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#1
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In article ,
Lawrence Rogers wrote: The instruction manual that comes with my brand new R75 talks about memory and VFO. I understand memory, but what is VFO? TIA, Larry Rogers Hilo This is just the ham-radio heritage of ICOM showing through. VFO is ham jargon, its the acronym for Variable Frequency Oscillator. Here, it means the same thing as Continuous Tuning. On the R75, the difference between memory & VFO modes becomes most important when you punch the SCAN button. In VFO mode, the frequency starts changing continuously, as if some internal motor were turning the tuning knob. Push SCAN in Memory mode, and the R75 starts jumping through the preset channels without covering any frequencies "between". -- R F Wieland Newark, DE 19711-5323 USA 39.68N 75.74W Icom R75 Heathkit GR-81 Inverted-L in the attic Reply to wieland at me dot udel dot edu |
#2
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Close - but not really "continuous tuning" like an analog tuned receiver.
For New Digital types like your R75 -- the VFO tuning is in selectable discrete steps i.e., from as low as 1 Hertz -- up to 100 kHz see -- page 12 and 13 of the ICOM Manual. Also a 1 MHz "Quick Tuning" increment can be used for fast tuning. And many mil and commercial rigs -- use the term VFO - so not an exclusive Ham term per se -- 73 From The Signal In The Noise Caveat Lector Ya All ==================== "Robert F Wieland" wrote in message ... In article , Lawrence Rogers wrote: The instruction manual that comes with my brand new R75 talks about memory and VFO. I understand memory, but what is VFO? TIA, Larry Rogers Hilo This is just the ham-radio heritage of ICOM showing through. VFO is ham jargon, its the acronym for Variable Frequency Oscillator. Here, it means the same thing as Continuous Tuning. On the R75, the difference between memory & VFO modes becomes most important when you punch the SCAN button. In VFO mode, the frequency starts changing continuously, as if some internal motor were turning the tuning knob. Push SCAN in Memory mode, and the R75 starts jumping through the preset channels without covering any frequencies "between". -- R F Wieland Newark, DE 19711-5323 USA 39.68N 75.74W Icom R75 Heathkit GR-81 Inverted-L in the attic Reply to wieland at me dot udel dot edu |
#3
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Caveat Lector wrote:
Close - but not really "continuous tuning" like an analog tuned receiver. For all practical purposes a tuning step of 1-Hz is continuous. This tuning rate is common on high end receivers. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#4
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For practical purposes -- yep u is right -
but technically -- it ain't continuous Just wanted poster to be aware that he/she cud change the tuning rate as the manual stated -- 73 From The Signal In The Noise Caveat Lector Ya All "starman" wrote in message ... Caveat Lector wrote: Close - but not really "continuous tuning" like an analog tuned receiver. For all practical purposes a tuning step of 1-Hz is continuous. This tuning rate is common on high end receivers. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#6
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If the NG's and all else fails -- Read Da Manual !!!
-- 73 From The Signal In The Noise Caveat Lector Ya All "RHF" wrote in message om... RFW, Hey I learned something new today: That the R75 has two scanning modes Continuous (Discrete) VFO Scanning; and Memmory Scanning. Time to Punch Some Bottons ! - - - And Let the Digital Display Do the Walking ![]() jftfoi ~ RHF . . = = = (Robert F Wieland) = = = wrote in message ... In article , Lawrence Rogers wrote: The instruction manual that comes with my brand new R75 talks about memory and VFO. I understand memory, but what is VFO? TIA, Larry Rogers Hilo This is just the ham-radio heritage of ICOM showing through. VFO is ham jargon, its the acronym for Variable Frequency Oscillator. Here, it means the same thing as Continuous Tuning. On the R75, the difference between memory & VFO modes becomes most important when you punch the SCAN button. In VFO mode, the frequency starts changing continuously, as if some internal motor were turning the tuning knob. Push SCAN in Memory mode, and the R75 starts jumping through the preset channels without covering any frequencies "between". |
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