Hello the list, I've heard that the secret to keeping things going in electronics is to make sure you don't let the smoke out (that's what makes it all work apparently). I have again failed to do so.
Hi Markus, Thanks for the suggestion. I am currently using 16 turns of #10 wire for the 50 ohm side and 3 turns of rubber insulated 16 mm2 wire for the low impedance loop side. I would have to use sm
Hi Mike, I don't think that the cores were damaged from the last incident. I was able to run the 250 watt transmitter through it with no problem and no measureable reflected power. I understand that
Hi Scott, The 58 mm 3C90 has smilar permeability to the type 77 I am using but 58 mm is considerably smaller than the 3" cores I am now using. -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd
Hi Alan, I will look at it tomorow as it was too hot to handle today! I don't know if the core is intact or has fractured as it is covered with fiberglass tape. The fiberglass tape has turned yellow
Hi Laurence, I've thought about leaving the box open but I couldn't do that if there was precipitation of any kind. Also might be hazardous to the neighbor's kids - I haven't seen anyone get near it
Markus, Sorry to hear about your PA problem. It's frustrating to be off the air in the peak LF season! -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm DF6NM off air since 03:11. Its
Hi Jim, Thanks for the analysis. The transformer is in a closed weathertight box which I'm sure contributes to the heat build up. The high voltage on the transformer secondary (loop or low impedance
Laurence, Thanks for the information and pictures on your tuner. You certainly had great results and the tuner was very robust indeed. I plan on putting a sign on my tuner as well, something like "Da
Hartmut, Nice captures! You even caught Bill A. and I testing my ATU with continuous key downs from 21:10-21:20 at 250 watts out and 21:35-21:45 with 1 kW output. -- 73 Warren K2ORS/WD2XGJ FN42hi htt
Hello Jean-Pierre, Thank you for the nice capture! -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm Hello all , on the list ! The last night very good copy of the NA beacon : 02:00 to
Dear Jean-Pierre, Thank you for the capture from France! -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm Same local cdx : NA : 0215 ==> 0515 UTC ; XGJ : 0145 ==> 0230 UTC. Best 73 to
Hello Roelof, Thank you for sending the capture, very impressive for anyone, and even more impressive with the Mini-Whip antenna! -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm Nice
Hi Ed, WD2XGJ was on 137.77987 last night running 1kW until 04:00 UTC, 250 watts out after 04:00 UTC. -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm TNX for the many reports! (I'll
Hartmut, Thanks for the report. 20:10 is almost two full hours before the official sunset here in Boston which is 22:04 UTC. -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm 73 Hartmu
Hello Jean-Pierre (f1afj) and Jean-Pierre (f5yg), Many thanks for the report and capture of WD2XGJ! My power 1kW until 04:00, 250 watts after 04:00 UTC. -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4
Joe, Why only 2 of 3 PA modules operating? Is there a problem with the third module? Do you need any parts for it, let me know I have a few spare parts. -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4
Question for the list members, My loop has a step down transformer from 50 ohms to the loop impedance of about 1.7 ohms. I've implemented this with 4 stacked FT-290-77 ferrites and 16 turns of #10 te
Jean-Pierre, Thanks for the nice capture from France! -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm The last night good copy of the TA beacon : 00:00 to 01:00 XGJ , NA ( only trace
Mal, Thank you for the report. WD2XGJ ran 1kW until 04:30 UTC, 250 watts out after 04:30 UTC. I do not run full power all night due to a matching transformer heating problem that I am still working o
