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Setting Filter Gain in KRX3

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Roy Morris-6

Setting Filter Gain in KRX3

I have installed the KFL3A-500 filter in slot #5 in both receivers. When I set main receiver FL5 GN to 6 dB and go to B SET, the gain sounds about the same in the KRX3 as it does in the main receiver. Since the dB setting cannot be seen in B SETdisplay, how do you know the gain settings are the same? When the main receiver filter bandwidth, offset and gain are set in CONFIG, does the corresponding KRX3 filter automatically get set to the same parameters regardless of filter slot used? Maybe all this can be determined in K3 UTILITY. Any comments would be appreciated. Roy Morris W4WFB

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Dick Dievendorff

RE: Setting Filter Gain in KRX3

You can use the K3 Utility filter configuration tool to verify the filter settings for both main and sub receiver. From the K3 Utility’s “Configuration” tab, click “Edit Crystal Filters” and click on the Main / Sub Receiver radio button at the bottom left of the dialog.

The main receiver filter settings are distinct from the sub receiver filter settings. Setting the main receiver’s filters does not set the configuration of the sub receiver filters.

I loaned my K3 to K7RI to get ready for Sweepstakes or I’d try to describe how to view and set the sub receiver filter configuration from the K3’s front panel. I believe it can be done, I just can’t verify the procedure.

Dick, K6KR

From: [hidden email] [mailto:[hidden email]] On Behalf Of Roy Morris
Sent: Tuesday, November 11, 2008 5:47 PM
To: [hidden email]
Subject: [Elecraft] [K3] Setting Filter Gain in KRX3

Joe Subich, W4TV-3

RE: Setting Filter Gain in KRX3

> I loaned my K3 to K7RI to get ready for Sweepstakes or I'd
> try to describe how to view and set the sub receiver filter
> configuration from the K3's front panel. I believe it can be
> done, I just can't verify the procedure.

Enter the CONFIG menu ...
Select FLx GN
Press SUB (display will change to SUB # db)
Adjust gain as needed
Press SUB (display will change to rF # db)

SUB designates KRX3 settings, rF designates KRX3 settings

73,

... Joe, W4TV

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Dick
> Dievendorff
> Sent: Tuesday, November 11, 2008 9:18 PM
> To: 'Roy Morris'; [hidden email]
> Subject: RE: [Elecraft] [K3] Setting Filter Gain in KRX3
>
>
> You can use the K3 Utility filter configuration tool to
> verify the filter settings for both main and sub receiver.
> From the K3 Utility's "Configuration" tab, click "Edit
> Crystal Filters" and click on the Main / Sub Receiver radio
> button at the bottom left of the dialog.
>
> The main receiver filter settings are distinct from the sub
> receiver filter settings. Setting the main receiver's
> filters does not set the configuration of the sub receiver filters.
>
> I loaned my K3 to K7RI to get ready for Sweepstakes or I'd
> try to describe how to view and set the sub receiver filter
> configuration from the K3's front panel. I believe it can be
> done, I just can't verify the procedure.
>
> Dick, K6KR
>
>
>
>
>
>
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Roy Morris
> Sent: Tuesday, November 11, 2008 5:47 PM
> To: [hidden email]
> Subject: [Elecraft] [K3] Setting Filter Gain in KRX3
>
> I have installed the KFL3A-500 filter in slot #5 in both
> receivers. When I set main receiver FL5 GN to 6 dB and go to
> B SET, the gain sounds about the same in the KRX3 as it does
> in the main receiver. Since the dB setting cannot be seen in
> B SETdisplay, how do you know the gain settings are the same?
> When the main receiver filter bandwidth, offset and gain are
> set in CONFIG, does the corresponding KRX3 filter
> automatically get set to the same parameters regardless of
> filter slot used? Maybe all this can be determined in K3
> UTILITY. Any comments would be appreciated. Roy Morris W4WFB
>

Jim-168

Elecraft] Any for sale?

Anyone having & wanting to sell any of the below listed K-3 roofing filters
please reply privately to me off the list with your price.

Thanks de KE4WY Jim

KFL3A-400 400 Hz, narrow 8-pole roofing filter
KFL3A-500 500 Hz, narrow 5-pole roofing filter
KFL3A-2.1K 2.1 kHz, 8-pole roofing filter
KFL3A-1.8K 1.8 kHz, 8-pole roofing filter

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Jim-168

RE: Elecraft] Any for sale?

In reply to this post by Joe Subich, W4TV-3