Tag: Icom

Arduino and Touch Screen Based LDMOS SSPA Contoller

Code available here: https://github.com/9H1LO/Arduino-LDMOS-SSPA-Controller

Icom IC-7300 Over Voltage Repair

Parts of this repair could also be valid if you reversed polarity to the radio, though the survival for reverse polarity should be better as a diode (marked C further down) should just blow the fuses on your DC cable. Now to the over-voltage bit…. A linear power supply without a crowbar protection circuit is …

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Icom IC-7300 Clock Repair

The Icom IC-7300 has an internal rechargeable battery to retain the running of the Real Time Clock – RTC. The battery charges when connected to your power supply, however drains deeply when left un-powered for a while. The issue seems to be that this Lithium Ion battery has a limited number of deep cycles and …

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