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Deal.ai › Diamond Antenna
Diamond Antenna
Diamond Antenna CR8900 4-Band Mobile Antenna

Diamond Antenna CR8900 4-Band Mobile Antenna

Best price now

$69.99at AmazonChecked 1 h ago

45% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $69.99 at Amazon (checked Nov 10, 2026).
  • Checked at 6 stores.

Our take on the Diamond Antenna CR8900 4-Band Mobile Antenna

The Diamond CR8900 is a quad-band mobile antenna for 10m, 6m, 2m and 70cm, built for hams who want one whip on the car instead of four. Its 2x5/8-wave design on 70cm gives 5.5dBi there, and the fold-over base lets you lay it down for garages and drive-throughs. It is a long, heavy antenna at 1.26m and 490g, so it needs a solid trunk-lid or body mount, not a magnet. Reviewers rate it for solid build and real multi-band convenience, but note it is tall, needs tuning care and is not a beginner's plug-and-play whip.

Best forHam operators running 10m, 6m, 2m and 70cm in one vehicleDrivers who want a fold-over whip for low garagesTrunk-lid or body-mount installs on cars and trucks
Pros
  • Four bands in one antenna: 10m, 6m, 2m and 70cm
  • 5.5dBi gain on 70cm from a 2x5/8-wave design
  • Fold-over base for parking and low clearances
  • Handles 60W and 50-ohm radios
  • Omni-directional pattern for mobile use
Cons
  • 1.26m long and 490g, so it needs a sturdy mount
  • Not recommended with magnet mounts
  • No cable or mount in the box
  • Long whips can slap or sway at speed
  • Multi-band whips usually need tuning on some bands

Diamond Antenna CR8900 4-Band Mobile Antenna prices at every store

  • Buy Two Way RadiosNew

    In stock

    $109.99+ $9.99 shippingChecked 1 h ago
    Visit Buy Two Way Radios
  • hamradioshop.itNew

    In stockShips from Italy · duties may apply · made for another market

    $118.00+ $32.30 shippingChecked 1 h ago
    Visit hamradioshop.it
  • GPS CentralNew

    In stockShips from Canada · duties may apply

    $127.40+ $24.78 shippingChecked 1 h ago
    Visit GPS Central
  • eBayNew

    In stockSold by theantennafarm

    $159.95Free shippingChecked 1 h ago
    Visit eBay
  • KamsatNew

    In stockShips from the UK · duties may apply

    $138.00+ $82.00 shippingChecked 1 h ago
    Visit Kamsat
  • AmazonNew

    Availability unknown

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

    $69.99Free shippingChecked 1 h ago
    Visit Amazon

Store links may earn us a commission.

Diamond Antenna CR8900 4-Band Mobile Antenna price history

Lowest price we've seen: $69.99 on Nov 10 at Amazon. Tracked across 6 stores since Nov 10.

What reviewers say

Owners of the CR8900 generally praise its build and the convenience of covering four bands with one whip. Complaints center on its length and weight, the need for a proper mount, and tuning effort on some bands.

What people mention
  • BuildPraisedOwners describe it as sturdy and well made for mobile use.
  • Multi-bandPraisedReviewers like covering 10m, 6m, 2m and 70cm with a single antenna.
  • LengthCriticisedIts 1.26m height draws complaints about clearance and sway.
  • MountingCriticisedUsers say it needs a solid body mount and does not suit magnet mounts.
  • TuningMixedSome find SWR tuning straightforward, others struggle on the lower bands.

Specifications

Included Accessories
No cable/mount included
Suitable Location
Outdoor
Antenna Type
Multi-band
Antenna Directivity
Omni-directional
Antenna Gain
5.5dBi (430MHz)
Antenna Frequency Band
70cm
Antenna Element Type
2x5/8wave (430MHz)

Questions and answers

Does the CR8900 cover 10m, 6m, 2m and 70cm?
Yes. It is a quad-band mobile antenna for those four ham bands, with 5.5dBi gain on 70cm.
Can I use it with a magnet mount?
No. Diamond does not recommend magnet mounts for this antenna. Use a trunk-lid or body mount with a good ground.
Is a cable or mount included?
No. The antenna ships without a cable or mount, so you supply the UHF-female mount and coax.
How much power can it handle?
It is rated for 60W and 50 ohms, which covers most mobile transceivers.
What does the fold-over base do?
It lets you fold the whip down for garages, car washes and low clearances without removing the antenna.
How long is it?
It is 1.26m long and weighs 490g, so plan for clearance and a strong mount.
Where is the Diamond Antenna CR8900 4-Band Mobile Antenna cheapest?
At Amazon, for $69.99, 45% under what the other stores charge, as of our latest check.
Where can I buy the Diamond Antenna CR8900 4-Band Mobile Antenna?
6 stores we checked sell it, including Buy Two Way Radios, hamradioshop.it, GPS Central, Kamsat, eBay.

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Antenna Highlights
Fold-over
Installation Location
side of vehicle (i.e. trunk lid)
Mount Type
UHF female
Dimensions
1.26m (Length)
Weight
490g
Design Highlights
Fold-over
Impedance
50ohms
Wattage
60 W