QRP

[ivconic]

Days of old glory has passed long time ago... yet; anybody in mood for QRP?

[Krzysztof]

QRPP/144
Chris.

[ivconic]

It is MST2-20M, but i had to draw quite new pcb for it, to match given enclosure.
Hooh! Looking in schematic i got wrong impression that it will be piece of cake to draw it!
How wrong was i? It took me quite an effort to finish it in several hours.
I am still seeing "flying angels", "blue bubbles" and lot of "white hum" in front of my eyes and hearing various "bells" around my head!
Completely exhausted!
...
Yeah... 144/2M ! Used to make those in early '90s.
Now are cheap, no sense to diy them at all.

https://www.aliexpress.com/item/BAOF...7-1c6a17d90d1a

[Nupi]

Looks good. Did you make the pcb?
I do or make anything more in years with amateur radio.
Maybe something QRP apps?

[ivconic]

Looks good. Did you make the pcb?
I do or make anything more in years with amateur radio.
Maybe something QRP apps?

I just finished drawing it... started last night!
It is about to be made soon in this version (hopefully a better than older version).
Older and bit different (simpler) version you can hear here (works like a charm, considering it is very simple design):

[Nupi]

You're a quick draftsman, but I knew that already.
Good sound. A simple lf - filter for CW reception could do wonders in this fun transceiver.

[Wahyu]

hello ivconic
greeting from Indonesia

de YD1CLI
https://qrz.com/db/YD1CLI

https://www.youtube.com/watch?v=VgY_LF-Uzwo

[ivconic]

hello ivconic
greeting from Indonesia

de YD1CLI
https://qrz.com/db/YD1CLI

https://www.youtube.com/watch?v=VgY_LF-Uzwo

Cool!
I was going to draw my own SMT pcb, since i can not find any done by others with full documentation.
I was planning to do that in few weeks, after i check this TH in practice.
But in meantime if i find that somebody else is offering free pcb docs; i might decide not to draw my own.

[ivconic]

You're a quick draftsman, but I knew that already.
Good sound. A simple lf - filter for CW reception could do wonders in this fun transceiver.

I am planning to experiment bit more with VLF/ULF (bellow 200kHz) ideas later this winter.
But this one i did for a friend. And in a moment i decided to make it too, because i like it.
Funny things is how "trend" is changing at every several years, now 20/40M is actual again here on these areas.
It was pretty dead for quite some time. Now is back again.
I guess it has also much to do with global propagations and climatic changes, because it is obvious that sky is pretty clear now for these bands.
And speaking of that... the same "sky" is not very clear for my Deus working at 8 and 12kHz !??
For no obvious reasons; last couple months it is impossible to calm down the Deus at those frequencies!?? Despite all the tricks i learned with it so far.
On 18kHz it is working calm!? And it is not only up to my unit, we have 4 Deuses in a gang, all are behaving the same!?
Something funny is going on in the air lately! Misty business... i' tell ya!

[Wahyu]

i work at 40M mono band, 2 year ago
'
i made own PCB eaglecad
TIA-TRX-lowcost-v4.zip

for schematic and document http://www.qsl.net/f8voa/LIST.html

QRP 10Watt mode SSB LSB
DX sucess S5Ø8PMC Slovenia , 40M 7.133 Mhz

[ivconic]

i work at 40M mono band, 2 year ago
'
i made own PCB eaglecad
[ATTACH]37701[/ATTACH]

for schematic and document http://www.qsl.net/f8voa/LIST.html

QRP 10Watt mode SSB LSB
DX sucess S5Ø8PMC Slovenia , 40M 7.133 Mhz

[Nupi]

.....
And speaking of that... the same "sky" is not very clear for my Deus working at 8 and 12kHz !??
For no obvious reasons; last couple months it is impossible to calm down the Deus at those frequencies!?? Despite all the tricks i learned with it so far.
On 18kHz it is working calm!? And it is not only up to my unit, we have 4 Deuses in a gang, all are behaving the same!?
Something funny is going on in the air lately! Misty business... i' tell ya!

Perhaps the Deus is programmed to malfunction in the low-frequency end of 2016.
So you'd like/must to buy the new V4 search coil???


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[Krzysztof]

Hi.
Once all on foot, XVFO, X-tal switches.
There was still the digitals.
Today you order on the net.
Chris

[Krzysztof]

And speaking of that... the same "sky" is not very clear for my Deus working at 8 and 12kHz !??
For no obvious reasons; last couple months it is impossible to calm down the Deus at those frequencies!?? Despite all the tricks i learned with it so far.
On 18kHz it is working calm!? And it is not only up to my unit, we have 4 Deuses in a gang, all are behaving the same!?

Last seen big geomagnetic changes.
A lot of sunspots and CMR-it will give you amazing distortions with the ionosphere. And Deus has a large antenna!
This way to Deus, you'll see the upcoming earthquake and volcanic eruption.

[ivconic]

Last seen big geomagnetic changes.
A lot of sunspots and CMR-it will give you amazing distortions with the ionosphere. And Deus has a large antenna!
This way to Deus, you'll see the upcoming earthquake and volcanic eruption.

As you probably heard; there was a series of earthquakes in Italy lately. I am not following exact timing of those; but i see that Deus is gone pretty crazy lately.
And just 6-7 months ago situation was quite opposite; it was instable on 18kHz and very stable on 12kHz !??
...
This winter i will definitely make ULF receiver. With different coils it can catch lot of those spurious and misty events.