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Messages - Zoidberg

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241
Lex!

Hiya! Been swamped, literally -- apartment floods for two weeks. But drying out now. And making time to play radio again after a long hiatus... or I-hate-us, as Cheech once said of Chong.

242
Equipment / Re: Lex dealing with RFI and home misfortunes
« on: September 14, 2022, 0907 UTC »
Howdy, @Sealord @ChrisSmolinski and all. Long time, no me. Busy with life stuff since 2015.

'scuse the late reply. The week I dug the radios out of the closet in August this year, my apartment was flooded nine days out of two weeks, through the first week of September. Took that long for the landlord to finally hire a proper plumber, rather than trying to cheap out by having the maintenance guy try to fix it with a drain snake.

Seems to be fixed, for now, but I'll be cleaning up for the next month. The water was literally wall to wall in every room, up to an inch deep, seeping through the baseboards and out the exterior wall between the concrete foundation slab and brick mortar. Fortunately it was all relatively clean warm water, straight from the upstairs neighbor's shower, with the exception of one nasty day. Every morning. But it's infuriating that the landlord shrugged it off for two weeks before getting serious about fixing the problem. And jacked up my rent 43% earlier this year. I'm looking for another place now.

And my old wifi router quit working reliably at the same time. I was using my phone and data plan to post logs, but I wasn't spending much time browsing or checking for replies and messages. ATT sent me a free replacement modem, but it took me almost two weeks to find time to hook it up this week. And another couple of hours for ATT to set it up remotely. But it seems to be working now.

Anyway, I needed a break from cleanup chores, reruns on TV, and mostly needed to get out of the apartment. SWLing seemed like the perfect excuse to get outside. Again.

i understand what Lex is going through.. i have amateur growers, over the years, with cheap, unshielded growing ballasts..ruin my amateur hobby for years before the laws here, in this state, were modified..

good luck,  hoping you find a quieter location

My battles with RFI were almost legendary on the forum and chats a decade ago. Goes with the territory for almost everyone in urban and most suburban areas since the 1990s when the FCC gave up on trying to regulate RFI-spewing imported electronics. I've actually heard worse RFI on some online SDR and remote controlled older receivers, mostly located in big cities around the world. Kinda puts things in perspective.

Unless I move back to a rural area, I have no illusions about finding a low RFI environment. Back around 2008-2012 when I was playing radio almost every day, my solution was a variety of homebrewed passive loop antennas. They were ugly, cheap and some worked remarkably well. One was dubbed the Fugloop, because it looked like nothing but a hunk of old but good quality TV grade coaxial cable wound around a closet door. It was directional at the feed point so I could aim it by opening or closing the door. I still have the materials but had to disassemble the loop years ago to prep for a building inspection. Most landlords and inspectors tend not to understand DXing. And that particular loop was gawdawful ugly. But functional and quiet.

My best loop was an outdoor stealth loop, rigged to a nearby wooden fence. It nulled out the worst source of local RFI very effectively. It was dirt cheap, using magnet wire that was such small gauge it was practically invisible; a TV balun that should not have worked on the HF band at all, but did; and TV coax run along the ground adjacent to the apartment exterior wall, shoved into the crevice between the dirt and brick wall to sort of hide it. Worked great for a couple of years until a new maintenance crew discovered it and tore it down. Fortunately it was mostly found materials -- the coax was fished out of the dumpster; the TV balun had been in my junk bin for years; and I think I paid a dollar for the magnet wire.

I haven't decided whether to keep or sell my Palstar R30 receiver, but if I keep it I'll rig up another homebrewed passive loop. I tried the Palstar this week with a random wire antenna and an RF Systems EMF antenna I got from the legendary late, great Al Fansome about 12 years ago. Great portable antenna, but can't compete with the local RFI. That's why I've mostly saved that antenna for field trips, where it's easy to toss up a tree. The Palstar is a great, very basic, no-frills receiver, but like most AM receivers for MW and HF, it needs an antenna suited to the local challenges.

