Preparing your datasheet

422x.09-445-Txx

9 dBd HD omni antenna 420 - 470 MHz, low PIM

Description

The 422x Series omni antenna is designed for demanding applications where a durable and high performance colinear is required.
The centre fed dipole design and feed network gives a stable radiation pattern across a wide bandwidth, and allows tilted beam designs to be effectively employed without large pattern distortions.
High quality materials and manufacturing techniques are employed to ensure that the antenna has excellent intermodulation performance & wide bandwidth characteristics for multi-channel trunked radio communication systems.
The antenna has been designed to withstand lightning strike.
Former Skymasts brand product.

Specification

Electrical
Model	422x.09-445-Txx
Frequency	420 – 470 MHz
Max. Input Power	300 W
Omni Deviation	< ± 1 dB
3 dB Beamwidth, H-Plane	Omnidirectional
Polarisation	Vertical
Peak Instantaneous Power (PIP)	25 kW
3 dB Beamwidth, E-Plane	8° ±1°
Impedance	50 Ω
Gain	8.7 dBd (10.9 dBi)
VSWR	< 1.5:1
Passive Intermodulation	-153 dBc (3rd Order, 2 x Tx @ 43 dBm) (PIM value not guaranteed for N connector version)
Lightning Protection	Lightning current handling capability : 200 kA According to EN 62305-1 (Test pulse 10/350 μs)
Antistatic Protection	All metal parts DC-grounded (Connector shows a DC-short)

Environmental
Operating temperature range	-40 °C to +70 °C
Survival Wind Speed	300 km/h
Ingress Protection	IP56

Mechanical
Connection(s)	7/16 DIN(f), N(f) or 4.3-10(f)
Materials	Antenna Base : Aluminium Shroud : GRP tube 53 mm dia.
Mounting Section	Al. tube 63.5 mm dia. x 350 mm long
Historic Brand	Skymasts
Dimensions	5370 (l) x 53 (dia.) mm / 211.42 x 2.09 (dia.) in.
Wind Load	417 N (160 km/h)
Weight	Approx. 13 kg / 28.66 lb.
Mounting Bracket	2141.01.00.00 (up to 120 mm dia.) (Ordered Separately) ETC-250 (50 to 76 mm dia.) (Ordered Separately)

Ordering Codes

Model	Product No.	Frequency	Additional Information
9 dBd HD omni antenna, low PIM	4220.09-445-T0	420 – 470 MHz	7/16 DIN(f) ; 0° Electrical Tilt
9 dBd HD omni antenna, low PIM	4220.09-445-T2	420 – 470 MHz	7/16 DIN(f) ; 2° Electrical Tilt
9 dBd HD omni antenna, low PIM	4220.09-445-T4	420 – 470 MHz	7/16 DIN(f) ; 4° Electrical Tilt
9 dBd HD omni antenna, low PIM	4220.09-445-T6	420 – 470 MHz	7/16 DIN(f) ; 6° Electrical Tilt
9 dBd HD omni antenna, low PIM	4221.09-445-T0	420 – 470 MHz	N(f) ; 0° Electrical Tilt
9 dBd HD omni antenna, low PIM	4221.09-445-T2	420 – 470 MHz	N(f) ; 2° Electrical Tilt
9 dBd HD omni antenna, low PIM	4221.09-445-T4	420 – 470 MHz	N(f) ; 4° Electrical Tilt
9 dBd HD omni antenna, low PIM	4221.09-445-T6	420 – 470 MHz	N(f) ; 6° Electrical Tilt
9 dBd HD omni antenna, low PIM	4223.09-445-T0	420 – 470 MHz	4.3-10(f) ; 0° Electrical Tilt
9 dBd HD omni antenna, low PIM	4223.09-445-T2	420 – 470 MHz	4.3-10(f) ; 2° Electrical Tilt
9 dBd HD omni antenna, low PIM	4223.09-445-T4	420 – 470 MHz	4.3-10(f) ; 4° Electrical Tilt
9 dBd HD omni antenna, low PIM	4223.09-445-T6	420 – 470 MHz	4.3-10(f) ; 6° Electrical Tilt

Additional Information

Installation Note

Please note that the survival wind speed stated in this specification is based on a static load test simulating a single gust of wind, according to EN 1991-1-4. Continuous flexure of the antenna, over long periods of time in extreme conditions, can cause a gradual deterioration in the structural integrity of the materials; this may result in a reduction of specifications or other failure of the antenna structure.

Mounting details

422x Mounting details

Diagrams

RADIATION PATTERNS

E-Plane | 445 MHz

RADIATION PATTERNS

H-Plane | 445 MHz

PROCOM A/S reserves the right to amend specifications without prior notice

PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark

Generated : 2026-06-22 Version 1