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.

Topics - Josh

Pages: [1] 2 3 ... 6
Shortwave Broadcast / 6870 AM 2324Z 15JAN19
« on: January 15, 2019, 2328 UTC »
SOH Xi Wang Zhi Sheng
Chinese/Cantonese, om and yl in discussion. S5, deep fades with frying noise likely from a nearby street light.   

Utility / 9031 USB 2217Z 15JAN19
« on: January 15, 2019, 2229 UTC »
This freq and 8031 have been active with PALM LEAF and CRITERIA trying to pass ANDVT digital voice and 3FSK data for the last few hours, PALM LEAF seems to be having a lot of trouble with their crypto gear. Both of these stations are suspected NCA/NEACP/Glass flights. CRITERIA requests PALM LEAF "change setting from Mark High to Mark Low" - this is changing the fsk tones from high to low tones. Still having issue @ 2228Z.


Utility / 11232 USB 2144Z 08JAN19
« on: January 08, 2019, 2149 UTC »
REBEL 38 calls Trenton Military (not heard) and requests a selcal check on FMEL. Someone tunes up on freq with a zero beat s9 carrier (50uv) and is still sending carrier while REBEL 38 is calling Trenton Military "REBEL 38 airborne at 2120Z and estimating Winnipeg at 2310Z, out".

@ 2200Z ATLAS 341 informs Trenton Military they are enroute Winnipeg, asking for current traffic.

Shortwave Broadcast / 5950KHz WRNO AM 0029Z 08JAN19
« on: January 08, 2019, 0031 UTC »
WRNO with get off of my cloud and sugar pie honey bunch oldies. Fady S9 and lower.

And Radio Nacional Brasilia, 10 over S9, with music and commentary in Portu-geese on 6180 @ 0049Z 08JAN19

Utility / WWV
« on: January 05, 2019, 2338 UTC »
WWV is coming in on 2.5, 5, 10, 15, and 20MHz @ 2337Z 05JAN19, no trace of 25Mhz sadly. Noticed my rig was off a few hz so used wwv to clear that up and checked each wwv freq.

Equipment / Improving scanner performance.
« on: January 04, 2019, 2351 UTC »
Without climbing onto the roof.

I recently installed a fm trap as well as a 50MHz high pass filter to the scanner, and didn't think much of it at first, as in no night and day difference in received sigs. This is with a BC9000XLT, and old analog scanner that covers mil air and the usual bands. Has a tuning knob, kinda neat.

Both the fm trap and high pass filters were old radio shack items I had laying around, rounded up enough "dapters" and coax bits to install them in the line.

What the fm trap does is greatly attenuate the fmbc band energy while passing the bands above and below the fmbc band unhindered. It's a tiny lump sum affair, with coils and caps inside a metal case, f connectors in and out, no moving parts. If you live in or near a large metro area or close to a fmbc tower, you are being illuminated with megawatts of fm and likely tv power. This will affect your scanner, likely desensing it at least to a degree and placing gobs of rf on every conductor in your domicile.

Another way to picture this is say you are the scanner, listening to every channel programmed into you, but there's several rock, country, and rap groups nearby, all with their amps at 11, and they never stop and you can't ignore them. The fm trap makes them stfu.

The 50MHz highpass filter is a bullet style inline affair with a f connector at one end and a length of rg6 coax out the other. What this does is excise every signal below 50MHz, keeping swbc and ambc powerhouses from saturating the scanner's delicate inners. This is ossum if you live near ambc or swbc transmitter sites and in such cases will likely make a noticeable difference in performance. It should also keep your hf or cb rig transmit power out of the scanner, potentially increasing the lifespan of the rf front end inners. A 50MHz highpass filter isn't likely to do as much for a scanner as a fm trap will, so you know. That being said, scanners typically have at least some highpass filtering built in.

So the proof in the pudding is I started to receive nearbyish HAM repeaters never noted before, at first I thought it was mere coincidence/skip, but no, there's a definite improvement in rx in my case. I also noted a much stronger/longer pass to HAM satellites as well as the usual Russian Cosmos birds, oddly enough.

These filters can be home built affairs, but it's a lot easier to buy them. Radio shack doesn't exist anymore that I know of, and their stuff wasn't that well designed or executed compared to other filters made today anyway. If you wanna role your own, just google filter design and get crazy.