So mostly I'm using my portables. The classic Sony ICF-2010 was noted for the AM sync capabilities, but what I like most about it is the directional quality of the built in telescoping whip. I just aim the tip of the whip at the noisiest RFI source (usually parking lot and apartment lights). That usually orients the whip more or less horizontally, parallel with the ground, which tends to reduce RFI anyway. It reduces signal a bit as well, but it's more pleasant to listen with minimized RFI, so even faint signals from pirates are audible.

I've tried external antennas with the Sony ICF-2010, but mostly they just increase noise. And the mini phone jack isn't really suitable for most antenna feedlines using shielded cable. I might eventually rig up a portable passive loop with a thinner shielded feedline and mini phone plug, but ... probably not. It works fine as-is with the whip.

The cleverest homebrewed antenna trick I've tried was the Villard loop (http://www.tsf-radio.org/forum/im/145279k3mt_-_villard_anti-jamming_antenna.pdf). Here's a video demo of the Villard loop I recorded several years ago. https://www.youtube.com/watch?v=32Hy0RAnkBk

The video and notes below the video link to the instructions for making the loop. It's simple and cheap. All you need is stiff backing board like gatorfoam or poster board, aluminum foil, newspaper (or any large sheets of paper), and scotch tape. Google around for the Villard loop and you'll find a bunch of mentions and tips for making one.

The loop is basically just a crude capacitor that takes advantage of the capacitance effect that plagues most small portable radios. Usually that capacitance effect is a PITA for careful tuning and adjustment of whip antennas, because merely touching the radio, or even waving a hand near it or changing our body position, can affect the reception and static. But the Villard loop turns that into an asset it can use to null out the worst local static.

Unfortunately it doesn't work as well on my larger portables, which are better shielded and resistant to the capacitance effect. But it works very well with smaller portables.

My old Villard loop got torn up a few years ago, but I plan to make a larger one that will reach the 40m or so band. I suspect a Villard loop the size of a queen or king size bed could be used down to the 75-80m bands as well, although it was be unwieldy and difficult to store.

My old antenna design book had plans for a more sophisticated indoor loop, about the size of a box fan, that uses metal strips rather than delicate foil as the capacitance link, and a proper mechanical tuner to fine tune the rig. Depending on design and size those can be used down into the AM medium wave band. Basically the same effect, but a bit more involved in construction and materials cost.

243
Backyard with Sony ICF-2010 portable

14 Sept 22
6935 USB
0210z barely audible music, maybe gospel or chanting
0211z acoustic guitar slow song, not English language?
0214z more slow acoustic ballad, guitar, mandolin and harmonium or similar instrument, not English.
0217z Audio seems pretty good, decent bottom end. Signal improving slightly.
0218z Two Dogs Radio ID?
0225z OM op, little tribute to Ukraine tonight, Two Dog Radio. Off.

244
North American Shortwave Pirate / Re: WANK 6925 USB 0139 UTC 14 SEP 2022
« on: September 14, 2022, 0202 UTC »
Outside with Sony portable on the whip

14 Sept 22
6925 USB
0150z country song just barely audible, maybe lyrics about Dayton, Ohio?
0152z Norwegian Wood cover, not Beatles, more of a country/highland ballad version
0154z country song Remember the first time you/he met her... (suddenly stronger peaks and rapid fades)
0201z faded to barely audible. Other bands fairly weak tonight, although noise is lower than usual.

245
For Sale / Wanted / Barter / Re: Wanted: Your old 1980s/90s computers
« on: September 14, 2022, 0105 UTC »
Got some old 1980s/90s computers (Atari, Commodore, Apple, TRS-80, TI, etc.) gathering dust in the basement or attic that you're looking to get rid of? Please send me a PM before you take them to the trash/dump, my kids and I are into restoring them.

Any interest in the early 1980s Tandy Model 102 and peripherals? I'm clearing out my closets and found my old school laptop from years ago. I thought I'd already donated it years ago when I gave away my old compact Macs and second gen Macs.

