Topics

1

Equipment / Fiberglass whip – short vertical antennas for MW broadcasting by Valcom?

« on: January 26, 2023, 1826 UTC »

https://labsdl.wordpress.com/2018/09/06/interesting-am-broadcast-antennas-part-1-wiry-and-wzbr/

I think that these were covered before, but they are intriguing. Hmmmmmmmmm... I wonder how were they'd work for the 160M band?

2

Huh? / Radio World Letter: AM Ain’t Done Yet! And then, Ford.

« on: January 25, 2023, 0743 UTC »

https://www.radioworld.com/columns-and-views/readers-forum/letter-am-aint-done-yet    Still, the amount of noise on the MW band just sucks.
And then, there's this:   https://www.radioworld.com/columns-and-views/guest-commentaries/did-am-radio-just-get-hit-by-lightning

3

Amateur Radio / Will SSB Radio Return To The US Naval Academy? HAM FREQ´s involved.

« on: January 12, 2023, 1835 UTC »

I´ve 1st seen this from SWL´ing, but a friend of mine FWR the direct link.   https://gcaptain.com/will-ssb-radio-return-to-the-us-naval-academy/

4

Part 15 AM and FM Station Operation / 49MHz Part 15 re-re-visited? Still usable, today.

« on: January 09, 2023, 1956 UTC »

Boomer FWR me this:   http://kdxradio.com/gallery_files/Brownwood_Bulletin_Fri__Nov_18__1977_hobbyist.pdf A 1978 article on 49MHz Part 15 band. And then, this VID: https://www.youtube.com/watch?v=sPf6_v21xds     WOW!!!! Does all this bring back memories of 49MHz stories of, walkie-talkies, cordless phones, and baby monitors. Certainly, made it worth having a scanner, with a good VHF Low antenna, in the 1980´s. (Hi-hi...) Still, this band could be great to use, now. Like this dude did:  http://www.fordyce.org/scanning/scanning_info/babymon.htm      Years ago, I´ve audio modified a Safety dual-channel 49MHz Baby Monitor, 49.850MHz and 49.870MHz, NBFM. I went a step further by adding a POT for audio adjustment and an extra resistor, in series. (Like 10k-Ohm, or higher.) And??? As a bonus, this Baby Monitor´s transmitter came with a built-in audio ALC unit that was really effective. Audio wise??? A little better than telephone-like, really. Then again, if you are going to use scanner radios to receive this, hi-fi audio quality isn´t a concern.

5

Amateur Radio / January VHF / UHF Sweepsteaks, then Winter Field Day 2023!

« on: January 08, 2023, 1906 UTC »

Uh-huh... Tis that time for this one:  http://www.arrl.org/january-vhf    Lack of foliage helps out on 2M, on up, to get out. And, maybe 6M F2 this year. Then, the following week:   https://www.winterfieldday.com/    Now, the question is whether those Southern T-storms will settle down by then, and not rip-up the lower HF bands with crashes at night. And then, AM Rally:   http://www.amrally.com/

6

10/11 meters / Rare, late night 11M Sporadic ¨E¨ pipeline from Texas!

« on: December 30, 2022, 2058 UTC »

Wow!!! 27MHz CB was hoping, especially CH38LSB, from midnight to 2:30AM, (0500UTC - 0730UTC, 12/30/2022), with a direct pipeline to Texas. On 10M??? Just a beacon, or two, but no operating stations. All, on 11M. So, was 6M open last night?

7

Huh? / HAARP to bounce signal off asteroid in NASA experiment? More INFO.

« on: December 24, 2022, 1903 UTC »

https://www.gi.alaska.edu/news/haarp-bounce-signal-asteroid-nasa-experiment    I say, let HAM´s do it. Then, we can get credit for ultra rare DX. (Hi-hi...) At least, this helps them to focus upon not burning holes in the atmosphere, or trying to change the weather, so they can have at it. Huh... Looks like we need to bug them for what frequencies they are going to use.

UPDATE:    Ah... Hereś more details on date and FREQ´s.   https://swling.com/blog/2022/12/haarp-to-ping-passing-asteroid-with-shortwave-signals/

8

Amateur Radio / 10 Meter Beacon DXing? See if you can hear what this dude has.

