Doug Private wrote:
Hello, the DTP41 is still useful and I am trying to add a transmission measurement light to a standard DTP41 but have had only limited success.
Hi, I'm not sure that there is any hope in what you are attempting. Even plugging a genuine DTP41T plate into a non-T instrument, doesn't turn it into a DTP41T (I just tried this). I would imagine there is some other difference, like different firmware, or the presence of factory calibration information for the transmission mode. Graeme Gill.