rishi_azzuris
Junior Member level 3
pls help
hi everybody,
i'm havin trouble with this circuit. can somebody explain to me where is the power supply suppose to be for this circuit. there is one port called key +28v and another port which states 28v. which one is the correct positive power supply port. then can i know where is the rf in and rf out signal port is? next, i want to use a osiloscope to measure the rf to be 144mhz. how do i do it? thank you very much. the link for the circuit is below.
hi everybody,
i'm havin trouble with this circuit. can somebody explain to me where is the power supply suppose to be for this circuit. there is one port called key +28v and another port which states 28v. which one is the correct positive power supply port. then can i know where is the rf in and rf out signal port is? next, i want to use a osiloscope to measure the rf to be 144mhz. how do i do it? thank you very much. the link for the circuit is below.