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locked AGC Question
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John Carobine
I have an FTdx-3000. What is the recommended AGC setting? Thanks. WB8RFB
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Andrew OBrien
If you are talking about AGC with modes like FT8, FT4 , the usual recommendation is to experiment with various settings on the rig and see how they impact varying receive conditions. K1JT's 2018 guide (https://www.physics.princeton.edu/pulsar/K1JT/FT8_Operating_Tips.pdf) says...
" Use the rig’s AGC or take care to adjust the RF gain control and attenuator whenever there are strong signals on the waterfall. Overload in the receiver and/or sound card can mess with any digital signal processing in your rig and on the soundcard including, WSJT-X’s decoding and waterfall display. AGC is the easy option, preferably on a fast setting. Consider using your rig’s filters too... "Andy K3UK
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John Carobine
Thanks Andy. Appreciate your message and the link to the guide. 73 WB8RFB
On Saturday, January 4, 2020, 09:54:48 PM CST, Andrew OBrien <k3ukandy@...> wrote:
If you are talking about AGC with modes like FT8, FT4 , the usual recommendation is to experiment with various settings on the rig and see how they impact varying receive conditions. K1JT's 2018 guide (https://www.physics.princeton.edu/pulsar/K1JT/FT8_Operating_Tips.pdf) says... " Use the rig’s AGC or take care to adjust the RF gain control and attenuator whenever there are strong signals on the waterfall. Overload in the receiver and/or sound card can mess with any digital signal processing in your rig and on the soundcard including, WSJT-X’s decoding and waterfall display. AGC is the easy option, preferably on a fast setting. Consider using your rig’s filters too... "Andy K3UK Groups.io Links: You receive all messages sent to this group. View/Reply Online (#5152): https://groups.io/g/WSJTX/message/5152 Mute This Topic: https://groups.io/mt/69430488/1429670 -=-=- WSJT-X Weak Signal Communication . ©2001-2020 by Joe Taylor, K1JT. References : <a href="https://physics.princeton.edu/pulsar/K1JT/refs.html" target="_blank">https://physics.princeton.edu/pulsar/K1JT/refs.html</a> -=-=- Group Owner: WSJTX+owner@groups.io Unsubscribe: https://groups.io/g/WSJTX/leave/7419179/2004932816/xyzzy [wb8rfb@... ] -=-=-=-=-=-=-=-=-=-=-=-
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John, K9MM
K1JT's 2018 guide (https://www.physics.princeton.edu/pulsar/K1JT/FT8_Operating_Tips.pdf) says...This document is actually written by ZL2IFB, and version 1.19 (56 pages) at this link is from April 2018. The latest version, currently 2.27 (79 pages), is always posted at https://www.g4ifb.com/FT8_Hinson_tips_for_HF_DXers.pdf Highly recommended reading! 73, John, K9MM
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Andrew OBrien
Thanks for the correction John.
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Andy
On Jan 5, 2020, at 8:23 AM, John Becker <johnb3030@comcast.net> wrote:
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