[TenTec] serious filter problem with Orion II

[Tõnno Vähk]

Thanks to K7HP and W4ZV for the taps hint! 

Changing the taps value from 169 to 199 cured the oscillation problem immidiately! Mine was set to 169 as default for some reason. Reading manual now I can't also see any reason for not keeping this at the maximum 199.

73
Tonno
ES5TV

-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com] On Behalf Of Tõnno Vähk
Sent: Saturday, January 27, 2007 7:27 PM
To: Discussion of Ten-Tec Equipment
Subject: [TenTec] serious filter problem with Orion II

Hi,

that my 1st post here as a fresh OII owner. I am in the middle of the first serious contest cqww160.

Already in the beginning of the contest OII developed a following problem: Whenever I play around with BW control and go narrower than ca 200hz filters seem to completely mess up and I start to here the band extremely wide, getting tens of signals and strange noises like hash and cracks on top of that. Basically as if I was hearing the whole band. I have to do restart to get rid of this. This has happened a few times already not even changing the BW but working at ca 300hz. IT comes like a wave taking about 5 sec maybe for the filters to completely lose themselves. I have had to do ca 10 restarts and I try to avoid going narrower or BW at all.

Has anyone seen anything like that? Running 2.037j here and NR or AGC settings, etc do not seem to matter.

73
Tonno
ES5TV

p.s. having really hard time getting used to OII as it does not seem yet in any way superior to my old trustworthy 95 vintage MP with all the mods and filters. MP with INRAD roofing filter does not seem to be worse in any way but is more quiet and signals are easier to copy in pileup. OII NR causes distortion in signals and does not seem to improve S/N ratio, CW sidetone is ringing and the volume seems to be not adjustable (?), S-meter shows 59+60 for every decently strong signal:) I have gone through the 1 year of list archives about OII and tried to take all advice into account. Hopefully will be able to get used to it finally.
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