[OZAPRS] 80m on thursday night

[G T & C A Beagley]

OK Hamish, you are quite correct. But if you are netting to the same 
signal using upper sideband instead of lower sideband then the tx tones 
are still in the same place. If the mark and space designated 
frequencies are in band then it doesn't matter if you use USB or LSB. 
Only the dial readout changes. This is why the designated frequencies 
pair should be quoted for aprs and not the dial frequency.
On 10mhz the frequencies are 10.149.2 and 10.149.4
Just what are your designated frequencies on 80m?
Maybe they are too close to the novice band edge anyway?
I have noticed that Australian aprs stations tend not to quote the 
frequency pairs but rather quote the dial frequency.

Graham

ZL1GTB


Hamish Moffatt wrote:
> Then your 10MHz space is 10194.4 kHz, 600 Hz from the band edge which
> should be OK.
> 
> But 3626.91 kHz - 2100 Hz is 3624.81 kHz, too close to the novice
> band edge at 3.625 kHz, as Scott (VK7HSE) said. (Sidebands on the mark 
> tone would be out of band.)
> 
> On Sun, Oct 03, 2004 at 01:25:43PM +1200, G T & C A Beagley wrote:
> 
>>My tones are 2100/2300 on an AEA DSP2232.
>>According to www.aprs.net, on 10mhz the mark freq is 10.149.2 giving 
>>dial freq of 10.151.5 LSB.
>>Things would be much easier of course if the standard APRS frequencies 
>>were not so darned close to band edges and were clear of interfering 
>>stuff like Fax.
> 
> 
> 
> Hamish


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