[FlexEdge] ok..
it's 7:30 p.m. CDT on Friday night, memorial day weekend...where's my weekly update ?? w5xz, dan ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software innovation and other technical SDR topics.
[FlexEdge] ok rocket scientists
How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! -- Any clod can have the facts - having opinions is an art. --- W9OL-Bill H. in Chicagoland webcams at http://w9ol-towercam.webhop.org:8080 My weatherpage at http://home.comcast.net/~w9ol/WX/HH.htm ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
The pictures are taken in a remote area near Yuma, Az and only take a few milliseconds on a fiber optic link. -Original Message- From: bill Sent: Friday, August 10, 2012 12:48 PM To: flexedge@flex-radio.biz Subject: [FlexEdge] ok rocket scientists How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
Google has a photo-robot on Mars and has been mapping and photographing the planet for a couple of years. Those are very old photos that you are seeing. George K2CM From: flexedge-boun...@flex-radio.biz [flexedge-boun...@flex-radio.biz] on behalf of James T Kirk [james.t.k...@charter.net] Sent: Friday, August 10, 2012 2:06 PM To: bill; flexedge@flex-radio.biz Subject: Re: [FlexEdge] ok rocket scientists The pictures are taken in a remote area near Yuma, Az and only take a few milliseconds on a fiber optic link. -Original Message- From: bill Sent: Friday, August 10, 2012 12:48 PM To: flexedge@flex-radio.biz Subject: [FlexEdge] ok rocket scientists How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
Captain Kirk. That can't possibly be correct. For no-one would go to Yuma for ANY REASON much less to take pictures. On 8/10/12 1:06 PM, James T Kirk wrote: The pictures are taken in a remote area near Yuma, Az and only take a few milliseconds on a fiber optic link. -Original Message- From: bill Sent: Friday, August 10, 2012 12:48 PM To: flexedge@flex-radio.biz Subject: [FlexEdge] ok rocket scientists How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! -- A stitch in time would have confused Einstein. --- W9OL-Bill H. in Chicagoland webcams at http://w9ol-towercam.webhop.org:8080 My weatherpage at http://home.comcast.net/~w9ol/WX/HH.htm ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
It also means that the experiment to find remnants of life is destined for failure. -- Richard A Clafton | the brITish guy | W5\G7EIX RIROC - Hosting - Development - Technology http://www.riroc.com | rclaf...@riroc.com Jack of all trades, master of none, though often better than the master of one. -Original Message- From: flexedge-boun...@flex-radio.biz [mailto:flexedge-boun...@flex-radio.biz] On Behalf Of bill Sent: Friday, August 10, 2012 1:20 PM To: James T Kirk; flexedge@flex-radio.biz Subject: Re: [FlexEdge] ok rocket scientists Captain Kirk. That can't possibly be correct. For no-one would go to Yuma for ANY REASON much less to take pictures. On 8/10/12 1:06 PM, James T Kirk wrote: The pictures are taken in a remote area near Yuma, Az and only take a few milliseconds on a fiber optic link. -Original Message- From: bill Sent: Friday, August 10, 2012 12:48 PM To: flexedge@flex-radio.biz Subject: [FlexEdge] ok rocket scientists How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! -- A stitch in time would have confused Einstein. --- W9OL-Bill H. in Chicagoland webcams at http://w9ol-towercam.webhop.org:8080 My weatherpage at http://home.comcast.net/~w9ol/WX/HH.htm ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
On Fri, Aug 10, 2012 at 10:48 AM, bill b...@w9ol.com wrote: How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! I presume you want a serious answer. No, they do not use a checksum system because it takes too long to send back a NAK to say, sent that one again. (It is a 20+ minute round trip for the radio signal.) They actually use forward error correction with enough redundancy so that, when the bits arrive back on earth, even if some of them are wrong, the receiver can correct the errors so an error-free data block (or part of a picture) is recreated in the receiver. In ham radio we have a couple of systems that work this way, e.g. Olivia, MFSK16, Contestia, DominoEX/FEC, Thor, MT63, JT65, WSPR, etc. That is why they get good copy on a poor signal without having to retransmit the data. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
