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Re: [TenTec] RF Speech Processor "TX IMD"

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] RF Speech Processor "TX IMD"
From: GARY HUBER <glhuber@msn.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 17 Jun 2013 10:57:54 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
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 transmitted signals. N4PY developed a mod which works well with the OMNI-VII, providing a real-time look at one's transmitted signal.

73 ES DX,
Gary -- AB9M

-----Original Message----- From: k6jek
Sent: Monday, June 17, 2013 10:33 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] RF Speech Processor "TX IMD"

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 RF in the audio, had audio distortion, and drifted, SSB signals had terrible opposite side band and carrier suppression, bad audio and drifted.
Splatter was common.
Harmonics radiation was common, broadcasting on several bands at once.

Spectrum displays are becoming common on high end radios. This may be a boon since others may tell you when your signal is bad. Of course they'll be wrong because they don't know the definition of bandwidth but they didn't know it fifty years ago either.

Jon



On Jun 17, 2013, at 12:14 AM, Charles P. Steinmetz wrote:

Rick wrote:

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 it as necessary, IS a lid. And yes, unfortunately, I know that I have just described 85% of all US hams. I would much prefer that those 85% had never been licensed, or had been required to learn and demonstrate genuine technical proficiency to become licensed (I don't care a whit about whether they know code).

IMO, we should get rid of the whole VE structure and go back to examinations by an FCC field engineer at an FCC field office using tests that have not been made public. Ideally, including some hands-on operation and troubleshooting. Putting testing in the hands of people who have an interest in how many new hams there are is the worst possible way to run things. Having a limited number of publicly-available test questions is a deplorable farce.

Best regards,

Charles




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