Not exactly. I would say that when conditions are good CPU 0.1 and DSP 0.2 are about equal to CPU 1.0 and DSP 1.0 for me. I don't think I have had enough time with "good" conditions to say the new firmware is better. Right now I'm using the original firmware and ieverything is good for me. I'll try some further experimenting this morning.cpunut said:I think you have good notes.
What is interesting is that you are getting variable results depending on time. Signals do change by time of day and even time of year (leaves, no leaves). In any case it seems that when conditions are good that you prefer CPU 0.1 and DSP 0.2?
EDIT - 1-Changed to CPU 0.1 left DSP at 1.0
The decode rate was as good or better on weak site (86-98)and as good or better on the two stronger sites(86-99). Listening test is good. CPU 0.1 seems good, maybe a little better than CPU 1.0 in this test.
2-Next changed from DSP 1.0 to DSP 0.2, with CPU 0.1.
The decode rate for the weak site went to highly variable (54-92). The low decode rates were seen, but not frequently, thus in a listening test problems would not be too obvious. I did observe several instances of the scanner locking on to the transmission but the audio was delayed by several seconds when compared with the 996. The two stronger sites also had more variable decode rates(80-94), but the low end was not as bad as the weaker site. Right now in listening tests things seem fine. I am using an outside 700 MHz tuned antenna with an Electroline unity gain amp to split the signal to my PSR 500 and 996T for the listening comparisons.
CONCLUSIONS:
1 - DSP 0.2 causes the problems I am observing. CPU 0.1, as far as decode rates go, maybe even improves things a little.
2 - DSP 0.2 causes the decode rate to become more variable and inconsistent, especially on weaker signals. It seems to cause a little more variability on stronger signals too. I can see how, as the decode rate jumps into the low reading more frequently, the reception problems observed while listening will obviously get worse too.
EDIT #2 - About 90 minutes after previous readings. Decode rate on weak site now 24-78 and missing some transmissions entirely that the 996 receives. Stronger sites not much change in decode; receiving OK.
EDIT #3 - Weak site is now showing decodes from 25-50. T indicator is intermittent. Missing some transmissions, but actually getting more than I would have thought. Stronger sites are decoding 78-98 and constant T indicator.
Switched back to DSP 1.0 with CPU 0.1. Now the weak site is 88-98 decode and constant T. Other sites are also better than before (88-98). I now am getting all transmissions that the 996 gets.
Dave
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