[Lowfer] Skywave frequency shift
wa3tts at verizon.net
wa3tts at verizon.net
Sun Feb 7 19:25:41 EST 2021
Dex (& All): Interesting, skywave went short-hop in late afternoon today, good E's still showing MUF 50~79 MHz overWestern SC....wonder if all that iono turbulance at 1900 kHz was part of the build-up to the E's opening this late afternoon/eveningthat is still present in the upper HF bands....
I was using WSM as a test signal last night (amazingly clean audio on that TX) , as my e-probe went on the Fritz....turned out to be a F-connector at the choke below the e-probe in tree. Boy that aluminum jacket jets gnarly after several years outdoors, I had to hack away 5 ft of RG6 to find reasonably clean metal with some De-OXit assistance.....e-probe was only drawing 5ma, but back to 20ma now....
73 Mike wa3tts
-----Original Message-----
From: W4DEX <dexter.mc at gmail.com>
To: Discussion of the Lowfer (US, European, & UK) and MedFer bands <lowfer at mailman.qth.net>
Sent: Sun, Feb 7, 2021 6:45 pm
Subject: [Lowfer] Skywave frequency shift
I've been monitoring the second harmonic of 950 kHz AM stations on 1900
kHz. All during the day, I see a near steady in amplitude and frequency
carrier from what I suspect is from WORD in Spartanburg SC that is 93 miles
to my west. During the morning hours and back again in the mid afternoon
hours I receive a signal that is slightly higher in frequency and with what
may be skywave distortion. Just wondering if this may be from WWJ, a 50 kW
station near Detroit MI 492 miles to my NNW.
Remembering the good old days when WSM and KFI had crystal oven oscillators
:)
Dex
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