开云体育

Hi David? G8PTN Just as a matter of interest how did you alter the Power on the OLED Display to Yellow as it not only looks good but useful 73s? David? ?G4RVH

Hi David? ?G8PTN Thanks for that info on the Tune button,? so once tuned up I will have to be careful not to touch the Tune button.? Most useful thankyou. I could if wanted fit a 2 watts 50 ohms

Hi David, Yes, the ATU-100 should work the way you think. It will remember the last tuned settings in the EEPROM. These are loaded on power up. However, if you short press the “TUNE” button it

Hi David? ? G8PTN Yes all understood.? Yes my transceiver is absolutely fine thanks. So no problems there at all. I am still in shock at those resistors only being 0.5 ohms.? So what I normally do

Hi David, Yes, the resistors would have probably got hot, as well as the bridge, but the radio would have seen a high SWR, so it should have folded back. I hope it has not caused any damage to the

Good Morning David? G8PTN VERY WELL spotted ?.? WOW I've just measured them.? There are what I thought as 100 ohms resistor. I have 2 x 100 in parallel to give me 50 ohms. But having checked

Hi David, Looking through your previous pictures, I think I have spotted the problem. It looks like you have fitted the wrong termination resistors on the Stockton bridge. These are 0.1? (0.05?

Hi David, The bridge windings look correct. Perhaps tomorrow check that you are getting power output from the RFOUT port. 73, Dave

Arrrrrr that's brilliant David.? So I checked the sockets and get a short on both because of the transformer inline.? So is it looking like I've wound the transformer wrong? ???. Hope you can

Hi David, That’s good news. Yes, to see the effect of the RVS voltage, you need to keep the 2.7V on the FWD diode and then inject another lower voltage on the RVS diode. As you increase the RVS

Just checked and put 2.7 volts dc onto the Forward diode Cathode and photo attached. But applied 2.7 volts dc onto refect diode and nothing displayed

Hi David, Images below of the signals I traced out when I did my initial testing. D2 cathode will be the point I have shown as "FWD" at the diode. I hope that helps. 73, Dave

All I did for the Bypass test was to squirt 10 watts plus out into the transceiver port and I put a 50 ohms dummy load on the antenna out of the Atu so unless I had an external SWR Bridge and then the

Check that there is no short from the RFOUT connector casing to the signal trace which is very close. When you did a bypass test, was you able to confirm that there was RF coming out of the RFOUT

Hi David? ?G8PTN Please point me to D2 Cathode on photo . Then I am sure of doing the correct test 73s? David? G4RVH ps I know that both Cathodes are on the LEFT of the photo

Hi David, Yes, the windings look correct. I think this was the picture you took with 11 turns, which you changed. 73, Dave

Could you just check this Balun winding first for me David please the other 2 yellow windings finish at the top back of balun 73s? David

Hi David, Try injecting a DC voltage onto D2 cathode as described previously and see if the meter shows a power reading. I expect you have already looked at the following. - Check the winding

Hi David? ?G8PTN Arrrrrr I did that test today as you suggested in an earlier post.? Pressed Bypass and Transmitted with 10 watts and NOTHING displayed on the OLED Display no power and no

Hi David? G8PTN Yes all ok thanks and I will check this out and report back to you ASAP. It's been the Dr. Today for appointment and Dentist and Car tomorrow afternoon but try to work around to get