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RadioRanked verdict

Updated Aug 2026

Comet SMA-24 (SMA-Male) vs Nagoya NA-771 (SMA-Male)

Our pick

Nagoya NA-771 (SMA-Male)$20.98

The Nagoya NA-771 is the clear winner despite its lower price. The single most important differentiator is VHF performance: the Comet SMA-24 achieves a realistic quarter-wave match at 146 MHz with minimal loss, while the NA-771 is electrically short and compromised at -1.0 dBi. However, the NA-771's significantly higher overall score reflects that most amateur radio use skews toward UHF, where both antennas deliver identical 2.9 dBi performance. The NA-771 also claims 3 dBi gain, which aligns with its design, whereas the Comet's 3.5 dBi claim is optimistic. At 11 dollars cheaper, the NA-771 offers better value for UHF-dominant operators. Buy the Comet SMA-24 if you prioritize dual-band balance and spend meaningful time on 2-meter FM. Buy the Nagoya NA-771 if you primarily work 70 cm or want a solid general-purpose handheld antenna without overpaying. For most users, the NA-771 is the safer choice.

By use case

Which should you buy?

  • Budget-conscious new ham upgrading from stock

    It offers superior value and performance at a significantly lower price point.

    NA-771
  • Operator needing maximum VHF signal reach

    The longer physical length provides better overall antenna element support for distant communication.

    SMA-24
  • Ham prioritizing portability and light weight

    Its slightly shorter design makes it marginally more compact for daily carry operations.

    NA-771
  • Advanced operator seeking best overall performance metrics

    It boasts a higher RR score and RF performance rating, indicating robust build quality.

    SMA-24
  • Ham needing the most cost-effective whip option available

    At $20.98, it is the clear budget winner compared to its competitor.

    NA-771

Reasons to choose Comet SMA-24 (SMA-Male)

  • No clear advantages in this comparison

Reasons to choose Nagoya NA-771 (SMA-Male)

  • 34% cheaper ($20.98 vs $31.99)

Spec battle

Spec-by-spec breakdown

Comet SMA-24 (SMA-Male)SpecNagoya NA-771 (SMA-Male)
$31.99
Price
$20.98
450 mm
Length
396 mm
0.22 λ, quarter wave
On VHF (146 MHz)
0.19 λ, electrically short
0.65 λ, 5/8 wave
On UHF (435 MHz)
0.57 λ, 5/8 wave
3.5 dBi
Claimed gain
3 dBi
Supported by its length
Is that claim credible?
Supported by its length
SMA-Male
Connector
SMA-Male
whip
Type
whip
Yes
Flexible
Yes
75
Overall Score
86
+15% for winner
Black
color
Black
0
unitCount
1

Made your choice?

Comet SMA-24 (SMA-Male)

$31.99 on Amazon

Nagoya NA-771 (SMA-Male)PICK

$20.98 on Amazon

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