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BILAL ISOTRON 40, Instruction Manual

Introducing the BILAL ISOTRON 40 Instruction Manual – your ultimate guide to unlock the full potential of your product! Experience seamless operations and unparalleled performance with this comprehensive manual. Download it for free from manualshive.com to effortlessly set up, navigate, and maximize the capabilities of your BILAL ISOTRON 40.

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INSTRUCTION MANUAL

FOR THE

ISOTRON 40

MANUFACTURED BY

BILAL COMPANY

137 MANCHESTER DR

FLORISSANT, CO. 80816

PH: 719/687-0650

PART 2

Re-arranged by Giancarlo Moda, I7SWX – Aug. 2010

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Summary of Contents for ISOTRON 40

Page 1: ...INSTRUCTION MANUAL FOR THE ISOTRON 40 MANUFACTURED BY BILAL COMPANY 137 MANCHESTER DR FLORISSANT CO 80816 PH 719 687 0650 PART 2 Re arranged by Giancarlo Moda I7SWX Aug 2010 ...

Page 2: ...l the tuning hardware and take note of where the resonant point is Trimming will be from this point therefore the tuning hardware could be used for lowering the resonant point to where desired 1 Remove the Top Coil Support 2 Tape the coil securely so the windings will unravel 3 Clip the eye on the top lead of the coil 4 Slide the wire back through the two holes in the coil form 5 REMOVE 1 2 TURN A...

Page 3: ...e feedpoint impedance and resonant frequency become higher than desired then it is possible to decrease them by connecting a capacitor of about l00pf or less between the antenna and the tower see pg 14 fig 2 Another words the lowest impedance would be directly grounding the antenna to the mast A point in between can be obtained by the use of a capacitor as described This technique will apply on mo...

Page 4: ...ts where the third prong would insert on some appliances The ground wire should be attached to the bottom of the mast only where the antennas are mounted Please note that the shield of the coax is not considered to be the same ground as the grounded components of the antenna such as mast or bottom plate The diagram on page 14 shows how to insulate your antenna from ground if necessary and how to c...

Page 5: ...do not use a ground for performance Grounding offers a change in impedance value as well as protection against static discharge The ONLY way to ground the Isotrons is by connecting the ground wire to the bottom of the mast the antenna is mounted on NEVER run a ground wire up to the antenna The wire will interact with the feedline and drastically change the tuning Avoid running ground wires paralle...

Page 6: ... the impedance lower than 50 ohms The recommended adjustments may have little affect due to the short feedline At the lowest the antenna will exhibit a 20 ohm impedance giving a SWR of around 3 1 Please keep in mind that if your SWR is over 3 1 the problem is your resonant point not impedance value This can be corrected by following the instructions on RESONANT POINT If you find isolating the ante...

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