Better Music Builder DX-211 Spezifikationen PDF herunterladen (Seite 9)

From March 2000 QST © ARRL

Nearly all of the control settings you’ll typi-

cally need to program and use this radio can

be easily located using just the keypad la-

bels. You won’t find yourself constantly

scrolling through hidden menus searching

for the particular setting you need to vary.

The receive audio—for both FM ama-

teur reception and WFM FM broadcast

band reception—is excellent. The level and

quality of the audio is remarkable. I often

found myself using the radio for listening

to FM music and news broadcasts at my

desk at work. Overall, the audio is more

than loud and crisp enough for hand-held

and mobile operations, and should be plenty

adequate for even the noisiest public ser-

vice applications.

The transmit audio was typically de-

scribed as “communications quality.” The

low frequencies in your voice are somewhat

attenuated. There is a two-level mike gain

control. The “HI” setting seemed to work

best for my voice level—but I know of a few

particularly enthusiastic operators on our lo-

cal repeater that could definitely benefit

from the “LOW” microphone gain setting.

If you look over the lab data presented

in Table 2 and compare these figures to the

numbers that we measured on the other one

band at a time dual-band H-Ts we’ve looked

at recently, you’ll find that the performance

of the DJ-V5T stacks up very well to the

competition.

Table 2

Alinco DJ-V5TH, serial number T000670

Manufacturer’s Specifications Measured in ARRL Lab

Frequency Coverage: Receive, 76-108 MHz (WFM), Receive and transmit, as specified.

144-148 MHz, 420-450 MHz; transmit, 144-148 MHz, 420-450 MHz.

Power requirements: 4.0-15.0 V dc; receive, 0.22 A; Receive, 0.21 A (maximum volume, no signal);

transmit, 1.6 A (maximum, high power). transmit, 1.4 A, tested at 13.8 V.

Receiver Receiver Dynamic Testing

Sensitivity: 12 dB SINAD, VHF, 0.16 µV; UHF, 0.18 µV; FM, 12 dB SINAD, VHF, 0.14 µV; UHF, 0.16 µV;

WFM, 1.0 µV. WFM, 100 MHz, 0.74 µV.

Two-tone, third-order IMD dynamic range: Not specified. 20 kHz offset from 146 MHz, 52 dB,

10 MHz offset from 146 MHz, 81 dB;

20 kHz offset from 440 MHz, 51 dB,

10 MHz offset from 440 MHz, 69 dB.

Two-tone, second-order IMD dynamic range: Not specified. VHF, 69 dB.

Adjacent-channel rejection: Not specified. 20 kHz offset from 146 MHz, 55 dB;

20 kHz offset from 440 MHz, 53 dB.

Spurious response: 60 dB. IF rejection, VHF, 96 dB; UHF, 143 dB;

image rejection, VHF, 97 dB; UHF, 60 dB.

Squelch sensitivity: Not specified. At threshold, VHF, 0.14 µV; UHF, 0.16 µV.

Audio output: 500 mW at 10% THD into 8 Ω. 633 mW at 10% THD into 8Ω.

Transmitter Transmitter Dynamic Testing

Power Output: (H / L1 / L2), 6 / 1 / 0.5 W. 146 MHz, 4.0 / 0.6 / 0.3 W; 440 MHz,

3.4 / 0.6 / 0.3 W with EBP-46N battery pack;

146 MHz, 5.5 / 1.1 / 0.4 W; 440 MHz,

5.6 / 1.1 / 0.5 W with 13.8 V dc.

Spurious signal and harmonic suppression: 60 dB. VHF, 65 dB; UHF, 60 dB. Meets FCC requirements.

Transmit-receive turnaround time (PTT release Squelch on, S9 signal, VHF, 172 ms; UHF, 168 ms.

to 50% of full audio output): Not specified.

Receive-transmit turnaround time (“tx delay”): Not specified. VHF, 450 ms; UHF, 540 ms.

Size (hwd): 3.8x2.3x1.6 inches; weight, 11.8 ounces.

It scores near the top of this class for

amateur band receive sensitivity. The VHF

two-tone third-order IMD dynamic range

at 10 MHz offset also came in at the high

end of the range. Couple this with decent

IF and image rejection numbers and a very

respectable adjacent channel rejection fig-

ure, and the DJ-V5T proves that it has what

it takes to live up to Alinco’s reputation for

radios that will perform well even in tough

RF environments.

The DJ-V5, with the snap on belt clip

attached, is nearly 2 inches deep. As with a

number of these clamshell-style radios, this

can make right-handed operation challeng-

ing. Even with my fairly large hands, it is a

bit of a stretch to hold the unit comfortably

in my right palm and still be able to reach

the

PTT button with the tip of my index or

middle finger. Left-handed use seems much

easier—my thumb naturally lands in the

proper position to operate the

PPT, MONI/

SQL and LAMP buttons, and even the

POWER, FUNC/LOCK and BAND/SET but-

tons on the left side of the front panel are

in easy left thumb range.

The volume control could use a bit

more drag in its action (or perhaps a slight

reduction in its diameter)—I often found

myself inadvertently changing the volume

setting while turning the rotary encoder.

With the level of audio this radio is capable

of, it can sure cause a scene when the

squelch breaks with the volume cranked

up all the way!

Imminent Improvements

Alinco recently began advertising an im-

proved version of this transceiver—and this

will be great news for the scanner buffs

among us. The new version will provide a

vastly expanded receive range right out of

the box (no surgery required)—an impres-

sive 76 to 999 MHz range (yes folks, the

cellular phone frequencies will be ex-

cluded)—and will also include the AM re-

ceive mode for those who enjoy aircraft

band listening.

Alinco is offering this new version in a

choice of two colors—either the traditional

black plastic enclosure or a new “see

through” shell. The plastic used in this one

has a slight blue tint to it.

It looks like Apple Computers and the

pager manufacturers may have started a bit

of a design trend here… Is the ham radio

market ready for such a stylin’ transceiver?

I guess we’ll just have to wait and see.

Manufacturer: USA Alinco Branch, 438

Amapola Ave, Suite 130, Torrance, CA

90501; 310-618-8616; fax 310-618-8758;

http://www.alinco.com.

Manufacturer’s suggested retail price:

$35

. Typical current street price: $28

Bid solicitations for Product Review

equipment appear on page 46.

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