Junk ,yes if I had supplied you with a kit with the wrong part in and a piece of paper saying the part with 2paint dots on it is ic6 and it blew up you would soon be after a new kit off me wouldn't

Thanks Pat! So the idea is to connect the noise bridge's antenna port to 50W PA's RF in/impedance match network, and the receiver port to a radio, and put the PA into TX mode. Then adjust the

Alan Thanks for the reply. Yes, Q1 and Q2 are working fine. I get "12v" (actually 9.29v since I am running on 9v) on R2 when I go to TX. On RX is it 0v. 73 Paul

I also fond out that for some reason slot 2 is not working. All my bands are now working and slot 2 is open. Will debig later after I enjoy using it for a few weeks. Marty N7MKA

Paul, Rather more likely is that the forward bias is not reaching the diodes. If that is so then the RF would get rectified and produce a negative voltage. Your snip stops short of the possible

Hi Julian, I have 2,5 v there and at the other side of C 40 there are 6.7 V It is funny Decoder and S meter will work if I push the menu button and back. I then will decode incoming signals more or

Same experience here .... great little rig ..... have OCX-20 with the metal case =) Had it out yesterday playing radio in the park using a 8-AA battery pack that is YEARS old .... maybe next payday

On Sun, Apr 3, 2022 at 09:47 AM, Martin , M0CTK wrote: All i can say is what a pile of JUNK . Martin M0CTK.Please put your pile of junk in the mail to me and I will put it in my recycling bin for

Oh, I should have said that if I look out the output of the voltage doubler (junction of D7/D8), I get approx 50v DC on TX 73 Paul M1CNK

I'm having some issues with my ODX Rev 1 kit. The main issue I have is that the power out in TX is about 18-20dB too low. The QDX is running from 9v on a regulated bench power supply. Having done

I have built this linear and adjusted the bias pots according to the manual. Then I connected a Signal generator UTG900E , sinus waveform 14dBm 50 Ohm terminated to the input and a Digital SWR/Power

"NOISE BRIDGE" =) -- 73's Pat N5VMO

How does it behave with a dummy load? -mike/w1mt

Thank you both Dave and Bojan! I found a good article explaining this idea (https://www.rfcafe.com/references/electrical/vswr-reduction.htm). Is my understanding correct that an attenuator helps

Thanks Tony. My volume is set to 17. Just for kicks I tried setting it to 7, and still had the same result.

Exactly, a 3 dB attenuator at the PA input should bring 6 dB improvement in return loss. In your case it means VSWR instead of 2:1 ---> 1.4:1. 73, Bojan S53DZ

Thanks for the reminder Johan! I had upgraded the firmware to the latest 1.03 before doing any TX. 73 Glenn VE9GJ

Hi Zhenxing An inline 3dB attenuator between the 705 output and the 50 watt amp would help. Cheers de Dave VE7AHT

Check your sidetone volume setting in the menu. I had my QCX for 2 years before I realized it existed, and it turned out it was set to the maximum value. Dialing it down to maybe 15 or 20 (out of a

Hi all, I'm a CW beginner and the 50W PA really helps a lot in getting QSO done! I initially paired it with QCX+ but unfortunately after a few QSOs, the PTT output of QCX+ got damaged. After that, I