AmazonBasics Hochgeschwindigkeits-HD...

As i mentioned, i had some trouble with the circuit about - too much power on a too small pcb - so it starts to swing.

Meanwhile, i was inspired by Chris´ Wavebubble [EMule] file to build my own Mini-Device.

Same circuit as above, but smaller ATtiny and just used an ERA-5 for ampfiing stage. Low power -> easy and reliable to build!

Technical Data:
Band: GSM900 only (dualband is still difficult (vco...) - ERA-5 would be suitable for GSM1800, too )
Range: up to 10m (enough to be not disturbed at the street cafe...)
Current drain: 115 mA (Battery life: 3-4 hours /accumulator life: 1-2 hours)

A cigarette packet can be a good camouflage.


@Chris:
Hope that abi doesn´t drag you down too much... Good luck further.
_____________________

"Ich liebe es, wenn ein (Schalt-)Plan funktioniert."

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