Oh, a big DUH on my part! 



A 5000a and PSDR 1.18.2. 




----- Original Message ----- 
From: "Tim Ellison" <telli...@itsco.com> 
To: vtnn...@comcast.net, "Flex Radio" <flexradio@flex-radio.biz> 
Sent: Friday, August 28, 2009 11:06:43 PM GMT -05:00 US/Canada Eastern 
Subject: RE: [Flexradio] How accurate is the SWR meter in PSDR? 

What radio hardware are you using? 

-Tim 

-----Original Message----- 
From: flexradio-boun...@flex-radio.biz 
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of vtnn...@comcast.net 
Sent: Friday, August 28, 2009 10:57 PM 
To: Flex Radio 
Subject: [Flexradio] How accurate is the SWR meter in PSDR? 



I installed a SteppIR BigIR MKIII in my yard yesterday and it seems to be 
working ok. 
However I am getting some very different SWR readings when I compare the SWR in 
PSDR vs my LP-100. 

Here is what I am getting on my BigIR. Some are crazy different. 
 PSDR    LP-100 
3.525    1.4 3.52 
3.805  1.5 4.0 
3.925    1.5 2.92 
5.371  1.4 2.15 
7.025  1.6 1.32 
7.295  1.4 1.30 
10.105  1.7 1.63 
10.145  1.6 1.62 
14.025  1.2 1.99 
14.345  1.3 1.98 
18.070  1.5 1.75 
18.165  1.3 1.74 
21.025  1.3 1.59 
21.445  2.1 1.60 
24.895  1.1 1.99 
24.985   1.1 2.16 
28.027  5.7 1.89 
29.027  1.0 2.41 


Then I get these on a dumnmy load. Some are pretty close and some are not. 
 PSDR    LP-100 
1.825   1.3 1.29 
1.975   1.2 1.29 
3.525   1.0 1.31 
3.925   1.0 1.31 
5.371 1.0 1.31 
7.025 1.0 1.31 
7.295 1.1 1.30 
10.105 1.3 1.26 
10.145 1.3 1.26 
14.025 1.4 1.23 
14.345 1.4 1.23 
18.070 1.1 1.22 
18.165 1.1 1.22 
21.025 1.2 1.19 
21.445 1.3 1.19 
24.895 2.1 1.18 
24.985  2.1 1.18 
28.027 2.5 1.20 
29.027 2.2 1.21 



So the question is which do I believe? 

Thanks 
Zack 
N8FNR 



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