- Small VHF Transmitter - 3 Updates
- Bootload ATMEGA328 - 2 Updates
- HDTV half Screen Horiz Hold - 1 Update
| "ohg...@gmail.com" <ohger1s@gmail.com>: Sep 05 07:32PM -0700 > That stunt could have wiped out communications for emergency > vehicles on the VHF high band, the two meter ham band and airports. You > could have indirectly caused people to die. Well, that might explain the several near misses of aircraft at 15000ft over our city... FFS, do you honestly think a milliwatt output into a pair of rabbit ears with a range of about 15 - 20 feet would end emergency communications and civilization as well? I have a feeling your broadcast "career" was wiring up TVs for Chucky Cheese - and you were paid in pizza and Sprite.. |
| Michael_A_Terrell <terrell.michael.a@gmail.com>: Sep 06 01:56AM -0400 >> vehicles on the VHF high band, the two meter ham band and airports. You >> could have indirectly caused people to die. > Well, that might explain the several near misses of aircraft at 15000ft over our city... FFS, do you honestly think a milliwatt output into a pair of rabbit ears with a range of about 15 - 20 feet would end emergency communications and civilization as well? I have a feeling your broadcast "career" was wiring up TVs for Chucky Cheese - and you were paid in pizza and Sprite.. Sigh. I was a broadcast engineer for AFRTS in the '70s while I was in the US Army. I have the distinction of being the only one to ever test out of the three year 26T20 school while in Basic. It was a combination of Electrical Engineering, and Broadcast Engineering. My score was over 90%, the average score was 20%. I also have a letter of Commendation from a two star general for the job I did, rebuilding the station at Ft. Greely, Alaska. I worked for Weathervision, at Ft. Rucker. We provided two channels of weather data for the flight school, along with ten channels of ETV for the flight school and Infantry school. We built one of the first remote switching for the civilian cable TV that served the base. A custom, high isolation RF switch was connected were it entered the base. At the flip of a switch in th ETV building took it over, and all 12 channels carried the same information. It was only used during emergencies. It was powered through a dedicated pair provided by our telecommunications section. Later on, I worked for WACX in Orlando, Florida. We were on Ch 55, with a 5MW EIRP from a 1700 foot tower. After that, I was the 'Engineer of Record' when I built WMRX under the FCC construction permit, in Destin Florida. It was on Ch 58. Aircraft used AM radio with a sensitivity in the singe digit microvolt levels. If we could detect the leakage from blocks away, it is radiating more than you think. The system I worked for in Cincinnati, Ohio provided +10dBmv for each drop. You do the math. When you have more than one idiot doing intention leakage, it adds up to enough radiation to cause problems. Some cable channels were not allowed to be used near airports, because of this. What you think, doesn't really matter. It is what the FCC requires. If they drive one of their monitoring vans through your service area and detect leakage, the cable system is fined. I've never been in a Chucky Cheese. Enjoy playing with the other children, when you're there. -- Never piss off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
| Fox's Mercantile <jdangus@att.net>: Sep 06 04:55AM -0500 On 9/6/20 12:56 AM, Michael_A_Terrell wrote: > [ Another boring bit of "look at me!" ] I'd mention what I did in the 25 years I spent in the aerospace industry, but I don't need to brag to get an erection. Those that know me, know what I did. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| Daniel Fynn <fynnashba@gmail.com>: Sep 05 06:00PM -0700 On Friday, September 4, 2020 at 6:55:08 AM UTC+1, Clifford Heath wrote: > <https://www.arduino.cc/en/Tutorial/ArduinoISP> and use that to program > your ATMEGA328. > Clifford Heath. Thank you very much I will visit the site. |
| Daniel Fynn <fynnashba@gmail.com>: Sep 05 06:01PM -0700 On Friday, September 4, 2020 at 4:20:24 AM UTC+1, Ralph Mowery wrote: > Either way , you put the two boards together with a few wires and run > the boot loader program from a computer. > Youtube has many examples to take you through the steps. Thanks |
| Michael_A_Terrell <terrell.michael.a@gmail.com>: Sep 05 03:38PM -0400 > Don't understand it. Portable LCD HDTV right part of screen looks > like it is scrolling and flickering. Even during the local (ie not > broadcast) station resampling mode. All stations. From what little information that you've provided, we can only guess. It sounds like a bad driver IC or damaged LCD in the display panel. What do you see with no antenna? It should be a blank, solid screen. -- Never piss off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
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