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RadioRanked verdict

Updated Sep 2026

Comet CH-32 (BNC) vs Diamond SRJ77CA (BNC)

Our pick

Diamond SRJ77CA (BNC)$25.99

The Diamond SRJ77CA is the clear winner for VHF/UHF handheld use. The single most important differentiator is electrical length: at 146 MHz, the Diamond reaches 0.20 wavelengths with a realistic -0.9 dBi, while the Comet delivers only 0.02 wavelengths at -9.0 dBi. On UHF, the Diamond's 0.59 wavelengths approaches 5/8 wave territory with 3.0 dBi gain, versus the Comet's compromised 0.06 wavelengths at -5.3 dBi. Both are electrically short on VHF, but the Diamond's longer physical design mitigates this far more effectively.

The CH-32 suits users who prioritize minimal size and pocket portability despite accepting substantial VHF loss and modest UHF performance. The SRJ77CA fits operators who want functional dual-band performance on a handheld without sacrificing practical gain on either band. Owners report 4.6 out of 5 stars for the Diamond across 604 reviews versus 4.4 stars for the Comet across 34 reviews. The Diamond also costs thirteen dollars less. RadioRanked's composite score gap reflects the performance advantage in electrical length, the higher owner rating, and the better price.

By use case

Which should you buy?

  • Minimalist user needing the smallest possible stub

    The Comet CH-32 is designed specifically for minimum physical size.

    CH-32
  • Operator upgrading from a stock rubber ducky antenna

    Its better electrical performance and length offer a noticeable range improvement.

    SRJ77CA
  • User prioritizing maximum portability and minimal bulk

    The Comet CH-32 is significantly shorter, making it ideal for tight spaces.

    CH-32
  • Budget-conscious buyer looking for the best value whip

    Diamond's lower price point makes it the clear winner in a budget comparison.

    SRJ77CA

Reasons to choose Comet CH-32 (BNC)

  • 14.2 in shorter to carry (44 mm vs 405 mm)

Reasons to choose Diamond SRJ77CA (BNC)

  • 33% cheaper ($25.99 vs $38.99)
  • Stronger on VHF (-0.9 dBi vs -9.0 dBi at 146 MHz)
  • Stronger on UHF (3.0 dBi vs -5.3 dBi at 435 MHz)
  • Flexible, so it survives being bent

Spec battle

Spec-by-spec breakdown

Comet CH-32 (BNC)SpecDiamond SRJ77CA (BNC)
$38.99
Price
$25.99
44 mm
Length
405 mm
0.02 λ, electrically short
On VHF (146 MHz)
0.20 λ, electrically short
0.06 λ, electrically short
On UHF (435 MHz)
0.59 λ, 5/8 wave
BNC
Connector
BNC
whip
Type
whip
No
Flexible
Yes
35
Overall Score
83
2.4× difference
—
Weight
40g
Compact, Small
size
Small
Black
color
Black
1
unitCount
1

Made your choice?

Comet CH-32 (BNC)

$38.99 on Amazon

Diamond SRJ77CA (BNC)PICK

$25.99 on Amazon

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