Uniden BC246T Manuel d'utilisateur télécharger pdf (Page 2)

July 2005 MONITORING TIMES 71

baud) systems, Motorola Astro 25 (APCO 25

9600 baud) systems, EDACS (wide and narrow),

EDACS SCAT, and LTR trunked radio systems.

Trunk systems in VHF, UHF, the new 700 MHz

public safety band, 800 MHz, and 900 MHz bands

can be programmed. This includes trunk systems

now being installed by the Department of De

fense in the new 380-399.9 MHz LMR subband.

This makes the 396 the first scanner capable of

following trunk systems in all the bands where

trunk systems are operational. The scanner can

also scan both conventional and trunked systems

at the same time.

In addition, the 396 does Motorola control

channel trunking: If the scanner is set to scan

Motorola trunk frequencies, the user sets it so it

tracks the trunk system using only control channel

data. In this mode, as long as all possible control

channels have been programmed into memory,

you do not have to program the system's voice

channel frequencies.

❖ What's New

There are several new features and innova-

tions in the 396. This is the first Uniden scanner

that has the APCO digital card built in (no extra

card to purchase).

Other noteworthy new features include:

• Adaptive digital threshold – Automatically sets

the digital decode threshold for APCO digital

systems. User can also manually adjust or

reset to default digital reception levels.

• Analog and digital audio automatic gain con-

trol (AGC) – Helps automatically balance the

volume level between different radio systems,

both digital and analog.

• Fire tone-out standby – Lets the user set the

scanner to alert you if a two-tone sequential

page is transmitted. You can set up to 10 set-

tings (transmit frequency, tone frequencies,

tone duration and tone gap) then select one

of the programmed positions for standby

monitoring and alerting.

• Broadcast screen – Sets the scanner so it

ignores Close Call

or search hits on FM/TV

broadcast frequencies, including known pager

frequencies.

• Custom screen – Lets you input up to 10

frequency ranges that the scanner will ignore

during Close Call

or search operation.

❖ What's in the box?

In addition to the BCD396T scanner, acces-

sories included in the box include a PC interface

cable, three "AA" 2300mAH rechargable batter

ies, wrist strap, AC adapter/charger, swivel belt

clip, rubber duck antenna, BNC/SMA adapter,

owner's manual, Bearcat frequency guide, and a

National Public Safety Trunk System frequency

guide.

Unfortunately, the two printed frequency

guides included in the box are out-of-date. If

you are looking for current information I recom

mend you visit the Radioreference.com website

or purchase a current Police Call book for your

area.

❖ Overall Rating and Final

Thoughts

Most of the complaints about the Uniden

BC246T I penned in my review last December

have vaporized with the release of the BCD396T.

Overall, I am very impressed that Uniden has

packed so much into such a small package.

Milair enthusiasts are the big winners with

the release of the 396 and they are going to love

this scanner. Imagine going to an airshow not

knowing any of the frequencies being used, and

being able to find most of the active frequencies

using the 396 Close Call feature in the 225-400

MHz band. That is a huge plus for milair monitor

ing.

I do have three minor complaints with the

BCD396T: audio quality, backlight of the display,

and keypad durability.

While the scanner’s audio quality is very

good, it falls just a notch below the audio deliv

ered by the BC246T. The addition of the analog

and digital AGC circuitry is a big plus for audio

levels, however.

The cobalt blue color of the backlight

doesn’t impact keyboard usage nearly as much

as it does the display portion of the unit. Even

with maximum contrast dialed in, the screen can

be difficult to see in certain lighting situations.

While the overall display has improved over the

BC246T, the blue backlighting still makes view

ing difficult.

Finally, I am concerned about keypad dura

bility and the permanence of the keypad button

printing. Some have complained of the imprinting

wearing off the buttons on the BC246T, and this

could still be an issue with the BCD396T. Only

time will tell.

Bottom line, Uniden has raised the scanner

market bar again. No one in the marketplace

currently offers a scanner – whether handheld or

base/mobile – that equals the frequency cover

age plus listening capability to be found in the

BCD396T.

Table One: BCD396T Frequency Coverage

Freq Range

Default

(MHz) Modulation

Step (kHz)

25.0000-27.9950 AM 5.0

28.0000-29.6800 NFM 20.0

29.7000-49.9900 NFM 10.0

50.0000-53.9800 NFM 20.0

54.0000-71.9500 WFM 50.0

72.0000-75.9950 FM 5.0

76.0000-87.9500 WFM 50.0

88.0000-107.9000 WFM 100.0

108.0000-136.9750 AM 25.0

137.0000-143.9875 NFM 12.5

144.0000-147.9950 NFM 5.0

148.0000-150.7875 NFM 12.5

150.8000-161.9950 NFM 5.0

162.0000-173.9875 NFM 12.5

174.0000-215.9500 WFM 50.0

216.0000-224.9800 NFM 20.0

225.0000-399.9500 AM 50.0

400.0000-512.0000 NFM 12.5

764.0000-775.9875 NFM 12.5

794.0000-805.9875 NFM 12.5

806.0000-823.9875 NFM 12.5

849.0125-868.9875 NFM 12.5

894.0125-956.0000 NFM 12.5

1240.000-1300.000 NFM 25.0

Note: The scanner’s frequency coverage is not

continuous and does not include the cellular

telephone, UHF TV bands, or the 956-1240

MHz ranges.

Table Two: Miscellaneous Specifications

Dynamic allocation capacity

Systems: 400 maximum

Groups: 20 per system

Channels: up to 6000 (3000 typical)

Channels (talkgroups) per trunk system: Up to

200

Operating temperature:

Normal –20°C to +60°C

Close Call –10°C to +60°C

Scan rate:

100 channels per second (conventional

mode)

Search rate:

300 steps per second (5 kHz step only)

Scan delay:

0-5 seconds

Audio output:

400mW nominal into 24 ohm internal speak-

30 mW nominal into 32 ohm headphone

6 mW nominal into 64 ohm earphone

Power Requirements:

3 AA Alkaline batteries (4.5V DC),

or 3 AA rechargeable batteries (3.6V DC),

or AC adapter (6 VDC 800mA regulated)

(Model AD-1001)

External speaker jack: 3.5mm

DC power jack (EIAJ TYPE-2 center positive):

5.5mm

Remote jack: 4 pin mini

Note: Features, speciﬁcations, and availability of

optional accessories are all subject to change

without notice by the manufacturer. Informa-

tion presented above was based on the test

unit provided by the manufacturer.

The Uniden BCD396T (SCN 47) is available

from Grove Enterprises (1-800-438-8155 or

http://www.grove-enterprises.com) for $524.95

plus shipping.

MT First Look Rating (0-10 scale)

Audio Quality ...................................8

Audio Levels ....................................9

Backlight/Display .............................7

Battery Life ......................................8

Ease of Use ......................................8

Feature Set ......................................9

Keyboard/Button/Control Layout ......8

Overall Construction ........................8

Overall Reception ............................8

Owners Manual ..............................8

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Uniden BC246T Manuel d'utilisateur Page 2

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