Description
Motorola PMAD4121B VHF/GPS Combination Stubby Antenna | 160–174 MHz
Compact VHF/GPS stubby antenna for Motorola XPR, DP, R, DGP, DEP, and XIR series portables.
The Motorola PMAD4121B is a compact VHF/GPS combination stubby antenna designed for Motorola portable two-way radios operating in the 160–174 MHz frequency range. At 90 mm (9 cm) in length, it provides a low-profile alternative to standard whip antennas while supporting both VHF voice communication and GPS 1575 MHz frequencies in a single unit — ideal for belt-worn use across a wide range of Motorola platforms.
Note: The DP2000 and XPR3000 series radios do not have GPS capability but are still compatible with this antenna for VHF voice communication.
Key Features & Benefits
VHF/GPS Combination: Supports both VHF (160–174 MHz) and GPS 1575 MHz frequencies in a single compact antenna.
Compact 90 mm Stubby Design: Low-profile form factor ideal for belt-worn use, reducing snag risk during active shifts.
Broad Motorola Compatibility: Works across XPR, DP, R, DGP, DEP, and XIR series portable radios.
Durable Construction: Built to withstand the rigors of daily use in demanding professional environments.
Specifications
| Attribute |
Details |
| Brand |
Motorola |
| Model / SKU |
PMAD4121B (replaces PMAD4121) |
| Product Type |
VHF/GPS Combination Stubby Antenna |
| Frequency Range |
160–174 MHz (VHF) |
| GPS Frequency |
1575 MHz |
| Length |
90 mm (9 cm) |
| Country of Origin |
Malaysia |
Compatibility
| Model |
Series |
| R2 |
Motorola R Series |
| R5 |
Motorola R Series |
| R7 |
Motorola R Series |
| XPR3300e |
Motorola XPR Series |
| XPR3500e |
Motorola XPR Series |
| XPR7350e |
Motorola XPR Series |
| XPR7550e |
Motorola XPR Series |
| DP2400e |
Motorola DP Series |
| DP2600e |
Motorola DP Series |
| DP4400e |
Motorola DP Series |
| DP4800e |
Motorola DP Series |
| DEP550e |
Motorola DEP Series |
| DEP570e |
Motorola DEP Series |
| DGP5050 |
Motorola DGP Series |
| DGP5550 |
Motorola DGP Series |
| DGP8050 |
Motorola DGP Series |
| DGP8550 |
Motorola DGP Series |
| XiR P6600 |
Motorola XIR Series |
| XiR P8600 |
Motorola XIR Series |
What's Included
| Description |
SKU/Model |
Status |
| VHF/GPS Combination Stubby Antenna |
PMAD4121B |
Included |
| Compatible Portable Radio (e.g. R2, R5, R7, XPR7550e) |
— |
Sold Separately |
Recommended Accessories
Compatible Radios
Motorola MOTOTRBO R2 Portable Two-Way Radio — Compatible R series radio for use with the PMAD4121B antenna.
Motorola MOTOTRBO R5 Portable Two-Way Radio — Compatible R series radio for use with the PMAD4121B antenna.
Motorola MOTOTRBO R7 Portable Two-Way Radio — Compatible R series radio for use with the PMAD4121B antenna.
Frequently Asked Questions
Does the PMAD4121B support GPS?
Yes. The PMAD4121B supports both the 160–174 MHz VHF voice range and GPS 1575 MHz frequencies in a single antenna. Note that the DP2000 and XPR3000 series radios do not have GPS capability, but are still compatible with this antenna for VHF voice communication.
What is the difference between the PMAD4121 and the PMAD4121B?
The PMAD4121B is the current factory revision of the PMAD4121. Both part numbers refer to the same VHF/GPS combination stubby antenna with identical specifications and compatibility.
Why choose a stubby antenna over a standard whip?
At 90 mm, the PMAD4121B is significantly shorter than a standard whip antenna, making it ideal for belt-worn use. It reduces the risk of the antenna snagging on clothing or equipment during active shifts. Trade-off: stubby antennas typically have a slightly shorter effective range than full-length whip antennas.
Warranty
1-year manufacturer's warranty.
