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[aprssig] APRS Messenger now has APRS over PSK-63

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sun Feb 28 19:14:31 UTC 2010


Pop the $$$ and get the AGEPE PRO version.  It will do KAM tones 
natively and the dial frequencies line up.  That's what I'm running as 
KJ4ERJ-1 (my APRSIS32 client talking AGW to AGWPEpro and TEXT to APRS 
Messenger).  APRS Messenger is running as KJ4ERJ-15, but is receive-only 
until I can get a 30m antenna put up.

Lynn (D) - KJ4ERJ - IGating AX.25 and PSK-63 APRS in Palm Bay, FL

Chris Moulding wrote:
> Frank,
>
> The 2100 Hz tone frequency was designed to work in conjunction with 
> KAM tones of 1600 and 1800 Hz. To be compatible with PK-232 and AGWPE 
> tones the PSK audio would have to be 2600 Hz.
>
> I can compile a version with a 2600 Hz PSK output if your transceiver 
> SSB filter can pass that audio frequency.
>
> Let me know if will and I'll add that tone frequency to the available 
> options.
>
> 73,
>
> Chris, G4HYG
>
> Chris Moulding
> Cross Country Wireless (2009) Ltd
> 7 Thirlmere Grove, Bolton, Lancs, BL4 0QB, UK
> Tel/fax: +44(0)1204 410626
> Mobile:  +44(0)7752 391908
> Website: http://www.crosscountrywireless.net
> Company number 6780346 registered in England and Wales 
>
>
> Frank or Barbara Rossi wrote:
>> Trying to get APRS Messenger and UI-View using the AGW Packet engine 
>> APRS dial frequencies to line up.
>> Currently using the 2100 Hz version of APRS Messenger with the dial 
>> set at 10.1476 on USB.
>> Several stations and I have exchanged messages, works great.
>> I figure if I could get the dial frequencies to line up, I could 
>> I-Gate AX25 APRS and PSK-63 APRS at the same time,
>> same radio and same computer.
>> The AGW Packet engine will only decode tones 2100/2300.
>> With dial set at 10.1476 on USB AX25 tones are to low to decode 
>> without changing dial frequency, and then PSK-63 APRS is off frequency.
>>
>> Should I be using a different version of APRS Messenger to get the 
>> tones to line up ?
>> Also What would the dial frequency and USB/LSB be ?
>>
>> What would the dial frequencies be for the different versions of APRS 
>> Messenger ?
>> I figure all versions are compatible with each other with different 
>> dial settings ?
>> Thanks
>> N3FLR - Frank
>>
>>
>> On 2/18/2010 5:20 AM, Chris Moulding wrote:
>>> I've released the latest version of the APRS Messenger v 2.26 program.
>>>
>>> The biggest change is that APRS over PSK-63 has been added. This has 
>>> been tried
>>> before with an add-on to UI-View but that had problems sending 
>>> packets with
>>> errors to the APRS-IS system. I've added a preamble, start and stop 
>>> flags and a
>>> strong checksum to each packet so that each received packet is 
>>> checked as correct
>>> before being sent to the internet.
>>> The display will show all packets received even with errors so that 
>>> weak signals
>>> can still be read manually. A frequency hopping routine has been 
>>> added to the PSK-63
>>> receiver to allow rapid signal acquisition over a +/- 50 Hz range. A 
>>> Tune option
>>> allows the operator to send a carrier + 150 Hz in frequency to avoid
>>> interference to other APRS over PSK-63 users. The program uses the 
>>> PC soundcard
>>> in a similar way to other digimode programs.
>>>
>>> The program comes in three versions with different PSK-63 audio tone
>>> frequencies, 700, 1300 and 2100 Hz.
>>>
>>> The second change is the addition of a receive only Igate. All HF or 
>>> VHF packets
>>> received can be sent to the APRS-IS. If the connection to the APRS 
>>> server is
>>> lost it automatically retries 1 minute later.
>>>
>>> Future developments will include a GPS option for mobile HF tracking.
>>>
>>> If you want to try APRS over PSK-63 on HF I'm running an Igate on 
>>> 10.1497
>>> MHz. Set your receiver to a dial frequency of 10.1476 MHz USB with 
>>> the 2.1 kHz
>>> version. Please note that the dial frequency is the same as used for 
>>> existing HF
>>> 300 bd packet APRS so it will work with existing HF APRS set-ups. In 
>>> the US
>>> Lynn KJ4ERJ is also running an APRS over PSK-63 Igate on 10.1476 MHz.
>>>
>>> The software is freeware and can be downloaded from the following 
>>> webpage:
>>>
>>> http://www.crosscountrywireless.net/aprs_messenger.htm
>>>
>>> A Yahoo group for discussion on this and other topics:
>>>
>>> http://uk.groups.yahoo.com/group/cross_country_wireless
>>>
>>> See you on the waterfall!
>>>
>>> 73,
>>>
>>> Chris, G4HYG
>>>
>> ------------------------------------------------------------------------
>>
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