Chelmsford Amateur Radio
Society
Chelmsford Science & Industry Museum - Sandford Mill For an On-Line Map to the Science and Industry
Museum, Sandford Mill
Chelmsford Science & Industry Museum has a series of Open
Sunday afternoons during August each year. CARS was invited to
provide an Amateur Radio Station on the 6th & 20th this year.
Both days were bright & dry which resulted in a good
number of the public attending, approx 200 on the 6th & over 100
on the 20th. Among those who came, many (or their family)
had connections with Chelmsford or Marconi or other allied
industries and therefore appreciated the many displays.
The Open Days also attract visitors, often with children,
who may never have realised that Chelmsford created much of
the technology which people now take for granted.
On August 6th CARS provided our "usual" Radio Tx station
which was visited by about 50 people. From 1400 till 1700 BST
we had the satisfaction of considerable interest in the
radio station operating under our club call, GX0MWT.
The band conditions were diabolical, with a general noise
on all HFs of 9+20 or worse. Some of it had a manmade
component that compounded the problem. The 40m band
was unusable and 80m only opened after 1440 hrs when
the signals gradually overcame the noise. The operators
then worked 25 QSOs, all UK except one which was a
dodgy ON.
Thanks for the effort and kind help especially to those
folk behind the scenes who are so necessary to the
success of such an event. Above Report by Brian G3CVI.
CARS used the usual the long-wire aerial over the water
course which surrounds the Mill. This contributes
enormously to the strong signal which radiates from G0MWT,
however this does not completely overcome the Sun Spot
Minimun (ends December 2006?) which contributed to poor
propagation conditions.
Our transceiver is the FT847 running about 100watts output
and the aerial system is an 80 metre half-wave fed in the
centre with open wire feeders and an MFJ antenna tuner.
Also attended were Peter Best, G8BLS and his Wife from Ipswich.
Peter was with BT on the Microwave Group, Eastern Region
for many years and is known by many Amateurs.
Every event the public are invited to, the Friends of the Museum are able
to provide another new display, this month it was a cabinet
containing a Oscilloscope which showed the visual pattern of
a radio reception which one could listen to at the same time.
Science Day - 24th September 2006
Once a year the Chelmsford Science & Industry Museum
invites the public to celebrate Science Day. Today was fine &
warm and well over 800 people came from 10am to 5pm to
particapate. The Tea Room did a roaring trade.
CARS provided a transmitting station in "The Hut" and provided
plenty of interest. It was a relaxed affair with more "listeners"
than stations worked.
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©Copyright CARS 2006
Sunday Afternoons in August & Science Day in September
2006
24th
September 2006
Added the Science Day report.
Click here.
Introduction

Pegrum Family on the 20th August 2006 with Friend of the Museum.
Photographs by John, G8DET
Operating in the Marconi Hut on Sunday 20th August.
Malcolm, G4KGL logging with Brian, G3CVI on the microphone.
Reversing the roles
Malcolm G4KGL on the microphone with Adrian Soane, M0ABY
(visitor) logging.
Adrian & his Wife are Members of the Hoggeston Radio
Society & are involved with Duxford Radio Club.
Retired Marconi employee, Stan Dodd G0SXK, by the side of a
Marconi TV Camera. Stan worked with CARS Member, Eric
G8ADX.
Tea man & Chief Host, Geoff, G7KLV (centre) with
Dr Geoff Bowles (left) relaxing after most of the guests
have left.
The large hanger had many "things which went up & things which came down"
much to the delight of the young and not so young children.
The new ramp to "The Hut" providing an ideal place for
the CARS banner.
John & Brian on the FT 748
John & Brian now joined by visitor, ex-Eastern Electricty
Engineer, Theo Stanley
Geoff Lovegrove, G7KLV (back to us) and Colin, G0TRM
demonstrating the Morse Sender & Reader.
Geoff encouraged children to punch their name on the
Morse Tape, put it in the Sender, hear it being sent
to a receiver and finally punched out at the far end.
Creed Teleprinters
Geoff demonstrating the Punch
Machine - the "do gooder society rules" means
that we cannot show the young girl!
Colin, G0TRM looking at the Tape Reader.
Showing the printed tape
Now showing
Tony, G4YTG
Dr Geoff Bowles & Friends
Of The Museum
David Goodridge standing in Barge Susan.
Susan is awaiting funding to be rebuilt. It is the only
wooden barge left on the canal and was built in 1953.
A number of lovely sunsets veiwed that evening
after Sandford Mill had closed.