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This Item  Panasonic Portable AM / FM Radio, Battery Operated Analog Radio, AC Powered, Silver (RF-2400D) |  |  |  |  |  | |
| Price | $29.99 | -33% $19.99 List: $29.99 | -40% $35.90 List: $59.90 | $39.99 | $26.99 | $27.89 |
| Delivery | Get it as soon as Friday, May 24 | Get it as soon as Friday, May 24 | Get it as soon as Friday, May 24 | Get it as soon as Friday, May 24 | Get it as soon as Friday, May 24 | Get it as soon as Friday, May 24 |
| Customer Ratings | ||||||
| Sound quality | ||||||
| Volume control | ||||||
| Value for money | ||||||
| Battery life | ||||||
| Portability | ||||||
| Sold By | Amazon.com | Yewrich Shop | GagaBlue | JISCO CORP | DreamSky Direct | JeuJug |
| power source | Battery Powered | Battery Powered | Battery Powered | Battery Powered | Corded Electric & Battery Powered | Battery Powered |
| supported bands | AM/FM | AM/FM | AM/FM/SW | AM | AM/FM/SW | AM & FM |
| connectivity tech | Auxiliary | Auxiliary | — | Auxiliary | AM/FM/SW | Bluetooth |
| hardware interface | usb | 3 5 mm audio | 3 5 mm audio | 3 5 mm audio | — | — |
| display type | LED | — | LCD | — | LCD | — |
| frequency | 108 MHz | 108 MHz | 108 MHz | 108 MHz | — | — |
From the manufacturer
RF-2400D
Simple, easy-to-use AM/FM radio
Light, portable handheld radio is so versatile: use it cordless or corded to listen to your favorite stations, and keep on hand for severe weather or national disasters. Digital tuner has a simple, easy-to-use interface, with smooth tuning and clear sound.
Easy-to-see design
Large dial scale with fluorescent pointer allows for easy viewing, even in the dark
Digital tuner = smooth tuning
AFC (Auto Frequency Control) lets you enjoy easy and stable tuning
Plug in or use batteries
Requires 4 AA batteries (sold separately) or plugs into electrical outlet using included AC adaptor.
Great sound wherever you go
10 centimeter speaker and ferrite antenna
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Panasonic RF-2400D Portable Radio In-Depth Review
Tools. Electro. DIY
Reviews with images
Cute little radio
My grandmother's not a TV person, and recently she's had to go to a nursing home for rehabilitation after a serious illness. When I would visit, I could see that she was feeling down because she wasn't interested in the TV there, and she usually listens to her radios at home but obviously they're too big and bulky to have there. She was just staring at the ceiling all day long. So I looked for a small radio here on Amazon, and this came up. It's perfect for her small room and does exactly what we need it to. It has a red light indicator that tells you when you've tuned in to a station all the way which is really helpful, because if you have experience with radios you know that tuning it just right can be challenging sometimes. The sound quality is good. The only thing I will say is we obviously leave it quieter so it plays loud enough for her to hear, but not enough to disturb her neighbor residents(she likes it to play 24/7, so we didn't want them to tell her to turn it off). The volume slider has a limited low range before it starts getting loud, so for people that wanna blast it that's great. For people that want it quieter, you'll have to turn it ever so slightly to get to that sweet spot you want it at, but otherwise, for the purpose of playing music, it does this very well. I can't speak on it's other technical purposes such as use as an emergency radio or anything. My grandmother's very happy with this and it lifted her spirits 100% which is a win for me. I actually think I will get one for myself eventually. Small and lightweight. Great sound. Handle is very convenient. Tune light indicator is amazing. My photo makes it look bigger than it is. It's small, cute, and perfect for a small room with limited space, or to travel with. For the price, I'm very happy with it.
Top reviews from the United States
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Reviewed in the United States on April 20, 2024
My grandmother's not a TV person, and recently she's had to go to a nursing home for rehabilitation after a serious illness. When I would visit, I could see that she was feeling down because she wasn't interested in the TV there, and she usually listens to her radios at home but obviously they're too big and bulky to have there. She was just staring at the ceiling all day long. So I looked for a small radio here on Amazon, and this came up. It's perfect for her small room and does exactly what we need it to. It has a red light indicator that tells you when you've tuned in to a station all the way which is really helpful, because if you have experience with radios you know that tuning it just right can be challenging sometimes. The sound quality is good. The only thing I will say is we obviously leave it quieter so it plays loud enough for her to hear, but not enough to disturb her neighbor residents(she likes it to play 24/7, so we didn't want them to tell her to turn it off). The volume slider has a limited low range before it starts getting loud, so for people that wanna blast it that's great. For people that want it quieter, you'll have to turn it ever so slightly to get to that sweet spot you want it at, but otherwise, for the purpose of playing music, it does this very well. I can't speak on it's other technical purposes such as use as an emergency radio or anything. My grandmother's very happy with this and it lifted her spirits 100% which is a win for me. I actually think I will get one for myself eventually. Small and lightweight. Great sound. Handle is very convenient. Tune light indicator is amazing. My photo makes it look bigger than it is. It's small, cute, and perfect for a small room with limited space, or to travel with. For the price, I'm very happy with it.
