HopelessDemigod

HopelessDemigod, 4 months ago to random

Each individual OFDM subcarrier is modulated with a Quadrature amplitude modulation signal. The advantage of this is that each individual carrier sends data at a relatively slow rate and the aggregate data rate is the sum of all the subcarriers. QAM uses two carriers 90 degrees out of phase. The amplitude of each carrier determines the resultant vector of the modulated wave to create a data bit. For example; the sum of the carriers equals +45 degrees at 25% amplitude a 1101 data bit is sent.

HopelessDemigod, 4 months ago to journalism

#Media

(CNN) "Liberal groups hoping to.."

Why is it necessary to preface this with the word "liberal"?

The descriptor isn't needed. Do better.

HopelessDemigod, 4 months ago to random

CSNET was developed on Digital Equipment Corporation (DEC) VAX-11 systems using BSD Unix, but it grew to support a variety of hardware and operating system platforms.

The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. Its purpose was to extend networking benefits, for computer science departments at academic and research institutions that could not be directly connected to ARPANET, due to funding or authorization limitations.

HopelessDemigod, 4 months ago to bbs

I used to run RA BBS (Remote Access BBS)
GoldEd (Mail Editor)
Front Door

Do you remember ZMH? Zone Mail Hour?

I wonder why this was never scaled to work with ham radio. Why can’t we make this work using HF for backhaul?

The whole idea of using TCP for everything ruins the feel.

#BBS #FidoNet

HopelessDemigod, 4 months ago to random

Remember when the internet was fun and new?

Usenet
Gopher
FTP
Telnet
IRC
Netscape Navigator
Cisco Routers where cool and not just overpriced junk

I offer equal time for an opposing view.

HopelessDemigod, 4 months ago to random

@ThinkingSapien

Send me some warmer weather. It sucks up here right now.

HopelessDemigod, 4 months ago to news

#News #Aliens #Fraud

"Aliens" found in Peru are actually dolls made of bones, forensic experts declare.

Aliens have not been discovered in South America after all. The doll-like figures, photos of which went viral online last year, are just that – dolls, according to scientists.

The controversial artifacts were seized by Peruvian customs agents in October and intended for "a Mexican citizen," the Associated Press reported.

lauren, 4 months ago (edited 4 months ago) to random

AT&T is sending out letters warning they want to kill virtually all landlines (and perhaps related data circuits where fiber is unavailable) across essentially their entire coverage area throughout California. This would have devastating effects. Related CPUC meetings will be taking place through March.

Landlines provide crucial services for individuals, businesses, and other organizations in a wide variety of situations -- not just emergencies when cellular and Internet service tends to rapidly fail, but also for vast numbers of people in areas with poor, unreliable, or in many cases (even in large sections of major cities!) NO cell service, NO fiber, etc.

Landlines often provide the only available communication in a wide variety of security and safety situations, from elevators to interior spaces of all sorts where cell service simply doesn't work.

Many disabled and other persons have crucial equipment that depends on landlines. Often they are not tech-savvy and do not have friends or relatives to help them through forced technology changes.

AT&T has been shirking its public safety responsibilities for years, while still leveraging their effective monopoly on services in so many areas.

Their new effort must be stopped. I'll have much more to say about this as the situation progresses.

HopelessDemigod, 4 months ago to shortwave

#Shortwave #Radio #Contest #cyptography

Crypto Transmission from KPH

Numbers Stations began their cryptic broadcasts during the Cold War and can still be heard today. Agents, get your one time pads ready! The next KPH crypto event will replicate these broadcasts with a transmission you can decode. The numbers broadcast will commence at 2100Z (1300 PST) on 20 January 2024 on all KPH CW and RTTY frequencies.

https://www.radiomarine.org/mrhs-events

Shortwave and cryptography enthusiasts please boost.

HopelessDemigod, 5 months ago to random

#MNWX

WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM CST SATURDAY...

• WHAT...Steady snow tonight through Friday night with total
  snow accumulations of 5 to 7 inches.

• WHERE...Rice, Goodhue, Waseca, Steele and Freeborn Counties.

