Relax, take a look at this medicine it will fix you on the spot, it's Panexa the Miracle Drug.
< http://www.panexa.com/ > Relax, you are getting sleepy, sleepy......sleepy At 01:17 PM 6/15/2006, Radio Station W5AMI wrote: >Hey, several have said on this thread "50uV at the antenna" okay? >That was what I was trying to clarify and point out in my message. >50uV at the antenna will NOT be 50uV at the back of the rig no matter >what you do! > >On 6/15/06, KD5NWA <[EMAIL PROTECTED]> wrote: >>It's 50 uV at the receiver antenna terminal, not at the antenna, all >>that stuff doesn't matter. >> >>At 01:01 PM 6/15/2006, you wrote: >> >It's all pretty arbitrary I suppose. In reality, it is not measuring >> >the RF voltage at the antenna since we calibrate the S-meter directly >> >on the input of the SDR1K with 50uV. 50uV collected at the aerial in >> >most cases will be reduced by losses in the feed line, tuner, amp >> >relays, and anything else between the aerial and input to the rig, >> >particularly on the higher freqs. >> > >> >If there were a way to inject 50uV of RF to the aerial, that would be >> >the way to calibrate the S-Meter for voltage at the antenna. >> > >> >But really, who cares ;) I've always looked at an S-Meter as a >> >"relative" indicator anyway. I can live with it the way it is and >> >continue to love the SDR1K as I do. Hi HI.... >> > >> >This was just a thought, and IMHO, as valid one depending on how you >> >"think" an S-meter should behave! >> > >> >73 >> >w5ami >> > >> > >> >On 6/15/06, KD5NWA <[EMAIL PROTECTED]> wrote: >> >>You are comparing apples and oranges the amplifier you are talking >> >>about is inside the meter, it should be adjusted to read the same >> >>because the voltage at the terminals has not changed. >> >> >> >> >> >>At 12:40 PM 6/15/2006, you wrote: >> >> >On 6/15/06, Mike Naruta <[EMAIL PROTECTED]> wrote: >> >> >>Brian, if I use my digital volt meter to measure a >> >> >>voltage and I switch scales to read a low voltage, >> >> >>it compensates for the added gain and shows the >> >> >>actual value, not a higher voltage. >> >> > >> >> >True Mike, but if you boost that voltage, let's say with a transformer >> >> >(in this topic the pre-amp), don't you want to be able to measure that >> >> >voltage too? The radio knows the boost took place, however you only >> >> >_hear_ or sense the effect the way it is now. >> >> > >> >> >Thanks for the input Mike... >> >> > >> >> >73 >> >> > >> >> > >> >> >> >> >> >>KD5NWA wrote: >> >> >> > The S-Meter reading is supposed to be how strong the signal is at >> >> >> > your receiver antenna terminal. So it should not change any as you >> >> >> > change the pre-amp settings within that radio, because the signal at >> >> >> > the antenna terminal has not changed. >> >> >> > >> >> >> > If you make it change with the pre-amp setting the number >> >> >> becomes meaningless. >> >> >> > >> >> >> > With a UHF system you have basically two radios the UHF >> front end and >> >> >> > your IF radio, the S-meter will change as you change the pre-amp on >> >> >> > the UHF rig because the signal at the HF IF radio is >> changing so it's >> >> >> > S-Meter shows that change in input signals. >> >> >> > >> >> >> > >> >> >> >> >> >>_______________________________________________ >> >> >>FlexRadio mailing list >> >> >>FlexRadio@flex-radio.biz >> >> >>http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >> >> >>Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >> >> >>FlexRadio Homepage: http://www.flex-radio.com >> >> > >> >> > >> >> >-- >> >> >"There is nothing more uncommon than common sense." -- Frank >> Lloyd Wright >> >> >> >> >> >>Cecil Bayona >> >>KD5NWA >> >>www.qrpradio.com >> >> >> >>"Windows, the most successful software virus ever" Don Seglio Batuna >> >> >> >> >> >> >> >>_______________________________________________ >> >>FlexRadio mailing list >> >>FlexRadio@flex-radio.biz >> >>http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >> >>Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >> >>FlexRadio Homepage: http://www.flex-radio.com >> > >> > >> >-- >> >"There is nothing more uncommon than common sense." -- Frank Lloyd Wright >> >> >>Cecil Bayona >>KD5NWA >>www.qrpradio.com >> >>"Windows, the most successful software virus ever" Don Seglio Batuna >> >> > > >-- >"There is nothing more uncommon than common sense." -- Frank Lloyd Wright Cecil Bayona KD5NWA www.qrpradio.com "Windows, the most successful software virus ever" Don Seglio Batuna _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
