Hallo
Today morning I recorded signals from AO51 downlink with my call and a station in background: www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3 Elevation was 3 deg and lower. Station heard in background probably doesn't know that transmits within satellite part of 2m band, maybe it is not amateur?
Matt SQ7DQX
Hi Mateusz, It sounds like Spanish to me. I heard it during the pass also. In Spain some people use the 2 meter band for privat talk. They are not necessarily radio amateurs. It is an old story :-(
I tried to contact the Spanish authorities - but they do not do anything.
It is often worse on the AO-27 uplink at 145.850 MHz. Sometimes they block SO-50 - but you can not hear it - however they make it drop out.
73 OZ1MY Ib ----- Original Message ----- From: "Mateusz" [email protected] To: [email protected] Sent: Monday, November 30, 2009 9:32 AM Subject: [amsat-bb] morning pass AO-51
Hallo
Today morning I recorded signals from AO51 downlink with my call and a station in background: www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3 Elevation was 3 deg and lower. Station heard in background probably doesn't know that transmits within satellite part of 2m band, maybe it is not amateur?
Matt SQ7DQX
Hi ib, OZ1MY
The accent of the interfering station on AO-51 is from Sardinia Island and the person speaking is a radioamateur discussing about a 50 ohm impedance with another Ham.
www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3
You cannot solve the problem existing as well in Spain shooting down all taxi drivers that are using 2 meters for their communications.
The only cure is to make the LEO satellite receivers less sensitive and use more EIRP at the ground station.........no HT's my friend !
The above problem was not existing on HEO satellites like OSCAR-10 OSCAR-13 and AO40 because the EIRP necessary to access the transponder was almost 20 dB greater than the power radiated by a taxi driver or by the Sardinian station.
The second cure don't sell a tranceiver covering the amateur band to everybody without an amateur licence is against the commercial purposes i.e. it is unviable.
I know that you will complain with my statement and the Spanish autorities but if you don't like the Spanish or Sardinia interference over AO-27, AO-52 and SO-50 you must pull for only one HEO and not for many supersensitive LEO's
73" de
i8CVS Domenico
----- Original Message ----- From: "OZ1MY" [email protected] To: [email protected] Sent: Monday, November 30, 2009 5:05 PM Subject: [amsat-bb] Re: morning pass AO-51
Hi Mateusz, It sounds like Spanish to me. I heard it during the pass also. In Spain some people use the 2 meter band for privat talk. They are not necessarily radio amateurs. It is an old story :-(
I tried to contact the Spanish authorities - but they do not do anything.
It is often worse on the AO-27 uplink at 145.850 MHz. Sometimes they block SO-50 - but you can not hear it - however they make it drop out.
73 OZ1MY Ib ----- Original Message ----- From: "Mateusz" [email protected] To: [email protected] Sent: Monday, November 30, 2009 9:32 AM Subject: [amsat-bb] morning pass AO-51
Hallo
Today morning I recorded signals from AO51 downlink with my call and a station in background: www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3 Elevation was 3 deg and lower. Station heard in background probably doesn't know that transmits within satellite part of 2m band, maybe it is not amateur?
Matt SQ7DQX
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Hi Domenico, Thanks for the correction. It is not so often Italian radio amateurs that are the problem.
I too would like a HEO - in the meantime I will use whatever satellite we have :-)
73 OZ1MY Ib ----- Original Message ----- From: "i8cvs" [email protected] To: "OZ1MY" [email protected]; "AMSAT-BB" [email protected] Cc: [email protected] Sent: Monday, November 30, 2009 8:04 PM Subject: Re: [amsat-bb] Re: morning pass AO-51
Hi ib, OZ1MY
The accent of the interfering station on AO-51 is from Sardinia Island and the person speaking is a radioamateur discussing about a 50 ohm impedance with another Ham.
www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3
You cannot solve the problem existing as well in Spain shooting down all taxi drivers that are using 2 meters for their communications.
The only cure is to make the LEO satellite receivers less sensitive and
use
more EIRP at the ground station.........no HT's my friend !
The above problem was not existing on HEO satellites like OSCAR-10 OSCAR-13 and AO40 because the EIRP necessary to access the transponder was almost 20 dB greater than the power radiated by a taxi driver or by
the
Sardinian station.
The second cure don't sell a tranceiver covering the amateur band to everybody without an amateur licence is against the commercial purposes i.e. it is unviable.
I know that you will complain with my statement and the Spanish autorities but if you don't like the Spanish or Sardinia interference over AO-27,
AO-52
and SO-50 you must pull for only one HEO and not for many supersensitive LEO's
73" de
i8CVS Domenico
----- Original Message ----- From: "OZ1MY" [email protected] To: [email protected] Sent: Monday, November 30, 2009 5:05 PM Subject: [amsat-bb] Re: morning pass AO-51
Hi Mateusz, It sounds like Spanish to me. I heard it during the pass also. In Spain some people use the 2 meter band for privat talk. They are not necessarily radio amateurs. It is an old story :-(
I tried to contact the Spanish authorities - but they do not do anything.
It is often worse on the AO-27 uplink at 145.850 MHz. Sometimes they block SO-50 - but you can not hear it - however they make it drop out.
73 OZ1MY Ib ----- Original Message ----- From: "Mateusz" [email protected] To: [email protected] Sent: Monday, November 30, 2009 9:32 AM Subject: [amsat-bb] morning pass AO-51
Hallo
Today morning I recorded signals from AO51 downlink with my call and a station in background: www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3 Elevation was 3 deg and lower. Station heard in background probably doesn't know that transmits
within
satellite part of 2m band, maybe it is not amateur?
Matt SQ7DQX
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (3)
-
i8cvs -
Mateusz -
OZ1MY