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Author Topic: Are 5KHz Tuning Step increments enough?  (Read 369 times)
RADIOHEAD
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Posts: 97




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« on: November 22, 2003, 09:52:01 PM »

I'm looking to get the Yaesu VX-7R. I'd also like to use it as a scanner from time to time, but the lowest tuning step it has starts at 5Khz. Is this good enough when monitoring frequencies like
460.5252 MHz?

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KE6PKJ
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Posts: 256




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« Reply #1 on: November 23, 2003, 01:09:27 PM »


The answer is both yes and no.

Yes, because the bandwidth of your I.F. is wide enough to allow the 2.5 Khz "off frequency" signal to be passed through.

No, because of the newer FCC rulings calling for +/- 2.5 Khz transmitter deviation instead of the standard +/- 5 Khz deviation. This means that when listening to the new sliver band rigs, (FRS radios for example) the audio is going to sound much weaker and you're going to hear more adjacent channel "bleed through". This  is caused by your 10 Khz wide filter in your I.F., which is overly wide for the new deviation scheme.
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