The shift control should provide the same passband carrier point regardless
of the filter used although occasionally I need to adjust it slightly when
going from 250Hz to 500Hz when using RTTY. It shouldn't be an issue for CW.
I gererally leave the control centered for 250Hz and 500Hz operation. The
passband frequency can be checked with the calibrator signal. It only
provides a few clicks of adjustment before the signal is excessively
attenuated.
The bandwidth control when used with the 250 Hz filters only provide a
couple clicks of adjustment at the extreme clockwise rotation of the
control. I usually leave it fully clockwise in this position. It's
slightly more flexible on the 500Hz position but generally if I need
additional selectivity at 500Hz I will switch to the narrower filter.
In summary the width control only provides a few clicks of adjustment from
full clockwise with the narrower filters. The shift control only provides a
few clicks of adjustment around center. This charecteristic is typical with
every radio I have used with these features.
My FT-1000 is an older one (1992). It's too much trouble to pull the radio
out to find the serial.
All in all a great radio. Certainly destined to become a classic.
--W8KX
>
>I've recently purchased a new FT-1000D. I believe that my radio has a
>problem, although Yaesu (through the dealer) insists that it is just
>a "characteristic" of the radio and nothing is wrong. I would
>therefore be most grateful to receive comments from all of you who
>are experienced in using this fine radio.
>
>I expect to be able to obtain the highest possible selectivity by
>choosing the narrowest 250 Hertz Bandwidth and then by adjusting the
>"Shift" and "Width" controls so that everything is narrowed down as
>much as possible. After settting the "Shift" and "Width" controls
>for optimum 250 Hertz selectivity, I expect to be able to INCREASE
>the bandwdth WITHOUT needing to re-adjust the "Shift" or "Width"
>controls.
>
>What actually happens is that if I increase the bandwidth from 250 Hz
>to 500 Hz, I must completely and radically change the settings of the
>"Shift" and "Width" controls. Without resetting these controls,
>NOTHING at all is received. I'm not talking about a minor touchup,
>but completely different settings. If, however, I change from 250 Hz
>to 2 KHz or 2.4 KHz, everything appears normal - there is no need to
>change the "Shift" and "Width" settings. In summary, the 250 Hz, 2
>KHz, & 2.4 KHz bandwidths function as I expect, but the 500 Hz
>bandwidth does not. It requires unique adjustments of the "Shift" and
>Width" controls.
>
>Please let me know if you have experienced "characteristics" like I've
>mentioned, or not. If it is not too much trouble to include the
>serial number of the receiver, that could be helpful in trying to put
>some statistics together (mine is S/N 8J540016).
>
>Thanks & 73
>
>de Riki, 4X4NJ
>
>
>
>
>
>
>
>--
>FAQ on WWW: http://www.contesting.com/topband.html
>Submissions: topband@contesting.com
>Administrative requests: topband-REQUEST@contesting.com
>Problems: owner-topband@contesting.com
>
>--
>FAQ on WWW: http://www.qsl.net/k7on/yaesu.html
>Submissions: yaesu@contesting.com
>Administrative requests: yaesu-REQUEST@contesting.com
>Problems: owner-yaesu@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
>
>
--
FAQ on WWW: http://www.qsl.net/k7on/yaesu.html
Submissions: yaesu@contesting.com
Administrative requests: yaesu-REQUEST@contesting.com
Problems: owner-yaesu@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|