[OZAPRS] HF Configuration.

[Andrew McDade]

Hi Dick,

Im curious to know what you mean by a regular smart beacon rate? .. If you

mean the default settings, or close to that , of a TT3, then you could see

beacons as often as once every 10 seconds if the HF mobile station is 
traveling through very winding terrain. Is this ok for HF ? What do others

think ?  As far as HF paths go on 30m .. Basically from my experiences,
when 
the band is open, you'll get your 300bps frames through, nearly 100
percent 
of the time with power levels of 10-50watts. . When the band is shut, well

then it doesn't really matter how often you beacon does it ?  30m appears
to 
be one of those bands that either works well or doesn't work at all.

Regards ,, Andrew .. VK5EX


----- Original Message ----- 
From: "VK7DIK" <vk7dik at dodo.com.au>
To: <ozaprs at aprs.net.au>
Sent: Thursday, April 12, 2007 5:22 PM
Subject: [OZAPRS] HF Configuration.


>
>
> Hi All,
>
>
>       I have been watching the HF parameter discussion with interest. I 
> would like to
> add my thoughts to the mix. As I understand it all HF base stations 
> basically are receive only feeding the NET/VHF. I hope this is correct
as 
> this is what I interpreted from the information I got from various WEB 
> sites explaining HF APRS use. No arguments from me here. So onto mobile
HF 
> stations. To my way of thinking at any given time there really are not
too 
> many mobile stations driving around with HF on board. Band conditions
are 
> not the best so I believe a reasonable smart beacon rate is justified so

> that the maximum possibility exists for the HF mobile station being
heard 
> and relayed onto the NET/VHF. Lets face it, as with VHF APRS its nice to

> see all the base stations on the map but I for one am much more
interested 
> in seeing mobile station. I belive a regular smart beacon rate is 
> justified and should be used at all times. When the band conditions 
> improve we may need to make changes but for now, more is better.
>
>
> Cheers, Dick.
> VK7DIK
>
> Please Note.
> My e-mail address at home is vk7dik at dodo.com.au and work is 
> dick.vanbeek at zinifex.com
> If your address book do not have these then please change it.
>
>
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