QRP Water-Hole Frequencies ???

Discussion in 'Discussions, Opinions & Editorials' started by KK4LPG, Apr 5, 2013.

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  1. KK4LPG

    KK4LPG Ham Member

    I have read that 30M has a QRP calling freq at 10.116 MHz.
    Are there any other common spots for QRP folks ?

    Here, EPO is 1 Watt, CW only, on 20M.
     
  2. W7UUU

    W7UUU Premium Subscriber

    Here ya go. Some will also add 7.030 as well - I've always considered 7040 to
    be my "go to" for QRP but 7030 seems to be the standard these days for kits
    and such that come with a crystal.

    The other chart I posted below shows 7.030 as the European QRP frequency.

    Dave
    W7UUU




    [TABLE="class: datatable, width: 575"]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]MF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]160 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]1810 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]MF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]160 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]1818 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]MF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]160 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]1843 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]MF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]160 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]1910 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]LSB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]80 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]3560 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]80 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]3690 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]80 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]3710 kHz (Novice)[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]80 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]3711 kHz (Novice)[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]75 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]3985 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]LSB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]40 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]7040 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]40 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]7090 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]40 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]7110 kHz (Novice)[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]40 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]7286 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]LSB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]30 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10106 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]30 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10116 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]20 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]14060 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]20 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]14285 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]USB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]17 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]18069 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]17 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]18096 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]17 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]18130 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]USB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]15 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]21060 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]15 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]21110 kHz (Novice)[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]15 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]21285 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]15 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]21385 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]USB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]12 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]24906 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]12 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]24956 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]USB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]28060 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]28110 kHz (Novice)[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]28360 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]HF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]10 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]28885 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]USB[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]VHF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]2 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]144060 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]CW[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #FFFFFF, align: left"]VHF[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]2 Meters[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]144285 kHz[/TD]
    [TD="bgcolor: #FFFFFF, align: left"]SSB[/TD]
    [/TR]
    [/TABLE]


    [TABLE="width: 534"]
    [TR]
    [TD="width: 13%, align: center"]160m[/TD]
    [TD="width: 15%, align: center"]1.810[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]1.910[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]1.843[/TD]
    [TD="width: 28%, align: center"]Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]80m[/TD]
    [TD="width: 15%, align: center"]3.560[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]3.985[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]3.710[/TD]
    [TD="width: 29%, align: center"]Novice[/TD]
    [TD="width: 15%, align: center"]3.690[/TD]
    [TD="width: 28%, align: center"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]40m[/TD]
    [TD="width: 15%, align: center"]7.040[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]7.285[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]7.030[/TD]
    [TD="width: 29%, align: center"]Europe[/TD]
    [TD="width: 15%, align: center"]7.090[/TD]
    [TD="width: 28%, align: center"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]7.060[/TD]
    [TD="width: 29%, align: center"]Europe[/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]7.110[/TD]
    [TD="width: 29%, align: center"]Novice[/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]30m[/TD]
    [TD="width: 15%, align: center"]10.106[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]20m[/TD]
    [TD="width: 15%, align: center"]14.060[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]14.285[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]17m[/TD]
    [TD="width: 15%, align: center"]18.096[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]15m[/TD]
    [TD="width: 15%, align: center"]21.060[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]21.385[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]21.110[/TD]
    [TD="width: 29%, align: center"]Novice[/TD]
    [TD="width: 15%, align: center"]21.285[/TD]
    [TD="width: 28%, align: center"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]12m[/TD]
    [TD="width: 15%, align: center"]24.906[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]10m[/TD]
    [TD="width: 15%, align: center"]28.060[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]28.885[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"]28.110[/TD]
    [TD="width: 29%, align: center"]Novice[/TD]
    [TD="width: 15%, align: center"]28.385[/TD]
    [TD="width: 28%, align: center"]Novice[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]28.360[/TD]
    [TD="width: 28%, align: center"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]6m[/TD]
    [TD="width: 15%, align: center"]50.060[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]50.885[/TD]
    [TD="width: 28%, align: center"] [/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]50.285[/TD]
    [TD="width: 28%, align: center"]SSB Europe[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"]2m[/TD]
    [TD="width: 15%, align: center"]144.060[/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]144.285[/TD]
    [TD="width: 28%, align: center"]SSB[/TD]
    [/TR]
    [TR]
    [TD="width: 13%, align: center"] [/TD]
    [TD="width: 15%, align: center"] [/TD]
    [TD="width: 29%, align: center"] [/TD]
    [TD="width: 15%, align: center"]144.585[/TD]
    [TD="width: 28%, align: center"]FM[/TD]
    [/TR]
    [/TABLE]
     
