KA3DRR in his blog lists several links devoted to SDR (Software Defined Radio). I think you have to give it a peek as there are many sites you'll be interested into. Thanks Scot for this useful listing.
Wednesday, October 08, 2008
Tuesday, October 07, 2008
SOB VI launch 144.9 MHz
From W4SPA:
The next SOB flight, SOB VI is scheduled for this Saturday, Oct 11, 2008.
Launch will take place at KV4AC's QTH again at approximately 7AM.
The mission profile is designed to be similar to SOB V but we're using a new, larger balloon and are hoping for a little longer flight and to achieve at least 100,000 ft altitude.
The following SOB VI payload upgrades are in progress:
Mission Designator - SOB VI
Callsign - VHF - APRS W4SPA-11, UHF CW - W4SPA BEACON
Scheduled Launch Date/Time: Oct 11, 2008 7:00AM
Mission Profile: flight to burst altitude, descend on parachute
Payload: 2 styrofoam boxes; Primary and Backup
Payload (Primary) - GPS, TNC, VHF Radio (APRS every 30 seconds, telemetry every 60 seconds), Digital camera
Payload (Backup) - UHF Radio - CW-ID/RDF signal every 60 seconds, simplex repeater
Frequencies: VHF (APRS) - 144.990 MHz - Note to monitoring stations - PLEASE TURN OFF DIGI'S! - PLEASE DON'T TRANSMIT!
UHF (simplex repeater) - 446.375 141.3 PL tone - wait for net control to call for check-ins
Ground stations comm: 146.84 (-) repeater
Tactical callsigns: Launch site (launch team) LAUNCH
Notes:
HELP wanted:
If you're interested in participating in any way, we'd like to hear from you. Please reply to this message and let me know. We need as much help as we can get listening for and tracking the balloon's signals. SOB V went exteremly well in large part because there were so many folks listening in. If the APRS system fails for any reason, this could turn into a very challenging fox-hunt.
Check-ins:
We're looking for as many check-ins as we can get via the simplex repeater. We'll start out with local checks while the balloon is ascending. As the radio's footprint increases in size, we'll be concentrating on longer distance stations. Please check-in only after net control calls for check-ins. I will have some "special" QSL cards printed to commerate the event and will QSL all check-ins.
Information for monitoring stations:
We'd really like to maximize the number of stations listening to and tracking (logging) the APRS data on 144.990. Bobby, N4AU is going to configure one of the area digipeaters to relay the balloon's data onto the standard APRS frequency of 144.390 MHz and onto the internet where it will be accessible from FINDU.COM. If you have an APRS station and want to monitor the data on 144.990 (the balloon's frequency) please disable your station's digipeater functions. During the SOB V flight, there were some other stations digipeating our data and as a result sometimes collissions occured resultsing in lost data from the balloon. Also, if you're going to monitor on 144.990 (the balloon's frequency) please don't transmit any APRS packets of your position or APRS messages. My objective is to monitor and log all the APRS and telemetry data directly from the balloon on 144.990 MHz. This data is nesessary in order to evaluate the performance of the flight hardware, the balloon's flight path and is required by many of the national balloon websites as evidence of our flight. There are several web sites that keep track of flight records. Thanks in advance for your cooperation in keeping the frequency open exculsively for the balloon.
Simplex Repeater Operation (sequence of events):
After launch, the launch team and chase teams will verify proper operation of the VHF (APRS and telemetry data) and of the UHF beacon. After a few minutes of ascent, if all is well with the flight hardware, a member of the launch team will make a test call via the UHF simplex repeater to the net controller. Net controller will respond, and once 2-way communication through the repeater is verified, the launch team member will check-in and turn control of the simplex repeater over to the net control station. The SOB VI net control station will be Jim,
N4CIO. Since the simplex repeater will ID every 60 seconds, please keep transmission through it short (20 seconds or less). The net controller will explain repeater operation.
Thank you!
On behalf on the entire SOB Team, I'd like to thank everyone for your assistance and continued support. A special thanks to everyone that provided financial support through bake sale purchases or donations of money or equipment.
73,
Scott Poole, W4SPA
The next SOB flight, SOB VI is scheduled for this Saturday, Oct 11, 2008.
Launch will take place at KV4AC's QTH again at approximately 7AM.
