[Elecraft] K3 Has anyone compiled a macro for 630 Meter operation

Edward R Cole kl7uw at acsalaska.net
Thu Dec 7 19:22:55 EST 2017


You probably could benefit from a BC band reject filter.  I bought 
one a few years ago anticipating station on 550-KHz in Anchorage 
might inpack my 600m Rx on 510-KHz.  I bought the Clifton Labs Z10020 
Medium Wave Broadcast Band Reject Filter (540-1700 KHz).
https://www.dxengineering.com/techarticles/dxepressreleases/dx-engineering-acquires-clifton-laboratories

I forget the exact price but think it was in the $60-70 
neighborhood.  Rejection is something like 60-80 dB.

I did see an improvement it the receive noise floor below about 520-KHz

Connect to the KXV3 xvt-Rx BNC jack.  Use of the K3 on 630m requires 
a KXV3 as you transmit in the TEST mode at 1mw thru the KXV3 xvt-Tx 
BNC.  This is good as you will need to drive a PA which will not pass 
received signals.  An external coax TR relay is needed after the PA 
to  bypass RF to the xvt-Rx port.

73, Ed - KL7UW

Date: Wed, 6 Dec 2017 16:50:13 -0600
From: John Seboldt K0JD <k0jd-l at seboldt.net>
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 Has anyone compiled a macro for 630 Meter
         operation
Message-ID: <0effb952-e988-8d66-2a61-eecfbe37fb90 at seboldt.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Considering that all I hear down there is broadcast station birdies, I'm
guessing you're right. :-(


73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   dubususa at gmail.com 



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