  3. WB2WIK

    WB2WIK Premium Subscriber

    With 1W out on 20m CW, I'd mostly answer other stations who aren't calling for DX and have nice signals.

    Although 14.060 is posted as a QRP frequency for 20 CW, what I hear above W1AW (14.0475) is almost all slow speed guys regardless of power. OTOH, I've answered many CQs at 30-35 wpm down lower (14.040 or so) to find they were QRP stations. Just worked a guy last night in VE3 who was running 2W or 3W (forget) down around that frequency. If he hadn't told me, I'd have never known!
     
  4. W7UUU

    W7UUU Premium Subscriber

    that's how I play QRP. I just get on and hunt for CQs and see if they can hear me. I almost
    never call CQ on anything under 40 watts - certainly not with my 200 mW fire breathing monster!

    Dave
    W7UUU
     
  5. K5TRI

    K5TRI XML Subscriber

    See .. I'm quite the opposite :). Turn the KX3 down to 1W (or less) and call until someone answers. When I send them
    my power they are always shocked. It's fun to send 1W to a guy who's running 100W but gave me a 549 or 559 report
    (assuming it was real).
     
  6. KK4JSJ

    KK4JSJ XML Subscriber

    I bought the KX3 with the knowledge that it couldn't be used inside an apartment with a wire dipole running 5 watts on SSB and that I needed to go out into the big blue room with the bright yellow chandelier to chat with people on the other side of the pond....then I found out I was wrong. Today I think I surprised a few fellows...one in N. Ireland and one in Hungary when I told them I was running a KX3 with 5 watts into a wire dipole indoors...one report said a true 59 and the other said bouncing between a 56 and a 57. It was on 17 meters and the band was really strong for me during that time.

    Also, nothing like hearing people in the pileup huff and puff thinking you are lying about your power level....or simply perplexed at why they are running 400 watts or greater and I got called first....even when I never announce QRP.

    Nothing like good propagation.
     
  7. KK4LPG

    KK4LPG Ham Member

    Guys, Thanks.



    W7UUU,
    Great List. Thhhhanks. Have read several of your helpful posts on this forum.
    Great List. Thhhhanks.


    WB2WIK
    Yes that works well. Probability is on my side with that technique.
    I mostly listen for a good signal, calling CQ, then answer.




    K5TRI
    KX3 is really nice rig. Really nice! Yup, Really nice rig.
    But , I prefer the personal challenge of QRP and minimal equipment.
    When I was a kid (K4KKQ general) I had surplus BCC??? and an ARC-5, CW only.
    Still have my 1946 Vibroplex, and now a much older, slower fist.
    So, I don't think I could ever get used to a processor controlled Transceiver.


    KK4JSJ
    "Then I found out I was wrong" ALSO !
    My first QSO in 50 years, along with a new general license,
    was with 0.2 Watts EPO, into the spare telephone line in the attic,
    with WY4J , Memphis, TN, to Miami, FL , for a distance of 862 miles.
    "I was wrong" and totally surprised at 4310 miles per watt !!!


    Guys,
    Thanks so much for so much really good information.

    73 from KK4LPG
    Bio on website: www.GeoCities.WS/glene77is
     
    Last edited: Apr 6, 2013
  8. G8ADD

    G8ADD Ham Member

    Another one to be aware of: the forty metre SOTA frequency is nominally 7032, this offset from the EU QRP frequency was adopted because although the SOTA Activators are nearly always QRP, the Chasers calling them often run 100+ watts so it was considered courteous to observe an offset.

