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| Joined: | Jun 26th, 2009 |
| Location: | Heart Of Arizona Indian Country, Arizona USA |
| Posts: | 662 |
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Hello Mike,
First off…that 17Khz frequency you observed in your other posting could be from a couple of different things.
Your ultrasonic pest repeller in the backyard could be going bad. Do you recall seeing the 17Khz frequency in the recording you did for your Youtube video?
Someone in your area could have the 17.4Khz Mosquito (Youth Note) ring tone or alarm.
Depending on weather conditions, there could have been a spike in a radio station. Desi Radio in Southall is around 16Khz as well as BBC Radio Kent and others, assuming you live in the London area.
I have no opinion on if you should re-use the crystal coil or not.
I know you have DC7 but what are you using to listen to your clips....laptop or desktop? Headphones, earbuds or speakers?
Take Care,
Ron
Last edited on Mar 29th, 2011 06:47 AM by ArizonaEvp