On the air easy thanks to the Magic of Direwolf

Scott Currie scott.d.currie at gmail.com
Sun Apr 1 13:05:01 PDT 2018


So Andy sent me a beta of soundmodem that implements the same 2400 QPSK
modem as Direwolf. Here are the results of my same 50K test:

*UZ7HO --> Direwolf QPSK 2400:*

*** Calling WA7AUB
*** Connected to WA7AUB at 2018/04/01 19:52:33

;FW: WA7AUB AUBURN-EOC
[RMS Express-1.5.11.4-B2FHM$]
NS7C DE WA7AUB >
   ;FW: NS7C WA7AUB
   [RMS Express-1.5.11.4-B2FHM$]
   ; WA7AUB DE NS7C (CN87WH)
   ;PM: WA7AUB C6QVTBKBN2Z1 50684 NS7C FW: MAXFRAMES 7 - 50K Attachment
   FC EM C6QVTBKBN2Z1 51137 50684 0
   F> B2
FS Y
*** Sending C6QVTBKBN2Z1.
FF
*** Completed send of message C6QVTBKBN2Z1
*** *Sent 1 message.  Bytes: 51129,  Time: 03:59,  bytes/minute: 12824*
   FQ
*** --- End of session at 2018/04/01 19:56:48 ---
*** Messages sent: 1.  Total bytes sent: 51129,  Time: 04:15,
bytes/minute: 12018
*** Messages Received: 0.  Total bytes received: 0,  Total session time:
04:15,  bytes/minute: 0
*** Disconnecting

It went with zero rejected frames.

-Scott

On Fri, Mar 30, 2018 at 5:00 PM, Scott Currie <scott.d.currie at gmail.com>
wrote:

> Real world test using Winlink Express. Same message with a 50K attachment
> sent peer to peer with both UZ7HO and Direwolf over the same hardware.
> Direwolf was noticeably slower just listening to the packets and
> turnaround, and ended a full 1:15 longer.
>
> -Scott
>
>
> *UZ7HO QPSK 4800:*
> *** Calling WA7AUB
> *** Connected to WA7AUB at 2018/03/30 23:30:50
>
> ;FW: WA7AUB AUBURN-EOC
> [RMS Express-1.5.11.4-B2FHM$]
> NS7C DE WA7AUB >
>    ;FW: NS7C WA7AUB
>    [RMS Express-1.5.11.4-B2FHM$]
>    ; WA7AUB DE NS7C (CN87WH)
>    FC EM D935QP3CZNYM 50935 50639 0
>    F> B1
> FS Y
> *** Sending D935QP3CZNYM.
> FF
> *** Completed send of message D935QP3CZNYM
> *** *Sent 1 message.  Bytes: 51084,  Time: 03:00,  bytes/minute: 16995*
>    FQ
> *** --- End of session at 2018/03/30 23:33:57 ---
> *** Messages sent: 1.  Total bytes sent: 51084,  Time: 03:06,
> bytes/minute: 16441
> *** Messages Received: 0.  Total bytes received: 0,  Total session time:
> 03:06,  bytes/minute: 0
> *** Disconnecting
>
> *Direwolf QPSK 4800:*
> *** Calling WA7AUB
> *** Connected to WA7AUB at 2018/03/30 23:46:15
>
> ;FW: WA7AUB AUBURN-EOC
> [RMS Express-1.5.11.4-B2FHM$]
> NS7C DE WA7AUB >
>    ;FW: NS7C WA7AUB
>    [RMS Express-1.5.11.4-B2FHM$]
>    ; WA7AUB DE NS7C (CN87WH)
>    FC EM 80GC2ZYW1H5F 50935 50639 0
>    F> DE
> FS Y
> *** Sending 80GC2ZYW1H5F.
> FF
> *** Completed send of message 80GC2ZYW1H5F
> *** *Sent 1 message.  Bytes: 51084,  Time: 04:15,  bytes/minute: 12021*
>    FQ
> *** --- End of session at 2018/03/30 23:50:37 ---
> *** Messages sent: 1.  Total bytes sent: 51084,  Time: 04:22,
> bytes/minute: 11687
> *** Messages Received: 0.  Total bytes received: 0,  Total session time:
> 04:22,  bytes/minute: 0
> *** Disconnecting
>
>
> On Fri, Mar 30, 2018 at 4:16 PM, Scott Currie <scott.d.currie at gmail.com>
> wrote:
>
>> You already know the answer. Which is why UZ7HO is more deployed for end
>> user and Direwolf is more deployed for infrastructure.....
>>
>> -Scott
>>
>> On Fri, Mar 30, 2018 at 4:14 PM, John D. Hays <john at hays.org> wrote:
>>
>>> How many of these are available on non Microsoft Windows operating
>>> systems?
>>>
>>> On Fri, Mar 30, 2018 at 4:11 PM, Scott Currie <scott.d.currie at gmail.com>
>>> wrote:
>>>
>>>> OK, if you want to experiment, then clearly you want to play with UZ7HO
>>>> soundmodem. Between his low speed and high speed versions, the following
>>>> modems are available:
>>>>
>>>> soundmodem:
>>>> AFSK AX.25 300bd
>>>> AFSK AX.25 600bd
>>>> AFSK AX.25 1200bd
>>>> AFSK AX.25 2400bd
>>>> BPSK AX.25 300bd
>>>> BPSK AX.25 600bd
>>>> BPSK AX.25 1200bd
>>>> BPSK AX.25 2400bd
>>>> BPSK FEC 4x100bd
>>>> QPSK AX.25 2400bd
>>>> QPSK AX.25 3600bd
>>>> QPSK AX.25 4800bd
>>>>
>>>> hs soundmodem:
>>>> FSK G3RUH 9600bd
>>>> FSK G3RUH 19200bd
>>>> GMSK AAUSAT4 2400bd
>>>> GMSK AAUSAT4 9600bd
>>>> GMSK BeeSat 2/4 4800bd
>>>> GMSK GOMX1 2400bd
>>>> GMSK GOMX1 4800bd
>>>> GMSK GOMX3 4800bd
>>>> GMSK GOMX3 19200bd
>>>> GMSK LilacSat2 4800bd
>>>> HAPN 4800bd
>>>> Manchester 1200bd
>>>> Manchester 2400bd
>>>> Manchester 3600bd
>>>> Manchester 4800bd
>>>> Manchester 7200bd
>>>>
>>>> That should keep you busy for a while.
>>>>
>>>> On the other hand, I am actually using this stuff not just for
>>>> experimenting, but for EMCOMM drills, exercises, and for the real thing
>>>> should it occur, and need to have compatibility. The EMCOMM community is
>>>> somewhat split on which software TNC to use, with UZ7HO having the edge for
>>>> end user client and Direwolf for infrastructure. Having them not compatible
>>>> means we are stuck for the most part at 1200. Few people have been able to
>>>> get 9600 running reasonably well with off the shelf hardware. 4800 QPSK
>>>> should be easy to make work and is a significant boost from 1200, but if
>>>> there are two (or more) standards, it will not catch on!
>>>>
>>>> -Scott
>>>>
>>>> --
>>>
>>> ------------------------------
>>> John D. Hays
>>> Edmonds, WA
>>> K7VE
>>>
>>>    <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
>>>
>>>
>>> _______________________________________________
>>> seatcp mailing list
>>> seatcp at wetnet.net
>>> http://wetnet.net/mailman/listinfo/seatcp
>>>
>>
>>
>>
>> --
>> *-Scott*
>>
>
>
>
> --
> *-Scott*
>



-- 
*-Scott*
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