10830 Manual
TM
Gain-Masterä is a 0.625l high tech fiberglass base station
antenna for CB and 10m amateur band, completely designed
by electromagnetic simulation to achieve the maximum gain
and optimize the radiation pattern and bandwidth.
Engineered with the most advanced available technologies it
is completly manufactured in Italy with high quality materials.
The new design of the radiant element (Patent Pending)
works like a central feeded dipole so all RF currents on the
radiator are in-phase and the ground plane radials are not
necessary. The coaxial coil at the bottom works like RF-choke
for the optimum decoupling from mast and feeding line.
Made of telescopic fiberglass tubes, it is DC-grounded for the
best protection from static discharges.
Gain-Masterä is the new reference standard in its class of
antennas.
Electrical Data
Type
0.625 l center feeded vertical dipole
Frequency Range
25.5 - 30 MHz
@ SWR £ 2.0
400 CB channel & 10m ham band
Impedance
50 W
Radiation
Omnidirectional
Polarization
Linear Vertical
Max Gain on the horizon 1 to 2 dB higher than conventional 5/8 l
Max Power
500 Watts (CW) continuous
1000 Watts (CW) short time
Ligthning protection
All metal parts are DC-grounded, the
inner conductor shows a DC-short
Connector
UHF-female, PTFE insulator & gold
plated central pin
Mechanical Data
Materials
Whip made of white fiberglass four
sections composite tube,
PATENT
PENDING
radiator made of copper wire and low
loss coax cable, stainless steel hardware,
anodized AW6060 aluminium,
UV stabilized thermoplastic
Wind Resistance
up to 160 Km/h
Height (approx.)
7360mm with bracket, radiator 6850mm
Packaging Dimensions
1950 x 100 x 130 mm
Weight (approx.)
Mounting mast
3 Kg
Æ 35-54 mm side mast with “V” bolt
SIRIO
More technical information on: www.gain-master.it
HI-QUALITY ANTENNAS MADE IN ITALY.
Gain-Masterä is a registered Trade Mark of SIRIO antenne s.r.l.
S
antenne
ID406, pag 1/4
ITALIANO
ENGLISH
Gentile Cliente, vogliamo ringraziarla per aver acquistato un
antenna SIRIO Gain-Masterä, siamo sicuri che le darà grandi
soddisfazioni perché è stata progettata con le più avanzate
tecnologie attualmente disponibili ed è costruita interamente in
Italia con materiali di elevata qualità.
Gain-Masterä è il concentrato di quarant'anni di esperienza
nel campo delle antenne che ci ha permesso di depositare la
domanda di BREVETTO per questo prodotto unico che rimarrà
uno standard di riferimento per molti anni a venire.
Dear Customer, we thank you for purchasing a SIRIO GainMasterä antenna, we are sure you will give great satisfaction
because it was designed with the most advanced
technologies currently available and it's entirely built in Italy
with high quality materials.
Gain-Masterä is the result of four decades of experience in
the antennas field; that allowed us to file the application
PATENT for this unique product that will remain a standard
reference for many years to come.
Come funziona Gain-Masterä (Brevetto Pendente)
Come mostrato in Fig.1 il segnale RF proveniente dal
generatore percorre il cavo coassiale della bobina d'arresto,
quindi prosegue lungo la prima parte dello stilo fino ad
incontrare lo stub coassiale che funziona da adattatore
d'impedenza, quindi prosegue fino ad arrivare alla
terminazione della linea coassiale (centro di fase dell'antenna).
A questo punto la parte di segnale presente sul conduttore
centrale attraversa il condensatore e si propaga lungo la metà
superiore della parte radiante mentre le correnti RF, che
viaggiavano all'interno della schermatura del cavo, fuoriescono
scorrendo all'esterno della schermatura e ridiscendono verso
la bobina d'arresto dove l'elevata impedenza della bobina fa si
che si arrestino (funzionamento equivalente ad un dipolo
alimentato nel suo centro).
How Gain-Masterä works (Patent Pending)
As shown in Fig.1 the RF signal started from the generator
run through the coaxial cable of the choke coil, then continue
along the first part of the whip until it meet the coaxial stub that
works as impedance matching, and then continue up to the
termination of the coaxial line (antenna phase centre).
At this point, the signal on the inner conductor crosses the
capacitor and propagates along the upper half of the radiation
element. The RF current travelling inside the cable shield,
protruding outside the screen and descend toward the choke
coil where the high impedance stop it (in fact, it's equivalent to
a centre-fed dipole).
