Morning, thank you for your suggestion and I did try that and was having some problems which may have been on how I was hooking things up. Here’s the online tone generator I found.
https://onlinetonegenerator.com/I was running it from my iPad through a set of headphones which I had attached to the radio microphone and so things were a little bit flaky in doing that. I think I might try using a phone jack that has open wires on the end and attached them to the microphone input, but I wanna make sure I don’t do anything to damage the iPad in the process. I’m trying to calibrate. The ALC function on the radio and I hope that this method might work. Originally, I found that the ALC adjusting potential was dirty and so I cleaned it with a drop of DeOxit which worked well. I want to check and make sure there’s no potential on the microphone input plug to the microphone input ground connector that might cause either damage to the iPad or pull the signal level that I need either up or down.
Again, thanks for your suggestion.
Sent from my iPad
How about using the output of a sound card in a computer? MIght have to calibrate the signal with an o'scope to get the right amplitude. I"ve seen software for generating all sorts of audio test signals.
-Farren
The Computer Shed
I.T. Services for Business, Home, & Church
785.747.8100 Voice
785.236.8850 Text