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QRP Power Meter

ve3ega
 

Hi,

Does anyone know a good source for a QRP Power Meter, before I pull the trigger on a used WM2?
My existing is HB and works fine but I saw a passing reference to a tiny one one with an OLED Display somewhere?

73

jjpurdum
 

I ordered eBay 284879283916 and am very happy with it.

Jack, W8TEE

On Sunday, March 12, 2023 at 01:09:26 PM EDT, ve3ega <ve3ega@...> wrote:


Hi,

Does anyone know a good source for a QRP Power Meter, before I pull the trigger on a used WM2?
My existing is HB and works fine but I saw a passing reference to a tiny one one with an OLED Display somewhere?

73

Jay
 

This is a nice one.  No case but there is a 3D case for it on Thingaverse.

https://qrpguys.com/qrpguys-power-swr-dummy-load

On Mar 12, 2023 1:09 PM, ve3ega <ve3ega@...> wrote:
Hi,

Does anyone know a good source for a QRP Power Meter, before I pull the trigger on a used WM2?
My existing is HB and works fine but I saw a passing reference to a tiny one one with an OLED Display somewhere?

73

Dave VE3GSO
 

How about a QRPGuys SWR-Power-Dummy Load kit? Great little kit that works great.  My only quibble is the switch that selects the dummy load leaves the antenna connected.  Easy to fix with a little bit of PC board surgery.

Dave

On Mar 12, 2023, at 13:09, ve3ega <ve3ega@...> wrote:

Hi,

Does anyone know a good source for a QRP Power Meter, before I pull the trigger on a used WM2?
My existing is HB and works fine but I saw a passing reference to a tiny one one with an OLED Display somewhere?

73

Donald S Brant Jr
 

On Sun, Mar 12, 2023 at 01:18 PM, jjpurdum wrote:
I ordered eBay 284879283916 and am very happy with it.
I have the same meter and have also been happy with it, after swapping the SO-239 connectors for type N; no UHF connectors in my shack, all are N, BNC, SMA or (RX only) F.  
New connectors:  https://www.ebay.com/itm/232220117727
73, Don N2VGU

KK4ITX John
 

I have finished my QRP Guys kit an mounted it in a Hobby Lobby ($2.49) 2 deck card box. Works well.
John
KK4ITX

🙃Each mistake is a learning opportunity.🙂

Dennis Rieger
 

On Sun, Mar 12, 2023 at 10:28 AM, Jay wrote:
https://qrpguys.com/qrpguys-power-swr-dummy-load
Here's the link to the Thingiverse file https://www.thingiverse.com/thing:5333701

Dennis
KK5DB

ve3ega
 

Thanks ALL you Guys,

It looks like I got a lot more choices than I had originally thought "QRP Guys" and the "Thingiverse" case is a neat option but I did find this one:

https://www.tindie.com/products/jasonkits/qrp-power-meter-attiny85-with-oled-display/ and it kinda looks like the one I had seen but this one is a little bit different!

Thanks again for your suggestions, if I spot the other one I will post it here, after all we all need a Power Meter in our 'go-bag'!

73

KK4ITX John
 

That's a much cheaper alternative but I didn't notice that it had an SWR meter..... seems that that is most important with the QDX..... power, not so much ?

John
KK4ITX



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     

Mark WO7T
 

I have one of these and they work well, and the case is pretty slick when all put together.

https://www.tindie.com/products/NM0S_qrp/qrpometer/

GL whatever you choose.

73

Mark

ve3ega
 

Thomas,

You have a good point, I missed that - a Power Meter per se, is not a bi-directional device like an SWR/PWR combo Meter is - on reflection, (excuse the pun) I will keep searching!

73

Donald S Brant Jr
 

A nice feature of the QRPometer is that its SWR bridge has 6dB loss, keeping the load seen by the transmitter at 2:1 or better during antenna tuneup.  
I added some bent wire bumpers for the toggle switches and connectors for safety during transport.
73, Don N2VGU

Colin Kaminski
 

I don’t know if Kees has any more but I finished up a Barb-a-watt kit today. It’s a quick and easy kit and works well. 
--
Colin - K6JTH 
http://tangokeys.com

William Smith
 

Nice case!

73, Willie N1JBJ

On Mar 12, 2023, at 3:58 PM, KK4ITX John via groups.io <jleahy00@...> wrote:

I have finished my QRP Guys kit an mounted it in a Hobby Lobby ($2.49) 2 deck card box. Works well.
John
KK4ITX

🙃Each mistake is a learning opportunity.🙂





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Colin Kaminski
 

I like the case too. I have 3-D printed a few cases but I am not happy with them. 
--
Colin - K6JTH 
http://tangokeys.com

Hans Summers
 

Hi all

FYI the NM0S QRP-o-meter is also what we are using here at QRP Labs HQ. Found it accurate and reliable and easy so far. 


On Mon, Mar 13, 2023 at 12:57 AM Mark WO7T <wo7t@...> wrote:

I have one of these and they work well, and the case is pretty slick when all put together.

https://www.tindie.com/products/NM0S_qrp/qrpometer/

GL whatever you choose.

73

Mark

cw@...
 

I built my WM2 over 10 yrs ago Terry and have been very happy with it, i think you would be too.

72, Brent VA3YG

Cliff
 

Mark,

I'm curious on that unit. How does one select PWR/VSWR and ANT/D.L. with one switch? Same question on On/OFf and In/Out.

73,
Cliff, AE5ZA



On Mar 12, 2023, at 16:57, Mark WO7T <wo7t@...> wrote:

I have one of these and they work well, and the case is pretty slick when all put together.

https://www.tindie.com/products/NM0S_qrp/qrpometer/

GL whatever you choose.

73

Mark


Daniel KK4MRN <SQLDan2000@...>
 

Hello VE3EGA,

QRPme has the QRP Directional Wattmeter Kit for US$50
https://qrpme.com/?p=product&id=DWM

The kit is based on "an updated version of Roy, W7EL, Lewallens Simple & Accurate Directional Wattmeter from 2/90 QST."

The meter works sort of like the WM2.

And there is a google group for the QrpMeKits 

There are also people who build a SWR Bridge from a kit or home brew it.  Then hook it up to a microcontroller such as an Arduino UNO to calculate the SWR and display the SWR, Forward Power, and Reflected Power on a LCD or OLEDB screen.  You can find many examples of this via an internet search.

One example:
KK5JY SWR / Power Meter using a SWR Bridge from a kit and an Arduino UNO
https://kk5jy.net/swr-meter-v1/

73 Daniel KK4MRN

Chuck ke9uw
 

I liked the QRPoMeter. so much I built two of them…in case I forgot where I put one.

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