[Lowfer] SAQ frequency stability

[jrusgrove at comcast.net]

SAQ's 10/24/23 transmission was much more unstable than normal. Today's 
transmission was much better but not quite up to normal stability. Instability 
when first keying up during the test and tune and also at shutdown (if the key 
is held down when de-energizing the alternator) is normal. Other than that 
it's usually remarkably stable.

Jay W1VD 


----- Original Message -----
From: Zack Widup <w9sz.zack at gmail.com>
Reply-To: Discussion of the Lowfer \(US, European, & UK\) and MedFer bands <lowfer at mailman.qth.net>
To: Discussion of the Lowfer (US, European, & UK) and MedFer bands <lowfer at mailman.qth.net>
Sent: 12/24/2023 12:57:49 PM
Subject: Re: [Lowfer] SAQ in Indiana


Earlier this year, SAQ transmitted a message and I tuned in on a KiwiSDR
station in Sweden. I noticed that same frequency drift then. It's 
amazing
that they use an AC generator to produce the signal.

Zack W9SZ

On Sun, Dec 24, 2023 at 11:36 AM Gedas <w8bya at mchsi.com> wrote:

> I just wish we did not have this super weird warm front moving in from
> the southwest and south that brought in all kinds of QRN. The lightning
> crashes were elevating my NF by at least 10 dB.
>
> As an aside, and this is not something I would normally do, I took a
> screen capture of my 2nd video and snipped out a portion and brought it
> into Photoshop where I applied some Unsharp masking. That works by
> increasing the contrast between dark and light areas. It did help as
> seen in the image at the URL below. What is neat is the wavering freq
> matches to what I was seeing on their YouTube video as they were fine
> tuning the transmitter. 73
>
>
> https://drive.google.com/file/d/1uAOOpmfVzMPwr3msCaySRT9PpZEUcq-
j/view?usp=sharing
>
> Gedas, W8BYA EN70JT
> Light travels faster than sound.....
> This is why some people appear bright until you hear them speak.
>
> On 12/24/2023 12:15 PM, Zack Widup wrote:
> > That's amazing that you could detect it. I didn't think anyone very far
> > west of the east coast has ever heard it, including the midwest.
> >
> > My Airspy Discovery HF+ covers that frequency. But some people use
> > longwires and a soundcard spectrum display program to detect SAQ.
> >
> > 73, Zack W9SZ
> >
> > On Sun, Dec 24, 2023 at 10:30 AM Gedas<w8bya at mchsi.com> wrote:
> >
> >> SAQ was detected only in my waterfall (marginally) due to the high
> >> thunderstorm QRN in the Midwest and Gulf.
> >>
> >> Here are several video clips showing the transmitters frequency being
> >> fine tuned prior to the formal message.
> >>
> >>
> >>
> >>
> 
https://drive.google.com/file/d/1Tl0cJu2RIw9Tl7cVLshRE9akoU6zZ7Yy/view?usp=sharing
> >>
> >>
> >>
> >>
> 
https://drive.google.com/file/d/1jE0m1euNVXDm5yA33tWeTqDmiBplfRRA/view?usp=sharing
> >>
> >>
> >>
> >>
> 
https://drive.google.com/file/d/1QgqsF5VkeYPM0nzoz4Ka6UT0KhRKlCLS/view?usp=sharing
> >>
> >>
> >> Gedas, W8BYA EN70JT
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