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Author Topic: BG7TBL gpsdo master reference info needed  (Read 666 times)
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ehnonymouse
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« on: September 24, 2015, 08:01:43 20:01 »

Hi guys, I just bought the Trimble version of this from ebay / China. There are three LEDs on the front, a red WARN one and red and green labelled ACT.

On turning on the green ACT LED comes on constantly, after a while it blinks slowly, and after a while longer it begins to blink quickly. Eight hours later, I still just have one green blinking LED.

Is it faulty? How do you know when it's locked?
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titi
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« Reply #1 on: September 25, 2015, 07:16:35 19:16 »

Hi ehnonymouse,
To work correctly, GPSDO need an external antenna to receive GPS signals from satellites, this antenna need receive generally minimum 3 Satellites to have enough data to lock the PLL that give you the 10MHz at output.

May be you can found information on this forum:
http://www.eevblog.com/forum/testgear/bg7tbl-gpsdo-master-reference/

Best regards.
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ehnonymouse
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« Reply #2 on: October 10, 2015, 10:27:48 10:27 »

Thank you for the link.
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