XHDATA D-808 Portable Digital Radio FM stereo/SW/MW/LW SSB RDS Air Band Multi Band Radio Speaker with LCD Display Alarm Clock External Antenna

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I’ve been operating under an assumption similar to yours: that a retailer like Kaito USA may re-badge this radio for the US market. In the meantime, D-808 retailers aren’t allowed to be competitive in the US/Canada. The S-8800 is good on LW, MW and very good on SW. A nice radio, but the distortion on SSB at the beginning of a transmission is very annoying. I find most of the DSP radios noisier with a harsher sound than the PL-660. I) Amidon 7.5” x .5” ferrite rod, part no. R61-050-750 (MW model) OR part no. R33-050-750 (LW Model), available at http://www.amidoncorp.com/rods-and-tiles/

https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20180314172434&SearchText=XHDATA+D-808 Nevertheless, it's possible to listen to amateur radio transmissions and I don't see it as a substitute for a "full size" station receiver. I’ve read a similar comment in one of the other posts about the D-808, so it’s possible that a few units come with this issue. Are you using the proper unprotected 18650s with pin? Another thing to rule out as a potential culprit would be the charger, but I guess the 808 shouldn’t indicate a fully charged battery then. I hope you have no trouble getting the 808 replaced!In addition, the R-108 includes longwave frequencies. Something I know will please a number of our readers.

There is much room for improvement though – for example the slightly borked control of the DSP, the chuffing/tuning and AGC issues on SSB let the D-808 miss the title “most stunning cheap little radio ever” by a hair. I have both the D-808 and PL-660. I have to say my experience is contrary to some of the findings in this review. My PL-660 trounces the D-808 on LW. It’s not even close. Even at night here in the UK the D-808 struggles to get BBC Radio 4 on 198khz. Pretty much nothing else. The PL-660 pulls in all the main stations from Europe, some very strongly. On MW they’re both very similar, a slight edge to the PL-660. This amazed me because when I got the PL-660 the other day I was buying on the expectation that MW and LW were poor. A bonus!FM stereo / MW / LW/ SW SSB and Air Band radio, with high sensitivity and good selectivity, and the user-operation friendly Great review. Would be interesting if you tested them both with a passive MW loop as I find that the xhdata is rejecting signals rather then enhancing them and raising the noise floor, whereas the Tecsun pl-880 will accept the tuned passive loop. When switching to SSB a “loading bar” shows up first, the entire process between hitting the “SSB” button and getting reception again takes 5 seconds. Actually, these radios basically consist of a “radio-on-a-chip” and a microcontroller so it really might be a loading bar we see there. This controller seems to be not exactly fast in the D-808 anyway, so even using the tuning knob comes with occasional hesitations – I advance the main tuning encoder one indention and the freq I tried to remake the input circuit, but there were difficulties with the exact matching of the tuning frequencies and everything was returned to the factory state. Shortwave Single Side Band (SSB) minimum step is 1kHz, Upper Side Band (USB) and Lower Side Band (LSB) reception independent

If your new review has not been Approved after several days you can assume that it was found to not be within the product review T's&C's shown below during screening. The manual is awful, both incomplete and just plain wrong. Let’s say you want to direct enter a frequency like 7850 kHz or 89.7 MHz. The manual says to press the FREQ key and then the numbers, but for these frequencies the FREQ key has to be pressed again at the end. Who knew? It needn’t be pressed again for MW stations. Using the D-808 again after a few years reminded me that this little China-made receiver offers no less than SEVEN bandwidths, in AM mode. Let me say that again: SEVEN (7) bandwidths.Due to product quality problems within 3-12 months of receiving the product,we can repair it for free, but the customer pays for the logistics costs incurred. The D-808 also has fine tuning capability. This is not the same as the Tecsuns which actually enable you to re-calibrate, and with adjustment that remains set for both USB and LSB. On the D-808 you fine tune to zero beat, but have to repeat the correction for LSB and USB on the frequency you’re on – it’s a bit more twiddly, but on my 808 the fine tuning is nonetheless very smooth. Thank you for sharing this technical overview of the XHDATA D-808, Gary! I’m looking forward to the antenna mods you’ll no doubt make to this compact DX machine! That even regular good signals outside the filter passband can trigger unwanted AGC action might be more or less common with most of those DSP radios. The massive worldwide contest activity on March 24/25 was a nice opportunity to test that. Even though I fled to the less crowded upper region of the 20m-band and it was an hour after sunset so the band was closing, I noticed the AGC was pumping a lot while listening to a contester with a moderate signal. It could be the the ceramic filters (which are said to have better out-of-band rejection) or just the way my Tecsun’s AGC works (or malfunctions) differently, however this effect is much less pronounced on the PL-660. Frequency stability, accuracy, birdies, quirks A valid product review is one where you have experience or knowledge of the product that you would like to share with others.

Only below 3 MHz it’s not all that great on the whip, and that’s where the D-808 beats it – listening to top band (160m) hams works surprisingly well for a 25 inch whip. Between 3 and 30MHz the D-808’s sensitivity appears to be almost on par with the PL-660, the PL-660 often wins in terms of intelligibility at the “minimum discernible signal” (MDS) threshold. For example, on a day with bad conditions Gander Radio on 6604kHz USB had a barely audible signal on both radios. But I could occasionally decipher some words on the Tecsun that didn’t make it through the noise on the D-808. These photo finish victories for the PL-660 can be observed across most bands, but it needs ridiculously weak signals to spot the difference. I also use a Marantz PM5005 integrated amp to route audio to bookshelf speakers with great results, but all amps connected to ac supply will not work, they need to have very clean power supply so as to not introduce noise and signal interference.For example: there is a whole section on the “CHARGE BUTTON.” There is no such button; the text is a leftover from the manual for a predecessor product, the Digitech AR-1780. The D-808 starts charging automatically without pressing any buttons.