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Diamond Antenna D3000N Super Discone vs Sirio SD2000N Discone Antenna

Buy the Diamond D3000N if you want the widest coverage and a scanner-style antenna that also transmits on the ham bands. It receives from 25 to 3000 MHz and transmits from 50 to 1200 MHz, so it covers 6m through 23cm. The Sirio SD2000N is a simpler, lighter discone rated 100 to 2000 MHz with an N connector, made in Italy. Owners of both report solid receive on VHF and UHF; the Diamond's edge is range and transmit capability, the Sirio's is a smaller, less fussy build.

  • Choose the Diamond D3000N if you want one antenna that receives down to 25 MHz, transmits on 6m through 23cm, and can be trimmed by removing the top coil.
  • Choose the Sirio SD2000N if your listening stays between 100 and 2000 MHz and you want a compact, straightforward discone with an N connector.

Prices

  • Diamond Antenna D3000N Super Discone: $135.95 at R&L Electronics (checked today)
  • Sirio SD2000N Discone Antenna: $109.00 at eBay (checked today)
  • Difference: the Sirio SD2000N Discone Antenna is $26.95 cheaper than the Diamond Antenna D3000N Super Discone today
Diamond Antenna
Diamond Antenna D3000N Super Discone Antenna

Diamond Antenna D3000N Super Discone

Diamond Antenna D3000N Super Discone Antenna

$135.95at R&L ElectronicsChecked 11 h ago
See all prices and details
Visit R&L Electronics
Pros
  • Receives 25-3000 MHz, the broadest range of the two
  • Transmits on 6m through 23cm ham bands
  • Top coil can be removed to make it shorter and lighter
  • Omnidirectional with about 2 dBi nominal gain
  • Popular as a test antenna for multiple transmitters on one coax
Cons
  • 67 inches tall, so it needs clearance
  • No coax included
  • Only 20 W at 50 MHz
  • Needs an N-to-SO-239 adapter for many radios
Sirio
Sirio SD2000N Discone Wide Band Antenna

Sirio SD2000N Discone Antenna

Sirio SD2000N Discone Wide Band Antenna

$109.00at eBayChecked 11 h ago
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Covers 100-2000 MHz, enough for most scanner listening
  • Compact and light for its class
  • N connector standard
  • Made in Italy with Sirio's established discone design
Cons
  • No coverage below 100 MHz
  • No 6m transmit
  • Less range on the top end than the Diamond
  • Fewer published specs to compare

What separates them

Diamond Antenna D3000N Super DisconeSirio SD2000N Discone Antenna
Frequency coverage25-3000 MHz receive, 50-1200 MHz transmit100-2000 MHz
Transmit capabilityYes, 6m through 23cm, 20 W at 50 MHzReceive-oriented wideband discone
Amateur bands covered2m, 1-1/4m, 70cm, 33cm, 23cm2m and 70cm within its range
Size and weight67 in tall, about 1 kgShorter, lighter discone
MountingBalcony railing or mast, apartment-friendlyMast or railing mount
ConnectorN connector, coax not includedN connector
TunabilityTop loading coil can be removed to shorten itFixed design
Build originJapan-designed, widely used as a shop/test antennaMade in Italy

Price history

  • Diamond Antenna D3000N Super Discone: lowest $128.52 on Nov 10 at eBay.
  • Sirio SD2000N Discone Antenna: lowest $109.00 on Nov 10 at eBay.

Prices at every store

Diamond Antenna D3000N Super Discone

  • eBayNew

    In stockSold by samuraisoul142142

    $128.52+ $64.00 shippingChecked 11 h ago
    Visit eBay
  • R&L ElectronicsNew

    Availability unknown

    $135.95Checked 11 h ago
    Visit R&L Electronics
  • hamradioshop.itNew

    Availability unknownShips from Italy · duties may apply · made for another market

    $141.00Checked 11 h ago
    Visit hamradioshop.it
  • akibashippingNew

    Availability unknownShips from abroad · duties may apply

    $151.26Checked 11 h ago
    Visit akibashipping

Store links may earn us a commission.

