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write your own review of the Redsun RP2100.
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PHO1NL
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Rating: 2/5
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Jan 23, 2010 05:14
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broken again
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Time owned: 3 to 6 months
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my k-po wr 2100(the dutch redsun brand) broke down for the third time now and i'm getting annoyed abouth the radio.got it back with whole new insides but the volume was loose of it's soldering. it is in repair third time now. I think I better buy a extra sony 7600gr, becouse it's the only NON chinse one left in the shops.they make airplane parts to younow!
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PHO1NL
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Rating: 3/5
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Jan 21, 2010 14:23
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the beep
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Time owned: more than 12 months
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I had a bit of troubles with my , dutch k-po wr 2100 (same thing)the prosessor broke and the radio went bzurk. I luckely bought it in a local shop and had great service. you can shut of the beep from the end/begin of the band tuning by pushing alarm when the radio is turned off. when the radio is on you push snoose a few seconds for getting rid of the button beep.
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ZS00011
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Rating: 5/5
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Jan 20, 2010 06:16
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Outstanding portable
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Time owned: more than 12 months
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I have had the radio now for three years of excellent and trouble free service.
MW mediumwave reception on the BCB band still amazes me with it's clarity
and sensitivity. Regular reception of stations that are 5,000 miles/8,000
kilometers away with good readability is possible on a regular basis. The local
stations that are 700 miles/1,200 kilometers away simply boom in with great
sound and clarity. Very impressive on a portable with only a ferrite
internal rod. Provision is made on the back for the connection of a longwire
antenna to a 500 Ohm post, also a ground/earth connector, but I have not
tried this as reception on the internal ferrite rod is so good.
FM band. The most powerful FM receiver I have owned is my Drake SW8, but the
RP2100 is quite a bit more sensitive on the internal whip, and the marginal
long distance signals are a lot clearer. It leaves my GE SRIII and Sangean
818 in the shade.
On SW it's pretty good too, as good as the better SW ortables I hhave owned.
Connecting to AC mains with the built in power supply. This works seamlessly and cuts off the battery and a
mains indicator appears on the LCD display. Only snag is that this
introduces a lot of RFI hash onto the MW band and makes the more distant
stations unpleasant to listen to. It doesn't seem to affect the FM or SW
bands at all though.
Connecting a powerful 50 Ohm antenna for shortwave. I have a RF Systems DX-1
Pro active antenna which produces a very strong signal to the receiver. If I
connect this to other portable's it overloads them badly and even risks blowing the
front end FET's. I connected this to the 50 Ohm input of the RP2100 and enjoyed
amazing SW reception with NO signs of overload at all. Compared with my much
more expensive tabletop receiver the RP2100's performance was impressive and
on many stations the RP2100 was preferable to listen to because of its warm
wide spectrum sound compared to the rather tinny and shallow sound of the
tabletop.
The RP2100 is no tabletop though as it does not have the extensive
facilities of my big Icom to clear up various forms of interference. All you
can do is narrow the bandwidth and offset the frequency slightly either side
to rid yourself of the interference, but often this is not sufficient.
Actually, having owned a Kenwood R1000 for awhile, I think the RP2100 would
substantially outclass it!
The 50 presets/memories have driven me Harpic, that is clean round the bend,
so I no longer use this function. You see, if your favourite station is on
preset 1 and you have been tuning around, when you want to go back to your
favourite station and press the preset button, it will go up one, so you end
up on preset 2. You then have to press the preset button another nine times
to get back to preset one. That's annoying and time consuming, so it is
faster to use the excellent "Q tune" function button to get quickly around
the dial to where you want to be. Q tune jumps one segment up the shortwave
band at each press, and the fast tuning knob will take you quickly to where
you want to be.
Altogether by far the best portable I have ever owned, including my Sony
2010. Very satisfying performance and excellent value for money at just over
$100.
OLLIEOXEN has written two very bad reviews of this radio and I can
only assume he has a faulty one that should be returned.
John Plimmer, Montagu, Western Cape Province, South Africa
South 33 d 47 m 32 s, East 20 d 07 m 32 s
Icom IC-7600, Perseus SDR
ERGO software
Drake SW8. Sangean 803A, Redsun RP2100
Sony 7600D, GE SRIII, Grundig G8, Eton E100
Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270
Kiwa MW Loop.
http://www.dxing.info/about/dxers/plimmer.dx
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OLLIEOXEN27
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Rating: 1/5
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Nov 15, 2009 11:21
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over rated
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Time owned: 0 to 3 months
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I've had this set for two weeks now and can only say I don't know how this radio received so much praise. The radios biggest weakness is it's audio quality. It is just plain dull. It reminds me of my old R75 in so much as they seem to have found a way to narrow the audio frequencies instead of just the RF frequencies which would have sounded a lot better. This leaves the radio with a rather hollow sound much like we've become accustomed to from radios from China - Degen 1103, etc. I like robust audio and the only thing you can do here is completely reduce the bass to gain some crispness in the sound but it doesn't work. For me a radio that doesn't sound good is just a large paperweight.
