MSK modem chip

[Mebart]

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

 

[Donna and Ian]

Mebart <> wrote:

I'd like something simple, like the old (discontinued) MX614 chip.

The MX614P is available at http://www.glitchbuster.com

--
Ian Stirling, G4ICV, AB2GR, Long Valley, New Jersey, USA.
Email address is not valid: contact details are on that
domain's web site.

 

[John Larkin]

On Tue, 28 Jun 2005 15:46:32 -0400, Mebart <> wrote:

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

Try MSM7512. But it's old Bell 201 fsk, not msk.



John

 

[Mebart]

Thanks John, but the 7512 is a 1200 baud modem.

I need 2400 baud.

Also, I can't use any Bell standard types as the modern ones all have
compession built in. While the compression might be able to be turned
off, the Bell Standard frequencies are not compatible.

I need a NON Bell standard chip.

Thanks,

Art


On Tue, 28 Jun 2005 13:39:46 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Tue, 28 Jun 2005 15:46:32 -0400, Mebart <> wrote:

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

Try MSM7512. But it's old Bell 201 fsk, not msk.



John

 

[Tim Wescott]

Mebart wrote:

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

Please do a web search on "multiple post" and "cross post". Then don't

multiple post.

(this _is_ an appropriate subject for cross-posting on the two
newsgroups that I found it -- how many others did you drop it into?).

--
-------------------------------------------
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

 

[Mebart]

Thanks all, one of the PIC list readers came through with the answer.

GL to all.

On Tue, 28 Jun 2005 17:17:45 -0400, Mebart <> wrote:

Thanks John, but the 7512 is a 1200 baud modem.

I need 2400 baud.

Also, I can't use any Bell standard types as the modern ones all have
compession built in. While the compression might be able to be turned
off, the Bell Standard frequencies are not compatible.

I need a NON Bell standard chip.

Thanks,

Art


On Tue, 28 Jun 2005 13:39:46 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Tue, 28 Jun 2005 15:46:32 -0400, Mebart <> wrote:

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

Try MSM7512. But it's old Bell 201 fsk, not msk.



John