KD4450T datasheet, PDF - EEWORLD Datasheet

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KD4450T: DescriptionHelix Antenna, 395MHz Min, 512MHz Max, 2.15dB Gain; CategoryWireless rf/communication Radio frequency and microwave; File Size94KB，4 Pages; ManufacturerRadiall; Websitehttps://www.radiall.com/

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KD4450T Overview

Helix Antenna, 395MHz Min, 512MHz Max, 2.15dB Gain

KD4450T Parametric

Parameter Name	Attribute value
Maker	Radiall
Reach Compliance Code	unknown
application	MULTIPOINT COMMUNICATION SYSTEM
Characteristic impedance	50 Ω
Gain	2.15 dB
Omnidirectional	YES
Maximum operating frequency	512 MHz
Minimum operating frequency	395 MHz
polarization	LINEAR VERTICAL
RF/Microwave Device Types	HELIX ANTENNA
Maximum transmission power	25 W
Maximum voltage standing wave ratio	1.5

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PORTABLE ANTENNAS KULDUCKIE

HALF WAVE VHF

HALF WAVE UHF

• Design pioneered at Larsen

• 1/2 over 1/4 wave delivers a noticeable

improvement in range and sound clarity

• Brass wound cable radiator for conductivity,

flexibility and strength

• Attractive & durable PVC Finish

• Low loss polyolefin protects the helix from the

higher loss PVC jacket material

• Highly efficient .50 steel & copper-plated

radiating element means improved conductivity

and performance

• Soldered electrical connection is covered with a

copper jacket then flooded with solder to give

double protection at the point of maximum

stress

• Silver plated contact pin or durable brass

connection provides excellent electrical contact

and long life

Available for VHF

Approx. length: 9 1/2 “

• Collapsible chrome radiating element:

internally shorted collapsing joints provide

good performance and attractive, durable

finish

• Sturdy polycarbonate transformer housing -

coil cannot flex and change frequency

• Superior air wound impedance transformer

provides higher Q and deeper resonance.

• Silver plated contact pin or durable brass

connection provides excellent electrical contact

and long life

Available for VHF

Approx. length:

6" collapsed

44 1/2" fully extended

• Brass wound cable radiator for conductivity,

flexibility and strength

• Attractive & durable PVC Finish

• Fully soldered, not just crimped for best

electrical performance and long life

• Sturdy polycarbonate transformer housing -

coil cannot flex and change frequency

• Superior air wound impedance transformer

provides higher Q and deeper resonance.

• Silver plated contact pin or durable brass

connection provides excellent electrical contact

and long life

Available for UHF

Approx. length:

16"

1 800 ANTENN A

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