Re: IF frequency

On Sat, 28 Jan 2006 17:39:02 -0800, Peter Bennett
<peterbb@xxxxxxxxxxxxxxxxx> wrote:

>On 28 Jan 2006 11:03:06 -0800, "thejim" <papageorgiou40@xxxxxxxxxxx>
>wrote:
>
>>In an avionics book i read that the IF of a reiceiver is 29.05 Mhz.
>>How does that figure come out?
>>Does it come out by the difference between the incoming radio signal
>>and the Local oscillator frequency?
>>Am i saying it correctly?
>
>I think I would put it another way around: The designer of the radio
>chose to use 29.05 MHz as the IF, and designed the IF amplifiers to
>pass that frequency. The frequency that the receiver will receive is
>that IF frequency plus (or minus) the local oscillator frequency.

---
I think he stated it rather succinctly since the IF _is_ the
difference between the carrier and the LO, regardless of the
location, spectrally, of either the carrier or the LO.

--
John Fields
Professional Circuit Designer
.

Relevant Pages

  • Re: IF frequency
    ... >In an avionics book i read that the IF of a reiceiver is 29.05 Mhz. ... I think I would put it another way around: The designer of the radio ... that IF frequency plus the local oscillator frequency. ...
    (sci.electronics.basics)
  • Re: IF frequency
    ... >> In an avionics book i read that the IF of a reiceiver is 29.05 Mhz. ... >> and the Local oscillator frequency? ... Prev by Date: ...
    (sci.electronics.basics)
  • Re: IF frequency
    ... > In an avionics book i read that the IF of a reiceiver is 29.05 Mhz. ... > and the Local oscillator frequency? ... Prev by Date: ...
    (sci.electronics.basics)