On 5/22/2013 9:52 AM, Rick - DJ0IP / NJ0IP wrote:
When I win the lottery Ray, I'll buy you one too.
I have no idea if this would even happen in the states.
_________________________________________________
Yes, but from a slightly different source.
Some HF receivers in some locations have problems
with nearby AM BCB stations which swamp or
desense the receiver on HF frequencies.
SWLs and hams both have this problem if they
live too close to the AM BCB antenna, and sometimes
a nearby ham on HF with QRO can cause problems.
I take it from JH's explanation that the AM BCB
filter placed early in the receiver circuit handles
this problem right out of the chute, allowing the
rest of the receiver sections to function free of it.
So, perhaps a slightly different cause, but
the same solution.
I have been fortunate not to live too close to
any AM BCB stations - but I know many SWLs who do,
and it is a really difficult problem for many
of them, because so many affordable SWL receivers
do not have this type of protection. I think
that is where MFJ makes its money selling
preselectors and such.
Just MY take.
------------------------ K8JHR -------------------
You don't have the problem with shortwave broadcast stations that we have
here in Europe.
Sure, you can hear the carriers from some of them, but they're pegging the
S-Meter over here.
Also it has gotten a lot better since I ran that test 6 years ago.
Most of the shortwave broadcast stations have now moved out of the 40m band,
and we have gained another 100 kHz of band.
Our band used to end at 7.100, now it goes up to 7.200.
In addition, it was very dependent on which way the beam was pointed.
If the beam was pointing between northeast and southeast, all of the radios
were crunched except the Orion's first RX and even the Orion began to hear
the phantoms on its first RX, but they were weak.
If we rotated it towards the west the Orion's first RX was completely clean.
The others were still crunched.
I guess you just have to operate from this side of the pond to believe it.
73
Rick, DJ0IP
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of
Rsoifer@aol.com
Sent: Tuesday, May 21, 2013 7:39 PM
To: tentec@contesting.com; ac5aa@ac5aa.com
Subject: Re: [TenTec] RX366
Judging from some of the comments, I must be fortunate to live in an area
with no strong local signals. The only times when either receiver in my
Orion II folds are when the hardware noise blanker is on. When I turn it
off, the receiver comes back. I wish I had that 3 element 40m beam up 105
feet, though ;-)
73 Ray W2RS
In a message dated 5/21/2013 12:46:01 A.M. GMT Standard Time,
k8mn@frontiernet.net writes:
That's the way I use the sub-receiver as well. I have a local friend who
bought the OII with the 366 installed and, after having listened to it a
number of times, I can't see a reason to purchase it.
73,
Dave Heil K8MN
On 5/20/2013 23 32, Duane Calvin wrote:
Sounds like you got it right, Ray. I have a slightly different view.
I find the stock subRX to be fine for DXing because I use the MainRX
to
listen
to the DX. After all, he's the one getting clobbered by the cops,
tuner-uppers, QRMers, etc. The SubRX is great for finding who's
calling
him
and where the pileup is. Any more, it seems the worst place to call
is
on
top of the last worked station because you and 20 others are in that
same spot. The SubRX is great for lining up the Transmit VFO in the
pileup, I find.
For what it's worth - we all do it our own way!
73, Duane
Duane Calvin, AC5AA
Austin, Texas
www.ac5aa.com
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