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Messages - OgreVorbis

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1
Equipment / Would this dual antenna design work?
« on: August 04, 2020, 1441 UTC »
So at some point in the not too distant future, I'm going to purchase a new property with more space. I want to put up an antenna system with two antennas. One for shortwave and one for mediumwave (both for TXing and RXing). I want the minimum number of towers/supports for cost and size. The shortwave will be an inverted V and the mediumwave, inverted L. I want to insulate the base of the tower and drive it for mediumwave and for shortwave, I want to attach an inverted V to the top of the driven tower. Will this work or do I need another tower to support the V so I don't get interference or other problems? I won't TX on both at the same time if that helps.

Maybe you have a better idea?

(Note that the inverted V is not parallel with the L; it is perpendicular. It just looks like that cause I can't draw 3D.)
Here is a diagram:

2
Equipment / Re: DRM pirates
« on: August 04, 2020, 1421 UTC »
I used the DReaM software to generate DRM about 16 or 17 years ago. I had to modify my high level audio MW transmitter in some way to take the coded signal. Can't recall exactly what I had to do but there were 2 outputs from the PC. One output went into the normal audio input on the TX and the other went to a small circuit that I had to put in the output of the PLL oscillator.
I don't think the mod is needed on modern transmitters though.

It worked.............sort of.  Not having a portable DRM radio was not ideal for field tests but I was able to decode it on another PC in the house with a modified radio.

Huh, didn't realize this was that old, surprising.
I see, so it's the same way as c-quam. Maybe I'll test it someday...

3
Equipment / DRM pirates
« on: July 23, 2020, 0244 UTC »
I've been looking into DRM recently and I found these products which seem more like something a pirate might use:
http://www.nti-online.de/edrg30.htm
http://www.nti-online.de/edrg30usb.htm

I am a bit confused about the process though. It seems to me like this may actually just be an SSB transmitter cause it looks like the PC is the source of the actual DRM signal. Is that how most DRM systems work, or do the professional transmitters generate the DRM inside them?
Are most DRM signals actually an SSB signal rather than AM? Could you generate the DRM on a PC and just feed that into an old fashioned AM transmitter? Yes, it would be less efficient, but does it work?

I am trying to decide what I'm going to do with my next shortwave transmitter. Do you think a super wide 15 kHz analog SSB signal made with an SDR would be better than DRM?

4
The whole point here is minimizing total transmission delay time. They want to be as close to the Chicago Mercantile Exchange as possible.

That's exactly it. There was a story, not sure if it was posted here or if I read it elsewhere, where some guy discovered someone that purchased an old cell tower in Chicago and attached a SW antenna to it and were using it for this purpose. They weren't a licensed SW broadcast station, but rather a ham guy or maybe even a pirate - can't remember.

In addition, I wonder how they got the approval for less than 50kW. That is the minimum power for SW broadcasting in the US. I actually looked into starting a SW station once and was turned off by the high minimum power requirement.

5
Equipment / Re: Higher highs and lower lows on MW TX antenna
« on: July 13, 2020, 2019 UTC »
Via Groundwave or Skywave? Day or night? What antenna type and dimensions?

Str.

Skywave only. Night. Antenna is 1/4 wave inverted L 60-70 ft tall, the rest horizontal.

Too little information.
Are you comparing SW with MW?

No, I'm comparing MW with MW. I wouldn't compare with SW cause that would be different.

Either way, it's not really a problem, but I find it very interesting. It's not what I would expect.

6
Equipment / Higher highs and lower lows on MW TX antenna
« on: July 13, 2020, 0817 UTC »
Compared with a MW broadcasting station, my antenna produces higher peaks and lower troughs at all times and all listening locations. Why is this? Does this have to do with angle of radiation? It is interesting that during the peaks, it's actually better than a number of MW stations at the same distance, but it dips so deep that it can't be heard sometimes. Would making the vertical section longer improve this? I always thought that angle of radiation simply has to do with the distance covered, but maybe it's more than that. If it's not angle of radiation then what is it?

7
When looking at the pirate radio logs here as well as the list... https://www.hfunderground.com/wiki/List_of_Pirate_Radio_Frequencies

You can see there is nothing noted in this range. I can understand why much higher frequencies are not used cause they are not very reliable. But in this range, I would expect easier antenna installation with a higher efficiency at lower heights. Also much shorter for smaller lots and increased daytime range. Maybe the doughnut is too big (bad local)? By doughnut, I mean the empty area between the groundwave and the skip zone. Is there just no space for it? I don't know this band too well.

