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Author Topic: Calling Frequencies on 40 meters  (Read 2780 times)
VE7ALQ
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Posts: 349




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« on: September 10, 2004, 03:01:05 PM »

Can someone please tell me what the CW calling frequency is on 40 meters?  I get answers on 7.040 mHz but know that is the CW QRP calling frequency, and 7.040 mHz also is allocated to digital modes here in Canada(!)  Surely there is a calling frequency lower down on 40 meters where I can get an answer to my CQ for a rag-chew without pretending to be QRP or interfering with Canadian digital  modes?
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N8UZE
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Posts: 1524




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« Reply #1 on: September 10, 2004, 04:31:52 PM »

40m CW is busy enough in the evening that all you need to do is find an open frequency and call CQ.  It shouldn't be long before you get a response.  There's no real need for a "calling frequency." I don't know if one exists or not.
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N6PEH
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Posts: 104




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« Reply #2 on: September 10, 2004, 08:28:03 PM »

Try 7.058, that's a nice one for QRS.  If you're a cw hotshoe, try 7.032.  Lot's of DX to be found there.  So I've heard.
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W4YA
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Posts: 317




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« Reply #3 on: September 12, 2004, 05:21:50 AM »

What is a "calling frequency?"
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N8UZE
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Posts: 1524




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« Reply #4 on: September 12, 2004, 09:02:20 AM »

A "calling frequecy" is a commonly used frequency for establishing contact.  Once contact is established the two parties move to another frequency for their QSO.  Generally on HF, a calling frequency is unnecessary.  However the QRP people do this since their signals as they want to be able to find other QRP operators rather than be mixed in with the other operators.  The FISTS organization also has "calling frequencies" in both novice and general portions of the CW segments so as to facilitate finding other FISTS members.

The commonest use of calling frequencies seems to be in VHF/UHF work where they are actually listed in the gentlemen's agreements known as band plans.  This facilitates making contacts on FM simplex, SSB, and CW.  Once people establish a contact, they are supposed to move off the "calling frequency" so others can make their calls.
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VE7ALQ
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Posts: 349




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« Reply #5 on: September 12, 2004, 01:18:17 PM »

I was interested in calling frequencies on 40 meters because I generally leave the IC-706 on during the day with the 500 Hz CW filter applied.  I would like to find a frequency to park the IC-706 so that I can hear activity without having to go to the effort of getting my wheelchair over to the radio and spinning the dial every five minutes or so.  Once I hear "CQ" then I can respond (and QSY).  I don't have a killer signal with my compromise ButterNut HF6V vertical on the roof of this apartment building, so don't expect a lot of replies to a "CQ" if I make one.

Calling frequencies I have found are:
7028, 7040, 7058
It seems 7040 is the most used, even by non-QRP stations.
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NJ0E
Member

Posts: 48




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« Reply #6 on: September 16, 2004, 03:07:39 PM »

> However the QRP people do this since their signals
> as they want to be able to find other QRP operators
> rather than be mixed in with the other operators.

i don't quite agree with you on this. i am a qrp'er,
and have enjoyed having many qso's with non-qrp
stations on 7040 khz.

many qrpers enjoy homebrewing, and alot of us put
together crystal controlled transmitters or
transceivers, such as the rockmite, pixie 2, tuna
tin 2, tiny tornado, etc.

having 'qrp calling frequencies' makes it easy for
suppliers to stock crystals on frequencies that
would be useful to us and allows us to make
contacts using our creations easily.

qrpers also often leave a receiver on in the
shack when they're soldering something together,
and having the "calling frequencies" gives us an
agreed-upon place to listen for activity.

by all means, monitor the qrp calling frequency
if you find that it works for you; no need to
"pretend" to be qrp. alot of us "half watters"
would appreciate a b.c. contact.

73
scott nj0e
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NJ0E
Member

Posts: 48




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« Reply #7 on: September 16, 2004, 03:54:36 PM »

by the way, if you're so inclined, i also encourage
anyone this winter to monitor a few 80 meter
frequencies that are popular with qrp homebrewers.

3579.545 khz - "colorburst" crystal frequency
(crystal is present in all ntsc television sets;
often available for about 25-50c). this was used
in doug demauw's "Sardine Sender".
see:
http://www2.arrl.org/members-only/tis/info/pdf/0111054.pdf

3560 khz - the "official" QRPARCI/AmQRP 80m QRP
calling frequency

3686.4 khz - a cheap microprocessor cystal; available
for about 25-50c. used by the north georgia qrp club
 in the "NOGAnaut" and by the knightlites qrp club in
the knightlite "SMiTe".
see:
http://www.qsl.net/nogaqrp/projects/NOGAnaut/NOGAnaut.html
and:
http://www.knightlites.org/Knightlite/smite_main.htm

you might hear some interesting rigs on these!
73
scott nj0e
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