Many thanks to SWLing Post contributor, Dan Robinson, who shares the following video which shows how connecting an external antenna to the HDR-747 extends reception range down to longwave:
Click here to view on YouTube.
Thanks for the tip, Dan!
Note: Dennis adds that the antenna used in this video can be found here.
Many thanks to SWLing Post contributor, Frank, who writes:
Hi Thomas,
Last week I acquired a HanRongDa HRD-747. Really astonishing – a good receiving mini portable with wide range and many features.
Therefore the manual is very important especially because there are only a few knobs to manage all functions.
In my opinion the paper manual is too small (or my eyes are too old :-)) and without textual structure. And no way to get it online. So i have made an english manual based on the original hoping it will be helpfull not only for me.
Friendly regards
Frank from Germany
Thank you, Frank, for creating and sharing this manual!
Many thanks to SWLing Post contributor, Mei Tao, who shares the following:
Hi Thomas:
Before the Chinese New Year, I received a prototype of the HRD-747 radio and was asked for suggestions on how to improve it. As far as I know, this little gem will hit the Chinese market in April.
Here are its major features and some photos:
- More like a handheld wideband receiver: covers UHF?300—520MHz), VHF?30—300MHz), AIR, FM (64—108MHz), SW, MW, USB, LSB, WFM, NFM, and AM.
- Based on a DSP chip?sensitivity and selectivity are excellent.
- SSB?selectable USB/LSB?reception with 10Hz step tuning.
- Multiple tuning methods: ATS, presets, manual tuning, auto tuning, etc.
- Equipped with tuning knob.
- Bandwidth is selectable.
- Squelch level can be adjusted.
- ATT control, external antenna jack.
- 1000 memory presets.
- Powered by BL-5C cellphone battery (removable).
Sincerely
Mei Tao
Thank you, Mei Toa! The HRD-747 certainly offers a wider frequency range that we’re used to seeing in small portable radios. I’m very curious how sensitive and selective it is in those higher VHF/UHF bands and if imaging or poor selectivity are issues.
Thank you so much for the preliminary info!