Helmut How well does your power meter respond to high peak to average signals, IE faithfully measuring peak and PEP ? I've been involved in this with DRM and DVB.
something to watch, anyway. Maybe use a TRUPWR (R) device like the AD8362 to measure it. 73 On 23/09/2015 5:58 AM, wully wrote: > Hi all > > Helmut, dc6ny, and I have done some more tests yesterday. The band > starts opening again (wonderful: we always want to test 700B). > As stated earlier, we never had any problem with the 700B-tuning: cohpsk > locks quicker than the fdmdv, at least, this is the impression we get > from our experiences. Yesterday, I started to reduce my power (measured > by an LP-100A just before the antenna coupler) when txing in 700B. > Helmut detected the signal and I reported about my power seting: Full > drive started with 58Watts peak. Then I reduced the power to 100mW peak > (reading the quickly changing "average" of LP-100A). This was the last > setting, that I could read on the LP-100A, my relative powerseting was > at 7 out of 256. Then I reduced to 6, then to 5, to 4, to 3, to 2. After > this experiment, Helmut reported, that he could fully decode the signal > at 6, but at 5 only about 50% and lower no decoding anymore. We > estimated, that setting 6 was about 50 mWatt. ------------------------------------------------------------------------------ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
