Showing posts with label sw. Show all posts
Showing posts with label sw. Show all posts

4/18/2012

Etón Raptor NSP200WXGR Solar USB Charger and Weatherband Radio (Green) Review

Etón Raptor NSP200WXGR Solar USB Charger and Weatherband Radio (Green)
Average Reviews:

(More customer reviews)
I bought this even though I couldn't find any reviews because I figured it was worth a shot due to all the features it had. I really wanted to like it but I was completely disappointed. Right away I noticed the antenna was loose. I figured ok, not that big a deal and went into the quick setup book. Everything seemed easy enough to set. It was only until I got to the full instruction book that I started to get frustrated. Contrary to how this thing looks, it is not rugged at all. Right away they tell you that it's not splash proof or can even be used in high humidity. Also if you think you're getting a practical solar charger, radio, compass, etc you're wrong. They tell you takes 18 hours to get a full charge on the battery! And if you think you're getting a decent radio you'd be wrong as well. There were no instructions on how to start the radio! Not in the quick setup book or in the main instruction manual. The simply tell you turn on the radio! I played with it for an hour and could not get the radio to work! The instructions on how to power on and off the device were the same as the radio. The simply tell you to press the power button to turn the device on and off. I tried holding the power button down for 3 seconds, then 10 seconds and nothing! Great work Eton! You should stick to making Red Cross emergency radios. If you want a solar charger get a solio classic. If you want a radio get any old one with a hand crank. If you want an altimeter, barometer, thermometer, compass go to campmor.com or REI and you'll be able to find a clip on style device that does all that. I'm never buying another eton product unless I get the chance to check it out in person.

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Solar Charger with All-Terrain Guidance Functions

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3/22/2012

New Tecsun Radio Pl-380 DSP Fm Am Stereo World Band Receiver Review

New Tecsun Radio Pl-380 DSP Fm Am Stereo World Band Receiver
Average Reviews:

(More customer reviews)
Tecsun definitely has a winner with with the new DSP (Digital signal processing) third generation (see below) Tecsun PL-380 radio! I am extremely impressed right out of the box with how well it performs on its own attached whip telescopic antenna and its large internal ferrite rod antenna even for quite weak signals with both very good sensitivity as well as selectivity on ALL bands. The current price of about $45 on Amazon (including FREE shipping) is a fantastic value and should be a great bargain for many avid radio listeners.
PROS:
1) A double conversion, PLL (Phase-locked loop), fully digital portable radio that that comes with a USB cable for providing power or charging capability from a PC and a readable and quite useful English manual.
2) Excellent weak signal reception on ALL bands (LW/AM/FM/SW) using three separate band selector switches with LW and AM band selection toggled on the same switch. It really performs very well!
3) It has fm stereo available through earphones (supplied) that can be turned off for the reliable detection of weaker fm signals.
4) There is a separate switch that provides backlight control and that nicely illuminates the display as well as an alarm for wake-up/snooze,etc with either a buzzer or radio setting.
5) A dedicated set of wide/narrow bandwidth controls using a switch that toggles through a series of bandwidths from 1 to 6 KHz (with 1, 2, 3, 4 and 6 KHz bandwidth settings).
6) Numerous tuning methods are available including a fine as well as a coarse tuning setting button for ALL bands and including an ATS (Automatic tuning and storage) storage system for 550 presets, direct keyboard frequency entry without hitting an "ENTER" key, up/down scanning keys, a fine and smooth, manual tuning knob, etc.
7) It also has a separate ETM tuning system (tuned with a dial and not a knob as on the PL-310 radio) for storing a set of weak signals while traveling to another location. The nice idea about this system is that the standard ATS presets are NOT modified at all and do not have to be reset when returning to your home location (but limited by a total maximum of 550 presets).
8) Very high quality and very readable display with many many icons for indicating battery life, wide/narrow bandwidth filter setting choice, fm stereo setting, etc. Clock time and station frequency are displayed simultaneously. The display also has a new and fully digital readout of both the signal strength and of the signal to noise ratio which are continuously updated at quite frequent intervals.
9) Good battery life is available using 3 rechargeable AA batteries (supplied) and the unit can be separately powered by the included USB cable as well.
10) Easy channel memory presetting and automatic preset recall of the 550 preset memory locations.
11) It also has a digital volume control with a side-mounted wheel with 30 available steps.
12) Finally, but not least of all, we note that this is Tecsun's third generation development of utilizing the recent DSP internal chip (from the USA). In this radio they have now developed a better system for reception of weak am signals that prevents the drop-out signal behavior that has been found by many to be more common on the Grundig G8 (Tecsun) clone and on the Tecsun PL-310 for example. As with all technical developments this is by necessity a compromise solution which will probably be further enhanced overall in the near future.
13) I personally actually prefer the Tecsun PL-310 overall as a useful lw/am/fm/sw radio, but the PL-380 does have some very nice enhanced features that are now incorporated as noted in 12) just above. There is also now an even newer Tecsun, the PL-360, a quite small, vertically oriented DSP receiver that also seems to be a fine quality radio product as well.

