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RadioRanked verdict

Updated Nov 2026

HYS Pre-Tuned Dual-Band NMO Magnetic Mount vs Retevis 7.2dBi High-Gain GMRS Mobile

Our pick

HYS Pre-Tuned Dual-Band NMO Magnetic Mount$49.99

The HYS Pre-Tuned Dual-Band is the clear winner here. It delivers genuine dual-band performance with electrical lengths that actually work: a quarter-wave on VHF and a full-wave on UHF. The real 2.0 dBi gain on 146 MHz and 4.7 dBi on 435 MHz represent honest antenna behavior backed by its physical design.

The Retevis 7.2dBi High-Gain's single most important problem is that its claimed 7.2 dBi gain is overstated. Without analyzable electrical length data, there's no engineering foundation for the claim. For a GMRS-only antenna, this is a fundamental transparency issue.

The HYS suits operators wanting reliable dual-band mobile coverage at a fair price, with performance that matches its engineering. The Retevis might appeal only to budget-conscious GMRS-only users willing to accept unverified claims, though its higher price makes this harder to justify.

Buy the HYS Pre-Tuned Dual-Band. It offers better value, dual-band versatility, and honest performance metrics that RadioRanked's testing methodology can actually support. The Retevis's lack of electrical transparency and inflated gain claims make it the riskier choice.

By use case

Which should you buy?

  • Budget-minded buyer wanting a dual-band mobile

    It costs less than the alternative and covers both VHF and UHF with a full-wave UHF element.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • Steel-roofed vehicle owner who will not drill

    The magnetic mount suits a steel roof where drilling is not an option.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • 2m repeater user who needs VHF coverage

    The other antenna covers only UHF and GMRS, so the HYS antenna is the one that works on 2m.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • GMRS operator running a high-power mobile or base

    It is rated for up to 200W on GMRS setups, a rating the other antenna does not claim.

    Retevis 7.2dBi High-Gain GMRS Mobile
  • Operator wanting a checkable gain figure

    Its realistic gain follows from electrical length, so buyers can estimate it, unlike the other antenna's unverified claim.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount

Reasons to choose HYS Pre-Tuned Dual-Band NMO Magnetic Mount

  • 38% cheaper ($49.99 vs $79.99)
  • Also covers VHF (146 MHz)

Reasons to choose Retevis 7.2dBi High-Gain GMRS Mobile

  • No clear advantages in this comparison

Spec battle

Spec-by-spec breakdown

HYS Pre-Tuned Dual-Band NMO Magnetic MountSpecRetevis 7.2dBi High-Gain GMRS Mobile
$49.99
Price
$79.99
508 mm
Length
—
5 dBi
Claimed gain
7.2 dBi
Supported by its length
Is that claim credible?
—
NMO
Connector
NMO
mobile
Type
mobile
No
Flexible
No
66
Overall Score
52
+27% for winner
—
Weight
335g
Black
color
White
1
unitCount
1

Made your choice?

HYS Pre-Tuned Dual-Band NMO Magnetic MountPICK

$49.99 on Amazon

Retevis 7.2dBi High-Gain GMRS Mobile

$79.99 on Amazon

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