Second, this radio is noisy. Also, the background doesn't sound deep but very shallow which also contributes to the hollow sound. One star for me.
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KB0GXM
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Rating: 5/5
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Nov 6, 2009 08:04
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Geat Radio
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Time owned: 6 to 12 months
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I wanted a portable radio, mostly for MW, to replace my Superadio III.
The 2100 is a hot receiver, adjustable bandwidth and has a good FM side. I don't know too much about the SW, but overall this is a good replacement for the III.
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OLLIEOXEN27
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Rating: 4/5
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Nov 4, 2009 12:37
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Good with nits
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Time owned: 0 to 3 months
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The Redsun RP2100 works best on AM. On shortwave the radio is unusually suseptible to RF noise, hash, and or synthesizer noise even on batteries. Recently I listened to All India Radio on 9445 in the afternoon. It was very readable on my Grundig G8 but the Redsun had trouble with it. I think it's actually the radio's noise floor.
I would in no way compare this radio to a tabletop set on SW. It's well worth the price on medium wave though.
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KA9ZMZ
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Rating: 5/5
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Aug 20, 2009 06:25
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Great SW Radio
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Time owned: 3 to 6 months
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I have been an SWL all my life. In recent years I have used a Sony 7600 and a Sangean 505. They were good radios and I got a lot of use out of them but they were not as fun or fun to listen to as the 2100. I have always gone for potability over sound. While considering which radio to get this time, it was between the Tecsun pl600 or the 2100. I decided I might like the better sound. I was right. It is a pleasure.
I would like to also say that the ordering process and time for shipping and delivery were amazingly short. I was surprised at how it was shipped though. The box that the radio is originally packaged in for the store shelf has a thine layer of bubble wrap around it. Then green paper with string on the outside. When I opened the box the styrofoam inside was pretty busted up but the radio was fine.
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KC7JBB
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Rating: 5/5
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Dec 1, 2008 00:06
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Great Radio
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Time owned: 3 to 6 months
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My 2100 happens to be the C.Crane version, so I guess I could have posted in either the Kaito or Redsun section. I will not rehash all the technical attributes, as they have been pretty well covered.
First let me say I really enjoy this radio. I have always liked this size of radio, you get a descent size speaker( = good audio), generally you have buttons and controls large enough to make operation easy, and the radio is stable when sitting on a table.
Shortwave is very good, as good as my 1103, SSB is great, allthough I dont use it much but I did want the capability. Mostly I listen to AM radio and the 2100 excels at that. It is just a great radio for whatever your use.
The 2100's size, audio quality, and sensativity remind me of my Satellit 400, and since they dont make those great Grundigs anymore we can still have something that performs very much like it. Did I say it was a great radio? :)
73's
KC7JBB
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NWLORAX
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Rating: 5/5
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Nov 20, 2008 19:22
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Amazing for the Price
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Time owned: 0 to 3 months
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I took the plunge this month and bought one via eBay. The receiver has very low noise, at least on battery power. The FM has a bit of noise, but that is likely because Bremerton (QTH) doesn't have many Seattle broadcasting towers pointed in this direction. I dx on the bcb with a passive external tuned antenna (DE-200, I think). The number of stations I can pull in is extensive-Colorado, Utah, California, Manitoba, Oregon, Idaho and hopefully one day, some Japanese or Korean dx. Short wave is very good, slightly more sensitive than my DE1103, I think, and the external BFO (also by Tecsun/Redsun) has finer tuning than the 1103. The RP2100 is a table top sort of radio, and can't directly compare with the 1103, which fits into a pocket. The only things that could make this any better would be a 2.4 KHz and a 500 Hz filter for ssb and digital mode reception.
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N3OJD
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Rating: 5/5
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Sep 22, 2008 20:08
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RP2100 vs. ICF-SW7600GR
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Time owned: 0 to 3 months
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Here's a P.S. to the review below. I tried comparing my old tried-and-true portable Sony ICF-SW7600GR to the RP2100 in combination with the Tquchina SSB Adapter. An hour listening to 80M sideband led me to the conclusion that the RP2100+SSB Adapter blows the Sony out of the water.
The '2100+SSB was consistently stable on frequency with less background hiss and more listenable signal. That's not to say that one radio might miss a signal that the other would hear. It's just that the Redsun was easier listening all around for any length of time.
You may want to ride the RF gain on the Redsun for the least distorted SSB audio so if you don't like to fiddle, this set-up may not be for you.
Also keep in mind that the '2100 + outboard SSB adapter is NOT a portable by any means. The combination takes a fair amount of desktop real estate whereas the '7600 will fit in just about any suitcase. But none the less the '2100 is an interesting discovery and as I say below, a heck of a lot of fun.
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