6.754khz? Airport?

[Shortwavewave]

ITS USB, Can anyone hear this everyonce in a while this comes in strong
Is it an airport? I think it is from Canada?

 

[ka3jjz]

This is one of many aero off route freqs, and yes, CANFORCES has been known to use it - not airports per se; there are many different uses of these off routes, and it's not easy to generalize what you will hear here. Generally it's aircraft in transit, making check ins and so forth

A good starting point to check for these kinds of stations is:

http://www.monitoringtimes.com/html/mttopHF.html

73s Mike

 

[jimlawrence]

Isn't this Edmonton at H+20 and Trenton at H+30 with aviation weather for Canadian military fields?

 

[mbird97x]

kHz?. That seems awful low in frequency.

 

[kny2xb]

According to the DoD Flight Information Handbook, this is a frequency for:

VOLMET VOICE WEATHER BROADCASTS

"Meteorological information for aircraft in flight may be obtained through routine and special VHF and HF weather broadcasts. VHF broadcasts are normally continuous and contain current airport weather reports, with trend parts where available, and occasionally SIGMET information. HF broadcasts are normally scheduled at regular intervals and contain current airport reports, with trend parts where available, and airport forecasts."

EDMONTON MILITARY
6753 (KHz)
2300-1200Z EVEN HRS+20
A = ACTUAL WEATHER REPORT
AIRPORTS SERVICED = NAMAO, VANCOUVER, WINNIPEG, COMOX

Greg
Clearwater / Dunedin, FL

 

[mtindor]

kHz?. That seems awful low in frequency.

You're right. He meant either 6754 khz or 6.754 Mhz. At any rate, the rest of the fellows have indicated what can be found there and where to find out more info.

Mike

 

[nexus]

kHz?. That seems awful low in frequency.

It can me read as either Kilohertz or megahertz depending on where you place
the decimal point in the frequency. So he made a mistake in placing the decimal point and calling it khz.

6754.0 would be classified as kHz

6.754.0 would be classified as mHz

Its just below the 40 meter amateur band, and it's not that low in freq. It's almost the middle of the HF band. And there are several commerical aircraft there maintaining trans-continental comms.

 

[Shortwavewave]

Im sorry i was in a hurry it would be nice if my reciever went down that low to 6khz lol

 

[CSL126]

I'm listening to this frequency right now, I'm hearing some sort of data transmission with a VOLMET in the background.

 

[ka3jjz]

I'd have to hear the data transmission to be sure, but my bet would be either HFDL or ALE is what you are hearing. There are free software packages to decode both of these modes.

73s Mike

 

[CSL126]

I'd have to hear the data transmission to be sure, but my bet would be either HFDL or ALE is what you are hearing. There are free software packages to decode both of these modes.

73s Mike

I've tried several of these decoders, which one do you recommend? Also, I'm familiar with ALE, but I've never heard of HFDL... thanks!

 

[ka3jjz]

Unfortunately our recent upgrade to the Wiki software really hosed the HFDL page up bad, so in brief...it's actually a misnomer - HFDL (HF Datalink) usually refers to a class of signals that links up 2 - sometimes more - stations in a duplex data link with full handshaking (Link11 and Link16 are 2 such HFDL modes that can at times be heard on HF; no they are not decodeable with hobby level software....). The term was appropriated to describe HF ACARS, to which one protocol - referred to often as the ARINC 635-3 protocol - is somewhat similar. It can be copied with several software packages, including SkySweeper, but there's a commercial (and a freeware version at the very bottom) version of this program which is very inexpensive. I know a fair number of people who got started on this side of the hobby using the freeware decoder. The page is here The author is the same one who has written (and contributed to) the various versions of PC-ALE.

73s Mike

 

[Napalm]

It can me read as either Kilohertz or megahertz depending on where you place
the decimal point in the frequency. So he made a mistake in placing the decimal point and calling it khz.

6754.0 would be classified as kHz

6.754.0 would be classified as mHz

Its just below the 40 meter amateur band, and it's not that low in freq. It's almost the middle of the HF band. And there are several commerical aircraft there maintaining trans-continental comms.

millihz sure is low in frequency

kHz and MHz