Images in this review
Reviewed in the United States on April 8, 2024
Reviewed in the United States on April 19, 2021
I bought two of these radios to use as monitor receivers for a broadcast station's Emergency Alert System(EAS). All the radio has to do in this application is receive a station off the air, and route its audio to the EAS encoder via its earphone jack. Something any analog radio receiver should di very well, right?
I tested the radios as radios and they worked fine. I did notice that the radio has some sort of augmented tuning, and seemed to tune in steps, especially on FM. But when I got the radios close to the EAS encoder, the audio started to cut out, both on AM and FM. It got worse when I connected the earphone jack to the encoder. Thinking that there was some sort of EMI being conducted out of the EAS encoder, I added an inline hash filter of my own design, and this actually made the problem worse. I have never seen a simple radio behave this way. And lots of broadcast stations use inexpensive radios like this as monitoring receivers.
I eventually went to a thrift store and picked up a couple of older radios that worked just fine for this application. Curious as to what circuitry this radio used, I opened one up (see picture) Although not surprised to find most of the guts of a modern radio on one chip, I was astounded by the almost total lack of any kind of frequency selective components. No IF transformers. No ceramic filters I could find. Only one inductor besides the AM bar antenna. And very surprisingly, no tuning capacitor (The tuning control is the pot in the middle of the PC board) So apparently, this radio is some sort of direct conversion receiver, or some sort of software defined radio. I don't know what the chip is, but I do know there are at least a couple AM/FM receiver chips available that use conventional superhetrodyne circuitry. In any case, this solved the mystery of why this radio works so poorly-- it has no selectivity components. If it is hit by any kind of broadband noise (like a poorly shielded digital device, or a room full of them), it quickly overloads the radio's front end. For those who were reporting in other reviews that this radio was intermittently cutting out, it was probably broadband noise causing front end overload.
Despite this flaw, they are fine as an ordinary radio, and I will keep them for this purpose. I just won't use them an any environment with a lot of electronic noise.
UPDATE: I decided to try one of these radios as a monitoring receiver at the radio station the EAS project is for. Much to my pleasant surprise, it worked fine there. And this with the radio about 100 feet from an FM transmitting antenna radiating about 100 watts of RF power. I am not noticing any meaningful desense from the transmitted signal. So now, I need to find out what is different about my home environment that might be causing the original issue.
I tested the radios as radios and they worked fine. I did notice that the radio has some sort of augmented tuning, and seemed to tune in steps, especially on FM. But when I got the radios close to the EAS encoder, the audio started to cut out, both on AM and FM. It got worse when I connected the earphone jack to the encoder. Thinking that there was some sort of EMI being conducted out of the EAS encoder, I added an inline hash filter of my own design, and this actually made the problem worse. I have never seen a simple radio behave this way. And lots of broadcast stations use inexpensive radios like this as monitoring receivers.
I eventually went to a thrift store and picked up a couple of older radios that worked just fine for this application. Curious as to what circuitry this radio used, I opened one up (see picture) Although not surprised to find most of the guts of a modern radio on one chip, I was astounded by the almost total lack of any kind of frequency selective components. No IF transformers. No ceramic filters I could find. Only one inductor besides the AM bar antenna. And very surprisingly, no tuning capacitor (The tuning control is the pot in the middle of the PC board) So apparently, this radio is some sort of direct conversion receiver, or some sort of software defined radio. I don't know what the chip is, but I do know there are at least a couple AM/FM receiver chips available that use conventional superhetrodyne circuitry. In any case, this solved the mystery of why this radio works so poorly-- it has no selectivity components. If it is hit by any kind of broadband noise (like a poorly shielded digital device, or a room full of them), it quickly overloads the radio's front end. For those who were reporting in other reviews that this radio was intermittently cutting out, it was probably broadband noise causing front end overload.
Despite this flaw, they are fine as an ordinary radio, and I will keep them for this purpose. I just won't use them an any environment with a lot of electronic noise.
UPDATE: I decided to try one of these radios as a monitoring receiver at the radio station the EAS project is for. Much to my pleasant surprise, it worked fine there. And this with the radio about 100 feet from an FM transmitting antenna radiating about 100 watts of RF power. I am not noticing any meaningful desense from the transmitted signal. So now, I need to find out what is different about my home environment that might be causing the original issue.
Images in this review
Top reviews from other countries
Sridhar K.
If you're a genuine transistor radio junkie, buy this
Reviewed in India on August 30, 2016Juan Pablo R.
Gran compra y de muy buena calidad.
Reviewed in Mexico on December 21, 2023mar
Versatility, good sound, simple operation in tuner locking AM/FM family radio
Reviewed in Canada on September 4, 2023