    73

    Brian G8ADD
     
  9. KB9BVN

    KB9BVN Ham Member

    7030.7 is also a QRP hangout. The rock bound PigRig is locked in at that freq and there are about 300 of them in circulation now. Best little radio $40 can buy. See http://www.kitsandparts.com

    A good website to keep track of QRP and SKCC is http://ham.jit.su

    72 de KB9BVN
     
  10. N2ADV

    N2ADV Premium Subscriber

    A KX3 is next on my list :)

    The FT817 has been living in the car as of late.
     
  11. W8ZNX

    W8ZNX Subscriber

    Ahoy

    most of the time run qrp
    with some kind of rock bound glow bug

    late night 80
    hear station calling cq on empty band

    call them only one or two kc away
    and have them not tune or listen for anybody
    calling off freq

    so most of the time simply call cq
    and hope somebody hears me

    40 meter North America qrp freq was moved
    from 7040 to 7030

    because the rest of the world was using 7030 as qrp calling freq

    7040 is the European RTTY calling freq

    east coast and midwest qrp ops were finding
    7040 to be tied up by strong signal RTTY boys
    that did not hear qrp traffic on the freq

    oy oy
    mac
     
  12. KB4QAA

    KB4QAA XML Subscriber

    I have never understood the point of having designated QRP calling frequencies on HF, and have never used them. It's just silly and pointless.

    If you are QRP, either call CQ somewhere and hope to be heard, or go hunt down your prey. For everyone else, if you want to work QRP'ers, then slowly and carefully tune the band listening for that faint signal...

    This continuing push to have assigned, canned, and pre-packed operations is not a trend in keeping with ham traditions!
     
  13. WB2WIK

    WB2WIK Premium Subscriber


    I kind of agree, it's a bit silly.

    I'm not a QRP'er much, but what I often do on CW is make a contact with 100W and if I get a 599 report, my next transmission is at 5W, just to see if the other guy notices. If he doesn't report he's losing me, the next transmission is at 1W, to see if he notices then.

    When prop's good and signals are strong, I've dropped down to 100mW sometimes before the other guy reports on the QSB. I never say what I'm doing, as it's just an experiment for "me," and not the other guy.

    Although not listed as a specification, my TT Jupiter, for example, seems to be able to dial down to <100mW just by turning the power level control. I don't think they claim that, but it does that.
     
  14. W7UUU

    W7UUU Premium Subscriber

    Hi Steve - what radio do you use that allows you to drop power from 100W to 100mW, and how
    are you accurately measuring power that low while being able to also handle the 100W?

    I have a mW power meter but it only goes to 20 watts on high power (20mW on low). I'd
    have to switch it out to run my FT-950 at 100W. Plus my Yaesu only throttles down to
    5 watts (I do it with HRD control).

    Just curious how you're doing the above.

    Dave
    W7UUU
     
  15. KB9BVN

    KB9BVN Ham Member

    Assuming there is a whole lot of stuff in this world that you will never understand, do you also just assume that to be silly and pointless too?

    They're called watering holes for a reason. See if you can guess why.
     
  16. W8ZNX

    W8ZNX Subscriber

    qrp calling freq's come from pre Argonaut days
    Mike WA8MCQ Ade W0RSP Doug W1CER
    the first few years of the modern QRP movement

    when nearly all qrp ops were rock bound
    it simply made sense to have common freqs
    to find fellow qrp ops

    when running qrp es qrpp its even more fun
    to run in to a fellow low pwr op
    watering holes make it easier to find fellow qrp ops

    Mac
    ARCI # 4203
     
    Last edited: Apr 6, 2013
  17. KK4LPG

    KK4LPG Ham Member

    Dave, W7UUU
    Thanks for the tip on 14.060 MHz QRP water-hole.
    It is so near some digital comm noise here that I had avoided anything above 14.050.
    But, it is alive and well, as you suggested.
    Just need to tune a little more carefully.

