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Apr 6, 2014 at 5:11 history tweeted twitter.com/#!/StackHam/status/452674953067114496
Apr 3, 2014 at 1:54 comment added Harold Chan Thanks for your help. I can now get some signal peak at shortwave range. But it is only 20dB higher than noise, I cannot hear the voice by those AM stations (But it is ok by using radio). The attached photos show my connection to SDR (SMA - BNC - PAL), would it be also the problem of mismatch impedance? Or other reasons? Please advice.
Apr 2, 2014 at 13:13 answer added WPrecht timeline score: 2
S Apr 2, 2014 at 1:44 history suggested AndrejaKo CC BY-SA 3.0
Made link clickable
Apr 1, 2014 at 21:19 comment added AndrejaKo Did you try testing the up-converter with some other signal? Try connecting a long wire to the female jack of the up-converter input and I think that you should be able to pick up some local activity (at least the local RF junk). I'm trying to isolate the actual part where the problem occurs and see if it's between the antenna and up-converter or between the up-converter and the RTL.
Apr 1, 2014 at 21:06 review Suggested edits
S Apr 2, 2014 at 1:44
Apr 1, 2014 at 18:01 review Close votes
Apr 2, 2014 at 14:20
Apr 1, 2014 at 17:40 comment added Phil Frost - W8II Why do you think these devices can be connected together? What do you expect to accomplish?
Apr 1, 2014 at 16:54 history edited Harold Chan CC BY-SA 3.0
added 364 characters in body
Apr 1, 2014 at 15:13 comment added AndrejaKo I'll study the materials as soon as I can. In the meantime, it would be best if you would post the contents of your comments into the question itself.
Apr 1, 2014 at 14:43 comment added Harold Chan My method to connect is to try to use a small wire to connect the "hole" of SMA connector with the audio plug. I have tried to contact with different part of that audio plug, still no luck.
Apr 1, 2014 at 14:42 comment added Harold Chan Thanks for your help. The model of Antenna Loop is Degen 31MS. The up convertor information is located at code.google.com/p/opendous/wiki/Upconverter. Mine is using 100MHz v1.0 version
Apr 1, 2014 at 14:33 comment added AndrejaKo Also you said you think you connected the upconverter wrongly, but I can't see a description of how exactly you connected it. That might be helpful as well.
Apr 1, 2014 at 14:30 comment added AndrejaKo How about providing some concrete information about the units you're using? Exact model name and website would be good for start. I did try to read the site from the photo, but the domain name was illegible for me. Are there any manuals for the devices? If yes, did you read them? Are there electronic versions available? If so, can you post links? Your question is quite hard to answer for someone who can't immediately identify your equipment from just the photo and you as the asker should try to make it as easy as possible for the rest of us to help.
Apr 1, 2014 at 13:11 history asked Harold Chan CC BY-SA 3.0