In a message on Friday 11-16-17 Ed Vance said to Holger Granholm:
GE Ed,
EV> No need to apologize for making a comment, these BBS Echos are the
EV> same as a Amateur Radio ROUNDTABLE on 80 Meter AM. afaik (as far as
EV> I know)
Yeah I know.
HG> Those old Digibox channels are now called analog and are still
HG> available on modern TV sets, along with true digital and HD channels.
EV> If the Digibox signal are Digital, calling them Analog would sound
EV> strange to me.
It DOES to me too!!
HG> In most cases when the digital/HD signal becomes too weak to give a
HG> picture, the sound also disappears. In rare cases there may be sound.
I'm not usually looking at the "analog" channels because the aspect
ratio is not correct, so I don't know how the sound behaves with weak
signal.
EV> This new fangled stuff we just have to get adjusted to, don't we?
Yes I have.
HG> There's no special test equipment needed, except a signal generator
HG> that can give a digital TV signal, ....
EV> I didn't know He only needed to get a Digital TV SigGen to work on
EV> the newer gear.
No one expects you to know it, but your friend should have known.
EV> was inside of a TV Set, except for taking some 7 Pin and 9 Pin Tubes
EV> out and taking them somewhere there was a Tube Tester.
Tube testers were out long before production of tube TV's ceased.
A TV-service shop usually had a stock of new tubes, so it was easier to
plug in a new one into the socket of a suspect one.
A mobile service enginer also had a stock of new tubes in his tool box.
EV> The TV Sets I have now only have One Tube in them, the Picture Tube.
I don't have any TV sets with tube's. The monitor I'm using for the BBS
is the only one with a picture tube.
EV> Have You noticed if there any lapses or delays to the transmission
EV> that You are listening to when You're using any of those Digital
EV> Modes wheather during a QSO or You're SWL'ing the Band?
I am not using any digital modes except A1A (CW) on ham radio!
HG> What I have noticed is that the more compressed a TV-signal is, the
HG> more is the time delayed. Finnish TV hasn't noticed that or corrected
HG> it, but swedish TV has.
73 de Sam, OH0NC
aka Holger
.. It's the best I can do on short notice.
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