[OZAPRS] TT3 - HF Version and TNC-X now in stock

[Richter, Mike W]

I just checked the MX614 Data Sheet

It only does 1200/2200Hz tones so it is unusable for HF.

Components above 3400Hz are -33dB.

Mike VK2BMM

-----Original Message-----
From: Darryl Smith [mailto:Darryl at radio-active.net.au]
Sent: Tuesday, 30 March 2004 05:57 am
To: ozaprs at marconi.ics.mq.edu.au
Subject: RE: [OZAPRS] TT3 - HF Version and TNC-X now in stock


Not sure of the purity... And I think it is 1600 and 1800 Hz... 

Darryl

---------
Darryl Smith, VK2TDS   POBox 169 Ingleburn NSW 2565 Australia
Mobile Number 0412 929 634 [+61 4 12 929 634 International] 
www.radio-active.net.au - www.radio-active.net.au\web\tracking
 

-----Original Message-----
From: ozaprs-bounces at marconi.ics.mq.edu.au
[mailto:ozaprs-bounces at marconi.ics.mq.edu.au] On Behalf Of Chris Hill
Sent: Tuesday, 30 March 2004 12:33 AM
To: ozaprs at marconi.ics.mq.edu.au
Subject: RE: [OZAPRS] TT3 - HF Version and TNC-X now in stock

Hi Darryl,

I gather the two tones for the 300 Baud AFSK are produced via the standard
4
bit resistive ladder.

Do you have any specification for the purity of the generated tones?  ie,
what is the audio S/N ratio?

Also, what tone frequencies are used?  (1600 & 1800?)


73 Chris vk6kch


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