Please folks, the Heros VLF converter is vastly more sophisticated than the
lower priced units with limited filtering from Palomar (which I own) or
Jackson Harbor or the others. The Heros is very fairly priced.
Still, most of us will NOT benefit from the Heros unless we're in an area of
very
wouldn't the pre-selector help with selectivity issues on the
general coverage of the Flex?
What problem are you having that you think a preselector will help with?
Lots of hams read about a preselector's gain and think DX will be 20 dB more
copyable. THAT's certainly not going to happen. As
My Flex-5000 is utterly deaf below the U.S. AM broadcast band. Can't even
pick up
local airport Non-Directional Beacons.
But I do some longwave listening with my old Kenwood TS-850/HF vertical and
often
hear European AM broadcast stations in the 150-200 kHz range even from my
QTH in
Missouri.
.
Jeff
K0OD
From: Ken Alexander [mailto:k.alexan...@rogers.com]
Sent: Sunday, February 19, 2012 9:32 AM
To: Jeff Singer; flexradio@flex-radio.biz
Subject: Re: [Flexradio] The new 472-479 kHz band - REAL DX
I'm surprised the Flex-5000 is so deaf. My 1500 receives perfectly well
The amended 60-meter regs go into effect on March 5. We're going to need
PSDR changes by then to permit CW, the allowed digital modes and the change
to Channel 3.
http://www.arrl.org/news/new-rules-for-5-mhz-60-meters-to-go-into-effect-mar
ch-5
Jeff
K0OD
The annoying CW sidetone squelch tail heard by the operator on several
bands, especially six meters, remains a significant flaw that can even be
seen on the radio's scope. Flex has acknowledged that a problem exits.
I could not be more thrilled with the new beta Tracking Notch Filter, but
Flex
Has anyone accurately measured the minimum output power of a Flex-5000?
Using my ancient Autek WM-1 swr/power meter I see a bit under one watt with
the Flex drive slider set to 1 (it goes to no output when set to 0). The
Flex's own meter shows one watt. That's on 40-meter CW into a 1.0:1 SWR.
Tough FMT. I was having trouble calibrating my 5000 to my satisfaction
before the test and bailed out of participating.
Had something else to do that was pretty important.
Just saw the results and it appears that Doppler was terrible which probably
explains my calibration problem. Scores were
ARRL FMT tonight Tuesday April 12 (USA time)
http://www.arrl.org/news/arrl-frequency-measuring-test-scheduled-for-tuesday
-april-12
Also http://www.k5cm.com/
Your Flex, with no outboard equipment, is adequate to do a respectable job
in the FMT
Jeff K0OD
First, understand that very few countries allow ham operation on 60-meters
and, even then, rules vary wildly. Operation isn't channelized in some
countries. Where it is channelized, the frequencies aren't standardized.
5403.5 MHz is the main DX channel because most counties can use it.
On
Results are out at www.k5cm.com . From my limited experience, the K5CM FMTs
attract the real experts. Competition is a bit easier in the ARRL events.
Another nice showing by the Flex contingent.
Jeff K0OD
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FlexRadio Systems Mailing List
I used only the Flex-5000 and its scope no fancy outboard frequency
standard or software. Several signals seemed quite spongy probably due to
Doppler. I had little confidence in any of my readings, which was quite
frustrating.
I didn't get home from work in time for the two 20 meter runs.
Gee, doesn't ANYONE know what those three numbers are useful for?
One member told me by direct email that he thought they served no function.
Could that be right? I skimmed the entire F5K manual twice and found nothing
about them.
Jeff K0OD
___
On the bottom right of the main display in most modes appear three numbers
that I can't find explained in the Flex-5000's manual or elsewhere. The
numbers are, as I eventually figured out, the frequency of the loudest
signal on the display, its strength in dBm and its offset from the radio's
Thanks for the alert on the K5CM Frequency Measuring Test a few nights ago.
That test uses two stations to send a CW carrier on 160, 80 (twice) and 40
meters. A FMT is something totally new to me. My only preparation was to
calibrate the radio carefully against WWV using its built-in scope. My
I now see that the drop outs occur when I tune using the
Ctrl + Up/Down Arrow method as well. So it's not a mouse problem.
With N1MM running the Flex can't keep up with anything but the
slowest tuning, generally the 1Hz Tune Step
---
Mouse Dropouts (not
Mouse Dropouts (not mouse droppings!) with N1MM
I'm setting up the N1MM Contest Logger with my new Flex-5000A
(windows XP home, loaded AMD quad core and latest Flex
firmware/PSDR) via K5VR's VSP port manager software.
Radio reads N1MM. The Flex follows keyboard up/down arrows
and bands I
I'm using a month-old Flex 5000A with a clean new computer that employs
AMD quad core 3.21 gHz processor and 2.75 gb of RAM.
CPU usage starts off around 10% after the computer and Flex are booted
but gradually rises to about 30% after about 4 minutes and remains around
that level. Nothing else
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