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ALL
BAND HF DIPOLE
The
all
band H.F. dipole is operated over the entire high frequency band
(1.8 -
30MHz)
ALL
BAND HF DIPOLE MK2
Improved
All Band HF Doublet was constructed for
operated over the entire high frequency band
(1.8 - 30MHz).
ALL
BAND HF DIPOLE MK2 - ALTERNATIVE CONFIG
With a view to
get better performance particularly on lower frequency bands, alternate
configuration of the
main HF All Band Doublet antenna.
ALL
BAND HF DIPOLE MK3
The
All Band HF Doublet Mk3 is the same as the Mk2 version with the
inclusion of a balun at the interface from the coax to the open wire
feed-line.
ACTIVE
ANTENNA - VERSION 1
Modified
PA0RDT compact active wide-band receiving
antenna for lower frequency bands
from 10 kHz to approximately 10MHz.
ACTIVE
ANTENNA - VERSION 2
PA0RDT compact active wide-band receiving
antenna for lower frequency bands
from 10 kHz to approximately 10MHz.
AMPLIFIER,
BROADBAND 500kHz - 2GHz
Construction of a
Mini Kits GALI-74 Broadband Driver-a
mp kit.
ATTENUATOR
- STANDARD
40dB
Standard
Attenuator suitable for 0 - 30MHz.
ATTENUATOR
- STEP
Step
Attenuator suitable for 0 - 30MHz.
ANTENNA
/ RADIO SWITCH
RF 3
position switch for either antenna switching or transceiver
switching 0 - 150MHz.
ANTENNA
/ RADIO SWITCH_Mk 2
RF 3
position switch for either antenna switching or transceiver
switching 0 - 150MHz. This unit has superior port isolation.
BALUN
1:1 CHOKE & 1:4 STEP UP BALUN
HF
ladder feed-line to coaxial cable combination choke and 1:4 balun. (0.1MHz -
30MHz).
BALUN
1:1 CHOKING
Choking balun
for lower HF and MF bands. (200kHz -
10MHz).
CHOKING
1:1 BALUN - HF BANDS
Reisert choking balun
for HF and upper MF bands. (1.0MHz -
30MHz). FT240-43 Ferrite Toroid Core.
CHOKING
1:1 BALUN - HF BANDS
Reisert choking balun
for HF and upper MF bands. (1.5MHz -
30MHz). FT140-43 Ferrite Toroid Core.
CHOKING
1:1 BALUN - LOW VHF BAND
Choking balun
for upper HF to lower VHF bands. (10MHz -
60MHz). FT140-43 Ferrite Toroid
Core.
BALUN
1:1 CURRENT
1:1
Guanella Current
balun
using a L15 ferrite core
(1.8 -
30MHz).
BALUN
1:4 CURRENT
1:4
Guanella Current
balun
using a L15 ferrite core
(1.8 -
30MHz).
BALUN
1:4 SINGLE CORE CURRENT
1:4 Guanella Current
Balun for HF and
MF bands using a
single FT240-43
ferrite toroid cores. (0.3MHz -
30MHz).
BALUN
1:1 VOLTAGE
1:1
Ruthroff voltage balun using a
T-200-2 powdered iron toroid
core (1.8 -
30MHz).
BALUN
2.5:1 VOLTAGE
2.5:1
Voltage balun using a
FT140-43 ferrite toroid
core (1.8 -
30MHz).
BALUN
4:1 VOLTAGE
4:1
Ruthroff voltage balun using a
T-200-2 powdered iron toroid
core (1.8 - 30MHz).
BALUN
6:1 VOLTAGE - VERSION 1
6:1
Voltage balun using a L15 ferrite
toroid
core (1.8 -
30MHz).
BALUN
6:1 VOLTAGE - VERSION 2
6:1
Voltage balun using a FT140-43 Ferrite Toroid
Core (1.8 -
30MHz).
BALUN
9:1 VOLTAGE - VERSION 1
9:1
Voltage balun using a L15 ferrite
toroid
core (1.8 -
30MHz).
BALUN
9:1 VOLTAGE - VERSION 2
9:1
Voltage balun using a FT140-43 Ferrite Toroid
Core (0.5 - 60MHz).
CLOVER-LEAF
ANTENNA - 146.5MHz.
146MHz
3 Petal Cloverleaf (Big Wheel) tower mounted antenna.
CLOVER-LEAF
ANTENNA - 435.0MHz.
435MHz
5 Petal Cloverleaf (Big Wheel) tower mounted antenna.
DC
CABLE TO SUIT TYPICAL HF RADIO
12Volt
DC cable to suit radios with the 6 pin Molex plug
DC
DISTRIBUTION BOARD
12Volt
DC Distribution Board using 30a Anderson connectors and including
reverse polarity protection.