The mission profile is designed to be similar to SOB V but we're using a new, larger balloon and are hoping for a little longer flight and to achieve at least 100,000 ft altitude.
The following SOB VI payload upgrades are in progress:
- a new digital camera taking photos every 30 seconds
- experiments to record temperatures both inside and outside the payload container
- a sensor to detect the 0 G point just after the balloon bursts
- better insulation around the backup radio (last time it froze and stopped working during the flight)
- backup radio battery upgrade (so we can have a "balloon repeater net" to take check-ins during the flight)
Mission Designator - SOB VI
Callsign - VHF - APRS W4SPA-11, UHF CW - W4SPA BEACON
Scheduled Launch Date/Time: Oct 11, 2008 7:00AM
Mission Profile: flight to burst altitude, descend on parachute
Payload: 2 styrofoam boxes; Primary and Backup
Payload (Primary) - GPS, TNC, VHF Radio (APRS every 30 seconds, telemetry every 60 seconds), Digital camera
Payload (Backup) - UHF Radio - CW-ID/RDF signal every 60 seconds, simplex repeater
Frequencies: VHF (APRS) - 144.990 MHz - Note to monitoring stations - PLEASE TURN OFF DIGI'S! - PLEASE DON'T TRANSMIT!
UHF (simplex repeater) - 446.375 141.3 PL tone - wait for net control to call for check-ins
Ground stations comm: 146.84 (-) repeater
Tactical callsigns: Launch site (launch team) LAUNCH
Notes:
HELP wanted:
If you're interested in participating in any way, we'd like to hear from you. Please reply to this message and let me know. We need as much help as we can get listening for and tracking the balloon's signals. SOB V went exteremly well in large part because there were so many folks listening in. If the APRS system fails for any reason, this could turn into a very challenging fox-hunt.
Check-ins:
We're looking for as many check-ins as we can get via the simplex repeater. We'll start out with local checks while the balloon is ascending. As the radio's footprint increases in size, we'll be concentrating on longer distance stations. Please check-in only after net control calls for check-ins. I will have some "special" QSL cards printed to commerate the event and will QSL all check-ins.
Information for monitoring stations:
We'd really like to maximize the number of stations listening to and tracking (logging) the APRS data on 144.990. Bobby, N4AU is going to configure one of the area digipeaters to relay the balloon's data onto the standard APRS frequency of 144.390 MHz and onto the internet where it will be accessible from FINDU.COM. If you have an APRS station and want to monitor the data on 144.990 (the balloon's frequency) please disable your station's digipeater functions. During the SOB V flight, there were some other stations digipeating our data and as a result sometimes collissions occured resultsing in lost data from the balloon. Also, if you're going to monitor on 144.990 (the balloon's frequency) please don't transmit any APRS packets of your position or APRS messages. My objective is to monitor and log all the APRS and telemetry data directly from the balloon on 144.990 MHz. This data is nesessary in order to evaluate the performance of the flight hardware, the balloon's flight path and is required by many of the national balloon websites as evidence of our flight. There are several web sites that keep track of flight records. Thanks in advance for your cooperation in keeping the frequency open exculsively for the balloon.
Simplex Repeater Operation (sequence of events):
After launch, the launch team and chase teams will verify proper operation of the VHF (APRS and telemetry data) and of the UHF beacon. After a few minutes of ascent, if all is well with the flight hardware, a member of the launch team will make a test call via the UHF simplex repeater to the net controller. Net controller will respond, and once 2-way communication through the repeater is verified, the launch team member will check-in and turn control of the simplex repeater over to the net control station. The SOB VI net control station will be Jim,
N4CIO. Since the simplex repeater will ID every 60 seconds, please keep transmission through it short (20 seconds or less). The net controller will explain repeater operation.
Thank you!
On behalf on the entire SOB Team, I'd like to thank everyone for your assistance and continued support. A special thanks to everyone that provided financial support through bake sale purchases or donations of money or equipment.
