Winradio ax-17c indoor active hf antenna
Click the image to enlarge

WiNRADiO Communications

Winradio ax-17c indoor active hf antenna

(£0.00 exc. VAT)
(£158.29 exc. VAT)
Out of Stock

0 Reward points
Product code: WR-AX-17C
Download a pdf document for Winradio ax-17c indoor active hf antenna

Want to be notified when this product is back in stock? Complete the form below and we'll send you an email when it is.

Finance Available

Radioworld now offer finance through our partners Close Brothers.

Add the item to your basket in the normal way and at checkout choose to make payment via Finance. You’ll then be taken through to our partners Pay4Later to make your finance application.

Item CostFinance OptionDepositMonthly PaymentsTotal Cost
12 Months 14.9% APR
18 Months 14.9% APR
24 Months 14.9% APR
36 Months 14.9% APR
48 Months 14.9% APR
12 Months 19.5% APR
18 Months 19.5% APR
24 Months 19.5% APR
36 Months 19.5% APR
48 Months 19.5% APR

Click here to recommend this product to a friend

Recommend a friend

Winradio ax-17c indoor active hf antenna

Winradio ax-17c indoor active hf antenna

The AX-17C is a miniature indoor active HF antenna suited for applications where it is not possible to use conventional large outdoor antennas, and where loop antennas are either not available or not practical due to their large size.

The AX-17C antenna is by no means intended to replace "proper" HF antennas, certainly not for long-distance (DX) applications. However, it will provide very acceptable reception where space is at premium, and where the signal is relatively strong.

The AX-17C antenna is also suitable in conditions where much interference exists in the electric component of the electromagnetic field, for example in high-rise office or apartment buildings, and reception of the magnetic component only improves the signal-to-noise ratio. Furthermore, the antenna's directionality makes it possible to reduce interference by rotating the antenna away from the interference source. Its small size makes it easily portable and useful for covert or mobile applications.

The antenna is constructed using a special type of ferrite material combined with a unique active circuit which maximizes sensitivity and minimizes overload from nearby strong signals.

The antenna is powered using a linear 12 V AC/DC adapter which is supplied as part of the package.

The antenna covers the frequency range of 0.1 to 30 MHz. It is optimized for mainly HF use, with reduced performance under 2 MHz, where stronger local signals are expected.

While designed to be entirely general-purpose, the AX-17C antenna is especially suitable for the WiNRADiO G3 Series of receivers. However, it will work well with most third-party receivers with 50 Ohm antenna input impedance.

The antenna comes fully assembled. Installation involves only two simple steps: Connecting the antenna to the receiver via the supplied coaxial cable; and powering it up using the supplied power adapter. Upon activating the front-panel push-button switch, the front-panel LED indicates that the antenna is powered up.

The optimum location of the antenna should be found by trial and error. Typically it would be close to a window, away from potentially interfering devices such as a personal computer. In most cases, the antenna will exhibit directivity (this may vary depending on how the received signal propagates) and optimum reception can be found by rotating the antenna.

An altogether different and interesting alternative to this antenna's typical usage is as an inductive coupler to an outdoor long-wire antenna. This is accomplished by winding a few turns of insulated lead-in wire around the AX-17C antenna's body, with the other end grounded:

WiNRADiO AX-17C Antenna as Inductive Coupler

The purpose of such an arrangement is to eliminate common-mode interference caused by ground loops resulting from a galvanic connection of the outdoor antenna lead directly to the receiver. The optimum number of turns should be established experimentally; typically this will be between one to five turns.

Technical Specifications
TypeActive ferrite antenna
UsageReceiving only
Frequency range0.1 to 30 MHz
Output impedance50 Ohm
Supply voltage12 V DC (min 10 V, max 14 V)
Supply current50 mA typ. @ 12 V
ConnectorSMA female
DimensionsLength: 164 mm (6.5")
Width: 96 mm (3.8")
Height: 21 mm (0.8")
Weight233 g (8.40 oz)

Power adapter (included)
ModelWiNRADiO SF-41 Linear-mode regulated AC-input DC-output power supply
Input voltageUS version: 110-130 V AC, 60 Hz
EU version: 210-250 V AC, 50 Hz
AU version: 210-250 V AC, 50 Hz
JA version: 90-110 V AC, 60 Hz
Output voltage12 V DC ±5%
Output current200 mA max
Thermal fuse130°C
Input socketUS version: integral cord
EU version: IEC-320 socket
AU version: IEC-320 socket
JA version: integral cord
Output socketStandard jack OD = 5.5 mm, ID = 2.1 mm, positive tip
Noise< 40µV (10 Hz <= f <= 100 kHz)
Size70 x 46 x 41 mm (2.8 x 1.8 x 1.6 in)
Weight320 g (11.3 oz), including cord

Cable (included)
Length1.2 m (4 ft)
ConnectorsSMA male (both ends)

Specifications are subject to change without notice due to continuous product development and improvement.

All orders placed on this website will not be subject to VAT for customers residing in the European Union or the rest of the world. However, it is important to mention that VAT will still be applicable based on the rates set by your country upon delivery.

Our Price Match Promise means that if you find any of our Equipment at a lower advertised price elsewhere, we will match the price for you, subject to the below.

  • The product is identical to ours in brand, colour, size and model number.
  • The price must be the advertised price clearly on the competitor's online site.
  • The item must be in stock and available for immediate purchase (rather than available to order), with the authorised stockist able to complete delivery within 2-3 days.

Please fill out the form below. The details will be used to help us with your price promise request.

Your Details

Competitor Product

Weblink showing other retailers product at a reduced price, in stock and ready for dispatch

Product Details