Still works, although all data was cleared. Intact, in great shape, but missing the original slide-in cover for the RAM/ROM slots. The battery compartment is clean, no corrosion, and still has the slide. These things will run for many hours on four AA batteries, which only power a gray LCD, no built in illumination. I'm not sure I still have the wall wart adapter, but it's a standard device.

There's an Ultimate ROM II plugged into the ROM slot for extending features. This adds more advanced word processing, spreadsheet, database, etc., features than the basic Tandy Model 100/102 included. I used those at work quite a bit back in the 1990s. There's also a Lucid ROM for a spreadsheet program that was quite advanced by early 1990s standards, but I rarely used it.

Includes the acoustic coupler for the built in modem, portable disk drive version 2 for 3.5" discs, probably some cables, etc. Haven't checked to see whether the peripherals still work.

Free. I'm pretty sure it'll all fit in a USPS Priority Mail Flat Rate box.

The original spiral bound manual is still intact but musty from getting damp. It was in a different box with just magazines, so the dampness didn't affect the actual equipment. But if you or the kids have allergies or asthma, either wear a dust mask while browsing the manual, or read it outdoors. It irritates my asthma and allergies. There's probably a PDF version of the entire manual somewhere online.

Back in the 1980s-90s there was an entire online club and BBS devoted to the Kyocera-made Tandy Model 100, 102 and related laptops, including programming tutorials. I wrote a few BASIC programs, and transcribed some machine code programs back then, but never really learned to like it and gave up on coding decades ago.

At one time maybe 20 years ago I'd considered setting up the Model 100 or 102 as a remote device with a receiver or transmitter, but these little laptops emit way too much RFI, probably from the unshielded LCD. But for years some geo survey and monitoring teams used these for logging temblors, since the laptops could run for months with an extended battery pack, usually using D cells.

Anyway, clever little devices. But I haven't used it in about 15-20 years. It was great in its day, especially for traveling, and a reminder of the old days of efficient coding for minimalist computers in an era when RAM was outrageously expensive.

246
Trying the Palstar tonight with Fansome antenna, but local RFI mostly wiping out anything less than S9 signals.

12 Sept 22
6930 USB
0215z Sycko Radio ID just barely audible, music I can't quite copy.
0234z Sycko, we're gonna do one more, then get outta here. Still can't quite copy music enough to identify.
0235z ahh, Thin Lizzy "Cowboy Song"

247
11 Sept 2022
6969 LSB
0333z Lollipop
SSTV
Bowling alley sounds
Ball Smacker Radio ID, invited listeners to identify show theme, email for eQSL
Best signal yet since resuming pirate SWL recently.

248
11 Sept 2022
6820 AM
0035z Hendrix "Castles Made of Sand" just barely audible
0044z maybe Hey Joe, still barely audible
No ID audible here.
Outside with Sony portable.

249
QSLs Received / Re: Ball Smacker eQSL 10 Sep 2022
« on: September 10, 2022, 0429 UTC »
Same received about an hour after emailing reception report. I think this was my first eQSL in about 7 years. Been awhile since I'd done any SWLing. Just dug the Sony portable out of the closet a couple of weeks ago to check the condition of the box after a plumbing disaster, and decided to keep it handy.

250
10 Sept 22
6925 USB
UNID
0220z Metallica Enter Sandman, just strong enough to copy familiar song
0222z data burst?
0223z voice, barely audible

Via Sony ICF 2010 on the whip in RFI enriched backyard

251
10 Sept 22
6960 AM
Sitting in the backyard with the Sony ICF 2010.
For some reason my phone kicks up EMI on this freq with the Sony ICF 2010. Gotta turn off phone to hear signal on this freq with this phone.

