Sangean ATS-505 Manuel d'utilisateur télécharger pdf

70 MONITORING TIMES March 2007

his month we will continue our First Look

at the battle of the low end shortwave

portables. In the February 2007 edition

of this column, we compared the Kaito KA1102

(Grove RCV02 $79.95) with the Eton S350DL

(Grove RCV04 $99.95). After the smoke cleared,

the Kaito KA1102 came out on top.

So, in this edition of MT First Look we

will put the winner of that competition in a head

to head with the next challenger – the Sangean

ATS-505P (Grove RCV07 $109.95). But, before

we travel down this new path, let’s do a review

of the champ from our last competition.

KAITO KA1102

Inside the Box

The first thing I noticed when I took the

radio out of the box was its size. Dimensions

are 5.62 inches (143mm) x 3.46 inches (88 mm)

x 1.12 inches (28.5 mm) and it weighs 9.8 oz.

(280 grams), excluding the three batteries. This

radio can be thrown into a briefcase or purse for

travel.

Accessories included in the box include a

carrying pouch, operating manual (plus a simple

operating guide), AC adapter, three Ni-MH re-

chargeable batteries, stereo earphones, external

antenna (SW/FM only), and a wrist strap with

stand support. The manual was okay. I have seen

better: There was no explanation to the beginner

as to what shortwave is, etc. The typeset is a bit

small due to the small size of the manual itself,

but it is logically laid out.

On-the-Air Testing

During our testing we used the venerable

Sony 2010 as our benchmark receiver. The first

noticeable improvement was in FM broadcast

band reception. It beat the 2010 hands down when

using only the whip antennas. But we did notice

some images on the lower frequencies from the

high end of the band. Shortwave sensitivity was

much better on the 2010.

The receiver has good audio, not great, but

given the size of the speaker (2.6 inches) it was

interesting to hear some reasonable audio from

such a small package. There was a noticeable

audio improvement when I moved to headphones.

But this is not a line-out jack as the instruction

manual indicates. The audio levels change using

the volume control. I did notice that at times, de-

pending on signal strength, the narrow AM filter

IRST LOOK

By Larry Van Horn, N5FPW

MT Assistant/Technical Editor

Kaito KA1102 vs Sangean ATS-505P

Comparing Two Portables Around $100

had a detrimental effect on the received audio.

Receiver selectivity was surprising good

for this price range. I was particularly pleased

with the FM selectivity, which is usually an af-

terthought in a low-end receiver. But what really

surprised me about the 1102 was the inclusion of

SSB reception capability, but there is a negative

here also (see below).

This is a dual conversion receiver. While

that is good, we noticed more images when we

connected it to an external antenna when com-

pared to the same setup for the Sony 2010. AM

reception was good (see negatives below), but

FM reception was better on this radio than on

the Sony 2010. Shortwave reception was about

equal to the other radio, but the Sony was slightly

better on the higher shortwave bands.

And for those that like tuning around, there

was no chugging when tuning the 1102 like you

have with the older Sony.

The 1102 Negatives

As I have said many times, no radio is per-

fect. And we are talking about a $79.95 portable,

so the Kaito has a few skeletons in its closet.

Tuning SSB signals is a chore. Since there

seemed to be some confusion by at least one

reader of my last review, let me try to explain

this situation about tuning in SSB signals on the

Kaito.

Yes, there is an SSB button on the side of the

receiver. When you press that button you will be

able to decode the SSB transmission for receiv-

ing. If you release that button, the receiver will

revert back to the AM mode and you will now

longer be able to receive the tuned SSB signal.

In order to change from the AM mode and

put the Kaito into the SSB mode without having

to hold the SSB button, you have to go through

a convoluted 5-step procedure to keep it in that

mode. And there is no USB/LSB; instead, the

radio uses SSB fine tuning control to hone in SSB

signals.

The learning curve for this radio is much

steeper than the 2010 or even the Sangean radio

reviewed in this article. What makes this more

difficult is the much smaller screen used by

this radio. If you are near-sighted, you will not

have a pleasurable experience using the Kaito

KA1102.

AM reception compared to the Sony/San-

gean was not as good and was probably the result

of a smaller ferrite loop coil inside the radio com-

pared to the other two radios. The external antenna

on the Kaito only works on the shortwave/FM

bands, so AM broadcast band reception is not as

good as the other two radios.

I did note a bit of synthesizer noise while

tuning around; the Sangean reviewed below has

none. This is probably a direct result of the tuning

methods used by the two portables.

There are few other quirks we noted, but this

didn’t effect overall reception.

Table 1 is a listing of manufacturer specs and

key features.

Table 1: Kaito KA1102 Manufacturer Specs/

Key Features

Frequency Coverage:

Medium Wave 520-1710 kHz with 1/9/10

kHz steps – selectable

Shortwave 3.00-29.99 MHz with 1/5 kHz

steps – selectable

FM Band 70.0-108.0 MHz with 10/50/100

kHz steps – selectable

Conversion: MW & SW dual conversion

Bandwidths: Wide-Narrow AM/SW, Mono/stereo

selectivity for FM

Freq/Meter Conversion: SW meter band indica-

tor/conversion

Attenuator: Local-DX switch

Tuning Options: Digital frequency readout with

manual tuning/speed change tuning/auto

scan/memory scan/direct tuning and SSB

ﬁne tuning control

Memory Locations: 190 random presets pages

1-6; band preset pages 7-9; ATS preset page

0, has Auto tune/Auto memory

Indicators: LED light signal strength (AM/SW four

levels/FM three levels), includes a stereo re-

ception indicator, battery level indicator

Clock function: 12/24 hour selectable, Sleeping

time direct entry 1-99 minutes

Audio Control: Push button

Tone select: News/music switch, FM stereo bass

(earphones only)

Backlighting: Display/keyboard light

Antennas: Telescopic antenna for FM and short-

wave and built in ferrite bar antenna for AM,

Overall rating: 2-1/4 stars

1 2

Résumé du contenu

Page 1 - IRST LOOK

70 MONITORING TIMES March 2007This month we will continue our First Look at the battle of the low end shortwave portables. In th

Page 2 - Bottom Line – Head-to-Head

March 2007 MONITORING TIMES 71plus external jack.External Jacks: Earphone jack (stereo on FM), antenna jack, both are 3.5 m

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