DJ-X3 | Alinco

Alinco » DJ-X3 — Price & Specifications

Pocket size handheld scanner, receiving frequency range 0.1-1300 MHz in AM and FM mode. This receiver features an frequency-inversion audio descrambled and also a bug detector function for find hidden transmitters. Ideated in Japan, year of introduction 2001.

Reference market : ham-radio

General :
Frequency coverage 0.1000 ~ 1299.9950 MHz
Modulation mode AM / FM / WFM
Tuning step 5 / 8.333 / 10 / 12.5 / 15 / 20 / 25 / 50 / 100 KHz [1]
Receiver :
Sensitivity AM 7.0 uV (0.5~1.62 MHz, 10dB S/N)
1.7 uV (1.62~1300 MHz, 10dB S/N)
FM 0.7 uV (30~550 MHz, 12dB SINAD)
1.0 uV (550~1300 MHz, 12dB SINAD)
Selectivity AM / FM > 12 KHz (-6dB)
< 30 KHz (-60dB)
WFM > 150 (-6dB)
Frequency stability ± 5ppm
Intermediate frequency 248.45 MHz
38.85 MHz
450 KHz
RF attenuator 20 dB
Features :
Memory 700 regular memories in 10 banks
20 for programmed scan limits
8 priority channels
Display 1 KHz frequency resolution
5-segments signal meter bar
Antenna SMA 50Ω connector
Power supply 3.6~ 6V battery (3 x AA)
4.5 ~ 16 VDC external
Power consumption 150 mA
75 mA squelch on, battery save function off
39 mA squelch on, battery save function on
Audio power 0.22 W with an 8Ω load
Audio output Jack 3.5 mm
Mechanical and environmental data :
Operating temperature from -10°C to +60°C
Dimensions 56 (W) x 102 (H) x 23 (D) mm, without antenna
Weight 145g

[1] Tuning step fixed to 9 KHz for frequencies lower than 1620 KHz (medium wave)

Description :

Lightweight and compact radio scanner, with only 145 grams, the DJ-X3 is aimed at those who practice radio-listening in AM and FM modes only and that need a simple device, with just four main keys, and equipped with the few functions that really need. It has 700 generic memory locations distributed in 10 banks while the scan function uses an adequate number of locations for the selection of the frequency interval. Besides the flexible antenna, a ferrite antenna is incorporated to improve the reception of the Medium Waves. As an auxiliary antenna the cable of an earphone can also be used (optional) reducing the encumbrance and for a discretionary use. A frequency inversion scrambler decoder is integrated, this function makes it possible to make clear the voice communications otherwise incomprehensible. Another interesting feature is the RF-detector mode to speed up the recognition of a nearby transmitter.

An LCD display with good visibility shows the frequency and the complementary data, the same display hides the speaker positioned in order to spread the sound through the lateral guides instead of the front. This particular mechanical construction returns a high quality sound if you take the portable receivers of the same type as reference. To add that using the headphones the audio is stereo, for listening to FM broadcast on 87.5~108 MHz. For prolonged use the power-save or auto-power-off mode can be activated, respectively, in order to control the operation time or switch off the device after 30, 60 or 90 minutes. The receiver also allows the cloning of the contents of the memories from a PC and also between two DJ-X3, the software can be downloaded from the Alinco site while the interface cables are required as optional accessories.

Performance and practical notes :

In general terms, this model does not excel in sensitivity, but stands out for a good price / performance ratio that makes it appreciable if you are looking for a basic device without giving up some non-standard functions. For example, the use of the earphone audio cable as an antenna proves to be very convenient, even within the sensitivity limits mentioned above, while the scrambler decoder opens to communications otherwise not accessible. However, it is worth pointing out that because of the variations in the audio frequency inversion technique, the actual use of this mode is conditioned by the single circumstance.

DJ-X3 price :

We have collected for your convenience the DJ-X3 Alinco sales prices and their trend over time. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price Date Condition
GBP 109,-- 2018-oct New
EUR 100,00 2018-oct Second Hand

Radio comes manual, rechargeable batteries and charger

GBP 59,99 2018-oct Second Hand

With some signs of deterioration due to use

Valuation :

Dynamic range
Spurious response
Signal functions
Control functions
User friendly

Stars: 1=insufficient, 2=just sufficient, 3=mediocre, 4=good, 5=excellent

Review :

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