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RadioRanked verdict

Updated Aug 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-conscious beginner upgrading from a rubber duck

    Its significantly lower price point offers excellent value for a first upgrade.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • Operator needing reliable dual-band coverage (VHF/UHF)

    The HYS supports both VHF and UHF bands, giving it superior versatility.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • Serious GMRS operator needing maximum range and power

    The higher gain and focus on the GMRS band are ideal for maximizing reach.

    Retevis 7.2dBi High-Gain GMRS Mobile
  • Mobile radio user prioritizing ease of installation and removal

    Its magnetic mount makes switching between vehicles quick and hassle-free.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount
  • Operator concerned about claimed gain accuracy

    The HYS provides more verifiable performance metrics, making it safer for investment.

    HYS Pre-Tuned Dual-Band NMO Magnetic Mount

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

  • 26% cheaper ($49.99 vs $67.19)
  • 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
$67.19
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
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

$67.19 on Amazon

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