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 - Token

Pages: [1] 2 3 ... 121
1
Spy Numbers / Re: V24 Logs, March, 2019
« on: March 14, 2019, 1203 UTC »
And again V24 transmits in the 1600z time slot on 5115 kHz.  So far half the month gone and only 2 transmissions, both at 1600z and on 5115 kHz.

5115   13-03-2019   1600z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California.

T!

2
Spy Numbers / Re: V24 Logs, March, 2019
« on: March 11, 2019, 2339 UTC »
Finally had a V24 transmission this month.  One of the 1600z time slots on 5115 kHz.  Last month only the 5900 kHz slots were active at 1600z, and none of the 5115 kHz slots.  This month the first active transmission was a 5115 kHz TX.

5115   11-03-2019   1600z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California.

T!

3
Spy Numbers / Re: V24 Logs, March, 2019
« on: March 09, 2019, 1553 UTC »
So far this month (as of March 09, 2019) I have heard no V24 transmissions at all.  They have done this before, but that makes up to 9 missed transmissions and the month is not 1/3 over.

T!

4
Shortwave Pirate / UNID 6950 USB 0255 UTC 09 March 2019
« on: March 09, 2019, 0258 UTC »
So far UNIDed on 6950 kHz, USB.  Heard first before 0255 UTC< but not sure when it first came up through the noise.

Native American sounding pipe music.

T!

5
Shortwave Pirate / Re: UNID 6960 USB 0205 UTC 09 March 2019
« on: March 09, 2019, 0241 UTC »
Off at 0238 UTC.

T!

6
Shortwave Pirate / UNID 6960 USB 0205 UTC 09 March 2019
« on: March 09, 2019, 0213 UTC »
So far unided station on 6960 kHz USB.  Wide audio, looks to be over 12 kHz wide.

0211 UTC Boogie Nights.

T!

7
Shortwave Pirate / Skippy Radio 6925 USB 0130 UTC 3 March 2019
« on: March 03, 2019, 0135 UTC »
So far unided station, 6925 kHz USB.  S7 or a bit better into the Mojave Desert of California.   Blues thus far.

A visitor from the past ....  "His words were true, we were not free, we have ourselves to blame"

T!

8
HF Mystery Signals / MOVED: 6974.4 CW
« on: March 02, 2019, 1627 UTC »

9
Spy Numbers / V24 Logs, March, 2019
« on: March 01, 2019, 1517 UTC »
All,

Starting a thread for V24 logs for the month of March, 2019.

My last chart is here  http://www.tokenradio.net/Radio/SharedFiles/NumbersTfer/V24_M94_latest_sched.JPG however keep in mind that is based on information ending in December.

T!


10
Spy Numbers / Re: V24 logs, February 2019
« on: March 01, 2019, 1515 UTC »
It seems people reported most of the V24 slots that transmitted this month, however somehow the reactivated 5150 Khz slot slipped by.  Below is the V24 Activity as received here at my location in the Mojave Desert, for the month of February, 2019

5290   03-02-2019   1430z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair to strong here in the Mojave Desert of California with light Chinese OTHR QRM.

5290   05-02-2019   1430z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair to strong here in the Mojave Desert of California with light Chinese OTHR QRM.

5290   07-02-2019   1430z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair to strong here in the Mojave Desert of California with light Chinese OTHR QRM.

5900   15-02-2019   1600z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California.

5150   18-02-2019   1400z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, strong here in the Mojave Desert of California with light Chinese OTHR QRM.

5900   18-02-2019   1600z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California.

5150   21-02-2019   1400z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, strong here in the Mojave Desert of California with light Chinese OTHR QRM.

5900   22-02-2019   1600z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California.

4900   23-02-2019   1530z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, fair here in the Mojave Desert of California with heavy co channel interference from broadcast station.

5150   25-02-2019   1400z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, strong here in the Mojave Desert of California with light Chinese OTHR QRM.

4900   25-02-2019   1530z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, strong here in the Mojave Desert of California with heavy co channel interference from broadcast station.