I was close An average of 14 minutes, 6 seconds will be required for signals to travel between Earth and Mars. Mars-Earth distance in light minuteshttp://www.wolframalpha.com/input/?i=mars+earth+distance+. WolframAlpha. Retrieved August 6, 2012. On Fri, Aug 10, 2012 at 1:36 PM, Brian Lloyd brian-wb6...@lloyd.com wrote: On Fri, Aug 10, 2012 at 10:48 AM, bill b...@w9ol.com wrote: How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! I presume you want a serious answer. No, they do not use a checksum system because it takes too long to send back a NAK to say, sent that one again. (It is a 20+ minute round trip for the radio signal.) They actually use forward error correction with enough redundancy so that, when the bits arrive back on earth, even if some of them are wrong, the receiver can correct the errors so an error-free data block (or part of a picture) is recreated in the receiver. In ham radio we have a couple of systems that work this way, e.g. Olivia, MFSK16, Contestia, DominoEX/FEC, Thor, MT63, JT65, WSPR, etc. That is why they get good copy on a poor signal without having to retransmit the data. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. -- Doc Bill Dailey KXØO ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
Thanks Brian and a sort of funny part of getting your explanation... I've been running JT65HF on 12/17 meters for the last two hours and writing the email question and this reply during my transmissions. LOL So I'm as good as Curiosity...just a whole lot cheaper On 8/10/12 1:36 PM, Brian Lloyd wrote: On Fri, Aug 10, 2012 at 10:48 AM, bill b...@w9ol.com mailto:b...@w9ol.com wrote: How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! I presume you want a serious answer. No, they do not use a checksum system because it takes too long to send back a NAK to say, sent that one again. (It is a 20+ minute round trip for the radio signal.) They actually use forward error correction with enough redundancy so that, when the bits arrive back on earth, even if some of them are wrong, the receiver can correct the errors so an error-free data block (or part of a picture) is recreated in the receiver. In ham radio we have a couple of systems that work this way, e.g. Olivia, MFSK16, Contestia, DominoEX/FEC, Thor, MT63, JT65, WSPR, etc. That is why they get good copy on a poor signal without having to retransmit the data. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com mailto:br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) -- Bibliophobia - Fear of books. --- W9OL-Bill H. in Chicagoland webcams at http://w9ol-towercam.webhop.org:8080 My weatherpage at http://home.comcast.net/~w9ol/WX/HH.htm ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
Re: [FlexEdge] ok rocket scientists
In addition, Curiosity does not send data directly back to earth but rather it is relayed through Mars orbiters. Two other Mars orbiters, NASA's Mars Reconnaissance Orbiter and the European Space Agency's Mars Express, also will be in position to receive radio transmissions from the Mars Science Laboratory during its descent. However, they will be recording information for later playback, not relaying it immediately, as only Odyssey can. http://www.jpl.nasa.gov/news/news.cfm?release=2012-218 On Fri, 2012-08-10 at 12:48 -0500, bill wrote: How long does it take from the time Curiosity takes a pictures/processes it for transmission to reception by NASA? Is the picture sent in segments and does NASA use a 'checksum' type system to make sure of proper reception. Today's pics were better than I took of my dogs yesterday, and they were just a few feet away from me lying in my lawn! ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
[FlexEdge] OK to run earlier version of PowerSDR?
5000a, Win XP SP3 I recently installed PowerSDR 2.3.5 but am having problems and would like to drop back to 2.2.3 temporarily. Can I do this by simply running 2.2.3 or do I have to make changes in firmware/driver/etc first? If so, what is required? Thanks Jerry W4UK ___ Flexedge mailing list Flexedge@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
