Comet Antenna UHV-6 User manual

1
Operation Manual
UHV-6UHV-6
Multi Band Mobile Antenna for
HF(7, 14, 21, 28MHz), 50, 146 and 446MHz
Features:
★ Developed for transmitting 50, 146 & 446MHz basically. With additional use ofHF-coils+ Elements, UHV-6 can be used
for 6 or 7 bands easily.
★UHV-6 is developed for multi-purpose operation. Frequency characters of 50/146/446MHz, however, will keep always
best condition, irrespective of any additional use of extra coils and elements.
★Combination use, with COMET duplexer, such as CF-530 or CF-706/CF-360, allows multiple TX and RX, at the same
time.
★Free direction Fold-Over is convenient while parking the car in narrow space.
How to fold down the antenna
Specications:
Frequencies: 7,14(option), 21, 28, 50, 146 & 446MHz
Gain: HF 50MHz/0dB, 146/2.15dBi, 446/5.5dBi
V.SWR: Less than 1:1.6(50/146/446MHz 1:1.5)
Impedance: 50Ω
Max.Power: 120W/SSB(50+146MHz-200W/SSB)
Weight: 460(min.) - 580g(max.)
Length: 1.9m(max. at 7MHz operation)
Frequency Adjustment:
★50/146/446MHz. Basically, no adjustment is required.
1) In case of 50 / 146MHz, ner freq. control can be done, adjusting length of Element. Please unfasten the Ele. Fix
Screw.
2) HF bands Antenna length is shorted at each loading coils. Freq. control at each HF bands can be done, by adjusting
the length of each adjust Elements, extending or cutting little by little. When the elements were cut too much by
mistake, please use extra elements(90mm/2pcs. 550mm/1pcs.) involved in the package.
Frequency Shift by each 1cm are:
7MHz.........0.042MHz
14MHz.........0.25MHz
21MHz.........0.35MHz
28MHz.........0.5MHz
Note & Remarks
1. Please read through this Operation Manual initially, before assembling start, and find out the desired Frequency
Combination.
2. model UHV-6 includes many components. Before driving start, please conrm tight fastening of each Set Screws.
Turn!
Lift up!
Fold down,
Any direction!
1st edition. Mul 2022. Printed in JAPAN.
Copyright (C) 2022 COMET Co.,LTD.
All Rights Reserved.
COMET CO.,LTD.
4-18-2,Tsuji,Minami-ku,SaitamaCity,Saitama-Pref336-0026JAPAN
TEL:[phone]FAX:[phone]
URL:https://www.comet-ant.co.jp

2
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
144 145 146
S
W
R
Freq.(MHz)
2.0
1.5 1.0
50 52 54
S
W
R
Freq.(MHz)
51 53
2.0
1.5 1.0
144 145 146
S
W
R
Freq.(MHz)
2.0
1.5 1.0
50 52 54
S
W
R
Freq.(MHz)
51 53
2.0
1.5 1.0
144 145 146
S
W
R
Freq.(MHz)
2.0
1.5 1.0
50 52 54
S
W
R
Freq.(MHz)
51 53
2.0
1.5 1.0
144 145 146
S
W
R
Freq.(MHz)
2.0
1.5 1.0
50 52 54
S
W
R
Freq.(MHz)
51 53
2.0
1.5 1.0
144 145 146
S
W
R
Freq.(MHz)
2.0
1.5 1.0
50 52 54
S
W
R
Freq.(MHz)
51 53
2.0
1.5 1.0
28 29 30
S
W
R
Freq.(MHz)
28.5 29.5
2.0
1.5 1.0
21 21.225 21.45
S
W
R
Freq.(MHz)
2.0
1.5 1.0
14 14.175 14.35
S
W
R
Freq.(MHz)
2.0
1.5 1.077.05 7.1
S
W
R
Freq.(MHz)
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wi llarisefrom 25‑30W o p eratio nat
7or14MH z.
50,144,430MHz 28,50,144,430MHz 21,50,144,430MHz 14,50,144,430MHz
7,50,144,430MHz
Sub Element
Element
Ele. Holder
Upper Ele.(4Φx45mm)
50MHｚChoke Coil
430MHｚPhasing Coil
Element
Ele. Fix Screw
Fold-Over
Base Coil
(4Φx405mm) (5Φx310mm)
Ele Holder
Upper Ele. (4Φx45mm)
50MHｚChoke Coil
Element
430MHｚPhasing Coil
Element
Ele. Fix Screw
Fold-Over
Base Coil
(4Φx405mm) (5Φx310mm)
Ele. Holder
Upper Ele. (4Φx45mm)
50MHｚChoke Coil
Element
430MHｚPhasing Coil
Element
Ele. Fix Screw
Fold-Over
Base Coil
(4Φx405mm) (5Φx310mm)
28MHz Coil(L-28)
Ele. Set Screw
28MHz Adjust Ele.
(75mm standard length)
Top-tip
21MHz Coil(L-21)
Ele. Set Screw
21MHz Adjust Ele.
(80mm standard length)
Top-Tip
Ele. Holder
Upper Ele. (4Φx45mm)
50MHｚChoke Coil
Element
430MHｚPhasing Coil
Element
Ele. Fix Screw
Fold-Over
Base Coil
(4Φx405mm) (5Φx310mm)
14MHz Coil(L-14)
Ele. Set Screw
14MHz Adjust Ele.
(80mm standard length)
Top-Tip
Ele. Holder
Upper Ele. (4Φx45mm)
50MHｚChoke Coil
Element
430MHｚPhasing Coil
Element
Ele. Fix Screw
Fold-Over
Base Coil
(4Φx405mm) (5Φx310mm)
7MHz Coil(L-7)
Ele. Set Screw
7MHz Adjust Ele.
(503mm standard length)
Top-Tip

