Showing posts with label Interference. Show all posts
Showing posts with label Interference. Show all posts
Thursday, October 6, 2022

Adding a Diode Ring to the Direct Conversion Receiver, And How the Diode Ring Works

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I take a look back at Wes Hayward's classic DC receiver from the November 1968 QST. I then try to describe how diode ring mixers work (...
2 comments:
Sunday, March 7, 2021

EXORCISM! 40 Meter RFI Problem Resolved

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BEFORE David W. suggested I use my RTL-SDR dongle to look for the source of the 40 meter RFI that I have been mentioning.  (It appears as an...
7 comments:
Tuesday, December 15, 2020

SolderSmoke Podcast #227: Solar System, SDR, Simple SSB, HA-600A, BITX17, Nesting Moxons? Mailbag

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SolderSmoke Podcast #227 is available:  http://soldersmoke.com/soldersmoke227.mp3 Travelogue Mars is moving away.  Jupiter and Saturn clos...
12 comments:
Monday, June 12, 2017

FDIM: Bob Crane Interviews Ed Hare W1RFI

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I always associate "Ed Hare" with that picture of him holding an HW-8 in the ARRL lab. I was supposed to edit this one a ...
Thursday, January 21, 2016

High-Pass Filter Knocks Down AM Broadcast Interference

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WFAX 1220 AM was starting to bother me.  Each morning, I'd be drinking my coffee, listening to nice roundtables on 160 meters, when...
4 comments:
Wednesday, January 20, 2016

Another AM Broadcast Interference Story

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Bill,Pete Another great solder smoke podcast today.  I especially liked the detail of you using the S-meter to check on the local broadcas...
1 comment: