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RadioRanked verdict

Updated Aug 2026

Comet SS-460SBNMO Dual-Band Mobile vs Retevis Heavy-Duty Fiberglass GMRS Mobile

Our pick

Retevis Heavy-Duty Fiberglass GMRS Mobile$69.59

The Retevis Heavy-Duty Fiberglass is the clear winner for GMRS work, but the choice depends entirely on your band needs. The most important differentiator is electrical length: the Comet operates as a compromise quarter-wave on VHF and a decent 5/8-wave on UHF, while the Retevis commits fully to GMRS with a multi-wavelength design that delivers genuine 6.3 dBi gain. The Comet's claimed 3.8 dBi is realistic and honest, whereas the Retevis slightly optimistic claim of 6.5 dBi still reflects solid actual performance.

Buy the Comet SS-460 if you need a dual-band VHF/UHF mobile that performs reasonably on both frequencies without compromise. Buy the Retevis if you operate primarily or exclusively on GMRS and want the best gain available in this form factor. The Comet's lower cost and dual-band flexibility make it the general-purpose choice, but the Retevis edges ahead on score and delivers noticeably better performance where it matters: a single band done right. For GMRS-only users, the 6 dB advantage justifies the extra $25.

By use case

Which should you buy?

  • Everyday dual-band mobile user needing portability

    Its compact size and dual VHF/UHF bands make it ideal for daily use.

    SS-460SBNMO
  • Fixed or overlanding GMRS setup requiring maximum reach

    The long fiberglass whip provides superior signal strength for semi-permanent installations.

    Retevis Heavy-Duty Fiberglass GMRS Mobile
  • Budget-conscious operator needing dual VHF/UHF capability

    It is significantly cheaper than the alternative while still offering both bands.

    SS-460SBNMO
  • Operator focusing solely on GMRS in a semi-permanent rig

    This antenna provides excellent performance and dedicated length for GMRS frequencies.

    Retevis Heavy-Duty Fiberglass GMRS Mobile

Reasons to choose Comet SS-460SBNMO Dual-Band Mobile

  • 21% cheaper ($54.99 vs $69.59)
  • Also covers VHF (146 MHz)
  • Lower profile by 29.7 in (470 mm vs 1224 mm)

Reasons to choose Retevis Heavy-Duty Fiberglass GMRS Mobile

  • Also covers GMRS (465 MHz)

Spec battle

Spec-by-spec breakdown

Comet SS-460SBNMO Dual-Band MobileSpecRetevis Heavy-Duty Fiberglass GMRS Mobile
$54.99
Price
$69.59
470 mm
Length
1224 mm
3.8 dBi
Claimed gain
6.5 dBi
Supported by its length
Is that claim credible?
Supported by its length
NMO
Connector
NMO
mobile
Type
mobile
No
Flexible
No
64
Overall Score
71
+11% for winner
Medium
size
48.2 inch
Black
color
Black
1
unitCount
1

Made your choice?

Comet SS-460SBNMO Dual-Band Mobile

$54.99 on Amazon

Retevis Heavy-Duty Fiberglass GMRS MobilePICK

$69.59 on Amazon

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