3
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
28 29 30
S
W
R
Freq.(MHz)
28.5 29.5
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
2.0
1.5 1.077.05 7.1
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
430 435 440
S
W
R
Freq.(MHz)
2.0
1.5 1.0
21 21.225 21.45
S
W
R
Freq.(MHz)
2.0
1.5 1.0
S
W
R
Freq.(MHz)
144 145 146
50 52 54
51 53
28 29 30
28.5 29.5
14 14.175 14.35 14 14.175 14.35
144 145 146
50 52 54
51 53
144 145 146
50 52 54
51 53
21 21.225 21.45
144 145 146 144 145 146 144 145 146
50 52 54
51 53 50 52 54
51 53 50 52 54
51 53
28 29 30
28.5 29.5 21 21.225 21.45 14 14.175 14.35
77.05 7.1
77.05 7.1
21,28,50,144,430MHz
14,28,50,144,430MHz 14,21,50,144,430MHz 7,28,50,144,430MHz 7,21,50,144,430MHz 7,14,50,144,430MHz
21MHz Adjust Ele.
(80mm standard length)
Ele. Set Screw
21MHz Coil(L-21)
Element Holder
28MHz Coil(L-28)
Side Adapter Side
Adapter
Upper Element (4Φx45mm)
50MHz Choke Coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
28MHz Adjust Ele.
(75mm standard length)
14MHz Adjust Ele.
(80mm standard length)
Ele. Set Screw
14MHz Coil(L-14)
Element Holder
28MHz Coil(L-28)
Upper Element (4Φx45mm)
50MHz Choke Coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
28MHz Adjust Ele.
(75mm standard length)
14MHz Adjust Ele.
(80mm standard length)
Ele. Set Screw
14MHz Coil(L-14)
Element Holder
21MHz Coil(L-28)
Side Adapter
Upper Element (4Φx45mm)
50MHz Choke Coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
21MHz Adjust Ele.
(80mm standard length)
7MHz Adjust Ele.
(503mm standard length)
Ele. Set Screw
7MHz Coil(L-7)
Element Holder
28MHz Coil(L-28)
Side Adapter
Upper Element (4Φx45mm)
50MHz Choke Coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
28MHz Adjust Ele.
(75mm standard length)
Ele. Set Screw
7MHz Coil(L-7)
Element Holder
21MHz Coil(L-21)
Side Adapter
Upper Element (4Φx45mm)
50MHz Choke Coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
21MHz Adjust Ele.
(80mm standard length)
Ele. Set Screw
7MHz Coil(L-7)
Element Holder
14MHz Coil(L-21)
Side Adapter
Upper Element (4Φx45mm)
50MHz Choke coil
Element (4Φx405mm)
430MHz Phasing Coil
Element (5Φx310mm)
Ele. Fix Screw
Fold-Over
Base Coil
14MHz Adjust Ele.
(80mm standard length)
7MHz Adjust Ele.
(503mm standard length)
7MHz Adjust Ele.
(503mm standard length)
Top-Tip To p-Tip Top-Tip