitted by Lt. J.G. Peter Arts from USCG Boston and was based on instructions originally receivedfrom Phil Godbold of Adur Communications in England.IntroductionThe purpose of this application note is to describe the modification of an ICOM IC-R10 receiver to provide received signalstrength indication (RSSI) through the ‘ring’ terminal of the external speaker jack for use with various Doppler radio directionfinders. The modification consists of soldering a resistor between two internal contacts on the radio IC board.Items Required●●●●●●●ICOM IC-R10 Communications ReceiverRadio Shack 2711321 1Kohm (¼ watt) ResistorRadio Shack 274375B Stereo Signal Splitter Y Adapter PlugInsulation Spray or Small Heat ShrinkSmall Philips ScrewdriverSoldering Iron with Fine NibHeat Sink ClampCase Disassembly InstructionsNote - There are three different size screws used to connect the R10 Receiver. When removing screws, keep the one short, onemedium, and five long screws separate.1. Manually remove battery cover.