Search found 882 matches

by w9wi
Sat Mar 01, 2008 8:43 am
Forum: Everything else
Topic: Oversized crane in tunnel crash caught on tape
Replies: 10
Views: 1024

Re: Oversized crane in tunnel crash caught on tape

Heck, that used to happen all the time in Madison, under the railroad bridge on Park St. just south of Ogg Hall. Banged up a bunch of trucks, never seemed to hurt the bridge any. Dunno if the new bridge is up to the old standards. Been here a year and don't think we've had anything happen over ther...
by w9wi
Sat Mar 01, 2008 1:02 am
Forum: Everything else
Topic: Oversized crane in tunnel crash caught on tape
Replies: 10
Views: 1024

Re: Oversized crane in tunnel crash caught on tape

http://wbztv.com/local/I.90.connector.2.665283.html I am amazed that some people can dress themselves. Now who wants to go drive in that lovely tunnel after this? I know I dont! Heck, that used to happen all the time in Madison, under the railroad bridge on Park St. just south of Ogg Hall. Banged u...
by w9wi
Sat Feb 23, 2008 9:51 am
Forum: TV Engineering
Topic: 8VSB Consumer Modulator
Replies: 2
Views: 1113

Re: 8VSB Consumer Modulator

German amateurs have been experimenting with DTV. http://www.datv-agaf.de/ (most of the site in German but there are English translations interspersed and a button that's supposed to translate the rest of the page) They seem to have come up with two boards: a MPEG encoder (which will accept NTSC ana...
by w9wi
Mon Feb 18, 2008 10:11 am
Forum: Digital Television
Topic: A Bunch Of Questions
Replies: 5
Views: 1006

Re: A Bunch Of Questions

Doug, first of all thank you for the response. I am seeing WMLW on 58-2 which would explain alot. Batman never looked so good. There is audio on the rest of the WMVS subcarriers but they are transmitting video from the National Weather Service... satillite images and some of the graphics I see from...
by w9wi
Mon Feb 18, 2008 10:00 am
Forum: Digital Television
Topic: 366 Days and counting
Replies: 4
Views: 819

Re: 366 Days and counting

really to be determined. I haven't seen if Amateur Radio gets any of it, but I tend to doubt we will. No, none of the 700MHz spectrum will be going to amateur radio. 24MHz of the "upper 700MHz band" (channels 60-69) are going to public safety; the rest is being or has been auctioned. 6MHz (channel ...
by w9wi
Sun Feb 17, 2008 11:43 am
Forum: Digital Television
Topic: A Bunch Of Questions
Replies: 5
Views: 1006

Re: A Bunch Of Questions

I am wondering why the picture is so clear for stations that I normally get poor reception on? The analog signal for LP WMLW is usually grainy and hard to pick up (read tin foil on the rabbit ears) but the digital signal is crystal clear. Are the digital broadcasts higher power? Same goes for WITI....
by w9wi
Mon Feb 11, 2008 8:27 am
Forum: Everything else
Topic: SX Love For Sammy...
Replies: 17
Views: 2553

Re: SX Love For Sammy...

Strangely enough, even this TV guy has one of these:
Image
by w9wi
Fri Feb 08, 2008 12:24 am
Forum: Ham Radio
Topic: Ham Engineers, sign in please!
Replies: 103
Views: 28569

Re: Ham Engineers, sign in please!

Welcome, Mike! Y'all OK over in TN? Kind of nasty weather you had! DAH di DAH Tired but fine. No damage (not even broken twigs in the driveway) here. We did have a tornado aloft about a mile south of the TV station & the winds brought down a 12" tree across the road. Obviously it was a LOT worse ab...
by w9wi
Fri Feb 08, 2008 12:17 am
Forum: Digital Radio
Topic: NAB requests increase in IBOC power
Replies: 29
Views: 3700

Re: NAB requests increase in IBOC power

Effectively yes - the current injectors (analog+digital hybrid combiners) are typically 10dB. That is 10dB loss from digital input to antenna output and nominally .5dB from analog input to antenna output. Thus, with current requirements, a 10kW analog TPO would require 11.111kW of analog power (wit...
by w9wi
Thu Feb 07, 2008 8:48 am
Forum: Ham Radio
Topic: Ham Engineers, sign in please!
Replies: 103
Views: 28569

Re: Ham Engineers, sign in please!

BroadcastDoc wrote:Welcome, Mike!
by w9wi
Wed Feb 06, 2008 11:26 am
Forum: Digital Radio
Topic: NAB requests increase in IBOC power
Replies: 29
Views: 3700

Re: NAB requests increase in IBOC power

I picked Doc to quote, rather than Doug or Kent, but all raise good points. (Thanks for the info! I composed a reply to Kent's reply but inadvertently saved it as a draft instead of posting - can't figure out how to retrieve the draft :oops: - and glad I couldn't as you've pretty much answered what...
by w9wi
Tue Feb 05, 2008 11:52 am
Forum: Digital Radio
Topic: NAB requests increase in IBOC power
Replies: 29
Views: 3700

Re: NAB requests increase in IBOC power

Isn't this increase going to be rather difficult for a lot of stations to implement? I'm in TV - radio is just a hobby - so maybe I'm misunderstanding something here - but aren't most IBOC stations using high-level combining? I read a paper about the CBC's tests in Toronto and Peterborough which ind...