RE: Another Cancer Scare?

2008-08-06 Thread Dean Gerard (Medical Physics)
Is it really only milliseconds? When my phone is in my desk drawer, or jacket pocket on the back of my chair, I am aware that it is periodically active because of interference it generates on the speakers of my PC. These bursts of audible interference are brief - but measurable in seconds

RE: BS EN 61000-4-3:2006

2008-08-06 Thread Lothar Schmidt
The reason for the 1.8 factor is that you are calibrating with a CW signal. When you switch the modulation on in real testing the peak level for the amplifier will be in the range of 1.8 of the CW level. It’s just a pre-caution not to overdrive the amplifier. Best Regards Lothar Schmidt

RE: BS EN 61000-4-3:2006

2008-08-06 Thread Bob Richards
Lothar, Yes, you are correct. However, my point was that the higher level can cause issues as far as the 16 point uniformity data is concerned, and becomes irrelevant anyway since the final drive level will be different. Once the 16 point data has been used to calculate the required drive

RE: RF What-if (was: RE: Another Cancer Scare?)

2008-08-06 Thread 'Rich Nute'
Back in the old days -- say mid-50's or earlier, broadcast transmitters were required to be monitored full-time by a qualified engineer. High-power AM transmitters bombarded these guys with all kinds of stuff. Many of these old-timers reported effects on the brain, but I can't remember the

RE: RF What-if (was: RE: Another Cancer Scare?)

2008-08-06 Thread Hopkins, Michael J.
Not to mention those still working at facilities such as the Sackville, NB transmitter site or others like it --- VOA etc... In Sackville, I was amazed that I could park right below one of the big wire arrays where the control room is located. Multiple transmitters running most of the time between