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 permissible in your locale.

Author Topic: CHU Moving to 7850 kHz  (Read 3372 times)

Fansome

  • Guest
CHU Moving to 7850 kHz
« on: December 25, 2008, 0835 UTC »
From the UDXF mailing list:

From CQ Magazine   
 
CHU Moving to 7850 kHz
 
After seventy years of broadcasting Canada's official time, radio
station CHU will move from  7335 KHz to 7850 KHz. The change goes
into effect on 01 January 2009 at 00:00 UTC.
 
In April 2007, the International Telecommunications Union
re-allocated the 7300-7350 KHz band from "fixed service" to
broadcasting. Since then, interference on the 7335 KHz frequency has
come from many broadcasters around the world, prompting CHU's move.
 

cmradio

  • Guest
Re: CHU Moving to 7850 kHz
« Reply #1 on: December 25, 2008, 1222 UTC »
Great news! 7335 always was a crap frequency for them.

Peace!

Offline SW-J

  • Hero Member
  • *****
  • Posts: 544
  • Dallas, Texas
    • View Profile
Re: CHU Moving to 7850 kHz
« Reply #2 on: January 02, 2009, 0207 UTC »
Great news! 7335 always was a crap frequency for them.

Peace!

How do you figure that?

It worked well for many years, and there was a time I used them over WWV for time checks back when I lived in one of those states next to Canada.

Beings it was 7335 it also put it in the range of 10-80 M ham radios like the FT-101 which were not general coverage and could not receiver either 3.333 5, 10 15 or 20 MHz WWV stations!
o Icom IC-756ProII, ProIII, Alinco DX-70, Kenwood TS-680s
o WinRadio G303e, Degen/Kaito 1103/DE1103, Stoddart NM-25
o 1/2 wave 80m Dipole used with several tuners
o Tuned loops from 2' thru 16' diam. capable of 160m thru 10m

Offline bobby_blaze

  • Newbie
  • *
  • Posts: 16
    • View Profile
Re: CHU Moving to 7850 kHz
« Reply #3 on: January 02, 2009, 0258 UTC »
I always had trouble hearing them @ the old frequency.
JJY would come in a lot stronger on most evenings.

cmradio

  • Guest
Re: CHU Moving to 7850 kHz
« Reply #4 on: January 02, 2009, 0323 UTC »
Great news! 7335 always was a crap frequency for them.

Peace!

How do you figure that?

If you lived on the west coast, you would not say that. Other than a couple of years around sunspot peaks, 40M is a crap E-W propagation band.

Peace!

Offline SW-J

  • Hero Member
  • *****
  • Posts: 544
  • Dallas, Texas
    • View Profile
Re: CHU Moving to 7850 kHz
« Reply #5 on: January 02, 2009, 0350 UTC »
Great news! 7335 always was a crap frequency for them.

Peace!

How do you figure that?

If you lived on the west coast, you would not say that. Other than a couple of years around sunspot peaks, 40M is a crap E-W propagation band.

Peace!
Then, can I make a hint of a suggestion and recommend that the receiving party switch to another frequency?

A 'bad' or crap freq for one person might actually be a good frequency for another ... a better way to have expressed that might have been 'always had crap reception on that band given propagation and my location'. These are, after all, utility (time and frequency reference stations) stations; one should suffice for another JJY, WWV, WWVB, CHU etc. for the purposes they were designed.

Anyway, just sayin ...

(In the spirit of full disclosure - for both work and ham-hobby, I have zero-beat/made use of these time-base/frequency references stations on a number of pieces of gear over the years including counters, signal generators and now the higher-accuracy synthesized gen coverage and ham rigs over the years using WWV; WWVB, the VLF source, used to be *the* standard phased tracked by labs to keep the central 10 MHz frequency source accurate before GPS ... you probably know all this! Sorry for the history lesson! Full disclosure:  been in comms, incl. engineering and even ops aspects for awhile in the yrs since school!)
o Icom IC-756ProII, ProIII, Alinco DX-70, Kenwood TS-680s
o WinRadio G303e, Degen/Kaito 1103/DE1103, Stoddart NM-25
o 1/2 wave 80m Dipole used with several tuners
o Tuned loops from 2' thru 16' diam. capable of 160m thru 10m

cmradio

  • Guest
Re: CHU Moving to 7850 kHz
« Reply #6 on: January 02, 2009, 0925 UTC »
So, you're another old fart at radio ;D

Oughtta figured, we're the only ones to ramble on long winded ragchews of useless-but-interesting-facts while these pups stick to "texting-thumb" length answers, LOL!

Yeah, as I said... crap frequency :P ;D

Peace!