[TenTec] #217 Filter

[Duane A Calvin]

Actually, while the numbers may say the 500 Hz filter with its extra
preamp "causes problems," at my QTH it has helped a lot, especially
during RTTY and CW contests.  Now, I don't have stacked monobanders, and
in fact, have fairly puny omnidirectional antennas, so perhaps my
conditions don't raise the problems that the measurements show.  But I've
been very happy I've had the 500 Hz filter in the Orion to switch in on
occasion.  It has made a difference here.  I may try to locate a 250 Hz
filter as well because I remember what miracles it performed in my Omni
VI+ during noisy conditions.  (I also have the Inrad 600 Hz 4-pole in the
1KHz filter slot - yes, there is a positive, discernable difference when
the 500 Hz 6 pole gets switched in.)  For whatever it's worth.

        73,  Duane


On Sun, 23 Oct 2005 10:54:47 -0400 "John L Merrill"
<jmerrill1 at adelphia.net> writes:
> The best thing you can do for your Orion is to buy the INRAD 762 
> filter and
> put it in place of the 1000hz stock one. That's really all you need 
> and the
> dsp filters do the rest. And if you are not too picky the 1000hz 
> filter is
> superb on it's own along with the dsp filtering. I don't see any 
> advantage
> to getting a 500hz filter that actually degrades IMD according to 
> tests by
> W8JI and Sherwood Engineering.
> 
> John N1JM 
> 
> -----Original Message-----
> From: tentec-bounces at contesting.com 
> [mailto:tentec-bounces at contesting.com]
> On Behalf Of Ralph Matheny
> Sent: Sunday, October 23, 2005 10:18 AM
> To: tentec at contesting.com
> Subject: [TenTec] #217 Filter
> 
> I know there were a bunch of these listed a while back, and then 
> sold...
> but at that time I wasn't sure what I was going to do.  Now I am 
> looking for
> a 217 filter for my Orion, or perhaps an Inrad filter of similar 
> bw.
> Anything out there for sale???  mathenyr at marietta.edu.
> 
> Thanks.
> 
> Ralph Matheny
> K8RYU
> 207 Gibbons Place
> Marietta Ohio  45750
> 
> 
> 
> 
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--------------------------------------
Duane Calvin, AC5AA
Austin, Texas

http://home.austin.rr.com/ac5aa