I appreciate the further information from both Ralph, ZL1TBG and John,
VE5MU.
PSK125 would not be a very robust mode compared with most other digital
modes, due to the high baud rate and no FEC.
It seems from John's comments that although 141A is not quite as fast,
it is more robust than RFSM
Ralph, could you elaborate on this? (if possible on the pskmail list...)
so we can have a look at what's needed... What are your problems with version
0.3.0?
73,
Rein PA0R
> My tests with PSKmail have slowed somewhat with the changeover to
> fldigi and the extra bells & whistles that have pr
Rick,
Performance compared to other modes:
In terms of throughput on low power (5 watts) NVIS path tested on
80M and 5MHz,
RFSM2400 (nonstandard, 2.7 KHz) was faster than PSK125 and allways
completed the session. PSK63 was difficult due to tight frequency
tolerance (despite commercial spec. g
Ralph,
Could you be a bit more specific when you say that you are having good
results?
How does RFSM2400 compare with other digital modes, particularly in
terms of weak signal performance? And also with high noise levels such
as on the lower bands?
Although I don't have any convenient way of
>
> Being in Oregon, there is little need for Tornado watchers! However, SHOULD
> something like that occur, without having to stay by the radio or terminal
> 24/7, is there a program that allows for or provides ALARMS that are audible
> to alert a network of Packet stations?
>
APRS can easily
I have a question:
Being in Oregon, there is little need for Tornado watchers! However, SHOULD
something like that occur, without having to stay by the radio or terminal
24/7, is there a program that allows for or provides ALARMS that are audible to
alert a network of Packet stations?
To me t
In ZL we are testing RFSM2400 with good results.
The program installs easily and operates easily first time.
Operators can see how progress is during a session - not "left in the
dark"
Server PC can be left unattended and autostart on power up.
These points are important for any application that
It does not seem that 141A is all that robust. Of course it is better
than 300 baud packet so you might be able to use it for daytime
communications, but it seems to fail with moderate QRN on the lower
bands that you would use for NVIS type local communication.
For those of you who use Pactor 2
--- In digitalradio@yahoogroups.com, [EMAIL PROTECTED] wrote:
> We really need to have BBS systems for HF that lets you use a sound
card
> to inexpensively time shift communication. This requires an ARQ mode
> that can get through difficult condx with a full ASCII character set.
> Nothing like t
Considering the number of years I have supported ARES/RACES and Skywarn,
most of the value of amateur radio has been with Skywarn. Yes, we were
heavily involved with the flood of 1965 in the upper Midwest U.S., but
nothing like that since due to infrastructure improvements.
With cellphones ofte
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