DC
DISTRIBUTION BOARD FOR LOCAL REPEATER
12Volt
DC Distribution Board for VK6RAV Repeater.
DUAL
BAND 40/15m DIPOLE
Dual
band dipole for 40m (7 - 7.3 MHz) and 15m (21 - 21.45MHz) bands.
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DUAL
BAND J-POLE ANTENNA
A
dual band J pole antenna is operational over the entire 6Mtr band
(50 - 54MHz) and the entire 2Mtr band (144 - 148MHz)
GROUND
PLANE ANTENNA - 1λ4
- 14MHz
20m
BAND (14MHz)
1/4 portable ground plane antenna.
GROUND
PLANE ANTENNA - 1λ/4
-146MHz
1/4
wave ground plane to be designed for approximately 146.5MHz.
GROUND
PLANE ANTENNA
- 5λ/8 - 146MHz
5λ/8
wave ground plane to be designed for approximately 146.5MHz.
GROUND
PLANE ANTENNA - 435MHz
1λ/4
wave ground plane to be designed for 435MHz.
HF
INVERTED L PORTABLE ANTENNA
Fast
deployable HF
portable end fed inverted L antenna (1.8
- 54MHz).
HF TACTICAL BROADBAND ANTENNA
Fast
deployable HF
Tactical Broadband Antenna (2 -
30MHz).
LONG
WIRE ANTENNA
Long
wire antenna for portable operations.
MASTHEAD
COAX CABLE POWER FEED UNIT
Masthead
equipment coaxial cable 12v power feed unit.
PATCH
ANTENNA FOR 436MHz
The
patch antenna achieves outstanding results from what is an extremely
compact antenna.
R.F.
CURRENT METER
This
R.F. current meter was developed to assist in measuring line
currents in balance feed lines as used in the All Band HF Antenna.
RADIO
SHACK CONSTRUCTION
Construction of
the radio shack from 2008
to 2010.
RADIO
TOWER DESIGN 2010
Radio
Tower Design and Construction 2010.
RINGO
ANTENNA - 52MHz
Reworked old 2m band ringo antenna for the
6m band.
Design and Construction 2019.
SOFTWARE DEFINED
RADIO
SDR
using the
Realtek RLT2832U USB Digital Terrestrial TV
(DVB-T) tuner dongle to receive VHF/UHF (64~1700 MHz)
SOFTWARE DEFINED
RADIO MF/HF UP CONVERTER
0
- 50MHz spectrum up 100 - 150MHz converter to suit SDR
using the
Realtek
(DVB-T) tuner dongle.
SKEW
PLANAR WHEEL ANTENNA
Skew
Planar Wheel Antenna for 435MHz.
SLOPER
ANTENNA - 10m BAND
Guy
wire sloper antenna suitable for the 10m band.
SLOPER
ANTENNA - 40 & 15m BANDS
Guy
wire sloper antenna suitable for both 40 and 15m bands.
SOUND
CARD INTERFACE
Computer
Sound-card
Interface for TS-430S
SUPER
J-POLE ANTENNA
The
super J pole antenna is a co-linear vertical antenna
for 435MHz.
T-MATCH
ATU
1.8
- 30MHz antenna matching unit.
TWIN-LEAD
(LADDER LINE) FEED
Twin-lead feed ladder line replacement -
September 2023
TRANSVERTER
FOR THE 630 METER BAND
630M band (472kHz-479kHz)
Transverter. Under
development
TRAVELLING
WAVE ANTENNA - VERSION#1
Multi-band
Travelling Wave Antenna (TWA) for portable operations. Under
development
TRAVELLING
WAVE ANTENNA (2 - 30MHz) - VERSION#2
Multi-band
HF Travelling Wave Dipole (2 - 30MHz)
for portable operations.
UNUN
9:1 VOLTAGE
9:1 voltage unun
using a
T-200-2 powdered iron toroid
core
(1.8 -
30MHz).
UNUN
9:1 VOLTAGE VERSION 2
9:1 voltage unun
using a L15 ferrite core (1.8 -
30MHz).
UNUN
9:1 VOLTAGE VERSION 3
9:1 voltage unun
using a FT140-43 ferrite core (0.5 -
60MHz).
YAGI
UDA ANTENNA - 255MHZ - 5 ELEMENT
5 Element Yagi-Uda
antenna for 250MHz to 260MHz.
YAGI
UDA ANTENNA - 435MHZ - 6 ELEMENT
6
Element Yagi-Uda
antenna for 430MHz to 440MHz.
VHF/UHF
GENERIC ANTENNA MOUNT
VHF/UHF
Generic
Antenna Mount.
UHF
MASTHEAD PREAMPLIFIER KIT FOR 70cm BAND
Construction
of a 70cm band
Mini Kits EME221-70CM pre-amp kit.
Z-MATCH
ATU
1.8
- 30MHz antenna matching unit.
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