Perché Gain-Masterä ha prestazioni migliori rispetto ad
una 5/8l convenzionale
In Fig.2 è illustrata la distribuzione di corrente di SIRIO GainMasterä. La parte radiante di nuova concezione (Brevetto
Pendente) si comporta come un dipolo alimentato al centro, di
conseguenza tutte le correnti RF risultano in fase e concordi tra
loro. Questo accorgimento ci ha permesso di aumentare
l'efficienza della parte radiante di 0.6dB rispetto al guadagno
massimo di un antenna 5/8l convenzionale di pari lunghezza e
contemporaneamente di avere un diagramma di irradiazione
simile ad un dipolo con il suo massimo nel piano orizzontale
(vedi confronto con antenna 5/8l convenzionale Fig.3). GainMasterä presenta il massimo guadagno ottenibile per
un'antenna 5/8l e grazie al suo angolo di radiazione
perfettamente orizzontale permette di migliorare le prestazioni,
rispetto alle migliori antenne concorrenti, di almeno 1-2dB, che
corrispondono al 26%-58% di segnale in più, come risulta
evidente dal confronto diretto.
Why Gain-Masterä has better performance compared to
a conventional 5/8l
Fig.2 shows the current distribution of SIRIO Gain-Masterä.
The new design of radiant element (Patent Pending) behaves
as a centre-fed dipole, hence all currents are in phase. This
arrangement allowed us to increase the maximum gain of
0.6dB in comparison to a conventional 5/8l antenna with
equal length; also it allowed us to have a radiation pattern
similar to a dipole which has its maximum gain on the horizon
(See comparison with conventional 5/8l antenna, Fig.3).
Gain-Masterä has the highest available gain for 5/8l
antenna and due to its angle of radiation perfectly horizontal,
can improve performance, better than competing antennas,
at least 1-2dB, corresponding to 26%-58% more signal, as
shown by direct comparison.
Altri vantaggi di Gain-Masterä sono:
E' realizzata e assemblata completamente in Italia con i migliori
materiali disponibili, a partire dallo stilo che è realizzato in
quattro sezioni da 1.92m di tubi telescopici compositi in fibra di
vetro con parete a triplo strato che rende Gain-Masterä molto
più resistente e rigida rispetto alle concorrenti. Non necessita di
radiali ground plane in quanto è un antenna bilanciata che
funziona come un dipolo alimentato al centro. E' protetta contro
le scariche statiche quindi risulta in cortocircuito DC.Grazie alla
sua bobina di arresto (RF-Choke) posta alla base, GainMasterä risulta perfettamente disaccoppiata dalla sua
struttura di sostegno (pali, tralicci, etc.) con il beneficio di
mantenere inalterati sia l'impedenza che il diagramma di
irradiazione.Possiede una banda eccezionalmente larga di
oltre 4,5MHz (400 canali CB) da 25.5 a 30MHz e non necessita
di alcuna taratura entro tutta la banda dichiarata. Accetta una
potenza massima continuata di 500Watts RMS.
Other Gain-Masterä advantages are:
It's completely made and assembled in Italy with the finest
materials available, starting from the whip which is carried out
in four sections of 1.92m telescopic tubes with triple-layer
fibreglass. It makes Gain-Masterä much more durable and
rigid then the competitors.
It does not require ground plane radials because it is a
balanced antenna that function as a centre-fed dipole. It's
protected against static discharge by DC-short.
Thanks to it's cable coil (RF-Choke) at the base, GainMasterä is fully decoupled from its supporting structure
(poles, towers, etc.) with the benefit of preserving both the
impedance that the radiation pattern.
It has a exceptionally bandwidth of over 4.5MHz (400 CB
channels) from 25.5 to 30MHz and does not requires any
tuning. It accepts a maximum continuous power of 500Watts
RMS.
SIRIO
More technical information on: www.gain-master.it
HI-QUALITY ANTENNAS MADE IN ITALY.
Gain-Masterä is a registered Trade Mark of SIRIO antenne s.r.l.
S
antenne
Id406, pag 2/4
Gain-Masterä Technical Informations
RF current
Schematic diagram
TYPICAL RADIATION PATTERN
90
0 dB
1
120
60
2
24° Max radiation angle
of conventional 5/8l
3
=
6
150
30
10
Capacitor
Electrical Length
5/8 or 0,625 l
effective radiator
length 6.9m
20
30
180
=
Impedance
matching stub
-150
-30
0° Max radiation angle
of Gain-Master
1-2dB more power gain
Low Loss
Coaxial RF choke
-120
-60
Gain-Master
-90
Conventional 5/8
To RF generator
Fig.1
Fig.2
TYPICAL S.W.R. RESPONSE
S.W.R.
