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    GOES 16 GRB downlink vs GVAR

    Hi again everyone, Thanks Brett for continuing work of the hardware side of this. It's frustrating that there are several DVB-S2 Generic stream cards out there but only one works, and it's no longer being made anymore. Figures.:mad: Brett, did you tell TBS that the chipset in that card is...
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    GOES 16 GRB downlink vs GVAR

    Hi everyone, Due to some policy changes on Google sites I ended up removing the site GRB BBF for view site and some other image loop links. Posts affected #605 (Google Sites links are dead) Post #607 Movie link is dead Post #648 Links dead to image loop files I still have these files and...
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    GOES 16 GRB downlink vs GVAR

    Long time here, I have had no workings with GRB on direct reception since May 2019. All my previous pictures on here of my system in working order are no longer reflect that system. In May the river behind my house flooded big time, I had to take all my systems down and pack them away...
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    GOES 16 GRB downlink vs GVAR

    Some updates here as well, Firstly, I got the storage drive for the files upgraded to a solid state drive. This has sped up the process of maintaining the data on the drive. This also helps access the data for viewing slideshows with the large images. I also installed a simple but powerful...
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    GOES 16 GRB downlink vs GVAR

    Some of the final pictures of the Amp case and inside. These pics show the foam that I put in there to keep the parts inside the case from moving, it fills the space and keeps a good solid hold on the parts inside. The foam is cheap and easy to fit with the a razor blade. The case through...
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    GOES 16 GRB downlink vs GVAR

    An update to the progress of the GRB station here Brett (N6BY) has been updating GRB Imager and making it even better. The last few updates include being able to extract a smaller part of the image out of the Fulldisk and CONUS. This acts to zoom in on the area of interest. Also it's easy to...
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    GOES 16 GRB downlink vs GVAR

    This is an update to the feed construction info that I posted. I found that the book that I got the info from was wrong so the converted measurements was wrong, the good news that it was just one measurement that was wrong. The septum length overall should be 9.29" NOT 10.29". I made a new...
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    GOES 16 GRB downlink vs GVAR

    Still not bad for that small of dish. Lot better then where I was. Yes, the last picture you see of the instructions I show the feed and ring together but as I said I used aluminum foil tape to hold it together as I still want to change the septum in the feed for the proper size. My septum is...
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    GOES 16 GRB downlink vs GVAR

    Goes 17 is in test out period, somewhere in early Dec. if every thing checks out it will be declared operational GOES West. That "X" is tough to see, but since I know where you are located I see it. Ya, that smoke does look a lot better. With you in a much better location for GOES West you...
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    GOES 16 GRB downlink vs GVAR

    I finished putting a slide show together with the images I got setting up Wed. Same data from the screen shot above shows. This is the link for all 5 channels I got for the CONUS loops, meso sector loops. This was made by another slide show software not by the one on GRB Imager. The link below...
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    GOES 16 GRB downlink vs GVAR

    And here should be the beginning of the preamp block for GRB.
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    GOES 16 GRB downlink vs GVAR

    Brett updated GRB Imager to 1.17 due to issues with the TBS 6903 card having CADU errors for an unknown software reason. Since he updated the program the change has been great as to results. Screen shot shows 14.5 Million frames with out errors, the actual number is 21 million frames due to a...
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    GOES 16 GRB downlink vs GVAR

    For the final installment of these uploads I plan to show you how I'll make my preamp block for this. I will be able run on 7-30V DC and be powered using an F connector and RG58 or 59 cable.
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    GOES 16 GRB downlink vs GVAR

    The state of Cal is on the Eastern side of a strong mid to high level High pressure system, We here have been on the low pressure side of the system and getting one shot after another of arctic air coming down. But that pressure system is pulling the smoke to the SW like that and that pattern...
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    GOES 16 GRB downlink vs GVAR

    Soldering: You could do this step before you assemble the ring onto the flange for the final time installing the bolts. But I did it after so I didn't have to worry about touching the cleaned soldering surface. With the assembly off the jig push the flange from the ring so that it comes out...
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    GOES 16 GRB downlink vs GVAR

    Adding the choke ring strip: Do these steps on a flat surface. You have some options here as if you want to use the .030" or the .040" sheet thickness. If you decide to use the .040" then you will need to pre form it before putting it over the jig. Cause if you don't and do it like I did the...
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    GOES 16 GRB downlink vs GVAR

    Here is the pages of constructing the septum feed choke ring. Any changes that will need to be made will be made later in another post. N6BY has dimensions of a septum feed that he uses, his dimensions would work for this as well. This feed is converted from the RA3AQ septum feed. Tools: Tin...
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    GOES 16 GRB downlink vs GVAR

    To add to this: I left out also clean up the edges of the channels at this time, remove all shear burrs and sharp edges. Now install the 4-40 S.S. screws & nuts. Start with the septum, with a couple and work your way to the front. Install only one in each spacer so the it will pivot in place...
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    GOES 16 GRB downlink vs GVAR

    Making the probes Starting this step begins with cutting two lengths of the 3/32" brass tube to 1.30" long, I used a razor saw to do this. Use a file to clean the ends up. On the end that will not be soldered (I found) to use a drill at low speed to clean the edges up and take off the sharp cut...
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    GOES 16 GRB downlink vs GVAR

    The back plate This step starts with measuring the widest areas at the septum end of the waveguide. Due to the channel bending process, where the two channels come together may not be straight in line. The result is a slight bulge in the seam area. So measure the widest area and trim the back...
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    GOES 16 GRB downlink vs GVAR

    Brett, I can't click "like" a 100 times! for that post of yours. Fantastic. Guess I need to go out and get another machine for this.
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    GOES 16 GRB downlink vs GVAR

    Assembling the 2 half's of the waveguide Lay the septum on one of the waveguide half's and make marks on the outside where the edges of the septum are, at this time use the drop material from the cutting of the septum and cut some 1/2" strips that you can use for spacers between the two half's...
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    GOES 16 GRB downlink vs GVAR

    Installing SMA connectors... I used SMA panel mount connectors for this feed. You could use "N" or BNC connectors as well but the connector layout will be a bit different and so may be the hardware to fasten it to the waveguide body. To install the connectors I find the easiest way is to drill a...
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    GOES 16 GRB downlink vs GVAR

    As I said I would, here is the first few pages of constructing the septum feed. Any changes that will need to be made will be made later in another post. N6BY has dimensions of a septum feed that he uses, his dimensions would work for this as well. This feed is converted from the RA3AQ septum...
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    GOES 16 GRB downlink vs GVAR

    Like I uploaded. Clouds white and ground black. That's always the way I have viewed them. Thanks.