Dear,
We have been discussing the ORION III within our contest team and
clubstation (2x 565+1x 566) for some time now.
We would like to express our vision, but divided it in separate main
areas so others can chime in.
Technical proposed changes for the ORION III:
- Forget about competition and their full SDR-knob-less-boxes/flashy
gameboy interfaces; do what Tentec does best !
- State of the art low phase noise (both close-in and >50Khz away)
- Focus on minimal crossover distortion at input DSP section
- Restrict group delay at analog crystal-filtered IF stage(s) to
absolute minimum
- User selectable DSP curves sharp vs the current soft analog shapes
- At least KEEP the current analog DSP shape; I have measured proof of
its advantage against competition
- AGC; keep the current off/slow/med/fast/prog options, but next to
adjustable also offer pre-defined fixed settings for the' easy listening
user'
- Add 'frontend saver' relay grounding option at RX input. Selectable
from menu
- Weak signal noise reduction; something like the NR1 of the TS590
which does a great job on 144 and 50Mhz
- Weak signal noise reduction tailored for crowded bands like in contesting
- Weak signal noise reduction for rough (atmospheric) background noise
like 160m
- Transverter interface connections + various IF (14 and 28) +
programmable freq. offset + VHF freq on display
- 2nd RX optional but f 100% similar
- Add 2nd RX input for RX2, selectable from menu
- IF output, separate for both receivers
- Clean TX (phase noise)
- Build in PSU, but only if superb performance + absolutely noise/birdy-free
- State of the art low noise and low THD AF output section
- check some of the current and past designers like PA3HKE front
end/mixer/IF filtering, AOR7070
- Focus on receiver performance by listening
- Use realtime test environments, use modulated testsignals. (forget
about meaningless static-benchtest-specs like MDS and IP3)
- We want to hear 'deeper in the bandnoise' (like listening to a K2,
although there's no other rig which comes that close to the K2)
- We want to make more and difficult, but new QSO's
- Make it sound even more great than it already does
Note: some of the above are surely at the limit of what might be
possible(or beyond).
73 Mark, PA5MW
565 since 2004
566 since 2013
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