[CQ-Contest] signal quality...was 10m

Ron D. Rossi rrossi at btv.ibm.com
Wed Dec 15 10:25:23 EST 1999


Please tell me if my signal stinks! I want to be as loud as I can be with a 
good clean signal and clear punchy audio.

During SS Phone someone clued me in about my audio not being clean. The 
comment was that I was much wider than I should have been for a TS-850. Hey I 
have a 2.1KHz filter in line on TX...how wide can I be. I was able to make 
some quick adjustments to help, but it prompted me to really look into it 
aftet the contest. I found two issues 1) the power out was adjusted for 125W 
on keydown 2) RF getting in on the packet audio input I use for my voice keyer.

The 850 runs with 12V finals, so there is not much room to generate a linear 
signal above 100W. I went through the steps to adjust that back to 90-100W. I 
also added a 0.01uF cap across the aux mic input to squelch the RF there. The 
rig, according to the regular chat group on 10m, sounds "the best I have ever 
sounded". The folks 2 miles away like the audio. The folks at the groundwave 
limits tell me I am as "loud" as I ever was.

73 de KK1L...ron (kk1l at arrl.net) <><
QTH: Jericho, Vermont
My page: http://www.qsl.net/kk1l

CQ-Contest on WWW:        http://www.contesting.com/_cq-contest/
Administrative requests:  cq-contest-REQUEST at contesting.com

More information about the CQ-Contest mailing list