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RemoteHams SDR setup keeps dropping connection mid-QSO — anyone else dealing with this
could also be something boring like the ISP at the remote site doing traffic shaping or throttling UDP after a few minutes. had a buddy with a similar setup and his ISP was the culprit, totally random disconnects that looked like a device issue but wasnt. worth throwing wireshark on it if you can get access to a machine at the remote end just to see if the packets are actually making it out or dying somewhere upstream.
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First SOTA activation this weekend, totally lost on a few things
oh man i did my first activation like two months ago with almost the exact same setup, FT-818 and a dipole. honestly just go do it, you'll figure out most of it in the field. i was way overthinking it beforehand. the 4 QSO minimum sounds intimidating but once you get spotted the pile up comes pretty quick, at least on 40m in the morning. one thing i wish someone told me — bring way more battery than you think you need, the 818 eats through them faster than i expected especially if youre scanning around a lot before you find a clear spot
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finally did the TX mod on my 857D — some notes
the AGC mod is worth it imo, at least if you do any SSB on crowded bands. the stock AGC on the 857 is a bit aggressive and you get that pumping effect when there's a strong signal nearby. the mod basically changes a couple resistors to slow the attack a little, i think R1159 and R1162 but dont quote me on that, check the actual mod writeup because i cant remember the exact values i used. made a noticeable difference on 20m during a contest weekend. also since youre already going in there — if you havent already swapped the fan for a quieter one thats another easy one. the stock fan is loud and the replacement is maybe a 5 dollar part. some people add a small resistor to drop the voltage slightly so it runs slower at idle. i did that and the noise floor in my shack dropped enough that i actually noticed it on voice operation.
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js8call vs ft8 for actually having a conversation — is it worth the learning curve
js8call is worth it but yeah the learning curve is real and the activity thing is a genuine problem depending on when you're on and what band. 14.078 is the main watering hole and i find mornings on the east coast are pretty decent, evenings hit or miss. the store-and-forward stuff for emcomm purposes is actually pretty cool once you get your head around it — you can leave a message for someone and it'll get relayed if another station hears it and has the right settings turned on. the interface honestly isnt that bad once you stop comparing it to wsjt-x because its doing something completely different. think of it more like a slow chatroom thats also a mesh network. i ran it alongside my normal ft8 sessions for a few weeks before it clicked. the 15 second timing periods mean youre not racing to respond and conversations actually happen even if theyre slow. if you like psk31 for the conversation aspect js8call will probably scratch that itch better than ft8 ever could. psk31 obviously has better throughput for casual ragchewing but js8call will pull through conditions that would kill a psk31 qso, which is the whole point.
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winlink setup woes - RMS gateway not connecting, not sure what im missing
one thing nobody mentions is that a lot of the RMS gateways you see in the list are just not that active or have crappy upstream internet connections. i've had way better luck sorting the list by distance and then checking the last heard timestamp -- if a gateway hasnt been heard in like 6 hours during normal operating times thats a red flag. also some gateways run on specific schedules or their sysops just dont maintain them well. also worth trying telnet mode first just to confirm your winlink account is actually set up and messages route correctly before you blame the RF side. if telnet works fine then you know the account and software config is good and its purely an RF/vara problem. took me a while to think of that but it narrowed things down fast.
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field comms setup for this weekend - generator vs battery question
so ive been putting together a go-kit style setup for a local ARES exercise this weekend and im going back and forth on the power situation. the event is about 6 hours of actual operating time, maybe more if things run long, and ill be running an IC-7300 plus a small laptop for winlink and maybe a second VHF radio if needed. right now i have a 100ah LiFePO4 battery that i picked up last year and it's been solid for shorter stuff but im not sure if thats gonna cut it for a full day especially if i end up running higher power on HF. ive also got a 2000w inverter genny that i could bring but honestly it feels like overkill and the noise thing is always a headache at these events, people complain and then you gotta move it far enough away that the extension cord situation becomes its own problem. the antenna side is pretty settled, im going with a linked dipole for 40/80 and maybe 20 if i can get it high enough, center fed with some cheap coax i need to probably replace at some point. support is a 31ft spiderbeam pole which has been great. thinking about rigging it as an inverted V off the pole. anyway the main thing im trying to figure out is whether that 100ah battery is realistically gonna do 6+ hours with that radio load or if i should just suck it up and bring the genny. anyone run similar setups and have a feel for the actual draw?
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first WWFF activation went better than expected, few questions though
congrats on the first one, 47 contacts is a solid debut especially if you werent self-spotting aggressively. for the log submission yeah you basically upload to the WWFF logbook of the world system and then KFF pulls from that or you can submit through the KFF side, ive found just doing it through the WWFF portal covers both but double check the KFF website because they updated their process a while back and i havent activated since spring so things might have shifted slightly. the zero activations thing is totally normal, a lot of references got added to the database from geographical data imports and nobody has ever actually gone out there with a radio. so yes you are likely the first, which is kinda cool. you can sometimes find old expedition reports on the WWFF facebook group or the reflector if youre curious but officially if the logbook shows zero youre the first recorded activation. 80m late afternoon can be great for picking up nearby hunters who are chasing awards and just getting on after work, its kind of a different crowd than the daytime 40m pileup. depends how patient you are and whether your antenna is decent on 80, an EFHW cut for 40 is gonna be a bit of a compromise but probably workable with a tuner.
