Direct soundcard input & large VLF aerials

[andrew....@googlemail.com]

Following on from my post yesterday, I have now set this new SID monitor up on a mini-PC of its own for long-term monitoring – I am amazed at how strong the signals are with this arrangement – which I can only put down to the larger 134cm cross used for the aerial – the wire used is the same as on my other 70cm aerials = 150m of 22 SWG enamelled copper wire. I have added on this current arrangement 10 uF capacitor on one arm going into the soundcard.

 

Block diagram:

 

134cm VLF aerial à capacitor on one arm à USB 96 kHz sound card à mini PC/Spectrum Lab.

 

First Light:

 

https://www.astronomy.me.uk/setting-up-lro-134cm-vlf-aerial-with-direct-input-into-usb-sound-card-except-for-10-uf-capacitor-on-one-arm-of-input-on-lro-pc-10-mini-pc-with-spectrum-lab-software-for-continuous-monitoring-startin

 

Andy