Practical Wireless №2 2019.pdf
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Moonraker GPA-80F Antenna Reviewed
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Data Modes - The latest on WSJT-X
WITH
ALL YOUR
FAVOURITE
COLUMNS
,
The UK s Number One Amateur Radio Magazine
A44A Oman
A contest trip for CQWW CW
THE YAESU
FTM-7250DE
REVIEWED
THE SECOND PART IN OUR
SERIES ON YAESU’S
SYSTEM FUSION
PW 70MHz Contest 2018
The complete results
Meteor Vintage
The age and
Valve &Watching
Detecting
meteors the rhombic echoes
heroes ofthrough radio antenna
FEBRUARY 2019
£3.99
ISSN 0141-0857
The New Foundation Licence: What’s Changed
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Having moved QTH, I needed a quick fix HF antenna. My
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FT-4XE............Handy Dual Band.......£59.00
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FT-65E ............Handy Dual Band.......£89.00
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IC-7300 ......HF-6m 100W ..............£1,199.00
IC-7610 ......HF-6m 100W ..............£3,499.00
IC-7410 ......HF-6m 100W ..............£1,489.00
IC-7100 ......HF-70cms ......................£999.00
IC-9100 ......HF-70cms ...................£2,799.00
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IC-7851 ......HF-6m Flagship ..........£9,899.00
IC-9700 ......2m-23cms ..................£1,799.00
IC-V80E......2m Handy......................£129.95
ID-51E........Dual Band D-Star...........£378.00
IC-2730E ....2m/90cms Mobile..........£279.00
ID-4100E....Mobile D-Star ................£299.00
ID-5100E....Mobile D-Star ................£574.00
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The
IC-9700
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Alinco DMR MD5-GPS
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DMR with Dual band
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Includes UK CD data
channel program to get
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£159.95
Noise Free
PS-30
Here is a traditional
analogue 30 Amp
variable voltage
power supply.
Heavy, rugged and
noise free!
£99.00
2 YEAR
3
WARRANTY
Flex-6600M
K3S 1
00W HF-6m Transceiver
The K3S offers great value for money. Still the best analogue transceiver
currently in production, it has great versatilty. Its light weight makes it easy to
carry on DXpeditions. Its performance is legendary and beats any comparable
transceiver, regardless of cost. You are protected against obsolescence by virtue
of regular firmware updates and replacement modules. And you only pay for
what you need! A wide range of options allow you to add a wide range of
features to.
New Models Arrive!
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Top of the range for those who
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• 100W 1.8 - 54MHz
• 8” Touch Screen
• 4 Receivers 30kHz - 54MHz
• Spectrum Dynamic. 155dB
• Contest Pre-selectors
• Diversity Reception
• Panadaptor Zoom
£4999.00
Elecraft K3S Transceivers
K3S/100-K...........100W
Transceiver Kit .........................£2699.95
K3S/10-K.............10W
Transceiver Kit ...........................£2199.95
K3S/100-F
...........100W Transceiver Ready Built............£2849.95
K3S/10-F
.............10W Yransceiver Ready Built .............£2329.95
Flex-6400M
Packed with performance and
versatility. It offers a lot of radio for
your money.
• 100W 1.8 - 54MHz
• 8” Touch Screen
• 2 Receivers 30kHz - 54MHz
• Spectrum Dynamic. 144dB
• Contest Pre-selectors
£2999.00
Flex-6400
This is the perfect answer tp those
who want to try SDR for the first
time, but at the same time, need to
experience top performance and
versatility. There is no touch screed,
because this model is designed to
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• Only 13 oz (0.3kg) - ideal for portable
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• Internal 2.6 Ah, 11 V Li-ion
battery option
Mic & paddle key
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• Internal wide-range ATU option
• Current drain as low as 135mA
• Built-in microphone and speaker
• Advanced DSP provides dual watch,
noise reduction, noise blanking,
autonotch, stereo audio
• 80m - 10m 10 Watts • Versatile software-defined radio (SDR)
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• All modes + Data
• Operates in data modes (PSK31/RTTY)
with or without a PC
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2 Year Warranty
Elecraft KX2
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FlexRadio, the first mainline SDR ham radio manufacturers, now offer the new
fourth generation range of transceivers. Now available as a stand alone unit with
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have the traditional model like the Flex-6400 that is designed for PC only. The
good news is that all units now talk to both windows and Mac based platforms.
