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Deal.ai › Comet
Comet
Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna

Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna

Best price now

$94.99at AmazonChecked 1 h ago

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Price facts

  • Lowest price today: $94.99 at Amazon (checked Nov 10, 2026).

Our take on the Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna

The Comet CA-2x4SR is a 40-inch dual-band mobile antenna covering 2m and 70cm, with wide receive coverage that reaches into CB and scanner territory. It rates 150 watts, folds over for clearance, and mounts on a standard UHF (PL-259) base. Gain is modest on 2m (3.8 dBi) and stronger on 70cm (6.2 dBi), and the wide 140-160 MHz and 435-465 MHz tuning makes it more forgiving than narrow-band ham whips. It suits hams who want one antenna for the car that also listens across public safety and CB frequencies, though it is taller and heavier than a simple quarter-wave whip.

Best forMobile 2m/70cm ham operationScanner and CB listening on the roadDrivers who want one antenna for several bandsOperators who need fold-over clearance
Pros
  • Wide tuning covers 140-160 MHz and 435-465 MHz
  • Folds over for garages and low clearances
  • 150-watt power rating handles most mobile radios
  • Standard PL-259 base fits common mounts
  • Stronger 6.2 dBi gain on 70cm
Cons
  • 40-inch height needs a solid mount and clearance
  • Only 3.8 dBi on 2m, modest next to longer dual-band whips
  • Wide coverage trades some peak gain for bandwidth
  • Needs a ground plane or mount to tune well

Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $94.99Free shippingChecked 1 h ago
    Visit Amazon

Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna price history

Lowest price we've seen: $94.99 on Nov 10 at Amazon. Tracked across 1 store since Nov 10.

What reviewers say

Owners of the CA-2x4SR generally report it works well across 2m, 70cm and scanner bands, with low SWR on the ham frequencies. Complaints center on its height and the need for a good mount and ground plane.

What people mention
  • SWRPraisedOwners report low SWR on the 2m and 70cm ham frequencies.
  • Receive coveragePraisedUsers like that it hears scanner and CB frequencies beyond the ham bands.
  • HeightCriticisedAt 40 inches it draws attention and can hit low branches.
  • MountingMixedResults vary with the mount and ground plane used.
  • GainMixed70cm gain is strong, but 2m gain is modest next to longer whips.

Specifications

Antenna Type
Dual-bandSource
Antenna Color
BlackSource
Mobile Antenna Height
40.000 in.Source
Mobile Antenna Base
UHFSource

Questions and answers

Does it work on CB and scanner frequencies?
It receives across 140-160 MHz and 435-465 MHz, which covers CB and many scanner channels. Transmit is intended for the 2m and 70cm ham bands.
What mount does it need?
It uses a standard UHF male (PL-259) base, so it fits common SO-239 mounts and NMO adapters. A solid ground plane improves tuning.
Can I fold it down?
Yes, it has a fold-over hinge so you can lay it down for garages or low clearance.
How much power can it handle?
It is rated for 150 watts, which covers most mobile ham radios.
Is it good for a first mobile antenna?
It is a reasonable choice if you want one antenna for 2m, 70cm and listening. Its height and mount needs make it less beginner-friendly than a short whip.
Where is the Comet Antenna CA-2x4SR 2m/70cm/CB/Scanner Antenna cheapest?
At Amazon, for $94.99, as of our latest check.

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Power Rating
150 wattsSource
Fold-Over
YesSource
2m Frequency Coverage
140-160 MHzSource
70cm Frequency Coverage
435-465 MHzSource
2m Gain
3.8 dBiSource
70cm Gain
6.2 dBiSource
Connector
UHF Male Base (PL-259)Source
SWR
1.5:1 or less SWR: 144-148/440-450MHzSource