MICROWAVE ROUND TABLE
said it was the best yet. With around 120 attendees on the Sunday,
80 on Saturday and 60 at the Dinner that evening, were inclined
to agree! This report cannot do justice to the event since everyone
present has their own perspective and story to tell. Microwavers
from the USA, Belgium, Germany as well as the UK flocked to the
British Telecom establishment at Adastral Park, Martlesham (pictured
here left)to hear the talks, test their latest construction
project, share experiences, trade at the fleamarket and enjoy the
excellent socialising that only such an event can give.
Saturday saw a most entertaining series of lectures, demonstrations
of space vehicle reception and 24GHz antenna testing (courtesy of
G4DDK shown on the right here adjusting the standard receive
horn antenna), along with the usual test facilities. The strong
demand for the latter is evident from the Noise Figure measurements
chart (many thanks to G3XDY) found elsewhere in this issue
lecture programme started with Murray, G6JYB, explaining
the challenges facing us in the microwave spectrum. Its
understandable that one could come away from such a talk feeling
quite despondent about the future of our frequencies but Murray
gave us food for thought as to how we might meet the authorities
half way in some of these problem areas
. for example by
opting for narrower but more protected slices of the spectrum.
We were delighted
to welcome our main speaker from overseas, Brian Justin,
WA1ZMS, the most successful amateur sub millimetre wave operator
in the world. He has made two way contacts and VUCC (5 grid squares)
on just about every available band from 24GHz up. Some of the
bands have since been changed or withdrawn by FCC but Brian and
his pal have already made the QSOs and got the certificates! He
treated all of us on Saturday to a most interesting lecture on
basic oscillators and mixer design at these high frequencies and
a look at some of the paths and gear he has used. If that werent
enough, he gave another lecture on Sunday, this time on low noise
oscillators, designs he has used to great effect to make narrowband
contacts as high as 241GHz.
here on the left
during his Sunday lecture
Our own Brian,
G4NNS, treated us to a most informative talk on the subject
of getting his EME dish into focus and how he has arranged to
feed it on various bands.
One his feeds,
a VE4MA type is shown here on the right:
The Young and the Wise: Young Paul M0EYT (left) meets up
with OT Doug, GW3ATM at the Saturday Night Dinner
The Two Ians: Left G8KQW (UKuG Secretary) with his pal
G8IFT in the right. These two are very active microwave
evening saw some 60 microwavers at the annual dinner held at the
Court Yard Marriott Hotel, just a few minutes drive from BT Adastral
Park where the microwave meeting was taking place. Most of us were
staying overnight at the same hotel so some fairly serious drinking
took place by one or two folk, such that at least one well known
EME-er (not Brian!) had a sizeable hangover on Sunday
morning! Sadly, some of us made an unwise choice of main course
and the UKuG Reflector was echoing complaints for days afterwards!
Steps have been taken to make sure it doesnt happen gain.
Apart from that, the rest of the meal was very good and breakfast
was its usual good value.
programme was tightly packed. The UKuG AGM batted first and two
new committee members were elected. Committee reports can be found
elsewhere in this issue. This was followed by G3PFRs
annual report from the RSGB Spectrum Forum for which he is
Microwave Manager. He gave a lucid account of the recent IARU
meeting at Davos, pointing out the valuable contributions made
there by the UKuG Committee papers submitted via RSGB. He reiterated
much of what Murray has said on Saturday regarding our need to
change our attitudes to future demands for spectrum allocations.
in the lecture room was Dave Robinson, WW2R/G4FRE who spoke
on digitally controlling surplus microwave oscillators His talk
was very well received. After lunch we were treated to a most informative
lecture on the latest AMSAT space missions, especially the Venus
Express which Freddie, ON6UG, was able to receive out in
the car park later that day (see photo right). He was aided
in his lecture by James, G3RUH. Our thanks go to both of
Then came WA1ZMSs
second talk. The room was packed for this and most of us went
away in some amazement over how he had succeeded so well in making
narrowband DX contacts at frequencies up to and over 240GHz.
John, G3XDY (rear)checks out the manual before helping to
test the gear brought to him
was followed by John, G4EAT, who whetted everyones
appetite for 24GHz on hearing how he had put together an
efficient home station on this band, such that he has been able
to work into Holland and Belgium as well as the UK. His present
DX exceeds 200km on this difficult band.
review of the past years microwave activity, including
contests, some useful discussion on the 2006 contest programme,
headed by Steve, G4KNZ, concluded a most excellent weekend.
thanks go to the Martlesham Radio Society for arranging the venue
and the hotel. The unsung heroes of MRS include Graham the
MC, Ian the food, Robin the registration
man and John the test man (aka G3XDY) who gave
up their whole weekend for us to have a good time. We cant
thank you enough!
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