8
Bacon, BBQ, Beef, And More / Frankie's Free Range Meat
« on: June 19, 2020, 1923 UTC »
I am not affiliated with them, but I know the guy cause he has a youtube channel about nutrition and about some conspiracies I don't necessarily agree with, but a good guy. Hopefully, you don't mind this advertisement Chris :)
With the current beef supply limits in the US, I figured it would be good to let people know about this source. They sell in bulk at some of the cheapest prices online. All grass fed mostly from NY farms or Australia. He complains about not making much money from his low costs (and it's not just a marketing ploy). In addition, most everything is sourced directly, so there should be no supply chain issues unless too many people purchase.

https://frankiesfreerangemeat.com/

9
Because the world health organization is funded by eugenicists. It has nothing to do with health and all to do with money and power. I know this forum is not for debates, so I'll just leave it here and not follow up.

10
General Radio Discussion / Re: Pirate radio laws outside the US
« on: June 10, 2020, 1036 UTC »
I wonder, are there any countries that have no regulations - like no FCC at all? It would be so fun to be able to pirate 24/7 and maybe even have commercials to make money.

11
Equipment / Re: What are you using for SWLing?
« on: June 10, 2020, 0432 UTC »
I just use an AirSpy HF+ and a mediumwave inverted L. I generally DX mediumwave or low shortwave signals. In this day and age, I don't see an advantage of a "real" receiver. SDRs have surpassed traditional receivers in both cost and performance. The AirSpy is probably not the best thing out there, but for the pricepoint, it's very good. Better and less complicated than an RTLSDR with downconverter.

12
General Radio Discussion / Re: Pirate radio laws outside the US
« on: June 06, 2020, 0935 UTC »
There is certainly interest from those regions!

Visitors to my jingle-playlist webpage (see images)
@ http://jingleproductions.coolam.nl

André
CoolAM Radio - Shortwave
the Netherlands

That is interesting. I wonder if those were just curious people or bots or if they actually heard it. That would be amazing. What's your farthest signal report?

Anyone here from either Germany or Poland?

13
General Radio Discussion / Pirate radio laws outside the US
« on: June 05, 2020, 0405 UTC »
Most pirates are in the five eyes countries. What are the rules like in other countries? Like Europe and Asia mostly. I know China would be pretty harsh, but what about the other Asian countries? Is anyone here from a European country and can explain what the scene is like there? (I am not necessarily talking about FM, but rather SW and MW.) In Asia, the countries I'm not sure about are Vietnam, Thailand, Laos. Clearly China would be insane, but these other countries aren't fully communist, so I wonder. I tried using google translate to find sites in other countries, but nothing obvious comes up. Maybe it's just non-existent and unexpected and therefor safer?
Not that I plan on doing it.

14
General Radio Discussion / Re: Husdon Co (NJ) TIS gets 100W STA
« on: June 01, 2020, 1128 UTC »
We should see what happens on June 20th. This is when this provision is meant to expire. If they do not lower power, they do mention in a couple clauses compliance with WRCR in NY. After that date, I think we should email WRCR and tell them it is in their best interest that the TIS be lowered back to 10W cause they are continuing to broadcast at high power. I think a message from WRCR would be enough to get them to comply given that they were mentioned in there.
There's also several other TISs using that frequency and I suspect that WQFG could also be interfering with them given that you can hear their signal across the whole east coast. Maybe notes to the other TISs would also be good.

Not many pirates on 1710 anymore, except corsair. I'd love to hear more on there again someday, but it's not going to happen with WQFG drowning out everything. Their coverage seems as good as a 1kW broadcast station, maybe they're cheating? In addition, the new pirate act doesn't include 1710, but does include the rest of the MW band.

15
SDR - Software Defined Radio / TDoA_service - Hams or FCC?
« on: June 01, 2020, 0304 UTC »
Recently I was listening to a pirate broadcast and this user called "TDoA_service" was entering some SDRs and set to the same frequency of the pirate station. Is this something that pirates typically experience from curious ham operators or is this the FCC?

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