0145z Mary Poppins "Spoonful of Sugar" just barely audible through fades and heavy local RFI
0149z partial ID, bowling pins sounds, something bowling (?) radio, 6960 AM somewhere in the northeast.
0150z Bow Wow Wow "I Want Candy" still just audible through noise and fades
0159z Incense Peppermints, still barely audible here
0202z bowling sounds and ID
0202z Green Eyed Lady
0207z Marcy Playground "Sex and Candy," signal a bit stronger now
0208z Ball smacker radio ID with proton mail address
0210z Echo & the Bunnymen "Lips Like Sugar"
0213z Big Rock Candy Mountain, not sure which version, acoustic
0216z Neil Young and Crazy Horse "Cinnamon Girl"
0226z Candyman Sammy Davis Jr, just barely audible
0228z Ball smacker radio ID, bowling alley sounds
0236z SSTV, no copy here
0238z Ball smacker radio ID and email
0239z intro to Michael Martin Murphey "Wildfire," then stopped or faded here
0240z carrier off

Good audio and bass, helps ID material through noise and fades

252
North American Shortwave Pirate / Re: Zeke 6925 USB 0034 UTC 9 SEP 2022
« on: September 09, 2022, 0253 UTC »
9 Sept 22
Outside with Sony portable
6925 USB
0049z op talking about death of UK Queen Elizabeth. Echoey audio, heavy local RFI. Fair signal.
0053z instrumental music again, maybe Pink Floyd-ish
0054z op talking about queen again
0102z chicken clucking techno music
0103z op "You want more chickens?"
0107z peanut butter jelly time
0129z op"We've been sampling psychedelic rock, or stoner rock"
0141z God Save the Queen. And off.

253
Utility / Re: UNID net 6981 USB 8 Sept 2022 0215 UTC
« on: September 08, 2022, 2301 UTC »
This is a Canadian Forces Affiliate Radio System (CFARS) frequency. CFARS is the Canadian version of US MARS. 5## in the call sign is in Canadian region 5.

http://www.cfarsoperations.ca/

https://en.wikipedia.org/wiki/Canadian_Forces_Affiliate_Radio_System

Thanks, I had a hunch it was a Canada net, due to the slight accent of the net control I could hear. Google didn't turn up anything, but Google is worse now than it was a decade ago at ferreting out obscure hits. Google's emphasis now is on sponsored hits and whatever serves their financial interests.

I thought it probably wasn't MARS because every MARS net I've heard years ago was strictly business, no chit-chat about the news, etc. But I wondered whether the UNID net's duties might have included assisting Canadian law enforcement with updated info gathered by amateur radio ops.

Anyway, interesting catch for me. I've only recently resumed SWLing after a long hiatus, and am surprised to hear anything in my neighborhood with just a portable.

254
Utility / UNID net 6981 USB 8 Sept 2022 0215 UTC
« on: September 08, 2022, 0528 UTC »
8 Sept 22 UTC
6981 USB
0215z
CIW517 call sign (?), was only clearly audible operator. Responses barely audible.
0229z data burst

Ham net. Talk about arrest of second suspect in Saskatchewan, presumably referring to Sanderson brothers, saying suspect died in custody.

Conduct of net was similar to MARS nets, which I haven't heard in years. Might account for the out of band, unlisted frequency, which MARS nets sometimes used years ago.

255
8 Sept 22
Backyard with the Sony ICF-2010 portable
6925 USB
0105z Steely Dan "Ricky"
0108z Stones "Street Fighting Man" fair signal, heavier local RFI than usual past few weeks
0111z Van Halen "Hot For Teacher"
0127z Elton John "I'm Still Standing", Steve Miller "Joker", signal improving
0132z Eagles "Take it Easy"
0134z ELO "Don't Bring Me Down"

Might have heard a WWWW ID in there

0138z CCR "Looking Out My Back Door"
0145z Grateful Dead, "Casey Jones"
0149z Black Sabbath "Paranoid"
0155z SSTV after instrumental song
0200z after a few minutes silence, Metallica "Nothing Else Matters"
0207z cover of Cranberries "Zombies"
If still WWWW signal fading here

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