Here in Portsmouth we have them on permanent demonstration connected to a
low noise antenna system. Thinking of SDR? The talk to the experts at W&S.
call:
01702 204965
@wsplc
blog.hamradiostore.co.uk
email:
sales@wsplc.com
Waters and Stanton
Waters & Stanton Ltd • Unit 1 • Fitzherbert Spur • Farlington • Portsmouth • PO6 1TT
facebook.com/WatersandStanton
Ham Radio UK’s Largest
LARGEST warehouse • LARGEST stock • LARGEST FREE car park
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The Power to Make Your Signal Louder - Three Great Choices
The Power to Make Your Signal Louder - Three Great Choices
Acom 1010
Single Tube 700W
Ameritron AL-811HXCE
Triple Tubes 600W
Elecraft KPA500
Solid State 500W
A rugged single tube design that has extensive
protection. he tradional internal Pi-Network is
able to match modest VSWRs.
The LED display also enables accurate PEP
indications and it can switch.
£1749.95
The famous Ameritron design from the USA, offers
an economical way to raise your signal level.
The Pi-Network antenna matcher handles modest
VSWR and the three low cost tubes make tube
replacement affordable.
A superb, fast switching (QSK) that produces 500W
plus for as little as 35W drive. Superb protection
against bad handling and no warm up time. The bar
graph gives good PEP indication.
£1399.95
This item is also available in kit form for just:
£2449
£2449
There is Life Beyond The Ham Bands - Top Class Receivers
There is Life Beyond The Ham Bands - Top Class Receivers
Icom IC-R8600
10kHz - 3GHz
AOR AR-8600
100kHz - 3GHz
AOR AR-8200 MkIII
530kHz - 3GHz
This is a great all mode
portable receiver used by
MPT. Wherever you go
you can keep in touch
with Ham, Airband,
Marine etc.
AOR AR-DV10
5100kHz - 1.3GHz
s a ve
£100
Here we have the very
latest technology from
AOR of Japan. As well as
covering the ananlogue
modes, it also covers a
wide range of digital
modes including all the
popular ham digital modes.
A big ‘smart phone’ screen
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this portable receiver.
Building on the IC-7300 technology, this
amazing receiver gives you ham bands
up to 2.4GHz and all the gaps in between.
We include free AC power supply
Japanese quality that offers an all mode
receiver with an amazing cover-age. It is
an ideal companion for any ham shack.
£459.95
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£6299
£999
SPECIAL
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Parametric Receiver
Audio System
TigerTronics
Plug
and Play
USB
The easy way to interface your PC and
radio for data operation. It comes with a
USB lead to match your radio. Just tell us
which radio you have and we will supply
the necessary lead.
MyAntenna
End fed 40-10m or 80m-10m 1kW
•
Rugged Transformer SO-239
•
Low VSWR
• High efficiency 50 Ohm feed
• Can be fine tuned
• Everything you need
• Ready assembled
Heil ‘PRAS’
EFHW-4010 19.2m
£149.95
EFHW-8010 38.4m
£159.95
£119.95
MFJ
Antenna Tuners
MFJ-991B
Auto ATU
Similar to the MFJ-993BRT but without
LCD display, antenna switch and
balanced feed option. Ideal for coax or
end fed wire.
£253.95
MFJ-949 ........Manual ATU 300W .....£199.95
MFJ-948 ........Manual ATU 300W .....£187.95
MFJ-989D ......2KW Manual ..............£451.95
MFJ-994B ......Auto ATU 600W .........£393.95
MFJ-993B ......Auto ATU 3000W .......£299.95
MFJ-929 ........Auto ATU 200W .........£253.95
MFJ-994BRT .. Auto Wire ATU 600W.£439.95
MFJ-998BRT ..Auto Wire ATU 1.5kW.£848.95
MFJ-993BRT ..Auto Wire 300W.........£329.95
MFJ-926BRT ..Auto Wire 200W.........£329.95
KX-33
For KX2, KX3, FT-817 and FT-818
A Power Supply in your Pocket!
AVAIR
For All Occasions
There are times when
you need a simple
VSWR meter that you
can take out portable
or pop in the car. The
Avair range are a
very cost effective
answer.
AV-20
• 1.8 - 200MHz
• Scale 30W / 150W
• 3W for FSD
• Cross Needle
• SO-239
£49.95
AV-40
• 144 - 470MHz
• Scale 15W / 150W
• 3W for FSD
• Cross Needle
• SO-239
This power supply is ideal for taking
around. It fits into your pocket and
plugs directly into Elecraft KX2 and
KX3. Adaptor leads for FT-817/FT-818
and K3/10.
•
4 Amps
•
14V DC out
•
110 / 230V Auto
•
Very Low Noise
£69.95
Here is a complete audio system that
effectively replaces the rudimentary
receiver audio amplifier in your
receiver or transceiver. For maximum
intelligibility the PRAS will work
wonders. Very often a flat audio
response is not what you need. And
while a simple tone control might help,
the parametric design enables much
more complex and versatile response
curves. And if you are having hearing
problems, you can boost just that part
of the spectrum that is causing you
problems.