« on: December 23, 2022, 2002 UTC »

If Auroras don´t kill 10M propagation, maybe we can hear what this dude did.  https://swling.com/blog/2022/12/guest-post-10-meter-beacon-dxing/

9

The RF Workbench / Simple and better circuit for MiniWhip antennas?

« on: December 20, 2022, 1812 UTC »

Boomer FWR this to me. Looks easy enough, and if I was stuck as an apartment dweller, I´d build and try it. http://www.pa3fwm.nl/projects/miniwhip/

10

Amateur Radio / 12M AM? Sure!!! Why not?

« on: December 17, 2022, 1841 UTC »

Got home late last night to hear Timtron, WA1HLR, QSO with big-gun Don, K4KYV, on not having time to do AM on the higher bands in the daytime. Then, he mentioned that whenever he finally does, he wants to get some 12M, a.k.a. 24.9MHz, AM activity going. Well, sure... Why not??? That´s a very under utilized WARC Band, yet shares F2 and Sporadic ¨E¨ propagation like 11M, 10M, and 6M. And, you have this benefit of a tax funded PORP beacon, WWV on 25.000000MHz. If you heard that, then you know that 12M is open. Anyway, the FREQ that Timtron is trying is 24.975MHz for AM. So, when F2 dies-out in the evening, then Winter Sporadic ¨E¨ may open that band up to ´short-skip´. Passing thoughts, there. https://rsgb.org/main/operating/band-plans/hf/24mhz/
Oh yeah... Don´t forget, that you can check out 12M propagation by tuning in WWV on 25.0000MHz. Today, 12/19/2022, 17:15UTC, that was banging-in at S10/9 on my W.O.G.! (COOL!!!)

11

Equipment / SWL´ing TEF6686 chip radio? Neat!!!!

« on: December 15, 2022, 2047 UTC »

https://swling.com/blog/2022/12/ivan-checks-out-the-new-tef6686-chip-radio/    Looks like a kit, but I like that display.

12

Amateur Radio / Santa Nets are back for 2022!

« on: December 12, 2022, 1831 UTC »

Came home last night to hear them wind down the list of 20 stations that had kids that wanted to do the Santa talk. FREQ = 3916kHz LSB, and the site to do the net and request your kids to be on this is:  https://www.cqsanta.com/   This year, they are also doing one-way ´Shout-Outs´ for just RX´ing SWL´ers and are using the neat tool of other folks´ Kiwi-SDR´s, which they had to do list night when 75M made it so one of the requested kid´s station couldn´t be heard by the ´Signed-In´ net stations, even with seven net stations in AL, FL, TX, NY, and MI. Still, they made it happen. This seems to be more of an East Coast / Mid-West thing, since the one stations for the West Coast had problems. So, if you want to try a unique way to combine radio fun, Christmas, and Amateur Radio coordination, on this annual net, check out 3916LSB and that CQ Santa site. 

13

Part 15 AM and FM Station Operation / Part 15 X-mas station, near me, is back!

« on: December 09, 2022, 1914 UTC »

Tis the season, for Part 15 FM X-mas stations. And, that dude, about a mile from me, is back with the wholly-kow decked-out yard X-mas display, is back on 101.3FM. True Part 15, with it MAX´ing-out at maybe 400ft away with my good truck stereo receiver. Good audio and levels, and no distortion, so he knows what he´s doing. And, ya know that he´s not the only one out there doing that. So, watch for, and tune-in, to these annual holiday stations, while you can.

14

Software / Audio Test Generator: Level Meter with Digital readout combined with a Sine Wave

« on: December 07, 2022, 1908 UTC »

 I haven´t tried this, yet, but looks like it could be indeed a very useful audio tool to download and use.    https://www.darkwooddesigns.co.uk/pc2/testgen.html

15

Amateur Radio / The bad-use for an on-line Kiwi-SDR to HAM´s? Oh yeah.

« on: November 28, 2022, 1931 UTC »

Just last night, I was listening, before bed time, on 3892kHz LSB. Some douche was continuously messing with that group, keyed-up. What was crazy was that in seconds the usual 3892 group made comments about this douche, that douche was commenting about what they were saying back, while the douche was still TX´ing. The 3892-group figured out that this douche was using an on-line Kiwi-SDR to listen, while keying-up and harassing! (Uh, great...) Yeah... What a use for on-line Kiwi-SDR´s, huh? Make it a full-duplex TX/RX harassment device.