"tiny signal" is correct and usable in written English.
It can be used to describe a very small or faint signal or sign of something. Example: Despite the crowded and noisy room, she managed to pick up a tiny signal of his voice calling out her name.
Deep in my pocket, my transponder is still emitting its tiny signal.
The fate of the Beagle 2 Mars lander remained unknown on Friday after a powerful radio telescope failed overnight to detect its tiny signal while additional sensors were readied to join the search in coming days, mission officials said.
This required detectors of unprecedented sensitivity; to confidently detect the tiny signal of a broken nucleus, all other extraneous radioactivity has to be reduced to the lowest possible level, and measured precisely.
A2 British Mars Lander Missing The fate of the British Beagle 2 Mars lander remained unknown after a powerful radio telescope failed to detect its tiny signal while additional sensors were readied to join the search in coming days.
It was a small moment, inconsequential perhaps, yet also revealing — one more tiny signal of the shifting power in Washington that will culminate with Mr. Obama's inauguration in 12 days.
All that before your fob or fridge can transmit a tiny signal.
A couple of tiny signals from the week that shouldn't be ignored.
As they move, responding to whatever music is being played, tiny signals from the piezo foil are sent to a computer.
When printed, the photograph may look no different at first glance, but in fact the pixels have been adjusted to contain tiny signals that can be picked up by a digital camera that includes Digimarc software.
So sensitive are the devices, and what they are listening for so faint, that even tiny signals nearby can be disruptive: a badly fitted microwave or a faulty electric blanket.
There are people in whose company, because of a million tiny signals with no words spoken, we quickly feel at ease, people whose attitude we quickly sense is authentic, and not fabricated; and I would submit that our nation as a whole has directed this biological, non-rational intuition at David Attenborough, and he has passed the test.
