Hi Folks, I'm considering a new rig to replace my Mark V. I live in an extremely noisy environment and have found the noise reduction capabilities of the Mark V lacking. I've used the MFJ noise reduc
You will need to get an original Orion and run an old version of the software 1.373b5 in order to get decent NR out of the DSP. This is a sore point for many Orion owners. k4ia Craig "Buck" Frederick
Do you mean noise reduction or noise blanking? If it's the kind of power line noise resulting from arcing that you need to defeat, then the hardware noise blanker (NB) may prove effective for you. It
The Orion's are quite good since they have both a hardware and software noise blanker. Every kind of noise is different, but I have been very impressed with the abilities of the two separate systems.
It depends. Do you need a blanker, or DSP noise reduction? Or both? Both work well (although there are different opinions on this). Frankly, the only way to know for sure is to try it. The good thing
I have And Orion II. The hardware noise blanker works nicely to eliminae pulse type noise ( TV's, Washers, Power Line etc). The DSP NR is not what it should be AND WAS.... are you listening TT. I hop
My two centalvo's... I find the NR on the Orion V2.059 to work very well. It does an effective job of acting like a sort of squelch for SSB and I like the fact that there aren't alot of artifacts in
Tried responding to the original query before but used the wrong email address and 'fraid it got stuck somewhere for review. Certainly agree that hardware NB works very well. Takes out power line noi
A "trick" under uncrowded band conditions that sometimes makes the DSP NB very effective is to force the main rx roofing filters to 6 or 15 Khz - then try the DSP NB. I stumbled into this one evening
interesting idea _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
I remember a thread a long time ago that recommended not using the narrow roofing filters unless it was absolutely necessary. Something about the narrow filters degrading some performance. Don't know
That's been discussed here before. Not unique at all to the Orion. When many people were modifying the 1st IF filters in the Darake R-4C, this effect reared its ugly head. Too narrow a filter there
The hardware NB on the Orion (and I would assume on the Orion II) works wonders on my power line noise. YMMV. The DSP NB is quite effective against the OTH radar. The NR, on the other hand, is not he
Believe the issue was that installing the 500 or 250hz filters also enabled an additional amp which degraded performance. That is why the InRad 600hz filter was installed in the 1000hz slot. I know t
I'm not the one to ask....so consult the archives. As I remember there is a strong interaction with other settings....I think it was AGC hang or something, that drastically messed up the NR if these
Gary (AA2IZ) said: "I'm not the one to ask....so consult the archives. As I remember there is a strong interaction with other settings....I think it was AGC hang or something, that drastically messed
I wish I could be more directly helpful by remembering the exact reference, but unfortunately it eludes me just now. The only part I remember clearly is that when the newer firmware releases came out
It is written up in the manual in the section about weak signal. No point in having a narrow roof if there are no signals pumping the AGC. Very narrow roofing filters have loss. Ken _________________
QUOTE ""All-new suite of ORION II-specific roofing filters is arranged in one, single bank to allow user to select the absolute ideal roofing filter for mode, band conditions, and personal preferenc
You have it exactly. Apparently the preamp at the 500Hz and 250hz reduces the dynamic range. Read the ARRL review of the ORION. MArk _______________________________________________ TenTec mailing lis