g4zow
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Karma: 0 |  | Power AIM 120
« Thread Started on Mar 25, 2008, 4:29am » | |
I cannot find a comparison table for this commercial / broadcast analyzer with the 4170.
Does anyone know if the output level and been increased at all (to overcome nearby broadcast signals) and/or if the out of band rejection figures have been improved?
At 5X the cost of the 4170 I'd imagine a higher spec on one or more areas.
Thanks.
Phil G4ZOW
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Bob
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Karma: 2 | | Re: Power AIM 120
« Reply #1 on Mar 25, 2008, 8:18am » | |
Hi Phil,
The PowerAIM is able to make antenna measurements in the presence of strong external signals such as found on a commercial broadcast antenna.
Stray signals up to 25Volts peak at the input can be tolerated while measurements are in progress. More information and the specs can be found here:
http://arraysolutions.com/Products/poweraim_120.htm#top%20of%20page
By comparison, the AIM4170 can make accurate measurements with up to 100mv of stray signal on the input. When a broadcast station is operating nearby, the 4170 may not be able to measure a 160 meter antenna without using a high pass filter. The PowerAIM can make measurements within 50 KHz of strong interference without a filter.
73/Bob
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