So, if you have any of this stuff laying around, install it and see if it lets you hear a fly scratching his back on Nibi Nibi Island, or that new lunar lander the Chinese placed on the far side of the moon!

Anyway here's some links to places to get these thingys;
(my fm trap looks like the cheap one depicted in the above link)

For the highpass filter, ebay and the like are abounding with them and cheap, typically with 45MHz and up pass, just fine for our porpoises here.

Peskies / 6990 LSB 2249Z 01JAN19
« on: January 01, 2019, 2251 UTC »
Koto kishida shinata kinata shoto etc Japanese phraseology, s4/6.

This is coming in on Strange Beacons (WA) and Token's sdrs.

Utility / 4734 USB 0421Z 29DEC18
« on: December 29, 2018, 0425 UTC »
ORIGINAL calling BACK BENCH (think this was Andrews) with request to exit the net at this time.

BACK BENCH asks ORIGINAL to authenticate QLC

ORIGINAL authenticates QLC with T and requests BACK BENCH to authenticate AXL

BACK BENCH authenticates AXL with R, and out of the net at 0424Z.

Utility / 11088 USB Crazy wideband hf thing
« on: December 28, 2018, 2108 UTC »
11088(?) USB 2106Z 28DEC18
presumed ofdm/psk wideband high data rate modem, 30Khz wide, with cochannel J3C.

General Radio Discussion / Chinese HAARP
« on: December 22, 2018, 0101 UTC »
Just saw the following story and wondered if anyone has copied this?

"The High Frequency Active Auroral Research Program, or HAARP, was established in Gakona, Alaska, in the 1990s with funding from the US military and the Defence Advanced Research Projects Agency.

The HAARP facility could generate a maximum 1 gigawatt of power, nearly four times that of Sura.

China is now building an even larger and more advanced facility in Sanya, Hainan, with capability to manipulate the ionosphere over the entire South China Sea, according to an earlier report by the South China Morning Post."

Peskies / 6400 LSB Spanish male and female
« on: December 21, 2018, 2237 UTC »
6400 USB 2235Z 21DEC18 Spanish male and female cochannel with North Korea, how dare they interfere with glorious DPRK broadcasts!

Death to the imperialists and all their running dogs!


Utility / 11175 USB
« on: December 20, 2018, 1843 UTC »
11175 USB 1803Z 20DEC18

HOLD FAST in phone patch to SHEEP MAN via station DOWN DEEP for mux setup,

HOLD FAST wants to use a series of GEP's including stations STRINGENT and DEPENDENT, ending at station BEAT BACK, with RF16 and RF1 as the mux channels.

SHEEP MAN replies RF1 is reserved so will use RF12 and RF16.

HOLD FAST says wants to use 16 for the analog side, 12 for the digital.

The following is random chatter from HOLD FAST, might be mistakenly keying mic as only one side of convo heard;
"Go for HOLD FAST"
"Mission number 12085 tack 18"

I'm still waiting for them to show up on uhf mux and/or enter the net via hf.

Peskies / 6900 pescadores mas finas
« on: December 19, 2018, 2207 UTC »
Peskies in lsb at 2206Z, was tuned to 6900 as the spectrum display is 100kc each side of tuned freq, and here some pescadores show up to entertain me.. Some also on 6890.

Utility / 9031 USB 1953Z 17DEC18
« on: December 17, 2018, 2006 UTC »
Followed NAOC/TACAMO and ground sta here from triple one after one mentioned trying the CHARLIE ECHO window (9031) due to poor conditions. Using dual watch on the pro 2 to cover both freqs simultaneously, didn't think the front end bandpass would stretch that far but it works. Need to map out the bandpasses for sure.

POST STAMP calling TANK CAR on triple one after no joy on CHARLIE ECHO @ 1957Z.

OFF POST calling TANK CAR for hf digital check, TANK CAR says hf digital not working at this time, stand by.

TANK CAR telling PORTABLE he will receive data, PORTABLE replies stand by for transmission. Digital mode is three(?) tone fsk.

Shortwave Broadcast / BBC 6005 World Service in English
« on: December 15, 2018, 0621 UTC »
BBC 6005 World Service in English 0618Z 15DEC18
S7/8, decent sig but qrm from nearby Habana. Manual notch and pbt engaged. Story on Aussies recognising Jerusalem as capitol of Israel. Ascension Island tx site according to BBC pdf;

Pages: [1] 2 3 ... 6