Question about Cobra 25 LTD 40-Channels Base CB Radio
Need to know how to clip and tune modulations, the radio has low modulations and it's a new radio, thank you for any assistance available
I think he means more power, you can get over 30 watts out of a cobra 29. Just take it to a GOOD cb shop and for 50 bucks your set. Make sure they don't use a MOD kit!!
Posted on Jan 02, 2009
If I am correct what you are saying is that your radio has poor modulation? ok. First I need you to run two tests for me.
1) Power output Test: connect a power meter to the antenna jack and the other connector of the meter to the antenna, Key up the mic and record the power reading is should be 4W PEP or 36.02dbm
2) Then I want you to take an oscilloscope and put a 1khz tone in to the mic while measuring the RF output at 100% modulation the wave form should not clip.
If these two test are good then your modulation is ok. What I believe you are asking for is more power or better power efficiency.
Try to tune your antenna for 1:1.0 or 1:1.2 SWR with a SWR meter this should deliver the full power to your antenna.
I hope this helps
Posted on Nov 04, 2008
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Posted on Jan 02, 2017
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