[Heathkit] SB-102 Low Output on SSB

[Jim Shorney]

Quite true, but I wasn't going to go there. :)

73

-Jim
NU0C


On Fri, 18 Aug 2017 20:39:50 +0000 (UTC), Glen Zook via Heathkit wrote:

>Unfortunately, also with "modern" equipment with processors, etc., a goodly number of operators turn up those so much that the amplifier stages "flat top", etc., and put out a lot of "splatter", "buckshot", etc., that cause interference all over the band!  Even with the "modern" equipment, it is best to keep the average power output, as read on a non-peak reading wattmeter of which most amateur radio wattmeters are of that type, to around 20% to 25% of what the output reading is in the tune up (full CW output) condition.  Otherwise, interference can, and usually does, happen.
>
> 
>
>Glen, K9STH 
>
>Website:  http://k9sth.net
>
>
>________________________________
>From: Jim Shorney <jshorney at inebraska.com>
>To: Glen Zook via Heathkit <heathkit at mailman.qth.net> 
>Sent: Friday, August 18, 2017 3:15 PM
>Subject: Re: [Heathkit] SB-102 Low Output on SSB
>
>
>
>
>Yes on both counts. Your TR-3 should reach near full rated output with a steady
>
>CW carrier. We have become so used to modern rigs with (over)processed and
>
>compressed audio that reads higher on the meter that many hams just don't
>
>realize that these vintage rigs have no processing whatsoever. You need a
>
>decent peak reading wattmeter or a scope to see your true peak output because
>
>the peak-to-average ratio of the unprocessed voice is high. If nothing else,
>
>you should be able to whistle it up to near peak output but under normal
>
>operating conditions an average reading wattmeter will read low with voice
>
>audio or keyed CW.
>
>
>You can get help and advice on your Drake via the Yahoo DrakRadio grouip.
>
>
>73
>
>
>-Jim
>
>NU0C

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