Author |
Message |
Johnny_be_good
Junior Member Username: Johnny_be_good
Post Number: 33 Registered: 3-2005
| Posted on Tuesday, December 23, 2008 - 9:37 am: |
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I have three different meters a Dosey,Para Dyn. and a MFJ all three give me a totaly different reading. My question is can I hook up my radio to the transmitter conn. on the meter and put a dummy load on the antenna conn. on the meter to check the meter being the dummy load is supposed to be a perfect matched ? Thanks John |
Marconi
Advanced Member Username: Marconi
Post Number: 796 Registered: 11-2001
| Posted on Tuesday, December 23, 2008 - 10:24 am: |
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Johnny why don't you give us the measurements you are comparing. 1.2:1 is totally different than 1.3:1, but it makes no difference with the operations of your rig. Yes, using a good dummy load can be a useful tool. How do the meters compare with the dummy load attached? |
Bruce
Senior Member Username: Bruce
Post Number: 4912 Registered: 9-2003
| Posted on Tuesday, December 23, 2008 - 12:33 pm: |
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Yes you can use a dummy load to see if the meter is working. also if you can rig up a 100 ohm and 75 ohm losd you can check for 2:1 and 1.5:1 readings too. What you might be looking at into a antenna is if your using a modified radio or a amp a meter that is very wide band ( covers up to 2 meters ) will also read harmonics too and THEY will increase meter readings. On 6 since 66
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Tech237
Moderator Username: Tech237
Post Number: 1101 Registered: 4-2004
| Posted on Tuesday, December 23, 2008 - 12:54 pm: |
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yes. IT should be darn close to 1:1 Simon Tech237 N7AUS
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Johnny_be_good
Junior Member Username: Johnny_be_good
Post Number: 34 Registered: 3-2005
| Posted on Wednesday, December 31, 2008 - 10:35 am: |
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Thanks all for the help just got back from Christmas visit and haven't had a chance to say thanks John |