TVI trap. help

[1iwilly]

besides the $5.000 spectrum analyser is there another way to reset the tvi trap on cb radio. i bought a use radio and it seems the previous owner mess with the tvi slug.:

 

[hookedon6]

$5k for a tvi scope????

thats kinda high. i've NEVER seen one sell for more than $2k

 

[1iwilly]

$5k for a tvi scope????

thats kinda high. i've NEVER seen one sell for more than $2k

i got that from a few cb shops i call they said they didn't have the $5.000
spectrum analyser to check it with

 

[Captain Kilowatt]

i got that from a few cb shops i call they said they didn't have the $5.000
scope to check it with

That sounds like a spectrum analyzer and not a scope. You need a spectrum analyzer to look at harmonics. A quick and dirty way to get it close enough is to transmit while watching your TV tuned to channel 2 (second harmonic) or channel 5 (third harmonic) and tuning the slug for minimum interference.

 

[Red Ranger]

That sounds like a spectrum analyzer and not a scope. You need a spectrum analyzer to look at harmonics. A quick and dirty way to get it close enough is to transmit while watching your TV tuned to channel 2 (second harmonic) or channel 5 (third harmonic) and tuning the slug for minimum interference.

dddddddddddddd

 

[1iwilly]

That sounds like a spectrum analyzer and not a scope. You need a spectrum analyzer to look at harmonics. A quick and dirty way to get it close enough is to transmit while watching your TV tuned to channel 2 (second harmonic) or channel 5 (third harmonic) and tuning the slug for minimum interference.

thanks thats the magic word i just re edit my post. so channel 2 or 5 with no antenna connected to the tv.?? and radio next to it i have no cb antenna on my house so dummy load it is.

 

[jazzsinger]

Another cheap and cheerful way to do it would be to look for the 2nd or third harmonic around 54 and 81 mhz respectively on a scanner and tune the slug for minimum signal.