[time-nuts] LORAN-C antenna

[Rob Kimberley]

I have read with some interest the thread on LORAN-C antennae. Although over
20 years since I was actively involved with Austron & LORAN-C, I have data
sheets and an installation instruction sheet on their 2026W Whip and 2021L
Loop antennae. All give dimensions which may be of use if anyone is planning
to construct.

Email me off list for scanned copies (PDF) - approx 7.5M file.

Cheers

Rob Kimberley


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Stan W1LE
Sent: 13 November 2007 03:02
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] LORAN-C antenna

); SAEximRunCond expanded to false
Errors-To: time-nuts-bounces+rk=timing-consultants.com at febo.com RETRY

Hello Didier,

I am using a commercial active whip antenna, McKay-Dymek model DA100A.
It is outside on a tripod, about 12' to the base. Very broadband and 
omnidirectional.
I use for VLF RX on 137 and 185 KHz as well as RX during HF FMTs.
A resonant magnetic loop antenna may have enough bandwidth, but will be 
(bi)directional.

100 KHz Loran-C stations near you are:
Malone, FL,  master on GRI 79800 and secondary (W) on GRI 89700
Jupiter, FL, secondary (Y) on GRI 79800
also secondary stations in Carolina Beach, NC and Grangeville, LA

if you need station exact lat and long, let me know.

Stan, W1LE   FN41sr   Cape Cod



Didier Juges wrote:

>); SAEximRunCond expanded to false
>Errors-To: time-nuts-bounces+stanw1le=verizon.net at febo.com RETRY
>
>Speaking of Loran, I have an old Loran receiver (origin forgotten) and no
>antenna. 
>
>Is it possible to build a Loran antenna?
>
>I understand Loran uses narrow pulses of 100 kHz, so the antenna must have
>sufficient bandwidth to let the front edge of the pulse go undistorted. On
>the other hand, there are lots of spurious signals at these frequencies, so
>some selectivity is probably necessary. I am not sure what design would be
>best. I have made ferrite bar antennas for other long-wave reception, but
it
>was narrow band, so I am not sure these designs would work.
>
>I live on the Gulf coast of North-West Florida, and therefore I believe I
am
>not too far from a Loran station, so I probably do not need extreme
>sensitivity.
>
>Any suggestion welcome.
>
>Thanks in advance,
>
>Didier KO4BB
>
>
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>  
>



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