CONS:
1) Smallish speaker, but the sound quality is very good for its size.
2) There is no external antenna port on the PL-380 which is surprising since the internal ferrite rod antenna is shorter on this unit in comparison to the Tecsun PL-310 for example. It is also somewhat surprising since the Tecsun PL-380 is also slightly longer overall that the Tecsun PL-310. An clip-on external antenna is also provided with the unit however.
3) No synchronous detection circuit (for controling of fading due to interference) is available which is present on the SONY ICF-7600GR for example.


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11/03/2011

ETON Satellite 750 AM/FM-Stereo/Shortwave/Aircraft Band Radio with SSB (Single Side Band), Black Review

ETON Satellite 750 AM/FM-Stereo/Shortwave/Aircraft Band Radio with SSB (Single Side Band), Black
Average Reviews:

(More customer reviews)
I finally took the plunge and had to find out for myself about this nice looking radio. People complained about SSB reception and the Filters. I was glad I made the decision to purchase this radio as my radio has none of these issues with a serial number in the 1400's! A QSO was going on this morning on 3872.00. I turned on my Yaesu HF rig to verify the this was exactly 3872.00 LSB. To start the comparison against several other radios, I placed the ETON E-1 on 3872.00 and hit LSB and bingo, audio was fine as you would expect it to be. Time for the Sony ICF-2010. Same results, first I hit the USB and audio was weak but audible, hit the correct LSB setting and audio was loud and clear.
OK, now onto the Satellit 750. Placed the radio on 3872, hit USB, BFO set at 1 o'clock position, Normal, and audio was weak but audible, hit LSB and audio was strong and clear. The 750 acted exactly the same as the Sony did .....
This tells me that the 750 has absolutely no issues with SSB reception...
Naturally the operating instructions are not clear on the 1 o'clock position for SSB control. It came from the factory set at 1 o'clock. My Collins 75A-4 has a 1 o'clock position for LSB and a 11 o'clock position for USB, the 750 acts the same way... Since the 750 tunes in 1 KHz steps, you will need to tune the SSB knob at times, but the USB and LSB bandpass circuitry is fine. Yes they should have made the radio tune in 100Hz steps when SSB is on, but that is not the case. The E-1 does tune in 10 Hz steps so it does not need this. The Sony tunes in 100 Hz steps so you can get SSB Close but not exact.. For that reason the 750 is better than the ICF-2010... I used the narrow filter for these test.
OK, now to the issue of the wide filter... After playing with this for about 10 minutes on local AM stations and I mean STARING closely at the S-meter, I would say that the filter has a very slight kick up on the very edges, I mean out at 4 KHz offset. + or - 3 KHz the signal just rolls off, normal operation, as you hit 4 KHz on each end the S-meter might move up a tad, but at 4 KHz you are already loosing signal and reaching the end of the filter. But +- 2 khz the S-meter is flat.. If something is obvious, I do not see it. Tune in a station, S-meter is peaked , tune away either side and the s-meter will fall off as you hit 5 KHz in wide mode. I used the attenuator to keep the s-meter in its mid range.
I am not saying something is not present, but after close examination I see nothing that indicates a problem. I have the Scott and BR sports show on now, 1090, XX1090 San Diego, and have it in wide position for full audio... Sounds great!
OK, all this positive talk, must be something that concerns me, right?? I do have a concern about the battery cover. It does look very delicate, as does the entire radio. This is not a radio to drag off to the beach,,, This is not to say that the battery cover is not strong and one just needs to be careful. The E-1 battery cover has the same concern but so far after many battery changes, the Eton E-1 cover is still fine.
This radio is a fun to use. Keyboard entry is fast and flawless, can't say that about the E-1. E-1 needs to have the decimal pushed, 750 does not... I have not got into the memory or scan functions or timer mode yet.. That should be straightforward...The Monitoring Times review is way out of line... He made non qualified assumptions with many parts of the evaluation. He was concerned it was only a dual conversion and not a triple conversion and might have issues with strong local signals. Here in San Diego, NOT THE CASE.... Plus with an RF gain and 3 position attenuator, you would never have an issue. With Zero attenuation and full RF gain and tuning around a 75K watt AM station, 690, no issues, and I was able to NULL out with the top antenna 90% of this powerhouse station.. Larry Van Horn has done a great injustice to this radio in Monitoring Times. I was skeptical, but had to just prove to myself, I am glad I took the plunge, this radio is not being packed up for return to Amazon... Now I have to figure out where it is going to go in the house. I honestly think it may replace the Sony ICF-6800W now sitting next to my Sangean WFR-1 WiFi radio.. You just have to love radios that have a real S-meter to use...

Click Here to see more reviews about: ETON Satellite 750 AM/FM-Stereo/Shortwave/Aircraft Band Radio with SSB (Single Side Band), Black

AM/FM-Stereo/Shortwave/Aircraft Band Radio with SSB (Single Side Band). When you want full shortwave capabilities and a classic design, choose the Satellit 750. Advanced DSP technology and a 360-degree rotating AM antenna enhance the radio's tuning sensitivity to help you pull in weak signals. You can listen to AM, FM , Shortwave with SSB and aircraft band frequencies, and you can program in up to 100 of your favorites for each band. You can also connect your MP3 player for even more listening choices. Hear what you want to hear.

