QRP amp.. Which one???

Discussion in 'QRP Corner' started by K8TDN, Apr 6, 2017.

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  1. VA3VF

    VA3VF Guest

    Depending on the planned use, a QRO rig at QRP power still has a very high current draw. Some radios can still draw more than 1 A on receive.

    73 de Vince, VA3VF
     
  2. VA3VF

    VA3VF Guest

    Size, too small, can be a problem, but technically speaking, they can be as good as the big radios. KX3 and KX2 are two examples.

    73 de Vince, VA3VF
     
  3. N6ALT

    N6ALT Ham Member QRZ Page

    I have a Hardrock 50 and like it real well, but I rarely use it, it's just for those off times when I need it.

    Joel
    N6ALT
     
  4. KG5BJV

    KG5BJV Ham Member QRZ Page

    I totally agree is there a way for someone to see my entire logbook? I work qrp with an end fed 8010 130ft wire antenna its not high but its a great antenna.
     
    KC8VWM likes this.
  5. KA0USE

    KA0USE Ham Member QRZ Page

    dudes, i surrender.
    i have tried various forms of hr-50 and hardrock-50 on google and ebay and all i'm getting is hard rock cafes and ummm.... potency enhancers.
    i'm dyin' here.

    help us mentally challenged folks by giving maker's names, too, puh-leeese!
    thanks much.
     
  6. KM4DYX

    KM4DYX XML Subscriber QRZ Page

    Try this:

    https://hobbypcb.com/products/hf-radio/hardrock-50-hf-power-amp
     
  7. KA0USE

    KA0USE Ham Member QRZ Page

  8. AA4OO

    AA4OO Ham Member QRZ Page

    Yes, a good antenna will trump an amp...

    http://www.hamradioqrp.com/2016/02/the-grand-illusion.html
     
    KD8EDC and KC8VWM like this.
  9. WA7WJR

    WA7WJR XML Subscriber QRZ Page

    I have been using an RM Italy HLA 305V bought from DxEngineering with an Elecraft K2. Great combination when using K2 at home. Primarily cw and get 100w+ on low setting, but amp will put out 200w on hi setting.

    I also like the ability to use my K2 as a QRP rig in the field, or set it up at home as second rig.
     
  10. WD4IGX

    WD4IGX Premium Subscriber QRZ Page

    Pedantic much?

    I'm sure we all know exactly what he means.

    The 405 is a good amp. I have one. There is a mod to replace the RF sensing with relay a keying line to the T/R relay. This isn't necessary for SSB but in CW there is a slight delay while RF is applied before the replay closes, resulting in a) missing the first dit of CW transmission and b) hot keying the relay with accelerated failure.

    http://www.dj0ip.de/ten-tec-stuff/405-keying-mod/

    I just bought a 418 which is a great amp but much more rare and I had to pay a premium for it over what I paid for the 405. The 418 is 100W and covers 160 and 6 as well as 80-10.
     

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