[time-nuts] z3816A Problem

Brian Kirby kilodelta4foxmike at gmail.com
Thu Mar 26 02:52:17 UTC 2009

on a Z3801A receiver is reset with :SYSTEM:PRESET

then a one time position survey :PTIME:GPSYSTEM:POSITION:SURVEY ONCE

or your manually enter position data :PTIM:GPS:POS 
N,37,19,32.5,W,121,59,51.2,40.12 (thats for N 37D 19M 32.5S W 121D, 59M, 
2S and 40.12 for height in meters).

Also check:  http://www.realhamradio.com/GPS_Frequency_Standard.htm and 
the forum for good info.

Brian KD4FM

Mitchell Janoff wrote:
> I'm having a problem with my Z3816A. The health monitor and self tests show
> the unit is fine, but it never moves out of the Power-up GPS acquisition
> mode. I've tried several antennas (one of them currently working fine on a
> z3801 unit). The z3816A shows it is tracking anywhere from 0 to 6 satellites
> but never has the El or Az information filled in. Trying to initialize it
> using the :GPS:INIT:POS doesn't work, I get an error message back from the
> unit (or a receiver timeout msg). Is there a way to reset to the original
> factory settings without using the RS232 interface, or do additional
> diagnostics?
> Any assistance would be greatly appreciated.
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