[CW] Two New Amateur Bands

[sbjohnston at aol.com]

Ron -

You mentioned short antenna requirements...  The antennas need not be short physically but they tend to be short in terms of wavelength so matching is important.  Performance can be pretty good - remember that ships used to use this band and they had wire antennas strung between two masts or a fairly short vertical with transmitters of fairly low power.  You can't have a very big antenna on a ship.

I wrote an article on this topic a year or so ago... it seeks to answer the question "Is 630 Meters Practical for Hams?"

http://www.wd8das.net/630mPractical.pdf

I was running less than 1 watt EIRP to a wire antenna on a suburban lot.



Steve WD8DAS

sbjohnston at aol.com
http://www.wd8das.net/
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-----Original Message-----
From: Ron Youvan <ka4inm at gmail.com>
To: CW Reflector <cw at mailman.qth.net>
Sent: Fri, Mar 31, 2017 10:08 pm
Subject: Re: [CW] Two New Amateur Bands

OM  Rolfe W1VC Tessem wrote:

> I ask this question in all naivety -- what can you realistically do with
> 5 watts on 600 meters?

   I have heard that the short antenna requirements demand something
like a kW to get the permitted maximum equivalent isotropically
radiated power (EIRP) of 5 W.  (the 6L6s are out of the running)
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.
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=30=

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