Tonna F9FT User manual

ASSEMBLY INSTRUCTIONS
1296/23
FOFT
ANTENNA
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IMPORTANT
When opening the package, check and compare al] parts and hardware with
enclosed part list.
ELEMENT ASSEMBLY
For best efficiency, it is necessary to keep elements at some distance
from boom (refer to medalion n° 2).
1) Place element in stand-off, with a smal] hammer, gently knock the free
tip of element, to thrust element through hole (2A and 2B).
2) Slide element till proper centering is reached (2C).
Operation must be carried out with utmost care to avoid unwanted bending
of elements.
ANTENNA ASSEMBLY
The red end indicates the front of the antenna, the black end, the rear,
directors are counted up from rear to front.
Refer to assembly diagram for proper mounting :
1) Join the two boom sections together (see medalion n° 3 on diagram).
Use M5 screw n°6 and clamps n°9 and n°10.
2) Element assembly : Each element is marked with a color (see general
diagram and color code in element table).
Refer to medalion 3 for proper mounting of stand-off on boom. Make sure
the bump fits into the positioning hole.
CAUTION
The reflector is the longest element, each successive director is either
the same or shorter than the prior director. Make sure directors are cor-
rectly mounted by checking the color order, according to code.
If elements are not properly mounted, performance of the antenna may be
drastically reduced.
3) Driven element assembly :
A short piece of coay (RG 213/U), is factory mounted on the driven ele-
ment. Run the coax through the 11 mm (7/16 ") hole and attach the driven
element with the special screws n° 7 (see medalion n® 1).
4) Mount the supporting bracket on the boom, using M5 screw n° 8, and
clamps n° 9 and n° 10 (see medalion n° 5).
ATTACHING THE FEED LINE
A very high quality, professional type, coax cable must be used. Remernber
the RG 213/U exhibits a loss of 29 dB/100 m (9,7 dB:100') at 1,300 MHz.
If better coax cable is available, use it. A type N connector (UG 21 B/U)
must be mounted at the end of the short lengh of coax, runing out of the
driven element.
CAUTION
The connector must be mounted ONLY ONCE the coax has been run through
the 11 mm (7/16") mounting hole !!
This coax length is not randomly cut : fro stacking purposes, this length
is an integer number of electrical half-wavelengths, and is the same on
all manufactured antennas.

For proper mounting coax connector, see connector mounting instructions,
for the UG 21B/U. On the main feed-line (RG 213/U or better) a type N
female connector (UG 23B/U) must be used. If bigger coax is used, use a
special connector with same nose as UG 23/B/U.
MOUNTING OF ANTENNA TO MAST :
CAUTION
No piece of mast or tubing must run through the element plane. Performance
may be reduced !
It is recommended that the antenna be mounted on top of the mast, or if not
possible, along the mast, using an offset arm, about 1,5 wavelength long
minimum. Mast up to 54 mm (1" 1/8) diameter are accepted by the attaching
set (see medalion n° 6).
It is also recommended that the antenna be placed in direction of dominant
winds when not in use.
STACKING
To simplify the stacking set-up, the short length of coax is part of the
phasing harness itself.
In order to put the antennas in phase, make sure the plastic injection studs,
on the driven element stand-off, are all facing to the same side
A special quarter-wave power splitter is available in two version :
4 jnputs 50 Ohms, one output 50 Ohms : part n° 29423
Output available in 75 Ohms upon request.
A complete stacking frame kit, for three wavelength spacing is also available,
part n° 20016 for horizontal polarization, ant 20017 for vertical polarization.
The power splitter is designed for stacking four antennas. A combination of
five of these splitters allows stacking of 16 antennas.
NOTES
1) Do not use spacing shorter than 3 wavelengths (700 mm, 27" )
2) The complete set : 4 antennas, part n° 20423
1 power splitter, part n° 29423
1 stacking frame, part n° 20016
Is directly available, with part n° 20696
COUPER LA TRESSE
SOQUOER A L'ETAIN
eal

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PART LIST
Diagram n° Description Quantity
1 Rear boom section 1
2 Front boom section 1
3 Black plastic cap (rear) 2
4 Front plastic cap (front) 2
5 Supporting Bracket 1
6 Screw = M5 x 25 1
7 Driven element mounting screw 2
8 Screw : M5 x 40 Zz
9 Short clamp, smooth hole 5
10 Short clamp,tapped hole (M5) 3
12 Mounting U-Clamp, M6 thread 1
13 Tightening clamp 2
14 "Alligator" clamp 1
15 Nut : M6 2
- First bag contains al] the elements, the 2 driven element mounting
screws and the N connector (UG21B/U).
- Second bag contains al] the element stand-offs, 22 in total.
- Third bag contains mast mounting set (hardware n° 12, 13, 14 and 15).
ELEMENT LENGTHS
mm Inches Color-code Quantity
R 115 Amis /32 Black 1
DE # 102 4 1/64 (no color) 1
D1 99 3 57/64 Brown 1
D2 96 Sed /32 Red 1
D3 95 3 47/64 Orange 1
D4 94 3 45/64 Yellow 1
D5 93 3 21/32 Green 1
D6 92 SOLS Blue 1
07 91 3 37/64 Violet i]
D8 to D2190 3 35/64 White 14
* The short length of coax is delivered factory mounted on
the driven element (DE).
The type N connector (UG 21 B/U), is delivered together
with the antenna.

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1290 - 1300 MHz 23 ELEMENT FSFT ANTENNA
Part #: 20623 ("DX")
ELECTRICAL DATA:
Effective electrical length: 7.43 wavelengths
Isotropic gain: 16.0 dB
Aperture angle at -3 dB: E plane: 2 x 10.1 degrees
H plane: 2 x 10.3 degrees
First side lobe set: E plane: -10.6 dB at 27 degrees
H plane: -9.3 dB at 27 degrees
Back to front ratio: =21.1 dB
Average diffuse radiation: E plane: i391, dB
H plane: =20) dB
NOTE: All above data are given for a frequency of 1296.0 MHz.
Bandwitdh at -1 dB: 1246.4 thru 1324.2 MHz
Impedance: 50 Ohm
SVR (1290 thru 1300 MHz): better than 1.25/1
Maximum acceptable RF power: 300 Watts
STACKING:
Spacings for two antennas (element center to element center, at 1296.0 MHz):
Best gain increase (+2.8 to +3.0 dB):
E plane: 3.19 wavelengths (0.74 m, 29" )
H plane: 2.54 wavelengths (0.66 mr 25" 3/4)
Best side lobe compromise (-0.16 dB from optimum in E plane):
E & H plane: 2.84 wavelengths (0.66 m, 25" 3/4)
MECHANICAL DATA:
Length: 1.75 meters (5’ 8" 7/8)
Weight: 4 kilogrammes (3 lbs)
Approximate wind load:
25 m/s ( 90 km/h,» 55 mph): horizontal polarization : 2.3 daN
vertical polarization : 2.0 daN
45 a/s (160 km/h» 100 mph): horizontal polarization : 7.6 dan
vertical polarization : 6.3 daN
Note: 1 daN (decanewton) = 1.02 kgf = 2.25 pound-force.

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