[aprssig] Net28

[Stephen H. Smith]

G0JXN Jim wrote:
> Hi Guys
>  
>
>  
> Net28
>  
> The operating parameters for the channel will be the same as that for 
> Net14 and are laid out in full on www.net14.org.uk 
> <http://www.net14.org.uk> on the Project Setup page. The main points 
> being as follows:-
>  
> 1. Frequency. 28.140 MHz SSB/LSB. This is the dial setting for KAM 
> tones. For PK-232 tones (AGWPE) add 510Hz. The frequency has been 
> chosen to make it easy to remember by association with the Net14.

I think you should consider expressing the frequency in question in 
terms of it's USB equivalent.  

    * LSB operation is almost unheard of on 10 meters (at least in North
      America).

    * All radios default to USB mode on this band. Many require multiple
      button pushes or menu levels to switch to the non-default LSB.

    * Nearly all  commercial, marine, and military-surplus SSB radios
      (that hams sometimes acquire second hand) ONLY operate on USB.


Or better yet, specify the actual RF mark/space freqs so that users with 
devices that have odd tone pairs such as the TigerTronics TigerTrack 
(1100/1300 Hz audio tones),   or fully variable tones (such as the MixW 
soft modem on packet),   can calculate what RF freq [USB or LSB] to use.  

Note further that the paid-for "Pro" version of AGWpe can use standard 
KAM tones (1600/1800).   


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--

Stephen H. Smith    wa8lmf (at) aol.com
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