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QRP
Amateur Radio Station
Roger G3XBM
Burwell,
Nr Cambridge,
UK
QTH
JO02DG, WAB
TL56
G-QRP 1678 ISWL
G-11088
Ex A3554, G8AWG, F0HXF and
G9BGU, G9BIB (ELF/VLF calls)
Updated
18.4.09
Visitor Number
Visit
the G3XBM
blog page
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 Thank
you for visiting this
site. Most of
the content is amateur radio
related, but there
are also pages on small
islands, mirages and our
family history back to 1428 in
Devon. I hope you enjoy the mixture.
If you have suggestions for new content or comments
on the site do put something in the guestbook
or send me an e-mail please. Having now
retired, I'm able to do more QRP ham radio.
My
main interests are (a) simple ham radio construction
(what you can make for next to nothing) and (b) QRP operating, especially
on 10m.
When you've had enough
here, take a visit to some
other sites on the QRP web
ring (see bottom of the
page).
GUESTBOOK
Write | Read | E-mail
G3XBM
Get a free
guestbook
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Propagation
We
are currently still stuck in the minimum between
cycle 23 and 24. Cycle 24 should peak
in Jan 2012 (maybe later now) with a number around 130.
DX
cluster site
- instant hot DX news
Solar report
- latest sunspot count.
Tropo
Map (NW Eu) - VHF/UHF DX tonight?
ARRL propagation report
- updated Friday.
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Geomagnetic
Field
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Solar
X-Rays
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My
amateur radio and family history pages
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HOMEBREW AND HOME BUILT RIGS
FETer
18mW (one FET only!) 80m QRP micro-transceiver
using 14 parts only -
best
DX 30kms
uu80b
80m 500mW micro-transceiver
using just 12
parts-
already heard 200kms away!
Simple
regen
circuit
- how simple can you
make a receiver to hear ham SSB/CW DX?
The
Tenner 10m CW transceiver
-
a simple 5 transistor rig.
DSB10 -
10m simple DSB transceiver, a project in progress
(linked later)
SAQ
converter (VLF) and reception of SAQ - QSL
card now received (see blog pages).
Crystal
Set DX
-
hear the world on HF with free
power radio - best DX heard Australia!
The Fredbox - 10mW 2m AM
matchbox sized handheld -
best DX 160km
The Pixie and Micro80 - 20
parts, 4 transistor, 200mW HF
transceiver - best DX
300km.
Elecraft
K1
- QRP CW rig.
MFJ
Cub
-
a fun little QRP CW rig
ANTENNAS
70cms
Moxon antenna - a small but effective contest
/P antenna built with a coat hanger
Home
Base
10 Antenna- a 10m band wire halo "weekender"
project.
TALK
SLIDES
Kitchen
Sink Radio - radio club talk - next talk
is at Peterborough club 22.7.09
OPERATING
500kHz
(600m) band (with recordings) - just getting active on
TX,
but frequently listen.
28MHz (10m) Band
-
my favourite band of all.
50MHz (6m) Band
-
another favourite. Worked the USA
with QRP this year.
6m
transatlantic QRP success - 5000kms transatlantic
6m QSO with 2.5w ERP
VO1ZA heard
in UK on 6m 20.5.07 - listen to the recording.
432MHz
(70cms) Band - an old favourite, but much
under-used today.
VHF AM operation - listen
for AM on/near 144.55MHz, 50.55MHz, 70.26MHz
Join
the VHF AM Yahoo Group - supporting VHF
AM enthusiasts.
MISCELLANEOUS
Gecophone
1923 crystal set - a 85 yr old receiver
Asus
Eee PC - a tiny 7 inch screened laptop for
around £180
CQ100
transceiver and the QSONET internet radio system
Amateur Radio below
10kHz
VLF/LF
Amateur Radio and
Whistlers
-
a world of real
experimentation.
Miracle
Whip Antenna
-
impressions and results
Long
Wave Non-directional Beacons (NDBs)
Online
80, 40, 20m SDR RX
- check your signal as received in Holland.
COMMERCIAL RIGS
(mostly owned at some time)
IC703
-
the ICOM HF/6m QRP rig
IC202 - the 2m SSB rig that
took over where the Liner 2 left off.
FT817
- Yaesu's HF/VHF/UHF
handheld masterpiece for
QRPers.
FT7 - Yaesu's earlier 10W
HF wonder fron the late 1970s.
HT-200
- QRP rig from Tokyo Hy-Power that has failed
to appear!
EC10 - Eddystone's first
transistor comms receiver from
the late 1960s
Liner 2 - the Belcom rig
that kick-started SSB DXing on
VHF
Mizuho
MX2 - Japanese 200mW 2m SSB handheld.
Heathkit HW30 - the Benton
Harbor Lunchbox 2m AM rig.
Heathkit
HW8 - HF CW QRP rig
Heathkit
Electronic Workshop -my first kit ever built,
Christmas 1961.
DST100
- a heavyweight radio from the 1940s, owner
in the mid 1960s.
G3XBM HAM
HISTORY
Ham radio history at
G3XBM
-
a stroll down the years
My
log books
-
my log books for the last 30
years. 1M-2M .pdf
files
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