[Elecraft] Accurate QRP Wattmeters?

Tom McCulloch thom2 at att.net
Sun Jul 3 21:54:51 EDT 2005


Chuck and all.

  Can you tell me if you need to use an RF probe along with the DL-1, or is 
the circuitry built into the DL-1 and you can just use the DMM probes?

Thanks.
Tom
WB2QDG

----- Original Message ----- 
From: "Chuck Gehring" <gehringc at charter.net>
To: "J. Coote" <TSCM at jps.net>; <elecraft at mailman.qth.net>
Sent: Sunday, July 03, 2005 5:10 PM
Subject: RE: [Elecraft] Accurate QRP Wattmeters?


> The Elecraft Mini-Module DL1 Dummy Load has test points that allow you to
> use a DMM to measure out put.  I can't imagine anything in that price 
> range
> being more accurate
> 73, KI4DGH
> Chuck Gehring
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net]On Behalf Of J. Coote
> Sent: Sunday, July 03, 2005 12:46 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Accurate QRP Wattmeters?
>
>
> Hello List,
> I've posted my question on QRP-L and here as well- since I will be 
> building
> a KX-1.
> I am looking for good ways to measure power output from my KX-1 while I am
> building it.
> What first came to mind was to set up my Tek 492 analyzer on a 2 dB scale
> and then use
> a 30 or 40 watt (high power) attenuator to measure CW power.  I have 
> several
> Bird 43's
> but have never seen Bird slugs for QRP LF, MF or HF.  I think a competing
> company may
> have a through wattmeter with HF but I forget the lowest scale of that 
> one.
> I have read
> the E-Ham reviews for the Oak Hills QRP wattmeter-  300 Khz to 54 MHz and
> 100mW, 1W and 10W
> scales- still thinking over the reviews.
>
> Comments on the accuracy of using the Tek 492 method, and on other 
> accurate
> wattmeter options?
>
> 73
> Jay
> W6CJ
> AAR9QM
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com 



More information about the Elecraft mailing list