The key being "if." They don't. (They show an attenuation effect, but no one has suggested or produced any actual evidence of a detuning effect).
I don't know you, sir, but I am happy someone on here understands the distinction.
🙂
With the iPhone 4 (generally, not only with a few of them) you can -depending on various factors including signal strength (simplified), signal pollution (signals near the band you're detuning the antenna to), and others- create a slightly less efficient, a dramatically less efficient or completely unsuitable, defunct antenna with the tip of your finger (literally).
That is the whole point here. I know GSM inside out, I built a variety of GSM antennas, used a variety of GSM RX/TX ICs, wrote a huge number of lines of code to interact with them from countless different embedded systems. I can code and decode PDUs in my head, so if I had a (correctly tuned
😛) antenna on my head, I'd probably CMSG this to every potential iPhone 4 customer that they're about to purchase a flawed product.
I am already having nightmares thinking about some local emergency doctor unwary of this
ISSUE using the iPhone 4 on duty.
Maybe I am just a grumpy old man who engineered for decades to create or invent stuff that that solidly worked, stuff that could be depended on. Nowadays products tend to be like people, both seem to be more hollow than ever.
For me,
form follows function, damn!
😡