This is an extremely rare occasion where I do not fully agree with Bob. Government did not mandate that our receivers' 2kHz dynamic range increase from 65dB to 95dB but the OEMs have finally all give
OK. You need a page about this on your web site, with one of your world famous spread sheets (ala your tuner spec report) and that will be a start. I forget how many Arlo Guthrie says makes a "moveme
Actually, there is already a government mandated "clean transmitter standard." It's called "Sec. 97.307" (as in FCC Part 97) and is titled "Emission standards." Might an update of this section of Par
It is inadequate, Al. There are lots of transceivers that create a very broadband noise. The noise is adequately suppressed to meet the legal specs, but if you hang an amp on them, a neighbor a mile
Rick, You may have saved me a lot of money. I'm close to purchasing an amp, and I read your note below about "but if you hang an amp..." and I don't need a bunch of angry neighbors. :) Eric W9WLW Se
Rick, 97.307 doesn't specify which order IMD or what testing method; paragraph (d) just says "spurious emissions" must be at least 43 dB below fundamental (2003 on, pre-1978 products are exempt.) I i
There are many of these regulations that are really open to interpretation by the reader. What exactly is good amateur practice? I know how I was taught and as a broadcast engineer again the term "go
A technically clean radio meeting today's technical standards and one that is adjusted and operated correctly and it being used in front of an amp, again one that is clean and adjusted properly is ab
Well said Bob. The only thing I'd note is that in the broadcast industry "back then" (I was a small market AM chief and TV operating and maintenance engineer for a while) "good engineering practice"
As a broadcast engineer, tricks I was taught: ** Make sure the program logs are in a folder by month and each month is in the file cabinet by month order. ** Make sure the transmitter logs are in a f
Author: "Charles P. Steinmetz" <charles_steinmetz@lavabit.com>
Date: Mon, 17 Jun 2013 01:45:34 -0400
There are many of these regulations that are really open to interpretation by the reader. What exactly is good amateur practice? I know how I was taught and as a broadcast engineer again the term "go
Bob, You were measuring a good transceiver with a good and properly tuned amp. You should take a look at the combination FT-450 / ALS-500. There is nothing for the op to tune, except the mic gain. Yo
Author: "Charles P. Steinmetz" <charles_steinmetz@lavabit.com>
Date: Mon, 17 Jun 2013 03:14:31 -0400
Guys, I maintain there are a lot less lids and a lot more bad radios then you think! Any ham who takes for granted what his or her radio is doing, without measuring it him- or herself and correcting
Charles, What you have just defined would mean the end of ham radio. When SSB was still in the cradle, almost everyone operating that mode had a monitor scope to help tune his signal. The old ARRL SS
Author: "Charles P. Steinmetz" <charles_steinmetz@lavabit.com>
Date: Mon, 17 Jun 2013 06:11:03 -0400
What you have just defined would mean the end of ham radio. If so, then so be it -- but I'm confident that wouldn't happen. Hopefully, it *would* weed out most of the people who can't be bothered to
Charles, I don't agree with you on one point here. 95% of the hams were clueless when it came to RX dynamic range, yet we managed to get it improved. I refuse to believe that the OEMs were all good g
Correct, simply saying that adding an amp and it correctly tuned/adjusted would not cause interference issues. The use of the MIC gain or more correctly stated, the incorrect use of the mike gain, wi
I've been a ham since 1962 long before incentive licensing. There were plenty of terrible signals on the band back then. CW signals were raspy, chirpy, clicky, and drifty. AM signals were FMing, had
Those who have a SDR running PowerSDR or similar can use the panadapter and other functions to look at received signals and if optioned to receive during local transmit can also look at their OWN tra
The only fallacy to this method is that one needs to look at the transmitted signal several MHz away from the carrier frequency. A true Spectrum Analyzer is about the best method. My new spectrum ana