• WHEN...From midnight tonight to 6 AM CST Saturday.

https://www.weather.gov/mpx/

HopelessDemigod, 5 months ago to random

Night number three of sleeping with the window open. Tomorrow I’m purchasing mothballs for the basement. I suspect a skunk is hiding down there and I won’t have it. Bright lights, music, and mothballs. More aggressive options are on the table such as having a professional use a live trap to remove the critter.

#Skunk

HopelessDemigod, 5 months ago to hamradio

#HamRadio #Vintage

Who made this?

Vintage 6 meter and 2 meter AM transmitter

nixCraft, 5 months ago (edited 5 months ago) to random

Poll: We have three major browser engines: Apple Safari, Mozilla Firefox, Chromium/Google Chrome and its clones. Out of the three major web browsers, how many are currently installed on your system? Please boost for reach.

HopelessDemigod, 5 months ago to history

#History #BBC #Television

Prior to World War Two, one of the few countries to have a public broadcast television service was Britain. The BBC broadcast John Logie Baird's 30-line TV pictures on medium wave between 1929 and 1935. In November 1936 they upgraded to transmissions on 45 MHz

HopelessDemigod, 5 months ago to retrocomputing

I hereby decree 2024 is the year of the Intel 486 CPU. Get out those old machines and bring them to life.

Attach pictures

130 points for 186 (Yes they made this. Sold by RadioShack and HP)
120 points for 286
110 points for 386
100 points for 486
75 points for Pentium 1 or Pro
50 points for Pentium 2
25 points for Pentium 3
0 Points for anything newer than P3

#RetroComputing #486 #Pentium

HopelessDemigod, 5 months ago to hamradio

#Radio #HamRadio

When you think of your radio hobby, which of the following do you enjoy?

1. Building equipment including kits but NOT antennas

2. Building / installing antennas

3. Medium wave

4. HF (Air / Broadcast / Ham / Marine / Utility)

5. VHF Low band (30 MHz - 88 MHz)

6. FM Broadcast Band DX'ing.

7. VHF

8. UHF - 1 GHz

9. Microwave

10. EME or Satellites

11. Digital Modes (CW / Data/ SSTV)

12. Digital Modes (Voice)

13. SOTA / POTA

14. Rag chewing / Nets

15. Repeaters

HopelessDemigod, 5 months ago to random

When is @shadytech going to introduce Direct Distance Dialing?

HopelessDemigod, 5 months ago to random

#Sega #Genesis

Any one here collect Sega Genesis games?

I have a bunch I would like to get rid of.

Make a reasonable offer for the lot.

F22
Road Rash 3
Jurassic Park - Rampage Edition
Sonic 2
Boogerman
Family Feud
Dr. Robotnik's - Mean Beam Machine
Ms. Pac-Man
Road Rash 2
Sonic Spinball
ShanGhai

HopelessDemigod, 5 months ago to hamradio

For my ham radio friends.

A gentleman in Cambridge Minnesota ran a 6 meter SSB net this evening on 50.200

With his large 6 meter (50 - 54 MHz) beam he could work 100 miles in all directions as he swung the antenna around. It was good to hear all of this local traffic.

The net starts at 7:30 central time on Tuesday nights. Perhaps people in other states could try making contacts next week.

#HamRadio

briankrebs, 5 months ago to random

The U.S. Federal Bureau of Investigation (FBI) said today that it infiltrated the world’s second most prolific ransomware gang, a Russia-based criminal group known as ALPHV and BlackCat. The FBI said it seized the gang’s darknet website, and released a decryption tool that hundreds of victim companies can use to recover systems. Meanwhile, BlackCat responded by briefly “unseizing” its darknet site with a message promising 90 percent commissions for affiliates who continue to work with the crime group, and open season on everything from hospitals to nuclear power plants.

https://krebsonsecurity.com/2023/12/blackcat-ransomware-raises-ante-after-fbi-disruption/

@nixonnixoff ]

image/png

mauve, 5 months ago to Ottawa

It's that time of the year where #Ottawa wrather lulls you into a false sense of safety as it warms up just before it doubles down on winter for the next 4 months. 🥲