Hi Perry, I cut the main body (the four flat arms) with a dremel tool, leaving a thin ring only. Then I (very) carefully "peeled off" that ring. If you do it hastily you'll distort the aluminium part
Hi Steve, There is a cable inside the radio prepared for that, I don't think you have to make any wiring (other than passing the cable through a tiny gap in a PCB). Do you want me to take a photo? 73
Hi Lyman, I don't know why do you have that funny reading on 10 MHz. I have never studied the heterodyne VFO topology or which corrections is the frequency counter making depending on the selected ba
Hi Lyman, Happy to hear that. As others mentioned, you might have some noise getting into the DC bus that is not being properly filtered and finds its way to the audio amplification chain. If you hav
Hi Tom, It is not a difficult job, it is mostly about dismantling, cleaning, lubricating, and assembling back. Parts are small, some are fragile, and go in a certain order. The day I cannot longer do
Hi Mike, What I'm going to propose you is going to sound a bit crude, but it might help. If you have a receiver you can tune it to the frequency where the 555 is operating and instead of using an RF
Very interesting. My understanding of the datasheet is that they are good for 50 mating/unmating cycles and temperature at the junction will rise by 30 degrees with a current of 18A (when within the
Thanks Jim, I found the connectors not reliable enough when they get old... but perhaps nobody was expecting radios lasting as long as some of ours, or maybe it was decided to keep the molex in order
mmm... digital noise from the frequency counter? Can you cut the DC suply to that module and tell us what happens? 73, Carlos VK1EA across all bands and it is in the background. It measures about 1kh
Hi Lee, Gerry VK7GC was selling his Argonaut VI on VKClassifieds not long ago. Plenty of Scouts on ebay at the moment... but that is a completely different animal. What do you want the radio for? SOT
Hi Lee, I have an Argonaut VI at home, and an Argonaut V on the way from the US. The Argonaut VI, taking low level audio from the rear DIN connector and using an external amplified speaker, and tweak
Hi Bob, Yes, ionosounders appear as a moving clean carrier, they can sweep the band you are working in 3 or 4 seconds. What you describe looks to me like a harmonic of a switched-mode power supply wh
Hi, I finished (sort of) an EB-104 module kit some weeks ago. I tested it with 4 x 12V power supplies connected in series and puts 500 W (fundamental and harmonics) with ease. I don't have LPF filter
Hi, I noticed that the AM carrier (in 10 meters at least) is almost 600 Hz lower than the supressed carrier in USB. So in USB the radio is almost spot on, but in AM the carrier appears shifted to the
Hi Bob, Thanks for your message. I was hoping for some form of engineering mode to modify this. I used SpectrumLab as audio signal generator and a R&S FPC1500 spectrum analyzer. In USB works nicely (
Ionosonde ? 73, Carlos VK1EA what I have observed with it is very much on topic. the band (all bands). It is fairy strong. The signal consists of actually three peaks that typically start on the low
For which frequency ? https://groups.google.com/forum/m/#!msg/rec.radio.amateur.antenna/tg8Wmst8uCA/UWInjCQkhQ8J https://www.hamradio.me/connectors/uhf-connector-test-results.html I moved to N and SM
Hi, I just bought an Argonaut VI and got disappointed with the received audio (when comparing it with a Corsair II). When monitoring with headphones it improves a lot, but there is some hiss in the b
Hi, I think that most of you are not understanding the question. - I bought a (lovely) Argonaut VI. - The received audio sounds distorted, it improves with headphones. - To get a feeling of the noise