[MCARC] Audio generator

[Michael Philbrick]

Don't know the mv rating of that app I mentioned by tones from 10 hz to 25K
hz. Suppose you could put a DMM across the tip and sleeve of audio
connector to measure the mv's being sent out using the slider in app.

Michael

On Fri, Mar 28, 2025 at 9:52 AM Michael Philbrick <philbrick52 at gmail.com>
wrote:

> Don't want to take a chance with your iPad; do you have an old phone
> sitting around? Maybe your an android guy, don't remember. But, if iphone,
> there's a tone generator app available that I was using about 10 years ago
> in the professional environment and it seems to still be available; at
> least I just checked and still on my current iphone. It has a volume slider
> which might help with your signal level; don't know.
>
> App's name:  Tone generator      But I see there are a multitude of apps
> on the iphone app store.
> Michael
>
> On Fri, Mar 28, 2025 at 7:40 AM Mike Stillwell <fixmyhouse1 at gmail.com>
> wrote:
>
>> 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/
>> <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
>>
>> On Mar 27, 2025, at 21:31, Farren Constable <farren at computershed.com>
>> wrote:
>>
>> 
>> 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
>>
>>
>> On Thu, Mar 27, 2025 at 8:33 PM Mike Stillwell <gwtouring at bluevalley.net>
>> wrote:
>>
>>> I’m needing to borrow an audio generator to test the input on a SSB
>>> radio. I need a low signal of five mill volts as a starting point and
>>> obviously needs to be variable. Does anyone have one that I could borrow
>>> for a short period of time?
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>
>
> --
> *Michael Philbrick*
> Odd Job Technician
> Retired Guys LLC (fictional)
> *Cousin to my genealogy relativesNØUDF to hams*
>
> *Retired science/CTE educator*
> Seneca, KS
> mdp.seneca at gmail.com
> https://www.facebook.com/michael.philbrick/
> 785-294-2719
>
>

-- 
*Michael Philbrick*
Odd Job Technician
Retired Guys LLC (fictional)
*Cousin to my genealogy relativesNØUDF to hams*

*Retired science/CTE educator*
Seneca, KS
mdp.seneca at gmail.com
https://www.facebook.com/michael.philbrick/
785-294-2719
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