Broadband Omni disc antenna 300 MHz – 8 GHz, Linear, N-type
The only disc antenna in the range that works from 300 MHz: 433 MHz ISM, PMR, DVB-T and on up to 8 GHz on one omnidirectional antenna. N-type Female, 500 W, 330 × 330 × 350 mm, 1 kg. For spectrum monitoring and lab measurement.
Specifications
| RF | |
|---|---|
| Frequency range | 300–8000MHz |
| Antenna type | Omnidirectional |
| Polarization | Linear |
| Impedance | 50Ω |
| Max input power | 500W |
| Connector | N-type Female |
| Dimensions | 330 × 330 × 350mm |
| Weight | 1kg |
Description
The 300 MHz – 8 GHz disc antenna spans a frequency ratio of more than twenty to one, and does it omnidirectionally, with no aiming. This is the antenna for people who watch the whole spectrum rather than one channel: monitoring, laboratory measurement, equipment testing.
What it sees and the rest of the range does not
The other two disc antennas start at 800 MHz and 1 GHz. Everything below that does not exist for them — and that is the most densely occupied part of the spectrum:
- 433 MHz ISM — telemetry, LoRa, remote controls, sensors
- 430–440 MHz — amateur UHF
- 446 MHz PMR — handheld radios
- 300–400 MHz — service and departmental channels
- 470–790 MHz — DVB-T television channels
If none of those frequencies matter to your work, there is no point paying for them: the model from 800 MHz costs half as much and weighs a third.
Why it is this large
The lower edge of a disc antenna is set by the size of its radiator: to work at 300 MHz, where a wavelength runs to a metre, the disc has to match. Hence 330 × 330 × 350 mm and about a kilogram — against 360 grams for the model from 800 MHz. This is a fixed-installation format: a mast, a roof, a lab bench, not a backpack.
The RF chain
An N-type Female connector and a 500 W rating mean the antenna can sit in a transmit chain, not only on receive. The 50 Ω impedance matches standard equipment with nothing in between.
Which of the three disc antennas is yours
This one is for when you need the whole spectrum, lower frequencies included, and size is not the constraint. If your work starts at 800 MHz, the 800 MHz – 8 GHz disc antenna gives 11 dBi at 5800 MHz for 360 g. If you need maximum compactness, the 1–8 GHz disc antenna weighs about 100 g.
Built to order. Send us quantities and timing and we will agree a schedule and price the batch.
Buying in volume? The price changes
Volume pricing is worked out against your quantity. Tell us how many units you need and we will come back with a calculation within one business day.
- Pricing scales with volume
- Delivery across Ukraine
- Reply within a business day
Frequently asked questions
- Why does it cost twice as much as the model from 800 MHz?
- The size of the radiator. A disc antenna's lower edge follows its geometry: working at 300 MHz, where a wavelength is a metre, needs a markedly larger disc. Hence 330 × 330 × 350 mm and a kilogram, against 210 × 210 × 180 mm and 360 g.
- Does this antenna need aiming?
- No. The pattern is omnidirectional in the horizontal plane — it receives evenly from all sides. Aiming is for directional antennas, log-periodics for instance.
- Is it suitable for DVB-T reception?
- Yes, the 470–790 MHz television channels fall inside its range. The other two disc antennas in the range cannot see them — they start higher.
- Can it be mast-mounted outdoors?
- Yes, it is a fixed-installation format. Allow for the one-kilogram mass when choosing a bracket, and protect the connector with heat-shrink or self-amalgamating tape, as on any outdoor RF joint.
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