4900   27-02-2019   1530z   V24   AM
South Korean numbers station V24, YL, KK, K-pop intro music, strong here in the Mojave Desert of California with heavy co channel interference from broadcast station.

The only remaining time slot that does not use K-pop intro music is the infrequent 4925 kHz, 1430z, slot, which uses Classical.

I think this single thread for a station per month works well for keeping track of activity in an easy to find place.  Yes, if the forum was faster paced, more traffic, it might fall off the front page too fast, but for now it works pretty well.  I will go ahead and start a March, 2019, thread.

T!

11
HF Mystery Signals / Re: Unknown digital signal
« on: February 20, 2019, 0323 UTC »
Go with your gut.  That is indeed PACTOR IV.  The sweeping tone is called a 2 tone chirp, and is part of the P IV.

T!

12
General Radio Discussion / Re: What Happened to #wunclub?
« on: February 17, 2019, 1411 UTC »
#wunclub can be found on the Freenode IRC server.

And yes, the HFU Rocket chat is also active (link above, upper right corner, alternate link here  https://www.hfunderground.com:8443/channel/general )

T!

13
Spy Numbers / Re: E06/E11/E17 schedule?
« on: February 16, 2019, 0026 UTC »
I haven't found much posting in relation to E06, E11 or E17. Does anyone copy these on a regular basis? Also im in the Southeastern U.S if that is a factor. Looking for any Voice Numbers broadcast. I know they are not very common. Any comments are welcome. Thanks

The South East US is one of the worst locations to hear voice numbers stations, or numbers stations of any kind that are not Cuban.  You typically can't get the Asian stations that are heard on the west coast, and you typically can't get the European stations as well as folks in the North East of the US.

T!

14
HF Mystery Signals / Re: Mystery ute on 6135 kHz
« on: February 14, 2019, 0054 UTC »
Yep, has the tell-tale Link-11 sound.  When's the switch to Link-22 going to happen?   :D

Since most Link-22 hardware I have heard of is back compatible to Link-11 it might have already happened, and we just don't realize it yet.  I have no doubt that an all Link-22 network will sound different than Link-11, it is a completely different format, but for all we know we have been hearing Link-22 in a back compatible mode for a while now. Link 22 was defined back around 1990, and has been "in development" since about 1992.  I suspect there are a lot of Link 22 capable platforms (hardware installed) out there already.

T!

15
Equipment / Re: Full wave dipole
« on: February 12, 2019, 1528 UTC »
Is this for a receive application?  Or is it transceive? 

I have played with longer dipoles, full wave and longer than that.  In general, I see little reason to go with a full wave dipole over other types of antennas.  Particularly so if you are going to feed it with coax.

A half wave dipole exhibits a slight null off each end, but a broad beam perpendicular to the element.  The classic broad toroid (doughnut shaped) radiation pattern.  Pretty predictable and easy to visualize while setting the antenna up.  The full wave dipole, or two half waves, has a couple dB gain over the half wave dipole, but at a cost.

There ainít no such thing as a free lunch, so that slight gain has to come from a changed pattern shape.  What I have found is that the full wave dipoles I have built exhibit a bit of a null perpendicular to the element, and a bit more gain at an angle.  Think of it as a roughly butterfly shaped pattern, a null at each end and a slight null on the broadside.

I have found it harder, compared to other wire antennas, to place full wave dipoles in orientations that take advantage of the pattern shape.  For example, a terminated long wire (a beverage) of the same length works, roughly, in a cone towards the terminated end, and I have found it easier to place them, for example allowing one lobe to point towards the polar path, while the other is towards Africa, or something like that.

And then there is the operational bandwidth.  In my experience dipoles fed with coax (and with or without a balun) tend to be narrower banded than the same lengths end fed with coax and a balun.  But, a full wave dipole fed with ladder is more forgiving.

I guess the question comes down to what do you hope to gain with the full wave dipole, vs a half wave dipole, that cannot be done with an end fed full wave?

If you are looking for a little gain, what direction / directions are you looking for gain?  If you are looking for gain in specific directions, have you considered a V-beam or something like that?

T!

Pages: [1] 2 3 ... 121