DRM Software Radio Forums  

Go Back   DRM Software Radio Forums > DRM Software Radio - User Forums > General Topics
User Name
Password
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-08-2006, 09:36   #1
dk8cb
Roland
 
Join Date: Mar 2004
Location: Munich, Germany
Posts: 2,748
AM IBOC in the US, its shortcomings and how they came about

Hi all,

Radio World Online has an interesting commentary about the US IBOC system and its shortcomings and how they came about. Read the article here. Thanks to radiointel.com for the link.
In the commentary, DRM is mentioned as a possible alternative to IBOC for the US but I doubt that the commercial AM broadcasters in the US will jump on as it would mean that they could no longer be received on current AM receivers.

Roland
dk8cb is offline   Reply With Quote
Old 13-05-2013, 19:27   #2
tpreitzel
Registered User
 
tpreitzel's Avatar
 
Join Date: Apr 2012
Posts: 2,525
Although this thread is old and refers to AM IBOC, it's still appropriate to show the consequences on the AM & FM bands of the FCC's acceptance of a bride * to force this IBOC garbage on the American people. Take a good look and wince ...



http://imageshack.us/photo/my-images...sidebands.png/

* An error which should have been the word, bribe, instead of bride. However, I like the analogy of a bride in this particular case.

Last edited by tpreitzel : 14-05-2013 at 04:28.
tpreitzel is offline   Reply With Quote
Old 10-09-2013, 09:46   #3
tpreitzel
Registered User
 
tpreitzel's Avatar
 
Join Date: Apr 2012
Posts: 2,525
Pai Wants to "Save" AM

With all due respect, the FCC needs an engineer as commissioner. Maybe, the USA wouldn't be saddled with IBOC if the latter requirement was enforced.

I have two suggestions for improving MW's acceptance in the USA:

1. Remove iBiquity's monopoly on digital broadcasting on the MW and FM bands in the USA by allowing Digital Radio Mondiale and other digital standards to compete with IBOC on these two bands. Why not encourage digital formats as used in VOA's radiogram as well?

2. Mandate the FCC Commissioner be an engineer, not an attorney.

If Pai pushes IBOC, then the MW band will wither even faster. Every weekday, my hybrid LPAM broadcast consists of MFSK-32 mixed with analog audio. It would certainly be nice and convenient for listeners and viewers if manufacturers incorporated decoding of MFSK-32 and MFSK-64 into their receivers along with displays capable of decoding images broadcast in those formats. In one of the comments to the article below, a reader mentioned that they'd prefer to READ news rather than hear it which a digital mode would enable.

http://www.nytimes.com/2013/09/09/us....html?hp&_r=2&

Last edited by tpreitzel : 10-09-2013 at 10:25.
tpreitzel is offline   Reply With Quote
Old 10-09-2013, 18:38   #4
F1BJB
Registered User
 
Join Date: Dec 2012
Location: Beauvais France JN19BL
Posts: 631
Interesting link thanks.
Readers comments are nice too.
I believe the use of medium wave AM is very different in the US and in Europe
Here it is very little used at home but much more when travelling in a country with a different
language.
Consequently car radios are the only decent AM receivers still available
And a 50KW station is a low power one.
Far away reception is only possible at night and spending it in the car isn't ideal .
In case of flood bringing the car radio on the roof can be a problem too
I think in case of emergency good AM and FM battery operated radios is important.
And for a country whose future once depended on the voice of general De Gaule on the BBC
we are rather short minded.

Last edited by F1BJB : 10-09-2013 at 23:24.
F1BJB is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is On
Forum Jump


All times are GMT. The time now is 15:41.


Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.