[TenTec] Wide roofing filter for the RX-366?

[Bob McGraw - K4TAX]

While roofing filters are indeed nice and serve a really nice function, I 
truly believe  the lack of understanding as to what they do and how the 
perform and when they are needed is in short supply.    I  found that the 
"authority" Rob Sherwood has a very nice presentation on his website where 
he discusses the advantage and importance of roofing filters.

My general take is:  If one intends to operate with 5 to 10 active stations 
in an area the size of a football field on an event such as Field Day,  then 
they are absolutely necessary.  Otherwise, if you live in an area 5 to 10 
miles from town and the nearest ham does not operate on the same band the 
same time as you, then they aren't necessary but, certainly nice to have 
available.

Just remember, the selectivity is developed by the DSP system.

73
Bob, K4TAX




----- Original Message ----- 
From: "Kim Elmore" <cw_de_n5op at sbcglobal.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Thursday, May 01, 2014 8:16 PM
Subject: Re: [TenTec] Wide roofing filter for the RX-366?


> While filters are expensive, they can be swapped out without a lot of 
> trouble. That said, I chose a wide filter of 6 kHz, then the 2.4 kHz 
> standard filter and finally a 500 Hz filter for the narrowest. In my 
> environment, I won't have to deal with any strong (next door) signals in a 
> 500 Hz passband. Whenever I take the rig to, say, FD, only the main rx is 
> much used and it has the 300 Hz roofing filter, 600 Hz, 1.0 kHz, 1.8 kHz, 
> 2.4 kHz, 6 kHz and 20 kHz filters.
>
> I can't see the point in having a 2.7 kHz, 2.4 kHz, and 500/600 Hz filters 
> because there's not enough difference in the 2.7 kHz and 2.4. Perhaps a 
> the standard 2.4 kHz, 1 kHz and 500/600 Hz filter would be best if you 
> have no interest in AM.
>
> Kim N5OP
>
>
> On 4/30/2014 9:15 PM, Carl Gansen wrote:
>> I am curious about what members of the list are using for their wide
>> roofing filter
>> in the RX-366. At this time, with CW as my main interest, I have a 600Hz
>> and a
>> 300Hz in place in mine.
>>
>> I have little to no interest in AM but I do listen in on digital modes 
>> with
>> FlDigi.
>>
>> Can anybody offer some thoughts on the filter (brand & bandwidth) that 
>> they
>> chose
>> and the reasoning behind that choice?
>>
>
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