Radio Geek

Getting FLdigi working with my SDR setup was challenging initially, but once configured it opens up many more modes beyond just PSK31. JS8Call is more sensitive to linearity than FT8/FT4, so your transmitter setup matters more.

yeah the fan thing is real, mine started getting audible around the 3 year mark. i swapped it out for a noctua 40mm and its basically silent now. you do have to do a little adapter work because the connector isnt the same and the voltage curve is slightly different but nothing crazy. theres a thread on eham somewhere with the exact part numbers. the hardest part honestly was just getting the case back together without scratching anything, i always seem to do that.
also on the MARS mod — totally agree its less scary than it looks. i did mine about 18 months ago. just make sure youre doing the right revision of the mod for your serial number range because there were a couple different board layouts and the pad locations moved. the older threads dont always make that clear and i had a moment of confusion before i found the right documentation.

congrats on the first contacts, AO-73 is a great starter bird. i'm pretty new to this too and went through the same doppler confusion a few months back. honestly what helped me was just doing a few passes as receive only first to get the feel for how fast the shift actually is before trying to work anyone. its not as dramatic as i thought it would be, you have a few seconds at least before it becomes a problem.
one thing i do now is pre-program the start and end frequencies into memory channels and just step through them roughly during the pass instead of trying to tune smoothly. its janky but it kind of works lol. definitely want to try the gpredict CAT thing eventually but havent gotten there yet.

i was in the same boat about a year ago honestly. what finally made it click for me was realizing they kind of serve different communities. LoTW is the serious award chaser system, eQSL is more casual and has some neat digital card designs people actually put effort into, and paper cards are just... kind of a tradition that a lot of operators genuinely enjoy. i have a whole box of cards i've gotten from people all over the world and i like flipping through them.
dont stress too much about having all three perfect right away. get LoTW sorted, maybe sign up for eQSL too since its free and easy, and if someone sends you a paper card just enjoy it. you can always send cards through the bureau which is way cheaper than direct mail if you eventually want to do that side of things too.

Six months into building a 7 MHz SSB transceiver from scratch using mostly through-hole components. Finally got the receiver section working reliably - using single conversion superhet design with 9 MHz IF and mechanical filter.
Transmitter uses balanced modulator approach with MC1496 generating DSB, followed by crystal filter for sideband selection. Getting about 25W output with IRF840 in the final stage, class AB configuration. ALC circuit keeps things clean and prevents overdrive.
Next challenge is integrating the synthesized VFO - building Si5351-based design that covers 7.000-7.300 with 1Hz resolution. Planning to use Arduino for band/mode switching and frequency display.
Construction is modular approach with separate boards for each function connected via short coax jumpers. Keeps RF stages isolated and makes troubleshooting much easier.

yeah 40 has been rough here too, W5 land. though honestly i popped on around 9pm local last tuesday and it opened up pretty decent toward the east coast. might just be timing. i've mostly given up on evening 40m and shifted to 30m for digital stuff, way less crowded and propagation seems more predictable for me lately

The theory on the Extra isn't impossibly hard but it's definitely a step up. There's stuff on resonant circuits, reactance, some transmission line theory, filter types — like you you'll see questions about Butterworth vs Chebyshev filters and honestly if you've never touched that stuff it can look intimidating at first. But here's the thing, the question pool is finite. All the questions that can appear on the actual exam are published and a lot of people just grind through the pool with HamStudy or one of the apps and get through it without fully understanding every concept. That works for passing but if you actually want to understand what you're doing, the ARRL Extra Class License Manual isn't bad, or Gordon West's book if you want something a little more approachable. I'd say give yourself 6 to 8 weeks if you're studying casually and you should be fine. As for the privileges, depends what you do. The CW end of 40m and 20m can be nice, and on 75m the Extra portion is quieter sometimes. Whether that's worth it is up to you but finishing the license path has its own satisfaction I think.