Hi Patrick,
Wonder if you happen to know that I created the original (very first)
Weather Radio Alert in 1974, which then created the entire weather alert
radio industry! At that time, there was no SAME feature, so the alarm
went off too often when no bad weather was close by. SAME came along
after I retired.
The key to making the alert reliable was this patented circuit:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=8&f=G&l=50&co1=AND&d=PTXT&s1=4,158,148&OS=4,158,148&RS=4,158,148
<http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=8&f=G&l=50&co1=AND&d=PTXT&s1=4,158,148&OS=4,158,148&RS=4,158,148>
After manufacturing and selling over 3,000,000 radios in 10 years, I
retired and had time for ham radio. DigiPan was the first thing I did
after I retired.
Your support of the weather alert feature means a lot to me! Thanks!
73, Skip KH6TY
On 6/19/2010 4:37 AM, Patrick Lindecker wrote:
/Pour les francophones: la version française de ce message se trouve
sur mon site (http://f6cte.free.fr). Il suffit de cliquer sur le lien
"_Principales modifications (courriel avertissant de la sortie de la
nouvelle version)_"./
Hello to all Ham and SWL,
The new release of *MultiPSK (4.18)* is on my Web site
(http://f6cte.free.fr <http://f6cte.free.fr>). It is not yet on Earl's
and Terry's WEB sites.
**
*The main modifications of MULTIPSK 4.18* are the following:
*
1) Decoding of the NWR SAME mode
*
NWR (National Weather Radio) SAME (Specific Area Message Encoding) is
simply a method of identifying the local area to which an alert
message applies. It utilizes a digital data stream that contains the
alert message with information about the type of event expected, its
timing, duration, and location. The NWR SAME system is used in USA and
Canada, in VHF (162.400, 162.425, 162.450, 162.475, 162.500, 162.525,
162.550 MHz).
_
To listen NWR SAME messages: the NWS tests the NWR and SAME alerting
technology weekly. These tests normally occur on Wednesday between 10
AM and Noon with some variations to accomodate local requirements.
This mode is available for licencied copies, only (otherwise, the
decoding is stopped after 5 minutes).
See specifications further on.
*
2) Transmission/reception of ARQ FAE QSP (indirect) mails through a
"mails Server"
*_
Differences between a direct mail and a QSP mail (indirect)
_
A mail is direct if you can transmit it directly to the final
addressee: A -->B.
If you can't transmit the mail directly because the final addressee
can't be directly reached due to the link conditions, the mail can be
forwarded by the connected station, which acts as a "mails Server":
A-->C (mails Server)-->B.
For this, you must use a QSP mail.
A paper based on snapshots presents this new system:
*
http://f6cte.free.fr/QSP_mails_forwarding_easy_with_Multipsk_in_ALE_and_ALE400.doc
**
3) New macros:
*
- *<RPRT@>* permits to ask to the other Ham or to the SWL monitoring
your QSO to send you a reception report by e-mail. Your address must
be specified in the "WEB ADDRESS" of your personal data ("Personal"
button). It will be transmitted the following command "r...@lenemail
addressCRC" which is the report demand. If correctly decoded, a
reception report will be transmitted to the e-mail address that you
specified, through Internet.
_
Examples of use of this macro
_
1) The main objective is to ask the other Ham with whom you are in QSO
to send you a reception report by e-mail.
2) But it can be also done by a SWL monitoring your QSO.
3) This macro can be used in conjuction with a Multipsk beacon which
mode can be controlled by a RS ID. For example, you can switch the
beacon in BPSK31 and asks the beacon for a reception report.
Afterwards, the beacon can be switched in Olivia by a new RS ID and a
new reception report can be asked...
__
_Note:_ this macro can be used for all digital modes (except JT65), CW
included.
A paper based on snapshots presents this new system:
*
http://f6cte.free.fr/How_to_use_the_« RPRT@
»_email_reception_report_with_Multipsk.doc
*__
_The source code_ (in Pascal/Delphi and in English) to code/decode
this command is available for the coding/decoding software
developpers, by making the demand to F6CTE by e-mail.
- <*TUNE:command*> permits to send a Tune (non modulated carrier) with
the command: <TUNE: Power (in % from 0 to 100) Frequency (in Hz from 0
to 5000) Duration (in 1/10 sec from 1 to 999)>. For example: <TUNE: 5
4000 10> (5% of power at 4000 Hz for 1 sec)
This function can be used for transmission tests or, perhaps, to
create his/her personal "jingle" (short musical sequence).
- <*S/N*> gives the Signal to Noise ratio (in dB) obtained about 4
seconds before the switching to transmission.
- <*Quality*> for PSK modes only, gives the signal quality from 1/5 to
5/5 obtained about 4 seconds before the switching to transmission.
**_
_*4) Improvements*_
_ _
_Addition of a filter possibility in the SELCAL mode.
_
_Addition of 6 new memories of frequency and mode in the Transceiver
window, for a total of 10 memories.
_
____
__Some improvements for contesters_: addition of a manual control of
the QSO number, proposition of standard HF QRGs for the "Freq MHz"
field, possibility to double the size of the "QSO->log" or "DXKeeper"
buttons (in the "Logbook" window). _
_ _
____
__Note about translation of Multipsk.exe and Clock .exe_: the 4.17
version of Multipsk/Clock has been completly translated to Spanish by
Joachin (EA4ZB), from French. The translation file is on my Web site
(http://f6cte.free.fr/Translation_files.htm). _
_ _
_*
NWR SAME (VHF)
*
The NWR (National Weather Radio) SAME (Specific Area Message Encoding)
is a digital system for transmission in USA and Canada, in VHF, of
warning messages. There are, in fact, other agencies that NWS
(National Weather Service) which use the SAME system. There are also
many other messages that warning or watch messages.
_
Description :
_
Baud rate: 580.83.
Modulation : Logic 0 at 1562.5 Hz and logic 1 at 2083.3 Hz
Reception mode: FM
Character set : ASCII characters (8 bits)
Shape of pulse : rectangular
Bandwidth : about 1 KHz
Demodulation : non coherent
Bit synchronization : automatic using the signal
Character synchronization : automatic using predefined strings of
characters (« ZCZC » and « NNNN »)
Lowest S/N: +4 dB
_
Each NWR/SAME message contains:
_
* 3 same digital messages containing (on a coded form) the event, the
concerned areas, duration and broadcast station (for example:
ZCZC-WXR-TOW-039173-039051-139069+0030-1591829-KCLE/NWS-). These
messages are decoded by Multipsk.
* possibly a 1050 Hz warning alarm tone for 8 to 10 seconds,
* possibly a verbal spoken oral text of message,
* 3 digital messages « NNNN » for end of message.
73
Patrick
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