Pavel,
The ISS Kenwood D710 is being duty cycled 3 minutes on and then 3 minutes off to minimize overheating. That is why you heard no signal in that period.
Thank you for your interest in the ARISS program and AMSAT (via -bb).
73, Frank Bauer, KA3HDO
********
Date: Sat, 31 Jan 2015 20:50:51 -0500
From: Pavel Milanes Costa co7wt@frcuba.co.cu
To: Amsat - BBs amsat-bb@amsat.org
Subject: Re: [amsat-bb] ISS
Message-ID: 54CD867B.7050102@frcuba.co.cu
Content-Type: text/plain; charset=windows-1252; format=flowed
Just received 2 pictures #6 and #? 01/feb/2015 ~0031z here in Camag?ey Cuba, FL11aj
The start of the picture was just a few seconds of AOS, #6 with medium quality (jpole and HT whip antennas), unusual strong signal, in the middle of the second photo the signal dropped to the noise...
Three receivers here (RTL-SDR + base kenwood and baofeng UV-5R) and power down was noticed on the tree and stanle...
Just curious... does anyone have a explanation on that?... there was about 3 min to the LOS from a 9 min+ pass and the signal just dropped and stayed that way until LOS, not fadding...
Maybe a solar panel get on the path of the signal?
73
El 31/01/15 a las 18:11, graham mcphee escribi?:
Pictures still coming down at 2300UTC
Graham VK2AYE