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Re: LF: 472 tonight

To: [email protected]
Subject: Re: LF: 472 tonight
From: [email protected]
Date: Thu, 29 May 2014 18:29:24 +0000
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Hi!

OK, that was highly enlightening :-)


So then, is threre a way to express the not so irrelevant difference between A2A unkeyed carrier and A2A keyed carrier using the current abbreviation rules? :-)

Gruess

Paul-Henrik, OH1LSQ








way to convey the not so unrelevant information regarding keyed/unkeyed carrier
Quoting Clemens Paul <[email protected]>:

Isn't the mode most NDB's use called A3A (tone modulation with
continuous carrier).
No. :-)

A2A indicates that the carrier is keyed together with the tone
modulation so there is no continuous carrier for easy
direction finding.
No. :-)

See
http://en.wikipedia.org/wiki/Types_of_radio_emissions#Type_of_modulation

for further detailed information.

73
Clemens
DL4RAJ



-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of [email protected]
Sent: Thursday, May 29, 2014 6:33 PM
To: [email protected]
Subject: Re: LF: 472 tonight

Hi!

Isn't the mode most NDB's use called A3A (tone modulation with
continuous carrier).

A3J again is "voice AM", continuous carrier modulated by speech or
similar non-digital information such as music.

A2A indicates that the carrier is keyed together with the tone
modulation so there is no continuous carrier for easy
direction finding.



Correct me if I'm wrong, I'm curious since have tried to figure out
how the mode designations really work.



BR

Paul-Henrik, OH1LSQ


Quoting Clemens Paul <[email protected]>:

A2A (or tone modulated AM)
Just what most NDBs are using.

73
Clemens
DL4RAJ

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Rik Strobbe
Sent: Thursday, May 29, 2014 3:18 PM
To: [email protected]
Subject: RE: LF: 472 tonight

Hi Stefan,

A2A (or tone modulated AM).

73, Rik  ON7YD - OR7T

________________________________________
Van: [email protected]
[[email protected]] namens DK7FC
[[email protected]]
Verzonden: donderdag 29 mei 2014 13:08
Aan: [email protected]
Onderwerp: Re: LF: 472 tonight

MCW ???
What is that?
73

Am 29.05.2014 12:07, schrieb John Rabson:
If you are going in for nostalgia, should you perhaps using
MCW in that band?
73
John  F5VLF

On 29 May 2014, at 12:00, C. Groeger<[email protected]>  wrote:


Hi Pete,
Thanks for fine report!
Here H bridge directly on mains and lw Ant 300 m long.

Have some big GU81 tubes here and maybe you will hear them
soon on MF  :-)
QRS is no problem, can use straight key if you want to join, Pete!

73, df5qg

Christian Groeger

M0FMT<[email protected]>  schrieb:


Hi Stefan es Christian (DK7FC es DF5QG)

Thanks for a good evening lighting up 472. You were 599C
Christian 599 at times never lost you once 10:15 to 11:10 PM
UK time. CW too fast for me though not to mention the
Deutsch... hee.
RX here ts690s new antenna up 14m x 80m long sloper un-tuned.

Interesting signal from you. What was the sender?

73 es GL Pete M0FMT









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