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MU 4-ZG

Colinear 4 dB Mobile Antenna for the 450 MHz Band
Description
  • 4 dB mobile antenna with colinear, stainless steel whip with 8 mm thread joint.
  • Models with ZG-mount or MZG-magnetic mount.
  • Choice between ZG-mount with FME-connection (supplied without cable) or ZGP4-mount with 4 m factory fitted cable (terminated with FME-connector).
  • MZG-models are provided with FME-connection directly on the mount (supplied without cable).
  • Choice between general purpose tunable models and permanently tuned models for cellular systems.

  • Whips from the ZG/ZGP4 mounts and the MZG-mount are NOT compatible.

Specification
Electrical
Model MU 4-ZG/…
Frequency Models within : 380 … 470 MHz
Antenna Type Collinear stainless steel mobile whip antenna
Max. Input Power 100 W
Polarisation Vertical
Impedance 50 Ω
Bandwidth > 15 MHz @ VSWR < 1.5
> 30 MHz @ VSWR < 2.5
Gain (EIA RS-329-1) 4 dB
Mechanical
Materials Whip : Black-chromed stainless steel and brass
Mount : Black-chromed brass
Weather- and shockproof plastics
Stainless steel
Installation Torque 7.5 ±1 Nm
Colour Black
Historic Brand Amphenol Procom
Antenna Mount Type
Hole MountMagnetic Mount
Height Approx. 59 mm / 2.32 in.
Weight ZG-version : Approx. 180 g / 0.4 lb.
ZGP4-version : Approx. 320 g / 0.7 lb.
MZG-version : Approx. 860 g / 1.9 lb.
Mounting 21mm dia. hole
Ordering Codes
Model Product No. FrequencyAdditional Information

MU 4-MZG/f

 130000917 406…430 MHz MZG-mount with FME

MU 4-MZG/h

 130000918 440…470 MHz MZG-mount with FME

MU 4-MZG/l

 130000919 420…450 MHz MZG-mount with FME

MU 4-MZG/s

 130000920 380…410 MHz MZG-mount with FME

MU 4-ZGP4/f

 130000959 406…430 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/h

 130000961 440…470 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/l

 130000964 420…450 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/ CEL1

 130000969 450 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/ CEL2

 130000970 440 – 455 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/ CEL3

 130000971 425 – 440 MHz ZGP4-mount with 4m cable and FME

MU 4-ZGP4/s

 130000958 380…410 MHz ZGP4-mount with 4m cable and FME

MU 4-ZG/f

 130000957 406…430 MHz ZG-mount with FME

MU 4-ZG/h

 130000960 440…470 MHz ZG-mount with FME

MU 4-ZG/l

 130000963 420…450 MHz ZG-mount with FME

MU 4-ZG/ CEL1

 130000966 450 – 470 MHz ZG-mount with FME

MU 4-ZG/ CEL2

 130000967 440 – 455 MHz ZG-mount with FME

MU 4-ZG/ CEL3

 130000968 425 – 440 MHz ZG-mount with FME

MU 4-ZG/s

 130000972 380…410 MHz ZG-mount with FME

MU 4-MZG/CEL2

 130001329 440 – 455 MHz MZG-mount with FME
Additional Information
The whip is compatible with all below mounts

ZG ZGP4 MZG Mount GB

Installation

The antenna whip comprises a ¼ ? section, a phase shifting coil, and a ½ ? section. The ZG-mount is designed for mounting from the outside in a 21 mm dia. hole on horizontal surfaces as e.g. roof top or trunk lid.

The mount is provided with an M8 x 1 thread mount system. This construction meets the demand for a low-profile mobile mount with a slim appearance and with protection against theft of the antenna whip.

When cleaning the car in car-washing machines, the whip is easily removed using a spanner, size 12 mm. The whip is refitted again by screwing it onto the thread stud and tightening it with the spanner.

The MZG-mount antennas are provided with a large-diameter, thoroughly magnetized permanent ring magnet with an extraordinarily high attaching effect. A silicone layer applied to the whole contact surface protects the car roof and ensures maximum friction.

Please note that whips from the ZG/ZGP4 mounts and the whips from the MZG-mount are not compatible.

1. Installation Dimension

2. Installation Steps

ZG Mount inst step samlet GB

Do not use sealer on rubber gasket or other places.

3. Tuning

ZG and ZGP4 models

MZG models

Please Note

For safety reasons:
When using the MU 4-MZG/…, car speed must not exceed 140 km/h.

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-26 Version 1