15 of 15 people found the following review helpful:
5.0 out of 5 stars
Sony ICF-SW07 -- HF pocket radio summary, October 27, 2005
This review is from: Sony ICF-SW07 AM/FM Shortwave World Band Receiver with 100 Memory Presets (Electronics)
I received my ICF-SW07 from Amazon.com just in time to assist with hurricane Katrina recovery in Louisiana in September 2005. I took it with me, and it performed very well. My ICF-SW07 came with an external amplified antenna along with the manual, earphones and a carry bag.
I often assist with disaster relief with my company, and I needed a small radio to get news & listen to local amateur radio stations. With storm damage, power is always out and we don't get any information except what's on the radio. I also record local news and digitize for playback at headquarters for later analysis.
To listen to amateur radio in the high frequency (HF, or 150-30,000 KHz) spectrum the radio requires single sideband (SSB) capability, a feature most shortwave radios lack. Better radios insert a carrier in the RF signal, re-creating the double sideband format before stripping the audio information. Cheaper radios insert a tone into the audio signal, usually resulting in poorer audio quality (like the earlier DX-394's).
The ICF-SW07's strong points are good reception, small size (obviously), decent audio and very wide tuning range (150-29999 KHz + FM broadcast). It's still on its first set of AA batteries, so it isn't a power hog.
The amplified antenna is very effective, and works very well in hotel rooms. It has a clip for temporary attachment to curtains and a suction cup for direct window attachment. The antenna connects to a controller, and the controller connects to the ICF-SW07 through a short, non-detachable -short- pigtail lead. While it *does* work, it's a little unwieldy for someone sitting in a car trying to balance both the radio and the controller on one leg. I would like to see Sony make some provision that allows the controller to snap onto the bottom of the radio, even if the pigtail lead design stays.
There are a few points I'd like Sony to improve:
-First, the single sideband (SSB) fine tuning point isn't "remembered" in the memory, it recalls the approximate area. This means it requires fine tuning every time you recall an SSB station from memory. I have an 80's era Ten Tec radio that doesn't have this issue, so it isn't rocket science. I suspect this is caused by Sony's technique-they may be converting the SSB to normal audio in the audio output stage rather than at the RF level, distancing the SSB conversion from the memory.
-Second, the Sony ICF-SW07 doesn't have any signal strength meter, so there isn't any way to distinguish between a weak signal and an overloaded front end.
-Third, the record out jack appears to have a higher than normal output signal, because it overloads the front end of my tape recorder. I haven't had time to investigate the cause of this yet. An attenuator or pad will likely be the best solution.
-Fourth, there is no tuning knob or wheel. Tuning is done with a rocker switch control, and fine tuning is done with a smaller rocker switch. It -does- work, but I'd like to see a rotary tuning control even if it's another thumbwheel.
-Fifth, the display is crude by Sony standards. It's a simple LCD alpha-numeric display, the top half of which is a world time zone map. I would like to see the world map replaced with a selectable meter function, like a band scope/signal strength /carrier center meter.
-Sixth, the scan stop points aren't programmable. The ICF-SW07 will scan the entire band (factory preset), period. Also, in SSB mode it will scan the entire HF spectrum (150-29999 KHz) nonstop! This is the only HF receiver with scanning capability that lacks this obvious control. Again, I have many HF radios that have programmable scan stops.
I've given this radio 5 stars, although I'd grade it more like 4 1/2. Sony should have included programmable scan stops and integrated the SSB setting with the memory, both items well within their grasp.
Summary: I'm very satisfied with my ICF-SW07, it does the basic function I wanted (small, broadband received with SSB). It makes a nice, portable HF listening post. Despite the points (above), I wasn't able to find anything better at any cost. The cost prevented me from buying one sooner, but I finally got one. Given how slow Sony upgrades, I doubt anything better is coming anytime soon. So, for now it's the top-of-the-line pocket HF radio.
-------Three Years Later-------
February 13, 2009:
Batteries-the antenna amplifier batteries are really old, I think I might have changed them maybe once. It uses very little power, it could probably do just fine with AAA batteries. The radio batteries have been changed several times, but battery life is very acceptable.
It's still going strong, but I discovered a weak point in the radio case design. The telescoping rod antenna anchors inside the case, and is captured by a single screw. About a year ago, this screw loosened, causing the antenna to "wobble" a bit. Tightening the screw solved this. A few days ago, the antenna was wobbling again, but this time I found the screw boss area torn off. In other words, the screw had torn off the entire area in the plastic case where it once bore, leaving a hole the same size as the screw head. I was able to recover all the pieces and glue them back, approximating the original screw hole. However, I know it will break off again. I looked into replacing the lower case half, Sony wants _$68_ for a piece of gray plastic. No way, Sony. When I have more time, I plan to cut out the hole oversize and put a small metal plate in to reinforce the antenna base. Stay tuned.
TRICKS AND MODS
Also, I discovered a neat trick. I bought a cheap auto FM converter cable, intended for MP3 players. One end goes in the cigar lighter, the other end into the headphone jack of the MP3 player. The car's FM radio then plays your favorite MP3 songs. The Sony ICF-SW07 has this same headphone jack, so I can use my car's audio system to listen to shortwave. This makes reception *much* easier, since the audio quality is much better, louder and better distributed. I use this while waiting for one of my kids after school or at a lesson somewhere. If you want to try this, make sure the engine's off. Automobile engines make a *lot* of radio frequency interference up close, so don't be surprised if you can't hear much with the engine running.
The active loop antenna screen annoyed me just a little too much. It acts like a sail, catching the lightest zephyr and carrying the loop antenna off the pole, car antenna or what-have-you onto the ground. Plus, it really stands out, not a good thing if you have an expensive radio and you wish to keep it. I removed the loop antenna case halves, unsoldered one side of the loop antenna. I pulled the Sony "Sail" off entirely. Good riddance. The next problem was wire management. The actual antenna is a length of wire captured inside the Sony Sail, and a flat spring steel fish spring (like the kind inexpensive imported pop-up hut toys use) acts as a former. I grabbed a section of used military parachute cord, cut it to the same length as the antenna hoop and pulled the core strands out. Next, seared the parachute cord ends and pulled the antenna wire plus fish spring through the 'chute cord cover. Soldered the antenna connection back and reassembled the case. Perfect fit, and a lot less obtrusive. It doesn't sway in the breeze, nor serve as a gaudy advertisement for Sony. Sorry, Sony...you can afford to pay for your advertising like everyone else.
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4 of 4 people found the following review helpful:
5.0 out of 5 stars
this radio has served me well, November 2, 2007
This review is from: Sony ICF-SW07 AM/FM Shortwave World Band Receiver with 100 Memory Presets (Electronics)
I have had this radio for about 7-8 years(x-mas present,thx honey!) its been on backpacking trips, motorcycle trips and listened to almost every night when not globe trotting.I have had ZERO problem with this radio or antenna system.
it picks up everything you wanna hear, pulls out faint stations,petitely sips battery power and fits in your pocket.for what its worth i'm a licensed ham radio operator.I have owned many shortwave portables
most I would NOT buy agian. this one and my Sangean ats818 I would buy agian in a heartbeat.
only cons;it needs a constant "screen light on" function and a power switch on the outside(not under clamshell)lighted buttons would be a nice improvement also.
this is my goto Armageddon radio, buy one if you can find one!!
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