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Messages - Monophonia

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2
For Sale / Wanted / Barter / Re: wanted AM MODULATION MONITOR
« on: May 04, 2023, 1539 UTC »
I have a Belar "The Wizard" AM mod monitor in great condition I am considering letting go for the right price. I am in the US though.

3
The nearest public Kiwi is swamped in it's own broadband QRM in that bit of spectrum.

 The rest of the mapped kiwis are 60+ miles away, no discernable signal on them.

I did get a bearing on it with my flag antenna, The strong null points off into empty field, by the map the nearest structure is over half a mile away. If the weather clears and I get the farm chores done I'll do a bit of driving and see if I can get additional bearings.

4
That is really bad local RFI (interference).

Well, I was able to verify that whatever it is, it's not local. We had an area power outage and it is as strong as ever using the IC-705.

When I get my noise flag from DXE I'll see if I can take a direction on it.

A power outage doesn’t always eliminate local QRM. For example, it could be a device in a home with a generator.

I don't think I defined local well enough, in this case myself and the immediate neighbors (300 yard radius). Nobody in that radius has an automatic standby generator so there is a fairly reliable period of outage before everyone hauls out their portables. And since it was mid-day with many at work, I don't think anybody actually started their sets.

I've done a fair bit of RFI hunting, this one just still has too many signal qualities for me to write it off as noise just yet hence the inquiry. Though reality often points to the boring answer.

5
That is really bad local RFI (interference).

Well, I was able to verify that whatever it is, it's not local. We had an area power outage and it is as strong as ever using the IC-705.

When I get my noise flag from DXE I'll see if I can take a direction on it.

6
Bumping this since It's still on my mind, and it's still persistent in the same spot with the same intervals.

Best observed to my knowledge on this kiwi: http://nd8dkiwi.ddns.net/

7

A very wide discernable signal on the waterfall, with "carriers" every 4Khz.
First carrier at 3760KHz last carrier at 5192Khz
13:46UTC 8/4/22 ongoing
Bursts up to 18 seconds long, some as short as 2 seconds long, the transmissions are occurring no more than 20 seconds apart.

I have a recording taken in IQ mode centered on the first carrier, some screenshots of the waterfall showing the definition of the signal.

Receiver is my own KIWI SDR and 160M inverted V in Ohio.



8
Amateur Radio / Re: 2M SSB
« on: August 27, 2020, 2358 UTC »
All this 2M SSB talk is making me want to get a 2M beam for my 50' tower build coming up. I'll have more than enough wild load and rotator capacity to put a sizeable 2M beam under the hexbeam.

9
10db over S9 into SW ohio.

10
Decent into SW Ohio, S8-9 on the vertical.

11
Coming in decently to SW Ohio. Finally something good to use the kiwi's synchronous AM on.

12
Gotta say the propagation has been very kind to you this evening, goes to show how powerful it is, even with the low power.

13
We are up.  Antenna is screwed, the harmonic filter is broken, but the show must go on!

+-RH

Well, I don't hear you on 8370 or 12555 so we're good!

14
North American Shortwave Pirate / XFM 4185 AM 0100 UTC 25 JAN 2020
« on: January 25, 2020, 0201 UTC »
With an intriguing opening track, it's Redhat.

edit: Actually sounds like a bed, maybe I caught him testing.

edit2: Standby placeholder/message

59+10 in SW Ohio and a butternut HF2V vertical on 16 radials.

15
I am on their list of beta testers. So far it's been crickets since early June.

I understand the challenges of small teams and hardware development, but updates would be nice.

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