[amsat-bb] Re: 150 cubesats to provide global WIFI multicasting

Hello everybody, I agree with Trevor, GS requirement for the 2.4 GHz band are quite challenging. Anyway, I have another question, what kind of orbit this constellation will be designed for? If it is less than 500 km, how many *months* will it last? 73s Fabio iz5xrc On Mon, Feb 10, 2014 at 8:43

[amsat-bb] Re: ISS HamTV Frequencies (range gain)

Hi all, 1 or 2 degree per second is an educated guess for almost all passes. If the pass is over head the speed will increase up to 4/5 degree per second (as maximum value), such a speed is not achievable by all rotators. Hope that helps, 73s Fabio IZ5XRC www.amsat.it On Mon, May 13, 2013

[amsat-bb] Re: Newsky dongle

Hello everybody, I'm using SDR# (v.999) with several dongles (FCD, FC0013, E4000) and it works great. I could suggest to use a notch filter (it could be a quarter wave stub) to limit front-end overload from FM broadcasting. Hope that helps, 73s Fabio iz5xrc On Tue, Jan 15, 2013 at 8:47 PM,

[amsat-bb] Re: ISS Height Profiles @ Heavens-Above.com

? Bob On Fri, Jan 13, 2012 at 10:28 AM, Fabio Azzarello iw8...@amsat.orgwrote: Hello everybody, ISS heights plots are available at the following link: http://www.heavens-above.com/OrbitHeight.aspx?satid=25544startMJD=55610lat=43lng=11 I've noticed that Apogee and Perigee heights have

[amsat-bb] Re: ARISSat-1 (37772) decay

Hello Everybody, I totally agree with you James... the process is a continuous evolution. I did my prediction on October 6th for the Chicken Little Competition and my date was January 23rd 2012. It surprisingly agrees with your prediction done almost one month later, this make me think that my

[amsat-bb] Re: ARISSat-1 Re-entry Prediction

Hello everybody, I did my guess before the end of the Chicken Little Competition... maybe a little too early to catch the correct date of re-entry. Anyway, I've noticed that your prediction, Mineo, seems to be optimistic towards the date of re-entry. I think that, close to that date, sat's height

[amsat-bb] Re: Response to my request of information about EduSatfrom GAUSS team in Rome: Re: [CubeSat] Edusat operative or failure

Hello, just to add a bit of information... can refer to the following links: https://apps.fcc.gov/els/GetAtt.html?id=112305 http://www.imtsrl.it/s_band.html Hope this helps, 73s Fabio IW8QKU/5 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are

[amsat-bb] Re: ARISSat-1 battery

Hi all, what about the following link? http://www.nrel.gov/features/20100708_battery.html 73s Fabio IW8QKU/5 *Subject: [amsat-bb] ARISSat-1 battery From: g0mrf@xxx Date: Mon, 29 Aug 2011 08:50:45 -0400 (EDT) Hi all. The ARISSat team seem to have reached the conclusion that the Silver

[amsat-bb] Re: ARISSat-1 battery

Hi, here is another interesting link: http://www.nrel.gov/vehiclesandfuels/energystorage/news/2011/1482.html could it be an interesting opportunity for our birds ? 73s Fabio IW8QKU/5 On Mon, Aug 29, 2011 at 3:09 PM, Fabio Azzarello iw8...@amsat.org wrote: Hi all, what about the following

[amsat-bb] Arissat-1: EVA 29 live stream coverage

Hello, Nasa TV Schedule reports: *August 3, Wednesday 10 a.m. - ISS Expedition 28 Russian Spacewalk Coverage (spacewalk begins 10:30 a.m. EDT.)* it seems that the deployment of ARISSat/KEDR will be one of the first tasks of the EVA, does anybody know where to find the EVA timeline? 73s Fabio

[amsat-bb] Re: PREDICT for 64-bit Winderz?

Hello, I would suggest to use DOSBOX, it works fine on many OS. Don't know if it works properly also on 64bit WIN, but it is worth a try at least. RGs Fabio Azzarello IW8QKU ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author