Member Since: May 31, 2011

Country: United States

  • FWIW, I tried the HiDyn version in a high-power rocket in hopes that it would reduce the lag in reporting altitude changes that I was seeing with the standard firmware. If anything, HiDyn had worse lag, and poorer in-lock performance. Not a conclusive test, but a data point.

    I’d avoid the Venus for rocket use.

  • This is a nice part and it’s good to see Sparkfun selling it, but at Digikey it only costs $42 apiece, so why the huge markup?

  • Not a flight application, but there are Sparkfun Arduinos and Easydrivers in the Mastcam engineering models on the MSL/Curiosity Mars rover Vehicle System Testbed

  • The output power and sensitivity are both impressive (power is the same and sensitivity 1 dBm better than the XBee Pro 900 XSC). Assuming 1.9 dBm antennas and a 15 dBm fade margin, 3 mile range is believable, but as the poster above says that’s with external dipole antennas, not chip antennas.

    Looks like a nice radio, definitely worth a look.

  • No way you’re getting 3 miles range with the chip antenna. The datasheet says 4000 feet at the lowest available RF rate.

  • I had to short the diode for a Pro 900 XSC as well,even though its VIH is only 2V.
    If you’re just trying to get a diode drop, don’t you want the polarity inverted from the schematic? Scoping the input to the XBee with the diode in place I saw no more than 100 mV swing, probably from leakage.

No public wish lists :(