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10/30/2011

ETON G6 Aviator Buzz Aldrin Edition AM/FM, Aircraft band and Shortwave Radio, Black Review

ETON G6 Aviator Buzz Aldrin Edition AM/FM, Aircraft band and Shortwave Radio, Black
Average Reviews:

(More customer reviews)

When the G6 arrived I must say I was a little shocked as I was expecting a larger package, but as the old expression goes "Size Makes no Difference",and that applies to the G6!
The build quality was extremely good, the rubberized coating and the "just right" weight make for a very good, solid feel.
After a brief scan of the operating manual I placed 2 AA Alkaline batteries in the G6 (you can also use NI-MH batteries and charge them in the G6) but I was very excited and did not want to wait one minute longer, I wanted to play now!
I powered the G6 up and selected the MW AM Broadcast Band, my favorite
for chasing weak, distant signals. I then thought to myself, I need a "Standard" in which to compare the G6. Being an avid radio collector I selected a Tough Act to Follow" radio from my collection for the AM MW Blue Ribbon. I chose my Panasonic RF2900.
Both radios had brand new alkaline batteries installed, as I did not want to deal with AC power line noise, induced into the units by operating from the AC Mains.
It was in middle of the day so I selected a station on 1360 KHz, KWDJ, 1000 watts day, in Ridgecrest, CA, about 100 miles from my location in Lancaster, Ca. At that distance the measured signal strength of KWDJ was less than 100 Micro volts/Meter (Measured on Potomac FIM 22 AM field strength meter)
I placed both radios on the same table ,and rotated the units so their loopsticks were optimized for reception from the direction of Ridgecrest, Ca.
Also note, that in Lancaster, there is a 1000-watt AM station on 1380 KHZ
Its transmitter, less than 3 miles from my location, and in the same heading as
Ridgecrest!
As I tuned the RF2900 to 1360 I heard Dr. Laura, pretty clear along with a fair amount of background noise.
I listened for about 2 minutes to make sure that the signal was steady, which it was.
Now it was "ShowTime" I powered the G6 up, and using the Jog Wheel, I tuned the G6 to 1360...and with the volume set about halfway....I heard Dr. Laura, with about the same amount of noise as the RF2900!
Needless to say, I was impressed.
OK I said, lets take a listen to the low side of the band.
How about a lowly 100 watt AM station XSURF on 540 KHZ in Mexico, over 100 miles away.
I rotated the radios toward Mexico, tuned the RF2900 to 540 ,and there in the noise was XSURF on 540.
I should call the G6, the "Little Engine that Could" because when I tuned it to 540 KHZ, there was XSURF with just slightly more noise than the RF2900, WOW!
The G6 had no trouble in pulling in most all of the Los Angeles radio AM signals which ranged from 75 to 100 miles away with only one 50,000 Watt signal.
Ok, I was convinced that the G6 had great performance on MW AM, but how about FM?
I went back to my radio collection looking for a portable radio to make the comparison, a unit with better than average FM reception, my Eton E5.
On FM a good test would be pulling in KGZO, 90.9 in Shafter, CA
Operating with only 1.9 KW of power, over 100 miles away.
This is a good test of sensitivity and selectivity as my location in Lancaster, Ca, is within the 1MV contour of Superpower 110,000 Watt KPFK at 90.7.
In the past the Eton E5 had no problem in pulling in the KGZO signal in full stereo, with only a slight intrusion from KPFK.
The Eton E5 repeated this task as expected.
After tuning the G6 to 90.9 and with a little playing with the rod antenna, there was KGZO in stereo with just a slightly more amount of intrusion by KPFK, but still listenable!
The G6 had no trouble in pulling in signals from all the Los Angeles FM signals from Mount Wilson, the location of 99% of Los Angeles FM Signals.
On more thing.... do not let the small speaker size fool you, this little baby can fill a small room with pretty good volume.
On Shortwave the G6 is comparable in selectivity and sensitivity to several of my Shortwave rigs including my Eton E5, my Sony 6500 ,and my Sangean 909. The BFO makes copy of SSB a breeze as well.
On VHF I can hear signals from Aircraft and from LAX and Lancaster's Fox Airfield.
On a scale of 1 through 10 the Buzz Aldrin Edition Grundig G6 gets a
BIG 10!
Chris Compton
Professional Broadcast Engineer, and Avid Radio Collector for over 35 Years
Lancaster, CA


Click Here to see more reviews about: ETON G6 Aviator Buzz Aldrin Edition AM/FM, Aircraft band and Shortwave Radio, Black

With the Aviator at your side, you�ll always have great listening options. Tune in to AM, FM, aircraft band or Shortwave frequencies easily with direct keypad entry. Or, use the STOP tuning feature to browse stations and stop on the next available frequency. You can also use D5 tuning to get a taste of what�s playing�stop on the next available frequency for five seconds at a time. Use the international clock and wake-up alarms to keep you on schedule, wherever your travels take you.

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