Messages

3091

VHF/UHF Logs, including satellites and radiosondes / Re: UHF mil air

« on: May 22, 2018, 1545 UTC »

AAR ongoing on 291.900MHz 1514Z 22MAY18.
PEACH 88 and unid presumed HAPPY 61 tanker doing aar.There are two tankers and their partners in the track.

61; Back four
PEACH 88; Moving back.

61; Up four.
61; Forward four.
61; 61 disconnect!

61; 88 we're clear to do another 45 minutes.
PEACH 88; great thanks.


PEACH 88 resolves to PEACH/PEACHTREE OPS 116th/461st ACW CP GA ANG WARNER-ROBBINS GA
meaning the ac in question is likely a E-8 J-STARS .

61's 59-1444 tail number resolves to a KC-135R tanker, made in 1959.

3092

North American Shortwave Pirate / Re: YHWH 0303 7470 AM 21 May 2018

« on: May 22, 2018, 1502 UTC »

lol@weinering

3093

General Radio Discussion / Re: WX4NHC Saturday, May 26, from 1300 until 2100 UTC

« on: May 21, 2018, 1701 UTC »

"It's better than any pot smokin or beer drinkin you ever done"

3094

HF Mystery Signals / Re: UNID Mode 6443.3 kHz 2045 UTC 2 May 2018

« on: May 21, 2018, 1654 UTC »

Looked at it again and it's FM-Hell possibly, knew I'd heard something similar before. 122.5baud, 230Hz shift. Hell modes mess with automated mode classifiers (used when first looking at the signal) so it doubled the baud, but I knew I'd heard the pilot tone and burst before. No idea what the message is but here's a screencap of the output;
http://s000.tinyupload.com/index.php?file_id=00910469952425641313
The light and dark backgrounds are from me trying different offsets.


http://www.w1hkj.com/modes/feld.htm

3095

Utility / Re: 3.139MHz USB Japanese chat

« on: May 21, 2018, 1617 UTC »

Don't let signal strengths fool you. If propa is working out well for them they could be in home waters and 60 over at your location. In early ww2, the fcc rid was alerted to a strong Japanese signal from some army signal corps unit in California as saying there must be a spy on the mainland or a nearby warship for that strong of a signal, turned out to be the naval hq station in Tokyo.

The fcc rid built a listening post in Hawaii in the crater of a "extinct" volcano. Reason why is US gov officials wanted to know what the Japanese gov was telling its citizens in their home radio bcasts, so fcc rid laid out a beverage in that crater. Tokyo on mediumwave came in like a local at almost any time they wanted to tune in, that salt water from Tokyo bay to Hawaii makes for a great groundplane. They recorded the bcasts on wax cylinders and 78rpm records and then flew them on to Washington DC. And now you know!

3096

Shortwave Broadcast / Re: WWCR 13845Khz AM - 5-20-18 - 2020Z - buzzing noise

« on: May 21, 2018, 1607 UTC »

Wow that's nasty. Also, doubt if they notice much, I called in one time to let them know they were playing two different shows on the same freq and it took several minutes for them to bother to get up and fix the feed.

3097

General Radio Discussion / Re: WX4NHC Saturday, May 26, from 1300 until 2100 UTC

« on: May 20, 2018, 1707 UTC »

Might want to watch out fer the crawdads during your creek ablutions.

3098

Equipment / Re: Good CB radio?

« on: May 20, 2018, 1705 UTC »

Unless you want an "export" rig, I'd try for an older cobra 148 (or its siblings, the Washingtons and Grants and the rest of the off brands using the exact same board), speaks ssb and has very good performance overall. At that price range you may find a Uniden 2510, great rig but wider ssb filtering.

3099

General Radio Discussion / Re: WX4NHC Saturday, May 26, from 1300 until 2100 UTC

« on: May 19, 2018, 1736 UTC »

I can picture pigmeat running around the neighborhood naked in the hurricane rains as his repressed hillbilly upbringing breaks loose.

3100

General Radio Discussion / Re: A Tale of Two R390A's

« on: May 19, 2018, 1731 UTC »

Radio is a terrible addiction.

^^^^ Fixed that for ya.

T!

Indeed.

As I placed the tubes back in the if deck I also made sure to employ tube shields that had the beryllium finger stock thingy inside to transfer more heat. This is a pain since not every tube shield i run across in my stock of parts has the insert, making the shield a tube cooker rather than a tube shield. Some tubes, such as rf amps, mixers, and most of the if deck need shields so they don't rfi themselves, others are fine without them and will run almost as cool without a shield as with the best tube shields (known as ierc tube shields). So I'm closer to having an almost completely restored R390A/URR, but know eventually those ierc tube shields will have to be sought out, purchased, and installed. One addiction leads to another.

A word to the wise; if your tube shields (supposing you have tube gear, perhaps not even radio related) aren't of the ierc variety where an insert or the shield itself doesn't make physical contact with the tube wall, you can expect very short tube life as the shields concentrate the heat and reflect it back into the tube. The only thing better than a naked tube is a tube with a ierc shield, far as tube life goes.

Here's some data on the oh so very important tube shields;
https://pearl-hifi.com/03_Prod_Serv/Coolers/PEARL_Tube_Coolers.pdf

Here's what they look like;
https://tubeworldexpress.com/collections/tube-shields/shields
http://www.surplussales.com/Tubes-Sock-Acc/TubeShields-1.html
(I'm not affiliated in any way with the above businesses)

I think I'll try some blueing or at least a freaking black sharpie on the non - ierc tube shields I do have and use the infra red thermometer on them for some before and fater testing.

Also, if you do run older tube gear, most of them were designed for 115v ac mains and you can upset them a bit by feeding them straight house current wich today is around 125v in some places. A bucking transformer or variac can be used to reduce the line voltage to what the gear was designed to see, increasing rube life and probably extending the life of the transformer.

3101

Shortwave Broadcast / Re: DPRK 11710 KHz

« on: May 19, 2018, 1705 UTC »

I don't think the fbi would bother you over a request for a qsl card, but it will get more data added to your "file".

Also, I expect anything from that part of the world to respond best with a vertical or other low angle of radiation antenna, so perhaps a horizontal dipole or horizontal loop isn't the best for long path work. You know, if you're using that kinda dipole or loop.

3102

North American Shortwave Pirate / Re: YHWH 7470 AM 0309 UTC 18 MAY 2018

« on: May 19, 2018, 1656 UTC »

Lol, may the deity of propagations be with him.

3103

Huh? / Re: Carlisles's Manatee finances it's own research!

« on: May 18, 2018, 1618 UTC »

http://queasyfish.blogspot.com/2011/02/blog-post_02.html

3104

General Radio Discussion / Re: SHORTWAVE TRADING | PART I | THE WEST CHICAGO TOWER MYSTERY

« on: May 18, 2018, 1609 UTC »

Also, most of the mil waveforms are known to radio hobbyists who follow such.

3105

North American Shortwave Pirate / Re: YHWH 7470 AM 0309 UTC 18 MAY 2018

« on: May 18, 2018, 1537 UTC »

I can't see them being kinder to him this time around he gets popped. Also, who does he suppose his audience is? Is he targeting pirate radio enthusiasts? No one else, relatively speaking, can hear him.