73,
Scott Poole, W4SPA
source
5J0 San Andres
Dennis K7BV will return to San Andres June 19-July 5, 2009 once again concentrating on 6 meter Sporadic Es. HF bands will be activated as well. Details on www.qth.com/k7bv/caribe2009
Strange Radio Event
Dalla 425dxn mailing list, pubblico volentieri:
Carissimi sottoscrittori
l' EX Direttore di Radio Rivista, Prof. Nicola Sanna I0SNY per motivi del tutto sconosciuti, ha ritenuto di non pubblicare il Regolamento dello Strange Radio Event su RR 10/2008. Stupiti da simile comportamento, in quanto lo Strange Radio Event è tra i Diplomi più seguiti del radioantismo italiano basta osservare le classifiche ed i partecipanti ad ogni manifestazione sul nostro sito http://www.strangeradioteam.com , comunichiamo che per evitare una poca partecipazione dovuta alla non visibilità sull'organo ufficiale dell ARI, nei giorni 17 - 18 - 19 Ottobre 2008 saranno on air esclusivamente i call speciali SRT.
Quindi tutti i partecipanti dovranno rispettare il seguente regolamento:
1- Data: 06.00 GMT del 17 Ottobre alle 22.00 GMT del 19 Ottobre 2008.
2- Per ottenere lo Strange Radio Event Certificate è importante collegare 5 differenti S.R.T. Special Calls.
3- Mode: SSB .
4- Premi: 1st European OM; 1st station Outside Europe, 1st S.R.T. Special Call and 1st SWL.
Essi verranno consegnati durante il 6th International DX Convention 2009, che si terrà il prossimo 18 e 19 Aprile a Paestum ( Salerno ),
5- La lista dei nominativi speciali è la seguente:
7S0SRT via SM0IMJ
DZ1SRT via DU1IVT
EG3SRT via EA3GHZ
GB0SRT via M0KCM
PD05SRT via PD5CW
W1SRT via W3IZ
V55SRT via IZ8EDJ
YU05SRT via YT3W
II0SRT via IS0LFZ
IU0SRE via I0YKN
IR1SRT via IZ1GJK
II2SRT via I2JJR
IR3SRT via I5JKI
IU3SRT via IZ3DBA
II5SRT via IZ5BTC
IO5SRT via IK5ZTT
IR6SRT via IZ6GSQ
IU7SRE via IZ7CRW
II8SRE via IZ8GNH
IU8SRE via IK8WEJ
IQ8OM via IZ8EDJ
6- La richiesta del diploma con il relativo log dovrà essere richiesto entro il 30 Novembre 2008 all' Event Manager: Marco De Carlo, IZ7DOK Via degli Orefici 6, 73100 Lecce, Italy. Il costo e' di 10 Euro or 15 $ che dovranno essere inviate all' Event Manager.
7- Per maggiori informazioni: http://www.strangeradioteam.com , email iz7dok@strangeradioteam.com
Preghiamo, infine, di diffondere la notizia attraverso siti WEB ed e-mail e scusandoci per l'inconveniente non certo creato da noi porgiamo
Distinti Saluti
Oreste D'Anzilio, IZ8EDJ
Presidente SRT
Marco De Carlo, IZ7DOK
Vice Presidente SRT & Event Manager
Francesco Giacoia, IZ7AUH
Vice Presidente SRT
Francesco Fazio, IK8WEJ
Vice Presidente SRT
l' EX Direttore di Radio Rivista, Prof. Nicola Sanna I0SNY per motivi del tutto sconosciuti, ha ritenuto di non pubblicare il Regolamento dello Strange Radio Event su RR 10/2008. Stupiti da simile comportamento, in quanto lo Strange Radio Event è tra i Diplomi più seguiti del radioantismo italiano basta osservare le classifiche ed i partecipanti ad ogni manifestazione sul nostro sito http://www.strangeradioteam.com , comunichiamo che per evitare una poca partecipazione dovuta alla non visibilità sull'organo ufficiale dell ARI, nei giorni 17 - 18 - 19 Ottobre 2008 saranno on air esclusivamente i call speciali SRT.
Quindi tutti i partecipanti dovranno rispettare il seguente regolamento:
1- Data: 06.00 GMT del 17 Ottobre alle 22.00 GMT del 19 Ottobre 2008.
2- Per ottenere lo Strange Radio Event Certificate è importante collegare 5 differenti S.R.T. Special Calls.
3- Mode: SSB .
4- Premi: 1st European OM; 1st station Outside Europe, 1st S.R.T. Special Call and 1st SWL.