£469.95
And to complete the
system we include the
Heil powered speaker
as illustrated
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RadioUser
January 2018
13
Contents
Practical Wireless February 2019
●
Volume 95
●
Number 2
●
Issue 1341
On Sale
10th
January
2019
44
64
34 The Morse Mode
34
56 What Next
Colin Redwood G6MXL
passes on
a few pointers regarding QSLing that
newcomers may nd helpful and
which may also be of interest to more
established radio amateurs.
6
Keylines
Don
introduces the
PW
team, mentions
this month’s article on the new licence
syllabus and turns once more to FT8.
Roger Cooke G3LDI
has more to
say about encouraging Morse training
and reports on some very successful
Bootcamps, putting those concepts into
practice.
36 HF Highlights
Steve Telenius-Lowe PJ4DX
reports
plenty of DXpedition activity during
the month, much of it worked by his
correspondents, even those running
QRP.
59 Data Modes
Mike Richards G4WNC
has the latest
on WSJT-X as well as a signi cant
update on SDR developments.
7
News
PW’s
monthly roundup of news from the
UK and internationally, including new
products, club news and recent events.
62 A CQWW Contest Trip to Oman
Don G3XTT
was fortunate enough to
operate from Oman in the November
CQWW CW Contest. He relates his
experiences, with some information
about the state of amateur radio in that
fascinating country.
42 Kits & Modules
Geoff Theasby G8BMI
has two more
cheap and cheerful projects for those
dull evenings when the bands are closed!
12 Review − The Yaesu FTM-7250DE
Continuing his look at Yaesu’s System
Fusion,
Tim Kirby G4VXE
reviews
the FTM-7250DE Dual-band Fusion
Transceiver.
43 Radio Bookstore
Your one-stop shop for hobby-related
titles, biographies, reference titles,
historical accounts, technical advice and
successful building projects.
64 Starting Over
Lee Aldridge G4EJB
explores a new
dimension to the hobby for him and
relates more developments in the shack.
15 The Tenth Practical Wireless
70MHz Contest
Contest Manager
Colin Redwood
G6MXL
has the results of the 2018
contest.
44 Carrying on the Practical Way
Wide-spaced variable capacitors,
suitable for high-power ATUs and similar
applications, are expensive and dif cult
to source nowadays.
Hamish Storie
MM0GWO
explains how to roll your own.
66 Exploring New Fields
Joe Chester MW1MWD
gets up and
running once his KX3 nally arrives.
18 Feature – Meteor Watching
Meteors are of interest to radio amateurs,
particularly those interested in using
meteor scatter propagation.
Tony Jones
G7ETW
explains how you can detect
them using radio echoes.
70 Readers’ Letters
Lots of feedback this month on earlier
articles and letters, along with new
topics, including reissued callsigns
and whether a rig needs two separate
receivers.
47 Valve & Vintage
Bernard Nock G4BXD
concludes his
overview Pye PMR sets.
24 Review – the Moonraker GPA-80F
Vertical Antenna
Editor Don G3XTT
looks at an antenna
that offers a cost-effective way of getting
on to the HF bands from a small garden.
50 In the Shop
Harry Leeming G3LLL
covers PA valves,
receiver noise, diodes and a modern
parable in another packed column.
75 Rallies
Locate a rally or event near you; we have
our usual comprehensive list.
28 The World of VHF
Tim Kirby G4VXE
re ects on a year
of FT8 on the 2m band, has the usual
band reports and news of the Fox -1Cliff
satellite.
53 The New Foundation Licence
Tony Jones G7ETW
offers a guide to the
changes to the new Foundation Licence
examination syllabus, such that clubs
can modify their training programmes
accordingly.
Copyright © Warners Group Publications plc 2019. Copyright in all drawings, logos, photographs and articles published in Practical Wireless is fully protected
and reproduction in whole or part is expressly forbidden. All reasonable precautions are taken by Practical Wireless to ensure that the advice and data given to
our readers are reliable. We cannot however guarantee it and we cannot accept legal responsibility for it. Prices are those current as we go to press. Published on
the second Thursday of each month by Warners Group Publications plc Printed in England by Warners Midlands plc. Tel: 01778 395100. Distributed by Warners
Distribution, West Street, Bourne, Lincs, PE10 9PH. Tel: 01778 391000, Web: www.warnersgroup.co.uk
Practical Wireless is sold subject to the following conditions, namely that it shall not, without written consent of the publishers rst having been given, be lent,
re-sold, hired out or otherwise disposed of by way of trade at more than the recommended selling price shown on the cover, and that it shall not be lent, re-sold,
hired out or otherwise disposed of in a mutilated condition or in any unauthorised cover by way of Trade, or af xed to or as part of any publication or advertising,
literary or pictorial matter whatsoever.
February 2019
Practical Wireless
5
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