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?I wonder if the OPA2134 would be a good replacement?? I haven't looked over the datasheets in detail.? I guess it also depends what you can get your hands on. 73, Michael KM4OLT

Thanks Eddie, ZS6BNE IF earphone jack shorts to ground = No Audio that is true BUT not affect the voltages on IC-10a, as cap C-51 provides isolationunless it is shorted ~ then the voltages would be

Hi Dee The gain of the I side is 3x higher than it should be. But this is somewhat cancelled out by the extra resistance (3.3K instead of 1K) in series to the I-Q balance trimmer pot. The I-Q balance

Hans, Regarding the swapping of R19 & R25 (error on silkcreen) what would be the effect of those two resistors being swapped? I think I allready know the answer but would like confirmation before I

Hi Tom, Good tip :-) 73,s Des (M0AYF)

Should have mentioned also that the current U3S firmware does already have HELL/JT65 and JT9...also QSO modes. I see no difference having FT8 for those that should like to experiment with

God kv?ll Daniel, Tack f?r din hj?lp, men jag vet inte n?gonting i encoder googla eller p? en kodarens spr?k. Om du har lite information om ?mnet kan jag f?rs?ka l?ra mig 73 och tack Joel

Hi group Order 6/10/2017 Shipped 27/11/2017 Received 8/12/2017 in France! Thanks Hans and all the team? 73 Qro Patrick? F6GWE

Sorry,too many QSO modes as it is and most operating,(not saying you guys) are using WAY too much power and not following the band plans. Each new QSO mode to me looks more like a bunch of seagulls

Tnx Hans ?

Hello everyone. I ordered 2 QCX kits for 40 and 20 meters. I have not received them yet but plan to monitor this group to learn about actual events concerning this radio. Happy Holidays

Hi George There is a description of the changes, on the last page of the manual: 1.07 17-Oct-2017 Changed Q6 transistor to MPS751 (was MPS2907 in first kit batch) Corrected typo on p83 para 3 “in

I printed Rev 1.06. What has changed in the newest version (Rev 1.08)? What pages do I need to reprint? Tnx 73 Geo/W2BPI

OK, Hans? cool... If you need a tester :) i have unhealthy amounts of time on my hands at the moment hi.. Dean

Ernie, Been bouncing back and forth between Opera 40m and testing this FT8 on 6m band.Looks like 6m is not too bad but have to run around 50 watts. The big stations seem to be working 6m which

You might try Dale, WC7S. He can be contacted at daleputnam@.... He has done kit building for our customers, many times. ken - wa4mnt

David, Yes WSPR is the obvious choice. It seems to me that many of the other mode "grabbers" are to alert users that a QSO with a spotted station is possible rather than just to test propagation? 73

I asked Giulio IK2DED this question for youtube, but there is no answer yet. I will do the experiment myself.

Hi Andy I would suggest try 400 and 600Hz for the audio phase shift adjustment. If you left it at 800Hz it would not be bad, either... I do not know really the answer to this and I have not tried it