-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said: | On Wed, 30 Apr 2008 20:18:45 -0300 | Werner Almesberger <[EMAIL PROTECTED]> wrote: | |> Andy Green wrote: |>> To my regret forcing Vcont to 3.0V or 0V when on external or |>> internal antenna did not make any difference either. |> There goes the easy way out :-( | | What if we just test this part by hooking up a 1.5GHz function | generator and then measuring output while applying different voltages?
I actually have a 3GHz spectrum analyzer with tracking generator that can do this. But it doesn't seem to be the real issue here. |> Stupid question: did you put the shield back on ? | | Well, it needs to be soldered back.. Right, no I didn't put the shield back. The several extra dB from this external patch antenna should overwhelm the noise from lack of shield you would think. All the other cans are on. | I have just tried to revive GPS on my GTA02v4 by desoldering the | antenna switch and hard-wiring the antenna input to the internal | antenna - with mixed success. | The GPS is now able to sync to the time and it saw one satellite, but | reception is much worse than my 2v5. I didn't solder the shield back | on, though. Nice test. The problem is elsewhere despite the Vcont issue. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkgZdDYACgkQOjLpvpq7dMoE3wCgjII03Xio0mvqJp/PVMDa1otj zC0AnRa0JxDdLk7XF00n5wteiSoqUgVc =+G1z -----END PGP SIGNATURE----- _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
