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MT Express Sample Low Resolution Issue ... - Monitoring Times

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Table 1: Shortwave Broadcast Bands<br />

TenTec RX-340 HF DSP Receiver is the top of the line for SWLers with unlimited budgets. Here’s<br />

a surprise, it’s made in the U.S.A.! (Courtesy: Ten-Tec)<br />

web site e-ham.net. Specific reviews from<br />

individuals are found at http://www.eham.<br />

net/reviews/products/8. Keep in mind that<br />

these are personal opinions from individuals<br />

which may not represent general opinion.<br />

Still, they may be worth reading.<br />

One thing you’ll notice is that the<br />

cheapest radios have old-fashioned analog<br />

tuning. This keeps down production costs<br />

but gives these radios a number of drawbacks.<br />

It’s hard to tell exactly where you<br />

are on the bands with this type tuner, the<br />

numbers are often hard to read without a<br />

magnifying glass, and there’s no way to<br />

have pre-set memory banks for instant access<br />

tuning. The price of a SW radio goes up<br />

as options are added. Here are some “must<br />

haves” that you should look for in a serious<br />

shortwave radio:<br />

• External antenna connection. Allows<br />

attachment of an external antenna or<br />

other accessory such as a pre-selector<br />

or antenna tuner.<br />

• Digital frequency readout with keypad<br />

entry and a reasonable amount of<br />

memory pre-sets. This display should<br />

also include some type of signal strength<br />

meter.<br />

• Sideband reception capability. Allows<br />

tuning amateur radio transmissions<br />

in upper or lower sideband as well as<br />

digital modes which also use sideband<br />

transmissions.<br />

• Wide/Narrow switch provides better<br />

audio for international broadcasters<br />

and helps sideband transmission sound<br />

better.<br />

• Built-in 24 hour clock. Can be set to<br />

UTC so you’ll know when to tune into<br />

programs you see in the guide.<br />

• External speaker connection allows use<br />

of an external speaker to improve audio<br />

quality or to be used with an external<br />

tape recorder.<br />

Shopping for a Radio<br />

Once you’ve narrowed the field of<br />

receivers you’d like to buy and have read<br />

the reviews, it’s time to do a little shopping.<br />

Radio Shack used to be a good place to<br />

check out shortwave radios. They carried<br />

a wide range of models and had stores in<br />

nearly every town. Now, they are reduced<br />

to offering only three shortwave products,<br />

all made by Grundig and ranging from the<br />

M100 for $30 to the Digital Compact for<br />

$80. That leaves the mail order houses as<br />

your best bet for price comparisons. Here’s<br />

a round-up of these vendors, the brands<br />

they carry and other shortwave accessories<br />

of note. They are arranged in alphabetical<br />

order:<br />

Amateur Electronic Supply: 800-558-0411<br />

http://www.aesham.com offers AOR,<br />

Drake, Sangean, Sony, & Yaesu brands.<br />

Has accessories and cable.<br />

C. Crane Co.: 800-522-8863 http://www.<br />

ccrane.com Offers CCRadio Plus, Icom<br />

and Sangean brands. Has portable antenna<br />

& longplay recorders.<br />

Grove Enterprises: 800-438-8155 http://<br />

grove-ent.com Offers AOR, Drake,<br />

Grundig, Icom, JRC (Japan Radio Corp.),<br />

Sangean, Yaesu and WiNRADiO. Sells<br />

outdoor and indoor antennas, cables<br />

and preselectors, books, and <strong>Monitoring</strong><br />

<strong>Times</strong> subscriptions.<br />

Universal Radio 800-431-3939 http://<br />

www.universal-radio.com Offers<br />

Drake, Grundig, Icom, JRC, Sangean,<br />

and Ten-Tec brands. Also sells many<br />

SWL accessories including antennas,<br />

preselectors and books.<br />

The Computer-hosted<br />

Receiver<br />

There’s another type of SW receiver<br />

on the market, a “virtual” receiver which<br />

uses your computer to display a radio control<br />

panel that you would tune as any other<br />

receiver. The audio comes through your<br />

computer as well. The receiver is a box or a<br />

circuit board which interfaces between your<br />

antenna and your computer. Advantages of<br />

this type of receiver is that it has the features<br />

of radios many times the price. The<br />

disadvantage, of course, is that it depends<br />

on your computer for its existence. If your<br />

computer goes down, your radio goes with<br />

it. One such computer-based receiver is the<br />

Ten-Tec RX-320D which is widely available<br />

and sells for $328.95.<br />

Another such receiver is the WinRA-<br />

DiO 1500 series, available through the<br />

Grove catalog, which offers a wide tuning<br />

range (150 kHz to 1.5 GHz with cell phone<br />

frequencies blocked) and also features<br />

performance and extras you’d expect from<br />

a more expensive “real” radio. Or, the new<br />

Courtesy <strong>Monitoring</strong> <strong>Times</strong><br />

Freq kHz Meter Band<br />

2300-2495 120 meters (Note 1)<br />

3200-3400 90 meters (Note 1)<br />

3900-3950 75 meters (Regional band,<br />

used for broadcasting in<br />

Asia only)<br />

3950-4000 75 meters (Regional band,<br />

used for broadcasting in<br />

Asia and Europe)<br />

4750-4995 60 meters (Note 1)<br />

5005-5060 60 meters (Note 1)<br />

5730-5900 49 meter NIB (Note 2)<br />

5900-5950 49 meter WARC-92 band<br />

(Note 3)<br />

5950-6200 49 meters<br />

6200-6295 49 meter NIB (Note 2)<br />

6890-6990 41 meter NIB (Note 2)<br />

7100-7300 41 meters (Regional band,<br />

not allocated for broadcasting<br />

in the western<br />

hemisphere)(Note 4)<br />

7300-7350 41 meter WARC-92 band<br />

(Note 3)<br />

7350-7600 41 meter NIB (Note 2)<br />

9250-9400 31 meter NIB (Note 2)<br />

9400-9500 31 meter WARC-92 band<br />

(Note 3)<br />

9500-9900 31 meters<br />

11500-11600 25 meter NIB (Note 2)<br />

11600-11650 25 meter WARC-92 band<br />

(Note 3)<br />

11650-12050 25 meters<br />

12050-12100 25 meter WARC-92 band<br />

(Note 3)<br />

12100-12600 25 meter NIB (Note 2)<br />

13570-13600 22 meter WARC-92 band<br />

(Note 3)<br />

13600-13800 22 meters<br />

13800-13870 22 meter WARC-92 band<br />

(Note 3)<br />

15030-15100 19 meter NIB (Note 2)<br />

15100-15600 19 meters<br />

15600-15800 19 meter WARC-92 band<br />

(Note 3)<br />

17480-17550 17 meter WARC-92 band<br />

(Note 3)<br />

17550-17900 17 meters<br />

18900-19020 15 meter WARC-92 band<br />

(Note 3)<br />

21450-21850 13 meters<br />

25670-26100 11 meters<br />

Notes<br />

Note 1 Tropical bands, 120/90/60 meters<br />

are for broadcast use only in designated<br />

tropical areas of the world.<br />

Note 2 Broadcasters can use this frequency<br />

range on a (NIB) non-interference basis<br />

only.<br />

Note 3 WARC-92 bands are allocated officially<br />

for use by HF broadcasting stations<br />

in 2007. They are only authorized on a<br />

non-interference basis until that date.<br />

Note 4 WRC-03 update. After March 29, 2009,<br />

the spectrum from 7100-7200 kHz will no<br />

longer be available for broadcast purposes<br />

and will be turned over to amateur radio<br />

operations worldwide

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