Essi verranno consegnati durante il 6th International DX Convention 2009, che si terrà il prossimo 18 e 19 Aprile a Paestum ( Salerno ),
5- La lista dei nominativi speciali è la seguente:
7S0SRT via SM0IMJ
DZ1SRT via DU1IVT
EG3SRT via EA3GHZ
GB0SRT via M0KCM
PD05SRT via PD5CW
W1SRT via W3IZ
V55SRT via IZ8EDJ
YU05SRT via YT3W
II0SRT via IS0LFZ
IU0SRE via I0YKN
IR1SRT via IZ1GJK
II2SRT via I2JJR
IR3SRT via I5JKI
IU3SRT via IZ3DBA
II5SRT via IZ5BTC
IO5SRT via IK5ZTT
IR6SRT via IZ6GSQ
IU7SRE via IZ7CRW
II8SRE via IZ8GNH
IU8SRE via IK8WEJ
IQ8OM via IZ8EDJ
6- La richiesta del diploma con il relativo log dovrà essere richiesto entro il 30 Novembre 2008 all' Event Manager: Marco De Carlo, IZ7DOK Via degli Orefici 6, 73100 Lecce, Italy. Il costo e' di 10 Euro or 15 $ che dovranno essere inviate all' Event Manager.
7- Per maggiori informazioni: http://www.strangeradioteam.com , email iz7dok@strangeradioteam.com
Preghiamo, infine, di diffondere la notizia attraverso siti WEB ed e-mail e scusandoci per l'inconveniente non certo creato da noi porgiamo
Distinti Saluti
Oreste D'Anzilio, IZ8EDJ
Presidente SRT
Marco De Carlo, IZ7DOK
Vice Presidente SRT & Event Manager
Francesco Giacoia, IZ7AUH
Vice Presidente SRT
Francesco Fazio, IK8WEJ
Vice Presidente SRT
Monday, October 06, 2008
Friday, October 03, 2008
Referendum ARI: ed il sito ?
Per avere gli esiti del referendum ARI abbiamo dovuto attendere le notizie inviate via email ai Comitati Regionali o ai candidati stessi. Ovvero nulla è apparso sul sito ARI, nè i parziali, nè tanto meno i dati finali. Già si sapeva da una nota circolata prima del referendum stesso che "...il Collegio Sindacale non ha alcun rapporto con il sito Web dell'Associazione..." e che "Non potendo, per le ragioni indicate in premessa, affidarsi al sito web dell'Associazione, sarà cura della Segreteria Generale inviare.....". E' curioso leggere "sito web dell'Associazione" ma in che senso è veramente un sito dell'Associazione. Basta definirlo tale per l'immagine di testa o per la scritta finale © ARI - Associazione Radioamatori Italiani? Come è possibile che un webmaster che cura un sito ARI non abbia rapporti col Collegio Sindacale e che non pubblichi nulla degli esiti del referendum ? Conflitti di interessi ? Censura volontaria ? Dimenticanza ? E possibile che nessuno degli iscritti al forum abbia manifestato una sorta di vergogna per tale omissione ? O eventuali messaggi sono stati opportunamente filtrati ? Quando verrà sanata questa situazione ? Questo sarà uno dei primi argomenti da affrontare per il nuovo Consiglio almeno per dare un segno tangibile di cambiamenti.
Thursday, October 02, 2008
Il futuro delle Onde Corte nel Pacifico
Ron Howard segnala il programma di David Riquish (Radio New Zealand) ascoltato il 30 settembre. Viene detto chiaramente che i rapporti degli SWL non sono più così utili come nel passato avendo a disposizione diversi ricevitori remoti sparsi un po' in tutto il Pacifico. In attesa che Internet diventi raggiungibile dovunque, le trasmissioni in onde corte saranno ancora necessarie per altri 15-20 anni nel Pacifico. source
Wednesday, October 01, 2008
Recent scenes from North Korea
While awaiting for the next DXped in P5 take a look at these wonderful images (32 photos total) from North Korea.
P29 on E.M.E. and 160mt
Two weeks left to the P29 departure and Mike, K6MYC replaced Hugh K6HFA. Mike will be taking an EME station. The team will also be making a big effort on 160m with an amplifier, Titanex and separate receiving antennas. This is a costly effort with equipment having to be air freighted ahead. Your donations would be most welcome.
This is the team active in October 2006 from OC-115 as P29NI
This is the team active in October 2006 from OC-115 as P29NI
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