The iPhone 4's radio woes are well-documented. The most recent tests,, show dramatic radio performance issues when a part of the external antenna is gripped.
This week on the Roundtable, we delve into the electronic and radio engineering issues affecting the iPhone 4's antennas, as well as other phones. Our guests are CNET's Maggie Reardon, author of "Apple's iPhone 4: Thoroughly Reviewed."," and AnandTech's Brian Klug, who tested the iPhone for that site and co-wrote
If you want to really understand why the iPhone behaves the way it does, watch or listen to this episode of Reporters' Roundtable.
Show notes and talking points
Why does touching an antenna matter?
Brian, run down the measurements you did for Anandtech
What does Apple's fix actually do?.
Can you fix the problem with nail polish?
Matters more in low coverage areas, why?
What's the deal with other phones?
History of how-to-hold-the-phone warnings?
How could this not show up in field tests?
Does holding it wrong ever cause the signals to improve?
What is the solution?
Let's talk about networks. You can have five bars and still get dropped calls or slow data. How?
Questions from the chat room:
rygavs: Are the radios on the iPhones that have been already sold easily repairable without a bumper? Could Genius Bar staff just coat it with something?
CurtisB: Is there a difference in reception between Edge and 3G?
TBolt: I'd be curious to know if the current iPhone would fail on Verizon's network just as much as it does on AT&T's.
Email comments to email@example.com, and get all the show notes as well as replays and downloads of the podcast on the blog. For early news about the next episode of Reporters' Roundtable, follow Rafe on Twitter.