[ARDF] Fwd: [Melb-ARDF] Fwd: The Case of Missing SI box 101

[Matthew Robbins]

Forwarding this from the Melbourne ARDF reflector. Has anyone ever tried
DFing a SportIdent box?  The new ones (BSF7 and BSF8 models) should have a
short burst of RF every 1-2 seconds. Some details below.

It might be possible to transmit something (???) that would wake it up and
make it have a continuous signal for the programmed time (usually about 2
hours).

Matthew
Cincinnati

---------- Forwarded message ----------
From: Bruce <abruceperson at gmail.com>
Date: Tue, Sep 4, 2012 at 1:14 PM
Subject: [Melb-ARDF] Fwd: The Case of Missing SI box 101
To: Melb ARDF <melb-ardf at lists.id.oz.au>


 Any one have a loop that low ?

Cheers,
Bruce

Begin forwarded message:

 *From:* "Don Fell" <don.fell at bigpond.com>
*Date:* 4 September 2012 3:12:32 AM GMT+02:00
*To:* "Bruce Paterson" <secretary at ardf.org.au>, "Geoff Hudson <
geoff.hudson at gmail.com> \(\)"
*Cc:* "Rex Niven" <fortytroutelectronics at optusnet.com.au>
*Subject:* *FW: The  Case of Missing SI box 101*

  We think there is an SI control box out in the bush at Hepburn. Any
comments on Rex’s radio tracking suggestion?****

** **

Don****

** **

*From:* Rex Niven [mailto:fortytroutelectronics at optusnet.com.au]
*Sent:* Tuesday, 4 September 2012 7:48 AM
*To:* Don Fell; 'Phil Giddings'; 'Laurie Niven'; kliley at netspace.net.au
*Cc:* 'Rex Niven'; 'Ron Frederick'; 'Rob Edmonds'
*Subject:* The Case of Missing SI box 101****

** **

The snippet of data from Don seems critical - the box never got back to
base camp.  ****

 ****

I dropped a box in the bush once myself, and even though I knew where
within 100 metres, it still took two hours to find (the setting sun finally
glinted off its shiny back). ****

Here there is  over 1 km to cover.  I suppose the control sites and Phil's
car park place are the most likely spots.****

 ****

You can't call it on your phone, but do any of the ARDF crowd think you can
detect it with an antenna?  It should send out bursts of 125kHz
occasionally. An old Long Wave transistor receiver might do it.****

 ****

Rex Niven
Secretary Nillumbik Emus Orienteering Club
15 Rockliffe St Eltham Vic 3095
Australia
phone    (61  3) 9444 1803
cell         0417 34 94 27
FAX       (61 3) 9444 1807 ****

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