The reason
why Wildwood had not appeared on my monitor was a subtle deviation in
the absolute timing of the currently ongoing transmission. This placed
the received pulses outside of my narrow one-millisecond monitoring slot.
During the second night I ran an extended full-GRI
monitor, showing that Wildwood was emitting 43 ms behind the nominal
Loran time frame. Steve Bartlett from UrsaNav confirmed that the transmitter
timing and control system had actually been replaced a week ago. Last night, the
extra delay was incorporated in our LoranView monitors, resulting in good
traces both in Tasmania (https://dl.dropboxusercontent.com/u/101251787/Loran%20C/LoranView.htm)
and in Nuernberg (http://www.df6nm.de/LoranView/LoranGrabber.htm).
The time offset has no effect on the quality of
Loran time difference measurements, it becomes apparent only when comparing
between different Loran GRI's or versus GPS. I'm wondering if anyone in the
time-nuts group has noticed it...
Best 73,
Markus (DF6NM)
Sent: Wednesday, August 26, 2015 6:13
PM
Subject: Re: LF: Wildwood (USA) eLoran
Transmitter Operations
Last night no signal was received in
Nuernberg on GRI 8970. Did anyone in the US hear it yet?
Best 73,
Markus (DF6NM)
Hello The Net:
For those with a LF interest,
For those
that use LORAN to generate their reference frequencies,
Wildwood, New Jersey,
USA, will be transmitting next week for experimentation.
Stan,
W1LE Cape Cod FN41sr
-------- Forwarded Message
--------
The Wildwood eLoran
transmitter will be continuously broadcasting from 0900 (EDT) on 25 August 2015
through 1800 (EDT) on 28 August 2015. Wildwood will be broadcasting as 8970
Master and Secondary.
Regards,
Steve Bartlett
Vice President, LF Operations
UrsaNav, Inc.
85 Rangeway Road
Building 3
Suite 110
North Billerica,
MA. 01862
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