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finally got a linear transponder pass working but tracking is killing me
IO-86 doesnt have a linear transponder its FM only just so you know, might be thinking of a different bird. AO-73 is linear though and its a good one to practice on when the attitude control is cooperating. i went through the same thing with gpredict and hamlib for like two weekends before i got it stable. turned out my hamlib rig model was wrong by one digit and it was sending commands to the radio but they werent taking. worth double checking that. also make sure the polling interval in gpredict isnt set too fast, i had mine at like 500ms and it was overwhelming my serial adapter.
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first ARES activation - didn't really know what to expect honestly
passing traffic at an actual shelter during flooding is not nothing, thats real emcomm work right there. some guys in my group have been in ARES for years and never had an activation that wasnt a drill so you're already ahead of a lot of people just from that experience. one thing i'd say - get AREDN on your radar if your group uses any kind of digital infrastructure. not essential but it comes up more and more at the EOC level. or even just get comfortable with Winlink because a lot of served agencies are starting to expect that alongside voice.
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going from 5wpm to 20wpm — feeling stuck around 13-14, anyone else hit this wall?
I'm kind of in the same boat actually, hovering around 12wpm and feeling like my brain just refuses to go faster lol. One thing I read was that you're supposed to stop thinking of letters and start hearing whole words as sounds, like how CQ or 73 just sounds like one thing after a while. I havent really figured out how to get there yet but maybe thats the thing you're missing too? idk just a thought. Also have you tried just listening to QSOs on 40m or somewhere, even if you can only catch every third word it might help your ear get used to faster stuff.
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built a 40m dipole this weekend, some questions about the feedpoint
so i finally got around to building a proper 40m dipole instead of just using the random wire ive had up for like two years. cut it to the standard 468/f formula which gave me roughly 66 feet total, used some 14 gauge stranded wire i had left over from a fence project, and hung it in an inverted V off my pushup mast in the backyard. center is about 30 feet up and the ends are maybe 8 feet off the ground. feedpoint i just used a choke balun i wound myself, 10 turns of RG-8X through a FT240-43 toroid i ordered off ebay. swr came out around 1.4:1 at 7.150 which honestly isnt bad but im wondering if i should bother tweaking it down or just leave it. the ends of the wire are just tied off with some paracord to some fence posts and im not sure if the soil conductivity back there is affecting anything since its pretty rocky terrain out here in the high desert. also curious if anyone has thoughts on the wire gauge, 14 seems fine but ive heard people say thicker is better for lower bands, not sure if thats actually a real effect or just old timer advice that doesnt really matter at these power levels (running 100w)
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first POTA activation went sideways but still had fun
haha welcome to POTA, forgetting something critical is basically a rite of passage. i did my first one without a pen to log contacts, ended up scratching callsigns into the dirt with a stick so i wouldnt forget them. the rain thing is real though, i keep a small ziploc bag in my kit now just for the radio, saved me twice already on longer hikes. 12 contacts on a compromised antenna in the rain is honestly not bad at all for a first one
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finally did the TCXO swap on my IC-7300 — worth it or not?
yeah I did the same mod maybe 8 months ago. agree its worth it for digital modes, i was having issues with FT8 decode rate being slightly worse than expected and after reading around figured the oscillator drift during warmup was part of it. after the swap my decode numbers came up noticeably in the first few minutes of a session. the install is easy, honestly the hardest part is just not losing those tiny screws when you open the bottom panel lol. one thing i also did around the same time was the fan mod — there's a resistor swap that makes the fan kick in earlier and run a bit faster under load. doesnt make a huge difference thermally but its one of those things that makes you feel better about running the rig at 100w for extended periods. if you havent looked into that one its pretty trivial to do while you already have the covers off.
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thinking about upgrading to General, how hard is the exam actually
just passed my General like 6 weeks ago, same situation as you basically. the math on the test is not as bad as people make it sound, most of it you can just memorize the answer to without actually understanding how to do the calculation and you'll still pass fine. the part i actually found tricky was some of the operating procedures and band plan questions, stuff about which modes are allowed where on HF, that kind of thing. definitely go through those carefully 40m is great btw once you get on there, especially in the evenings, you can work some pretty decent distances even with a simple wire
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when does 10m actually open up? trying to understand solar flux numbers
yeah i went through the same confusion when i started. what helped me was just bookmarking spaceweather.com and also the NOAA space weather prediction center — they have these short term forecasts that kinda help you plan. i started keeping a little log of what the flux was on days i actually made DX contacts and after a few months you start to get a feel for it. also 10m can open really fast and close just as fast. like i had a crazy opening to japan last winter that lasted maybe 25 minutes and then just gone. so sometimes you really do just miss it. dont get discouraged, when 10m is cooking its genuinely one of the most fun bands there is
☀
Solar
SFI
128
SN
73
A
6
K
1
Quiet
X-Ray
C2.2
Wind
403.6 km/s
Aurora
2
Updated 23:00 UTC
HamQSL · N0NBH
Day
80/40m Fair 30/20m Good 17/15m Good 12/10m Fair
Night
80/40m Good 30/20m Good 17/15m Good 12/10m Poor
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Robert Taylor
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