I am running 2 sticks as well, one for ADS-B and other for radio reception... both made in and ordered from China, and no problem thus far. My installation poles here are earthed / direct grounded, so there should not be any static build up on the antenna. CRC: Not sure if your installation is earthed, as that could be the cause of ES build up on the antenna itself and then frying your dongle.
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HermanZA: Could be - the poles are on the ridgeline of the roof - so there is no way to ground the pole itself. I agree this wouldn't make matters easy - however proper ESD in the device would still prevent issues....
EDIT: Thinking further, earthing the pole would only earth the coax sheath - not the centre conductor (otherwise the antenna wouldn't work!) but maybe its just enough to not damage the equipment....
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have a look at the best antennas thread http://forum.flightradar24.com/threa...1-best-antenna (sorry it is long) - some of the best antenna have a shorted 1/4 wave whip at the end or some shorted matching stub, that means the inner and the outer of the co-ax are shorted together as far as a DC voltage is concerned, though they are optimally tuned for the extraction of the desired signal.
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Yeah... I've got another couple of RTL2328u based tuners on the way from China now... I've also sourced a local supplier of BAV99 protection diodes in case these tuners don't have them fitted (like my now dead ones). These ones use the newer R820T tuner - which may be better than the E4000 ones. Maybe. Time will tell when they get here...
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Originally posted by CRC View PostYeah... I've got another couple of RTL2328u based tuners on the way from China now... I've also sourced a local supplier of BAV99 protection diodes in case these tuners don't have them fitted (like my now dead ones). These ones use the newer R820T tuner - which may be better than the E4000 ones. Maybe. Time will tell when they get here...
JohnT-EGMC14 -- RTL2832U / R820T+ Raspberry Pi + Dump1090 with home made 8 element colinear 12m above ground level.
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Originally posted by CRC View Postmilair: Any chance of some photos?
CIMG0393.jpgCIMG0394.jpgT-EGMC14 -- RTL2832U / R820T+ Raspberry Pi + Dump1090 with home made 8 element colinear 12m above ground level.
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Originally posted by CRC View Postmilair: Great, thanks! It looks like a BAV99 style diode. As I said, hopefully mine have those already fitted.. Otherwise I'll have to engineer them on there myself
If they look like the same as in the picture and come with a remote control and mag mount antenna they should hopefully be identical inside. I remove mine from the case, cut out the IR receiver sensor and mount it in a diecast box, with thermal gap pad between the bottom of the PCB and the box to dissipate heat. I then get a MCX to BNC pigtail cable on EBay and mount this to one side of the box. Lastly remove the USB plug and cut a standard USB cable to bare wires and solder to the pads where the USB plug was. I then remove the LED and extend the wires allowing it to be fitted in the case through a 3mm hole. A couple of metal brackets tapped M4 on the top with more thermal gap pad hold it all in place.
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Go on be brave !
JohnLast edited by milair; 2014-02-03, 20:39.T-EGMC14 -- RTL2832U / R820T+ Raspberry Pi + Dump1090 with home made 8 element colinear 12m above ground level.
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Originally posted by HermanZA View PostVery nicely done, Milair! You can market those (at a slight profit!)
JohnT-EGMC14 -- RTL2832U / R820T+ Raspberry Pi + Dump1090 with home made 8 element colinear 12m above ground level.
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