Hello all,
New to the forums, have been reading for a while though. I have a question related to an RF signal generator I have recently acquired. Using a calibrated frequency counter the output of said generator is actually quite accurate and pretty stable. My question comes with the output voltage. I see that most of the service manuals for most common radios call for a 1uv or even .5uv signal when it comes to receiver alignment. This particular generator seems to only go down to about 20uv or so. The manual states that a 50-200 ohm resister should be used in series if you are injecting the signal directly into an antenna jack. This does not seem to affect the output. Is there something different I should do? Just FYI I have not done anything to any radios as of yet. I am simply trying to sort out the equipment before I start messing with some old CBs that I have laying around. I would like to just teach myself how to align and tune my own radios as a way to further my interest in the hobby. I currently have an oscilloscope, frequency counter, a multitude of digital and analog multimeters, and the above mentioned rf generator with a built in 1khz af generator. The model of the generator is GW Instek GRG-450B. Any information would be appreciated. I would like to learn as much as I can. Thanks.
New to the forums, have been reading for a while though. I have a question related to an RF signal generator I have recently acquired. Using a calibrated frequency counter the output of said generator is actually quite accurate and pretty stable. My question comes with the output voltage. I see that most of the service manuals for most common radios call for a 1uv or even .5uv signal when it comes to receiver alignment. This particular generator seems to only go down to about 20uv or so. The manual states that a 50-200 ohm resister should be used in series if you are injecting the signal directly into an antenna jack. This does not seem to affect the output. Is there something different I should do? Just FYI I have not done anything to any radios as of yet. I am simply trying to sort out the equipment before I start messing with some old CBs that I have laying around. I would like to just teach myself how to align and tune my own radios as a way to further my interest in the hobby. I currently have an oscilloscope, frequency counter, a multitude of digital and analog multimeters, and the above mentioned rf generator with a built in 1khz af generator. The model of the generator is GW Instek GRG-450B. Any information would be appreciated. I would like to learn as much as I can. Thanks.