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Delta Tune

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Hondarider
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Delta Tune

Post by Hondarider » Thursday, 10 March 2011, 19:12 PM

Hey all, So on my Cobra 29 LTD, I have delta tune, now I found out it "Tunes the frequencies" But ive tried it many times turning the dial left and right and nothing happens. While people talking, and trying it out between conversations. Seeing if the people sound any crisper etc. But I have noticed nothing. I heard its a nice thing to have but I have found it no use. Am i using it wrong? Any suggestions? What is the difference between turning it left then turing it right?
Thanks.
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Polish Eagle
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Re: Delta Tune

Post by Polish Eagle » Thursday, 10 March 2011, 19:19 PM

For normal operation, set this control to the center position.
This feature has several uses and can help receiver operation.
If a received signal is slightly off frequency, the Delta-Tune control can be used to fine-tune your receiver. Fine tuning is accomplished by listening for a more readable signal at the speaker or by noting the Smeter reading when the Delta-Tune control is operated. Another use of this control is eliminating adjacent interference (bleed over from other channels). If an exceptionally high level signal from an adjacent channel is creating interference on the channel being used, the Delta-Tune can be used to minimize or eliminate the interference. Rotate the control until you obtain minimum adjacent channel interference. NOTE: Delta-Tune is operable only in the receive mode.

It doesn't actually help receive any better, just can help kinda like a clairifier.
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Hondarider
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Re: Delta Tune

Post by Hondarider » Thursday, 10 March 2011, 19:34 PM

Ah ok. Thanks. That makes sense. So for speradic cb talk on the road its pretty much no use? Unless im talking to Johnny for 5 hours straight?
Have a good one.
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Re: Delta Tune

Post by Nagant » Thursday, 10 March 2011, 19:45 PM

It's just a receive clarifier and therefore no it's not used often. It's only used if your listening to someone that is off frequency. The Delta Tune on straight AM radios is more of a throwback from the days when many radios were crystal controlled and therefore many were off frequency enough that the Delta Tune was useful.
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Re: Delta Tune

Post by Sporty Mike » Friday, 11 March 2011, 9:50 AM

The delta tune control on a cobra 29 gives you a good place to add either an echo board , or a variable power control , that's about it. 8)


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Night Crawler
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Re: Delta Tune

Post by Night Crawler » Friday, 11 March 2011, 10:33 AM

To unlock the delta tune for receive and transmit cut D18 if a 4.7uh inductor is added in series between D16 and ground it will vary the frequency by 10kc.

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Hondarider
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Re: Delta Tune

Post by Hondarider » Friday, 11 March 2011, 11:52 AM

Hmmm ok.
Thanks for the info.
Have a good one.
Hondarider




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