chinese firedrake jammer

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Jimepage

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Yea it seems I didnt hear firedrake in a year or more. Recently its in full swing! I receive it here on the east coast with a killer signal on 12230 @1300 and a little weaker sometimes on 16980. I cannot account for its strong signal here accept I think I read somewhere that its also broadcasts from satellites. Very interesting to say the least
 

Token

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The Firedrake is pretty much active all day every day with few quiet hours. I do not think a morning has gone by in the last several years that I have not stumbled on it. However, it changes frequency to match the stations it is jamming, so it often shifts frequency from hour to hour. It can have as many as 10 or so frequencies active at one time, I seldom see less than two at any one time.

Firedrake goes off the air at the top of each hour. It stays off for between 6 and 25 minutes. This “off” time is probably what is called “look through” in the jammer world, time to listen and make sure the signal you want to jam is on that frequency before you start or restart jamming. Typically Firedrake comes back on one frequency at a time, from low to high frequency, but often it brings up the lowest frequency last.

This “off” time has lead to some interesting activity by some of the typical Firedrake Jammed stations. They sometimes put their most important material, news, etc, in the first 15 minutes of transmission, trying to get it to the target audience before the jammer goes active. A few stations have started coming up for 15 minutes only and then shifting frequency.

Also, this means if you are looking for Firedrake you might just get a cup of coffee or look for other signals for the first 15 or 20 minutes of the hour. Since it is hard to tell exactly when it will come back up you might be wasting your time sweeping a band only to have it pop up in that band at 22 minutes after the hour. Typically I look for it 30 minutes after the hour or later if I am sweeping for it. If you have an SDR like the WinRadio Excalibur that can show you the entire HF spectrum at one time you can look on the waterfall for signals that come up at “odd” times. BC stations most commonly come up a few minutes before the top and bottom of the hour, a visual signal that comes up at say 17 minutes after the hour might be a good candidate to check for the Firedrake.

Propagation and high transmit power accounts for the good signal on the east coast or anyplace in the World. Changes in propagation accounts for the variations, sometimes strong sometimes not even on the same frequencies and times.

Look at the times and frequencies of the Firedrake receptions you get. Is it an all night time or all day time path from you to the east coast of China? Are either of you in the gray line? How would the frequency vs time and propagation work, for example if it is a high freq, like 16100, you would not expect that to work well at your local midnight, or 7970 kHz might not work well at your local 1300. Because the jammed stations are in the same region and aimed into China many times they are on frequencies/times that do not work well for reception in the US or Europe.

In the last few days, at various times, I have seen Firedrake on the following freqs; 7970, 9200, 10300, 10500, 10700, 11500, 12230, 12300, 12500, 12600, 12670, 13130, 13920, 14700, 14970, 16100, and 16270 kHz. In the last few months I would probably add another couple dozen freqs.


Jimepage, Firedrake is not broadcast from satellites, for that matter essentially no HF signals are with a very few low power exceptions. However, it does appear that the Firedrake signal is probably linked to the transmitter sites via satellite, this accounts for all signals being synchronized.

T!
 

PCJMedia

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Firedrake and other Chinese jammers will be increased until around the middle of February. Just as every year at this time there is a spike in jamming. The reason is simple. Every March the National People's Congress meet at the Great Hall Of The People in Beijing. Since every Communist Party of China rep will be in Beijing for the meeting, they always increase jamming. They have been doing this for years. it normally starts around November and December. It's silly to do, because none of them even know what shortwave is. But the jamming is so those living in the countryside where shortwave is still popular don't tune to Radio Free Asia, Voice Of America and BBC World Service to find out what is being and not being discussed at the meethings.
 

Token

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Firedrake and other Chinese jammers will be increased until around the middle of February. Just as every year at this time there is a spike in jamming. The reason is simple. Every March the National People's Congress meet at the Great Hall Of The People in Beijing. Since every Communist Party of China rep will be in Beijing for the meeting, they always increase jamming. They have been doing this for years. it normally starts around November and December. It's silly to do, because none of them even know what shortwave is. But the jamming is so those living in the countryside where shortwave is still popular don't tune to Radio Free Asia, Voice Of America and BBC World Service to find out what is being and not being discussed at the meethings.
You are saying that Firedrake will be transmitting on more than their normal 10 to 12 maximum frequencies at a time? Or are you saying they will be jamming more hours a day but the same number of frequencies?

T!
 

PCJMedia

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For the next few month Firedrake will either add more transmitters and more power and target frequencies they don't try to jam. It's also the time of year depending on propagation and where your located that you can hear some odd local stations on shortwave use to jam. The oddest one I ever heard was a few years ago. Shanghai Traffic Radio on shortwave. Yes a local traffic station on shortwave. It as on for 3 months and then just went off air as soon as it appeared. Another one was (translation) Shanghai Childrens Radio. So expect more frequencies and times. Mind you not all will be audible where you are.
 

Token

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For the next few month Firedrake will either add more transmitters and more power and target frequencies they don't try to jam. It's also the time of year depending on propagation and where your located that you can hear some odd local stations on shortwave use to jam. The oddest one I ever heard was a few years ago. Shanghai Traffic Radio on shortwave. Yes a local traffic station on shortwave. It as on for 3 months and then just went off air as soon as it appeared. Another one was (translation) Shanghai Childrens Radio. So expect more frequencies and times. Mind you not all will be audible where you are.
No, all might not be receivable here at my location, but most should be receivable via remote receivers located in Hong Kong, Japan, and Taiwan.

I will have to keep an eye on it, I have been logging Firedrake for a few years now off and on, but have never really noticed more than 10 or 12 frequencies, and the most I ever received was actually this past summer, with 12 frequencies at one time.

T!
 
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