Model: Gain-Master
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
24.75
File: F-01-030
25.5-30 MHz band @ SWR<2
27.75
Fig.4
30.75
f.(MHz)
Parts List
Part No
Pos
Q.ty
1
1
Description
2
1
3
1
CH01407 8mm open key
4
5
6
7
1
1
1
3
CF02017
CF02117
CF02217
FA00200
8
1
TE06900 Ø 14.8x17 radiator fixing part
9
10
11
12
1
1
1
1
VT13200
CH00800
TE06816
IE560
13
2
VT01300 M6x20 AISI304 exagonal head screw
14
2
ST04500 Extruded aluminium bracket
SL05700 Wired coaxial radiator
-
Bottom section with coil
12x15x1920 fiberglass tube
15.4x19x1920 fiberglass tube
19.5x23.5x1920 fiberglass tube
Ø 16-27mm AISI316 hose clamps
M4x6 AISI304 set screw cup point
2 mm Allen key
Ø 14.3 PVC top cap
self-adhering “DANGER” label
15
2
TI03100
16
6
DA01400 M6 AISI304 hexagonal nut
17
6
RO04200 M6 AISI304 spring lock washer
M6x188 AISI304 V-bolt
Fig.3
SAFETY FIRST: YOU CAN BE KILLED IF THIS ANTENNA
COMES NEAR ELECTRIC POWER LINES. BEFORE
DOING INSTALLATION, READ THIS MANUAL AND THE
SUPPLIED SEPARATE SAFETY MULTI LANGUAGE
INFORMATION SHEET.
SUGGESTION: We recommend to assemble the antenna on
a flat ground open area. Use a good coax cable like BELDEN
H1000R, AIRCOM PLUS or RG-213 as short as possible to
get the best performance and we recommend to mount your
antenna at minimum 3 meters above the roof, as far as
possible from walls, power lines and other antennas.
TROUBLESHOOTING: Gain-Master is a pre-tuned antenna.
It is factory checked one by one and it does not need any
regulation. If you are unable to obtain an accettable SWR
reading from your antenna, follow these suggestions to try to
solve the problem.
# Check the coaxial cable and all its connections. Be sure that
the cable is not pinched, shorted, broken or kinked.
# Check if the equipments (CB radio and SWR-meter) work
properly. Make use of owner’s manual for assistance in
operating it.
# Be sure that the antenna is installed at least 3 meters above
the roof of the nearest building and 5-6 meters above or
away from any metal objects in the area.
Mounting needed tools:
n. 1
n. 1
n. 1
n. 1
n. 1
tape rules (meter)
screwdriver flat point
10 mm open jaw wrench
plier
electrical tape
SIRIO
More technical information on: www.gain-master.it
HI-QUALITY ANTENNAS MADE IN ITALY.
Gain-Masterä is a registered Trade Mark of SIRIO antenne s.r.l.
S
antenne
Id406, pag 3/4
Gain-Masterä Mounting Instructions
Fase/Step 1
Fase/Step 2
Fase/Step 3
11
10
4
8 9
Fase/Step 4
5
Avvitare i connettori
BEN SERRATI!
Screw on the connectors
WELL LOCKED!
1800mm
1
Sfilare il tubo fino a
tendere il cavo quindi
rientrare di 1÷1.5cm.
NOTA: IL CAVO NON
DEVE ESSERE TESO
Pull the tube until
then stretch the cable
and then return 1÷1.5cm.
REMARK: THE CABLE
MUST NOT BE TIGHT
7
3
Sigillare entrambi i
connettori con nastro
adesivo in PVC
Seal both connectors
with electrical
PVC tape
Fascetta
BEN SERRATA!
Hose clamp
WELL LOCKED!
6
1800mm
7
Fascetta BEN SERRATA!
Hose clamp WELL LOCKED!
Fase/
Step 5
7
12
Fascetta
BEN SERRATA!
Hose clamp
WELL LOCKED!
13
14
2
16
15
ATTENZIONE!
Non piegare o schiacciare
il cavo coassiale
ATTENTION!
Do not bend or pinch
the coaxial cable.
17
Robusto palo di montaggio
Æ 35-54mm (non fornito)
Strong steel mast
Æ 35-54mm (not supplied)
SIRIO
More technical information on: www.gain-master.it
HI-QUALITY ANTENNAS MADE IN ITALY.
Gain-Masterä is a registered Trade Mark of SIRIO antenne s.r.l.
S
antenne
B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 15/07/2010 - Cod. ID406, pag. 4/4
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