[aprssig] HF APRS igates on fldigi

Joe Della Barba joe at dellabarba.com
Tue May 12 11:11:38 EDT 2020


I think that was me.I am going to try again today if I can. I was 
centered on 1700 Hz. I could see the data going out, it sends the RSID, 
a gap, and then the text. Maybe I need more power, I was sending at 
about 20 watts. :)

73 Joe N3HGB

On 5/11/2020 3:03 PM, Stephen H. Smith wrote:
> On 5/11/2020 10:45 AM, Joe Della Barba wrote:
>> I was sending on 60 and 30 meters earlier this morning as N3HGB-8. 
>> Nothing showed up on APRS.FI darn the luck!
>>
>>
>> Joe N3HGB
>>
>>
>> _______________________________________________
>> aprssig mailing list
>> aprssig at lists.tapr.org
>> http://lists.tapr.org/mailman/listinfo/aprssig_lists.tapr.org
>
>
> Around 09:01 EDT (1301 UTC), I copied these RSID transmissions without 
> any following traffic.  Do these look like the times you tried?
>
>
>   Before RSID: <<2020-05-11T13:01Z MFSK-16 @ 5403500+1700>>
>
>   Before RSID: <<2020-05-11T13:08Z MFSK-16 @ 5403500+1700>>
>
>   Before RSID: <<2020-05-11T13:08Z MFSK-16 @ 5403500+1700>>
>
>   Before RSID: <<2020-05-11T13:09Z MFSK-16 @ 5403500+1700>>
>
>   Before RSID: <<2020-05-11T13:13Z MFSK-16 @ 5403500+1700
>
>
>
> What kind of transceiver were you using?
>
> What exact "dial frequency were you on?
>
> Were you on USB?  (Most ham transceivers try to default to LSB below 
> 10 MHz, and must be overridden to USB.)
>
> Was the center frequency of the cursor in the FLdigi waterfall exactly 
> on 1700 Hz?
>
> Did you see your transmitted string appear in the upper (buff-colored) 
> window of FLdigi?
>
> Were you trying to send from a KISS-linked APRS application, or did 
> you just hand-enter a string directly into FLdigi?
>
>
>
>
> The RSID mode ID sent before the actual transmission is very reliable 
> and will often be decoded even when the actual transmission on MFSK16, 
> PSK63, etc fails to decode.  This could happen if the radio frequency 
> of the radio, or the audio tones in FLdigi are off.
>
> ___________________________________________________________
> Stephen H. Smith    wa8lmf (at) aol.com
> Skype:        WA8LMF
> EchoLink:  Node #  14400  [Think bottom of the 2-meter band]
> Home Page:          http://wa8lmf.net
>
> -----   NEW!    60-Meter APRS!   HF NVIS APRS Igate Now Operating ------
>    <http://wa8lmf.ddns.net:14447/>
>
>
>
> Live Off-The-Air APRS Activity Maps
>    <http://wa8lmf.net/map>
>
> Long-Range APRS on 30 Meters HF
>    <http://wa8lmf.net/aprs/HF_APRS_Notes.htm>
>
>
>
> You MUST be within 20-30 Hz of the correct frequency for a successful 
> decode to happen. This includes the total of any error in both the RF 
> frequency and the audio frequency in FLdigi.
>
>
>



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