[Elecraft] 500Hz Filter Offset Question

[donovanf at starpower.net]

oops. The Elecraft 500 Hz 8 pole filter is discontinued... 


http://www.inrad.net/product.php?productid=316&cat=140 


73 
Frank 
W3LPL 

----- Original Message -----

From: "Mark Musick" <markmusick at outlook.com> 
To: "Rich" <rwnewbould at comcast.net>, donwilh at embarqmail.com, "Elecraft" <elecraft at mailman.qth.net> 
Sent: Tuesday, January 15, 2019 12:17:05 AM 
Subject: Re: [Elecraft] 500Hz Filter Offset Question 

INRAD has 500Hz 8 pole filters for the K3/K3S. 
I have one in the main receiver and one in the sub-receiver. 

Mark, WB9CIF 

-----Original Message----- 
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Rich 
Sent: Monday, January 14, 2019 23:56 
To: donwilh at embarqmail.com; Elecraft <elecraft at mailman.qth.net> 
Subject: Re: [Elecraft] 500Hz Filter Offset Question 

Thanks all. I did read the manual, but it would help if I had read the entire paragraph and not just one sentence. 

In this case they sent me all matching offsets, so they are all the same. 

I was surprised that they do not have 500hz 8 pole. 

Oh well, back to putting the radio back together 

Ric 

On 1/14/2019 18:42 PM, Don Wilhelm wrote: 
> Rich, 
> 
> Wrong - you must enter the offset frequency. 
> Related - what is true is that you do not need matched filters in the 
> main and the subRX for Diversity reception with the new synthesizers. 
> 
> There are plots on the Elecraft website showing the filter response. I 
> don't recall if the 500 Hz filters are included. 
> 
> 73, 
> Don W3FPR 
> 
> On 1/14/2019 5:30 PM, Rich wrote: 
>> 
>> So now that I have 5 pole filters, I seem to recall that entering the 
>> offset freq is not required any longer on the K3S, is that true? 
>> 
>> Also does a K3 upgraded with K3S features need the offset freq? 
>> 
>> I should mention that they are all matched. 
>> 
> 
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