I took my Flex-1500 down and found a few stations in the new band
tonight! First was WE2XGR/1 on 506.3 with a CW beacon. He was 579 and
would have been an easy QSO. Of course, there's currently no QRM! He's
located in FN42hi and I'm in FN04gc.
I also heard what sounded like someone calling CQ in JT65x. Can't tell
what mode for sure because I don't have WSJT installed on this computer
yet. He was on 497.5 kHz and had a strong signal.
Luckily the 600m band is above where the front end filter on my 1500
cuts out so I'm able to listen here without any trouble. Antenna is a
Wellbrook Loop sitting on the ground and currently leaning against my
landlord's garden shed. I'll be setting it up on a TV antenna tripod
(on the ground) with a rotor this weekend.
73,
Ken Alexander
VE3HLS
On 16/02/2012 1:32 PM, Lloyd Berg N9LB wrote:
All,
While the 1 watt to 5 watt power seems small, it really isn't because
the specification is Effective Radiated Power. An efficient dipole
antenna at this frequency would be about 1000 feet long, a 1/4 wave
vertical would be over 500 feet tall.
If you are running a 60 foot vertical ( requiring a huge matching
network ), your efficiency would only be a few percent, therefore your
transmitter power output would be somewhere around 100 watts.
That is still very low communications power, but quite suitable for CW
and some digital modes over 100's of miles - maybe more.
I plan to gear up for it and be ready to go on the first day operation
becomes legal. Yes I'll be using my FLEX-5000. Transmitting will
probably require some form of low frequency transverter. Receiving
might just require filtering and possibly a pre-amp.
I'm looking forward to exploring a whole new band!
73
Lloyd - N9LB
Message: 3
Date: Wed, 15 Feb 2012 12:55:14 -0800
From: " Robert Costa, KB6QXM " <kb6...@yahoo.com>
To: " Stephen Victor " <victo...@yahoo.com>, "
flexradio@flex-radio.biz " <flexradio@flex-radio.biz>
Subject: Re: [Flexradio] The new 472-479 kHz band
Message-ID: <648839.89845...@smtp217.mail.gq1.yahoo.com>
Content-Type: text/plain; charset=utf-8
1 watt maximum EIRP. Big deal.
Not too exciting news. I am glad to hear that we have some Medium
Frequency spectrum, but 1 watt output and the size of the antenna is
almost not worth the effort. The requirements remind me of the lowfer
band (160-190 khz) limitations.
This is almost part 15 output.
How about giving back the lower portion of the 220 band.
73,
Robert
KB6QXM
"Ham Radio Open Conversation"
Yahoo group owner/moderator
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