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September 27th 04, 08:04 PM

(Len Over 21) wrote in message ...
In article , PAMNO
(always write even when wrong) writes:

In article ,
(Brian Kelly) writes:

Whatever you say. You can imagine getting within 10 Hz of the
correct frequency with the '50s designs all you want...but that
won't make it happen.

What?? Where, exactly, has anybody claimed 10Hz frequency resolution
with '50s analog radios?

Creative PLL and DDS subsystems of today, designed by others,
make it possible for anyone to select 10 Hz increments on any
HF band (30,000 frequencies within 300 KHz) with crystal-
controlled accuracy.

Analog VFOs are continuously variable. Making it possible for anyone
to select an *infinite* number of "increments" within a 300Hz
bandwidth much less your coarse 300 Khz wide example. And they do it
without generating any phase noise or other forms of crud synthesizers
toss out.

But "synthesized?" No. Far from it. All heterodyning on the analog
level. Not a PLL, not a Fractional-N, not a DDS in any of them.

He wasn't alone. B&W came out with their 6100 transmitter and it was a flop.
The synthesizer feature in it was neat but nobody wanted to pay $700 for one
when they could have a Collins or Drake for the same or less.

Straight out of the 1950s ham catalogs bub . . all of it.

There are "experts" whose entire experience is leafing through
catalogs.

My FT-847, which is not much as ham xcvrs go, can be tuned in 1 Hz
increments vs. the "make it possible for anyone to select 10 Hz
increments" thingey you cite above. You obviously need to spend
considerable time leafing thru the ham catalogs to get up to speed on
the equipment we use before you spout off and continue to goose up
your "coefficient of ignornace" on the subject of ham radio in general
and the equipment we use. Again. Gets boring.

Then there are the few "drudges" (like myself) who've
gotten our hands dirty doing the design and testing of synthesizers.

Then there are drudges like me who have ham licenses and and put
technoligies to work on the airwaves whilst all you're allowed to do
is bafflegab about 'em with your keyboard.