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URL Correction - NRC Facebook  View Printable Version 
Tuesday, March 12 2019



URL Correction - NRC Facebook  View Printable Version 
Tuesday, March 12 2019



the (TP) joint is jumping  View Printable Version 
Tuesday, March 12 2019

in Victoria, lots of signals 1415-1420UT from Japan etc. particularly upper

best wishes,



CHFO 1350 Gatineau  View Printable Version 
Tuesday, March 12 2019

We have been in Ottawa for a week now, and not a sign of them. (I was
extra keen to hear them last week as I was filling out a radio ratings
diary.) When we were here october to January,they were usually on and a fun
listen. (I still have CJEU 1690 to listen to French music and gab.)

A quick search shows no sign of an internet presence, or announcement of an
interruption. Years ago, I would have telephoned them, but my French is now
not so good...

New Edinburgh Ont
Sangean PRD15


XHDATA D-808 and Radiwow R-108 Loopsticks  View Printable Version 
Tuesday, March 12 2019

For those who weren't aware of the fact, XHDATA and Radiwow are actually the same Chinese company, which has specialized in wholesale design appropriation of the C.Crane Skywave SSB's technical innovations (in the D-808) and physical cabinet characteristics (in the R-108). As for why they choose to go by two different names, maybe they figure that C.Crane would be less inclined to sue two companies for design theft than one? Of course C.Crane can't sue anybody in China, where the term "copyright" means "the right to copy." The Fortuna, CA company has reason to deeply regret building their breakthrough Skywave SSB model at the Redsun factories in Shenzhen-- which is of course the home of XHDATA/ Radiwow.

Anyway, since both reverse-engineered models have been "Supercharged" here with 7.5" loopsticks, I thought some DXers might like to know about their stock loopsticks. In the XHDATA D-808 model the loopstick has a 98mm x 8mm x 4mm ferrite rod with a 12mm coil, for a total inductance of 341 uH (see detailed photo posted at https://dreamcrafts.box.com/s/nimnw5jffcnk5h11yvumsy479synihvv

The Radiwow R-108 has a 70mm x 8mm x 4mm ferrite rod with the same 12mm coil, for a total inductance of 212 uH. Of course because of the longer loopstick the D-808 has significantly better MW sensitivity than the R-108, and in fact has better MW sensitivity than any Ultralight radio (the D-108 is a little too large to qualify as an Ultralight portable).

Following the typical practice of companies in the Chinese domestic market, XHDATA/ Radiwow does not offer any manufacturer's warranty on their radio models-- but this doesn't seem to have deterred their sales on the international market. When a purchaser can get a $ 75 model like the D-808 which is highly competitive with the $ 169.98 Skywave SSB (with a few added features like a more powerful audio amp and a long endurance rechargeable battery), sales are definitely going to happen. So far the component quality of both the D-808 and R-108 seem quite good, and international purchasers are cautiously optimistic that this will continue. Hopefully this Chinese company will avoid the Tecsun example of cutting down quality (as in the PL-380's digital shielding) in order to increase profits.

73, Gary DeBock (in Puyallup, WA, USA)


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