    This fine Kenwood TS830S from 1980's has a hot receiver, variable bandpass IF,
    and combined with my own mechanical CW audio filter, copy is generally really fine on CW .
    Frequently I run it with the IF wide open at 2.8 KHz, with just my CW audio filter,
    as my filter sounds much nicer than the Narrow IF filters. Maybe it is just my old ear !

    I have run 200mW on this rig.
    Bad technique, but since the power out tubes were fried when I borrowed it,
    it only puts out 1 W to 3 W (depending on how wet the ground is,
    and whether I jiggle the band-switch knob !!!).
    I am guessing that the 900V B+ is pulling the driver's RF through the tube,
    and that is only a Watt or Two. There is no apparent gain from the Final.

    BUT, with only 1 W Transmitting predictably, if I want 200 mW,
    then I just switch from my outside vertical to my inside telephone cable
    running through the attic 70', under the heating duct work, etc.
    The MFJ-941E tuner will say SWR 1:5 and calculates to 200 mW going into the telephone cable.

    BTW, after returning to Ham radio after 50 years, and having a new general call,
    my first contact on March 17, 2013, was with WY4J in Miami, to here Memphis, TN, 862 miles on 200 mW.
    That calculates to 4310 miles per watt. I was very surprised, and it made me a believer in QRP.

    Doing QRP, I usually copy signals that don't push the S meter at all.
    It takes a lot of skill to pull out a signal that is near and in-out of the noise.
    That is what makes CW QRP more fun
    than buying a super rig and making two machines talk to each other :)

    That's my story, Dave.
     
  18. WB2WIK

    WB2WIK Premium Subscriber

    I use an Autek WM-1, which is pretty accurate from legal limit down to about 2W (you do have to switch ranges, as they are 2000-200-20W full scale, switchable). Below that what I've done is just use my Boonton RF Microwattmeter (42AD) to determine what the rig's output really is from 1W down (it will measure down to about 10uW with +/- 1dB accuracy) and for those levels I marked the front panel control, so I don't go back and re-check it all the time. The markings seem to be fairly consistent, probably within a dB or so band-to-band.

    My Ten Tec Jupiter will go down to 100mW or lower, although the specs don't claim it will. But it does. Single front panel control will zip it from 100W to 100mW with the twist of one knob, in a second.

    Interestingly, the TTs TFT display provides a 3-digit display of output power which is eerily accurate from 105W (max) down to 1W. When it reads "1," the output really is about 1W. No menus or pre-sets or anything like that, just hit PWR and turn a panel knob. Very convenient.

    However, if you hit the TUNE button to engage the internal ATU, that overrides the PWR setting and always runs ~20W output for tuning up. I did that in the middle of a QRP QSO one time and the other guy said, "huge QSB, for a few secs u peaked up to S9 plus then back down again." That's when I hit the TUNE button.:p I'd like to be able to override that and have it tune up at 1W or less, but maybe it just can't.
     
  19. W0IS

    W0IS Ham Member

    Most of my HF operating is QRP, and I'm generally not worried about the other guy's power level, so I don't bother too much with QRP calling frequencies. But some prefer 2-way QRP, so it makes sense to have a spot to start looking. Also, as noted above, if you're building a crystal-controlled rig, it's a good idea to have the same crystal as the other people you want to work.

    UUU's chart above looks more or less accurate. As noted, most of the 40 meter QRP'ers seem to have moved from 7040 to 7030. I guess the 40 meter "novice" frequency is still OK, but novices are no longer allowed on the 80 meter frequency shown. So it looks like that chart is a bit out of date!
     
  20. W7UUU

    W7UUU Premium Subscriber

    WIK: thanks for that. And of course - I should have guessed Ten Tec - I used to have an Omni-D that
    had that variable power knob that went from near zero to 100w. I sure loved the QSK on that radio!

    Dave
    W7UUU
     
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