We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Josh

Pages: 1 ... 42 43 44 45 46 47 48 49 [50] 51 52 53 54 55 56 57 58 ... 288
736
There's traffic in usb and lsb on 6900 right now.

737
Utility / Re: CIS Navy on HF
« on: December 22, 2019, 2232 UTC »
Some who follow the RU Navy on hf say there is no distinct and absolute transition from day to night freqs as I've noted for 0600/1800, that stas will use whatever frequencies are propagating.
That stands to reason, however I note a distinct lack of traffic on 8mHz after about 0700 and 12mHz after 1900, so they do qsy near those times as far as I'm concerned.

What must always be kept in mind is what stas the ships are trying to contact, thus if those stas are in daylight or not, and weather there's a need and/or possibility for long haul (higher freq) or nvis (lower freq) hf comms.
Apparently in an effort to enhance signals security, much cw traffic has been moved from long haul to more nvis and localised networks, as well as satcom. Meaning instead of 12464, 8345, and other ranges noted for reliable long distance propagation, they're all down in the 3 and 4mHz range.
This effort to enhance signals security is problematic for us eavesdroppers located far away from the ships and their respective shore stas.

Earlier today (too lazy to get out from under warm covers to see what time it was and convert that to utc or moscow time) on 8mHz, RMUW was calling RIT, RCV, and RIW in turn and not getting any response for all I can tell, as RMUW had traffic to pass but apparently no shore station heard him so no groups were sent on 8mHz. They might have had success on another freq but I didn't copy any.




This series of reality show (ie scripted) vids has some really neat hardware as well as underway operations of interest to anyone who follows RU Navy;
https://www.youtube.com/watch?v=XhCGtc4kWDQ

738
Huh? / Re: Deep State Alert
« on: December 21, 2019, 1639 UTC »
Bill Hicks is so far into his Alex Jones character he's even starting to look like Carol O'Connor/Archie Bunker.

739
General Radio Discussion / Re: Calibrated receive frequency
« on: December 21, 2019, 1637 UTC »
Once I went the SDR route, I gave up on using radio with knobs. Barbaric  :)

Knobs aren’t the issue.  Isn’t it really giving up on the use of radios without spectral displays?  Listening on a conventional radio feels like driving with blinders on.   I gotta know what is going on around me.

I had a heck of a time going from a 756 Pro (has fishfinder) to a 746 Pro (does not has fishfinder). Never want to go through those kind of withdrawls again.

740
General Radio Discussion / Re: WQFG689 antenna
« on: December 21, 2019, 1633 UTC »
LOL! ! ! !

741
SDR - Software Defined Radio / Re: SDR question
« on: December 21, 2019, 1632 UTC »
The kiwis do that, other sdr control apps seem to favor csv files.

example;
https://www.youtube.com/watch?v=eRUQevH9czU

742
Utility / Re: CIS Navy on HF
« on: December 21, 2019, 1628 UTC »
8345 kHz

12/21/2019

0546z through 0652z, intermittently.

no decoder running



No copy here due local rfi source on 8345 at that time, but keep up the good work, you'll be decoding in no time!

743
Utility / Re: CIS Navy on HF
« on: December 21, 2019, 1624 UTC »
Here's a wav recording of this morning's proceedings;
https://www.filemail.com/d/ugvoyeksutfilgp

The 1400Z take was right at greyline and very weak, the 1500Z take was better, however you can tell when they switched ops or the same op reduced speed, they had a few repeat sessions and that may be why they reduced speed.
 Think I got the entire session, but had to be fast on the pause button to reduce file size so some characters at the beginning of each sentence may be missing.

There was random othr as well as other noises present but the band for the most part was quiet. Rig was a Xiegu G90 at 100Hz filter, antennae an ocdf, recording done by WCODE.
Conditions were -127dBm noise floor with up to -110dBm signal levels.

Still listening to 12464 @ 1615Z and an incredibly weak sig is just making it over the noise, so propa from there to here seems done for the day on this band.

744
jba @ 2233

745
General Radio Discussion / Re: WQFG689 antenna
« on: December 20, 2019, 2230 UTC »
The stick at the ambc I worked at was set in a marsh in some of the most conductive ground in North America, and the daytime coverage with 1kw was amazing. If it hadn't been in the middle of the hood I'd have asked permission to hook my HAM rig to it when it shut down at sunset.

746
10/11 meters / Re: Swishing sound??
« on: December 20, 2019, 2226 UTC »
In the future, radio collectives will utilise remote rx sites located far from noise sources, with splendid antenna arrays, solar power/batteries, and a full time technician present.

However, this will do nothing for propagated noise sources.

747
blips up to S1, otherwise perfectly readable @ 2216

if i ever get another van gonna name it morrison

748
General Radio Discussion / Re: WQFG689 antenna
« on: December 20, 2019, 2208 UTC »
Sometimes the location supports a very good natural ground, while others may be fair to poor.

749
General Radio Discussion / Re: FT8
« on: December 20, 2019, 2205 UTC »
thread hijack!

I've yet to experience a mode where it was decoded and I couldn't still hear it clearly. I've heard from people I trust that they have had certain modes, like pactor iv, become inaudible but still print perfect copy, good psk sounds like noise anyway so a human might not be able to differentiate weak psk from noise but a machine can.

On a like note I think ROS mode, throb, or FM Hell take the first place in weak signal work on hf.

https://rosmodem.wordpress.com/
http://www.w1hkj.com/FldigiHelp-3.21/Modes/THROBdesc.htm
https://www.qsl.net/zl1bpu/HELL/PSK.htm

750
Huh? / Re: The man who made the “worst” video game in history
« on: December 20, 2019, 2140 UTC »
If only they had foreseen the need for participation ribbons.....

Pages: 1 ... 42 43 44 45 46 47 48 49 [50] 51 52 53 54 55 56 57 58 ... 288

Item image   Vintage Weston 2531 Panel Meter 1 mA movement 0 to 5 kV DC Scale

 $19.95