Tonight I was successful in getting the L/U digipeater on CO-65 to respond to me, but was not able to decode it despite 10 over S9 signals at TCA. Uplink was UISS to AGW Engine to my KPC9612, IC910, KJ6KO amp, with about 30w at the antenna, a M2 35 element yagi. I'm interested if anyone outside of JA has had any luck with this, and what was being used to decode it?
73, Drew KO4MA
On 27 Nov 2010 at 22:20, Andrew Glasbrenner wrote:
Date sent: Sat, 27 Nov 2010 22:20:07 -0500 From: Andrew Glasbrenner glasbrenner@mindspring.com Subject: [amsat-bb] CO-65 digipeater success, sort of To: Amsat-BB amsat-bb@amsat.org
Tonight I was successful in getting the L/U digipeater on CO-65 to respond to me, but was not able to decode it despite 10 over S9 signals at TCA. Uplink was UISS to AGW Engine to my KPC9612, IC910, KJ6KO amp, with about 30w at the antenna, a M2 35 element yagi. I'm interested if anyone outside of JA has had any luck with this, and what was being used to decode it?
73, Drew KO4MA _______________________________________________
The UHF and VHF uplink and downlink use GMSK modulation:
CO-65 GMSK 9k6 digipeat
GMSK is now scheduled on every weekend over the world wide. You can digipeat via CO-65 GMSK 9k6.
In Cute-1.7 + APD II, we provide the following services using 1200MHz uplink and 430MHz downlink, on a trial basis.
1. Real-time relay communication service 2. Message box service
1267.6MHz high-speed packet communication (GMSK-9600bps) is used for uplink. 437.475MHz high-speed packet communication(GMSK-9600bps) is used for downlink.
The GMSK modulation is used in the D-STAR radio with the AMBE codecs i don't know if the CUTE data can be decoded in the digital data frames with the Icom D-STAR radio?
"-"
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE
In looking around for information on 9600 baud GMSK, I find many reviews dating back to the 1990s, and explanations on satellite project web pages, that it is compatible with K9NG/G3RUH 9600 baud modulation. IF that is correct, it should work with a strong signal. I recall (?) there is a penalty amounting to a db or so. Perhaps one of the digital experts can clarify this?
Alan WA4SCA
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Luc Leblanc Sent: Sunday, November 28, 2010 11:38 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: CO-65 digipeater success, sort of
On 27 Nov 2010 at 22:20, Andrew Glasbrenner wrote:
Date sent: Sat, 27 Nov 2010 22:20:07 -0500 From: Andrew Glasbrenner glasbrenner@mindspring.com Subject: [amsat-bb] CO-65 digipeater success, sort of To: Amsat-BB amsat-bb@amsat.org
Tonight I was successful in getting the L/U digipeater on CO-65 to respond to me, but was not able to decode it despite 10 over S9 signals at TCA. Uplink was UISS to AGW Engine to my KPC9612, IC910, KJ6KO amp, with about 30w at the antenna, a M2 35 element yagi. I'm interested if anyone outside of JA has had any luck with this, and what was being used to decode it?
73, Drew KO4MA _______________________________________________
The UHF and VHF uplink and downlink use GMSK modulation:
CO-65 GMSK 9k6 digipeat
GMSK is now scheduled on every weekend over the world wide. You can digipeat via CO-65 GMSK 9k6.
In Cute-1.7 + APD II, we provide the following services using 1200MHz uplink and 430MHz downlink, on a trial basis.
1. Real-time relay communication service 2. Message box service
1267.6MHz high-speed packet communication (GMSK-9600bps) is used for uplink. 437.475MHz high-speed packet communication(GMSK-9600bps) is used for downlink.
The GMSK modulation is used in the D-STAR radio with the AMBE codecs i don't know if the CUTE data can be decoded in the digital data frames with the Icom D-STAR radio?
"-"
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE
_______________________________________________ Sent via AMSAT-BB@amsat.org. 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
On 29 Nov 2010 at 7:52, Alan P. Biddle wrote:
Date sent: Mon, 29 Nov 2010 07:52:41 -0600 From: "Alan P. Biddle" APBIDDLE@UNITED.NET Subject: [amsat-bb] Re: CO-65 digipeater success, sort of To: amsat-bb@amsat.org Send reply to: APBIDDLE@MAILAPS.ORG Organization: AMSAT-NA
In looking around for information on 9600 baud GMSK, I find many reviews dating back to the 1990s, and explanations on satellite project web pages, that it is compatible with K9NG/G3RUH 9600 baud modulation. IF that is correct, it should work with a strong signal. I recall (?) there is a penalty amounting to a db or so. Perhaps one of the digital experts can clarify this?
Alan WA4SCA
The only one modem i found who seems to be compatible with GMSK modulation is the "Discontinued" DSP-2232 Multi-Mode Digital Signal Processors who does have a Packet 9600 bps FSK K9NG/G3RUH modem
http://www.timewave.com/products/dsp2232.html "-"
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE
participants (3)
-
Alan P. Biddle -
Andrew Glasbrenner -
Luc Leblanc