All 9 stores and price history →

Sirio SD2000N Discone Antenna

  • eBayNew

    In stockSold by djhed2003

    $109.00+ $12.00 shippingChecked 11 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $115.00+ $11.08 shippingChecked 11 h ago
    Visit Amazon

Store links may earn us a commission.

All 2 stores and price history →

Specs compared

SpecDiamond Antenna D3000N Super DisconeSirio SD2000N Discone Antenna
Signal Range10 Meters—
Installation LocationBalcony railing at an apartment or condominium—
Included AccessoriesNo Coaxial Cable—
Antenna TypeSuper Discone Antenna—
Antenna DirectivityOmnidirectional—
Antenna Gain2 dBi (nominal)—
Antenna Frequency Band6m (tunable for transmit)—
Antenna Element TypeDiscone—
Antenna HighlightsUltra-wideband design—
Suitable LocationCondominium, Apartment—
Typical UsersUnisex, Adults—
Dimensions67 in (height)—
Show all 19 specsShow fewer specs
SpecDiamond Antenna D3000N Super DisconeSirio SD2000N Discone Antenna
Weight1 kg—
Power SourcePassive—
Impedance50 Ohm—
Wattage20 W (50MHz)—
Frequency Band(S)—100 - 2000 Mhz
Compatible Product—N Connector
Country Of Origin—Italy

What reviewers say

Diamond Antenna D3000N Super Discone

Owners treat the D3000N as a versatile wideband antenna that covers many bands from one mount. They praise its broad receive range and balcony-friendly size, and note that it gives up gain and transmit power handling compared with dedicated single-band antennas.

What people mention
  • CoveragePraisedOwners like receiving across a very wide range and transmitting on several ham bands from one antenna.
  • GainCriticisedReviewers say the nominal 2 dBi gain is modest next to dedicated single-band verticals.
  • MountingPraisedIts light weight and size suit balcony railing installs in apartments and condos.
  • Power handlingCriticisedTransmit wattage is limited, especially on 6m, so high-power operation is not its strength.

Sirio SD2000N Discone Antenna

Owners of discone antennas like this one generally report wide, reliable receive coverage from VHF through UHF and simple setup. Complaints center on size, wind load and the need for decent coax and mounting.

What people mention
  • Band coveragePraisedOwners say it receives VHF and UHF scanner traffic across many bands without swapping antennas.
  • BuildPraisedThe stainless elements and N connector are described as sturdy and weather-resistant.
  • SizeCriticisedIts wide spread makes it awkward to mount and noticeable in wind.
  • GainMixedListeners find receive adequate, but it is weaker than a dedicated single-band antenna on distant signals.

Questions and answers

Which is better for scanner listening?
Both handle VHF and UHF well. The Diamond D3000N adds 25-100 MHz and 2000-3000 MHz, so it catches low-band and 2.4 GHz signals the Sirio SD2000N misses.
Can the Diamond D3000N transmit?
Yes. It transmits from 50 to 1200 MHz, covering 6m, 2m, 1-1/4m, 70cm, 33cm and 23cm, at up to 20 W on 50 MHz. The Sirio SD2000N is a wideband receive antenna.
Which is easier to mount on a balcony?
The Sirio is shorter and lighter, so it is easier to fit in tight spaces. The Diamond is 67 inches tall but is designed for balcony railing mounting and can be shortened by removing its top coil.
Do I need a separate coax cable?
Yes for the Diamond, which ships without coax. Plan for 50-ohm coax and an N connector, or an adapter if your radio uses SO-239.
Is the Diamond worth stepping up to?
If you want low-band receive, 2.4 GHz coverage or ham transmit, yes. If you only listen on VHF and UHF, the Sirio covers that with a smaller footprint.

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