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June 20, 2013

Comments

Paul

Is there a soft mute when tuning between AM stations? Is the tuning analog-like or snaps to stations in a digital fashion?

Paul

Does the radio tune only in 5 kHz steps in SW? This was not clear from the review.

val

Paul:Soft mute.? It's more like pll digital tuning with 10kHz step on MW. Yes it is soft. Unfortunately is only 5 kHz step on SW.

Paul

By soft mute I mean this: when you go from one station to another on AM or SW (say from 710 to 720 kHz on AM or 5975 to 5980 kHz on SW), does the radio mute, or reduce its volume level, or can you actually hear noise in between the two stations? See the Kaito Ka321 review at
http://radio-timetraveller.blogspot.com/2013/04/review-of-kaito-ka321-dsp-receiver.html

If there is such a soft mute, this is not a DX machine to search for weak signals.

swl

Cheap DSP Full Band - $24,70 Free Shiping

http://dx.com/p/sy-sy-dp100-portable-2w-dsp-full-band-rechargeable-radio-w-tf-usb-3-5mm-jack-black-3-x-aa-221170

val

Paul: aren't no if I can answer your question, I don't have Kaito Ka321, but Tecsun it is not AM DX radio. Even average signal from MW loosing volume dramatically. I can't listen it with out good head phone.
It is enjoyable simple and stable tuning on FM, that's why I give this receiver positive opinion but it's not like you tune HD FM radio with incredible sensitivity and selectivity with out noise on near frequency and ability too get two stations on the same freq.
On SW I can listen two near buy signals with out noise but with 5 kHz step it is not surprise me.
I hope it's help.

Paul

SWL is this Shouyu radio the same as the SY-X5? The web site says SY-DP100 but the photo says SY-X5.

Paul

Val, can you share the PDF user manual for this radio?

owl

Thanks for the review, Val.

I thought about ordering one but for some reason the seller won't post this model to EU countries (just EU, not other European countries).

It would be interesting to know exactly what DSP IC is used for this model. Previous reports said it's Si4831, which couldn't be true since Si4831 didn't support SW. The more likely candidate is Si4835 (with the same SW coverage as on R2010D).

However, I saw some inconsistency in SI's documentation. The introduction to the Si483X family states they are "2nd generation" analogue-tuning digital display DSP radio IC. Strangely, the datasheet of Si4831/35 does not mention the digital display at all. There is no reference to an ATDD programming guide (there is one for Si484X to implement digital display) and the block diagram of Si4831/35 shows no data bus to connect to MCU either (there is one on Si4844).

val

Paul:
I send to Jeff

Paul

Radio news:

Shortwave radio works when all else fails
http://www.dailyprogress.com/news/mckenzie-shortwave-radio-works-when-all-else-fails/article_50047e64-d6ef-11e2-8e48-001a4bcf6878.html

Introducing the Shortwave Radio Audio Archive
http://www.southgatearc.org/news/june2013/introducing_the_shortwave_radio_audio_archive.htm

Paul

Anon-co (Ebay seller) has posted a video showing FM, MW, and SW tuning on the R-2010D. Unfortunately it does look like it tunes in fixed increments of 5 or 10/9 kHz:
http://www.youtube.com/watch?v=LyNTe4mb-MQ

Gary

Here's another review of the Tecsun R-2010D.

http://swling.com/blog/2013/06/a-review-of-the-tecsun-r-2010d-shortwave-radio/

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