[CW] Receiver RF Gain
bill K7WXW
K7WXW at qrpdx.org
Tue Oct 30 11:21:12 EDT 2018
GM Bill,
Don't beat yourself up... lots of us newer hams don't have elmers unless
you count youtube. I could get started on a whole rant about the decline
of mentoring and community but I won't...
I "discovered" the value of reducing RF gain when I started using the
attenuator on an FT1000D to reduce the noise during the blank moments in
local HF nets. All of a sudden I could hear weak stations, too! Now, I
use the it and the RF gain knob quite liberally. Then I started
adjusting the IF bandpass knob, too, and things often got a little better.
Who knew there was actually a reason for all those adjustments on my
rig! ;) And, yes, I am little embarrassed to admit I didn't figure this
out sooner. After all, reception is all about signal to noise ratio and
I was, a long time ago, an engineer and allegedly know such stuff.
73 de bill K7WXW
______________
brevity is beautiful.
>>
>> -----Original Message-----
>> From: Ron.K3PID <ron.k3pid at sbcglobal.net>
>> To: CW <CW at mailman.qth.net>
>> Sent: Mon, Oct 29, 2018 7:55 pm
>> Subject: [CW] Receiver RF Gain
>>
>> I noticed an article in QST explaining that it is better to run a lower
>> RF gain on your receiver for weak signals and in noisy conditions. WOW!
>> I am thinking that those of us who are seasoned enough to be Elmers must
>> have really fallen down on the job. Just the idea that someone needed
>> to write that article is an indication that we failed to pass on the
>> basic operating skills. My Elmer taught me ( and a lot of others) to run
>> with a relatively high audio gain and then back off the RF gain to drop
>> the noise. It works welll and I’ve been doing it that way for 57 years.
>> It works on my computerized Yaesu and just as well on my R-390 or my
>> HQ-180. I just assumed it was common practice.
>>
>> 73
>> Ron K3PID
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/cw/attachments/20181030/c349cb1f/attachment-0001.html>
More information about the CW
mailing list