Greg,
Yes, that's correct. Thanks for the fix. Been a long week.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-Original Message-
From: Greg - ZL3IX
Sent: Saturday, December 31, 2011 1:29 AM
To: topband@contesting.com
Subject: Re: Topband: BAD OT:Phase noise *** RE: digital on
Jeff, I suspect that you mean modern day synthesisers rather than
specifically DDS. Actually, the DDS itself has quite low phase noise,
better than -130 dBc/Hz with Analog Devices chips, especially if the
internal multiplying PLL is not used in the reference path.
73, Greg. ZL3IX
On 2011-12-
Amidon is selling cut to length for $0.70 per foot. Postage and handling
extra.
On Fri, Dec 30, 2011 at 10:32 PM, Price Smith wrote:
> If anyone is in need of Teflon Tubing, I have some in #11 and #12 size.
> That
> is the inside diameter.
>
>
>
> If someone needs some, I will give you a good b
Phase noise is generated by the rig's LO and exists as a more broad band low
level signal. Issue is more significant with modern day DDS than with older
analog-type VFO sources. Guys who operate field day can relate...
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-Original Message
Don't you mean IMD from the radio/amp driven past ALC?
CW is a binary signal and no one complains of its "phase noise" .
Mike KC7NOA
> From: n...@comcast.net
> To: wa3...@comcast.net; topband@contesting.com
> Date: Fri, 30 Dec 2011 22:59:09 -0500
> Subject: Re: Topband: digital on 1838 +/-
Hope not to get off topic for TB. The primary reason there is no digital
at the bottom end of 6 meters is that it is not legal in the
US. 50.000-50.100 is CW only. I am sure there would be a huge outcry if
it was legal down there.
I operate JT65 on VHF EME but, (aside from some tests back in
On 12/30/2011 7:59 PM, n4is wrote:
> That is not the case on weak signal bands, and in special 6m, digital modes
> are above 50.250 MHz, there is a clear reason for that, digital is not a
> narrow mode, there are phase noises that can trash the band.
Digital signals of various types have no mor
-Original Message-
From: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com] On
Behalf Of wa3...@comcast.net
Sent: Friday, December 30, 2011 10:47 PM
To: topband@contesting.com
Subject: Re: Topband: digital on 1838 +/-
Jim
>>>Consider this however, CW and digital mo
Tree,
Thanks for clarifying your position... like many I dont want to be censored and
I promise not to assisanate too many characters.
First of all I love CW.. I was a navy radioman and I enjoy CW going to it first
before other modes ... even though my speed sucks these day due to hearing
If anyone is in need of Teflon Tubing, I have some in #11 and #12 size. That
is the inside diameter.
If someone needs some, I will give you a good bargain. 5 feet for US$10.00
post- paid and US$14.00
post-paid for DX.
Please contact me at w0ri...@sbcglobal.net for the details.
73
K5AF lives in San Antonio on a 75' x 100' corner lot. His general purpose
antenna is a tuned doublet that starts at the corner light post and goes
across his roof to a neighbor's tree in the opposite corner. His highest
tree is 40', all of them having been fresh-planted 5' saplings when he
moved
As requested.
Parts:
http://thewireman.com/wirep.html#631#635 Double polyimide insulated
#14 AWG, 15 feet.
https://www.amidoncorp.com/categories/15 #12 AWG standard wall teflon
tubing, 15 feet.
https://www.amidoncorp.com/items/26 T300A-2 #2 material powdered iron
toroid.
You can also
System similar to what you mentioned regarding the gain
compensation/distribution, HPF/BPFs, RX overload, PTT, and
additional signal path sources and output routing (incl. looping
back): http://no3m.net/index.php?page=signal-processor
Has an on-board embedded MPU, but a header can be used w/
s
On 12/30/2011 04:14 PM, Jim Brown wrote:
> On 12/30/2011 9:14 AM, Joe Subich, W4TV wrote:
>> Most JT65 activity is relatively low power - typically between 10 and
>> 50 watts on HF.
>
> Yes, but if I were trying to work a difficult path like EU on 160M from
> here in W6, I would be running as much
> Thor's very informative post about the far more limited spectrum on
> 160M in his country was also quite helpful, and it helped a lot in
> understanding his concerns. This is the sort of information that I'd
> love to see collected for ALL countries on a website. I'd be happy
> to post it on min
On 12/30/2011 9:14 AM, Joe Subich, W4TV wrote:
> Most JT65 activity is relatively low power - typically between 10 and
> 50 watts on HF.
Yes, but if I were trying to work a difficult path like EU on 160M from
here in W6, I would be running as much power as I thought my power amp
could safely han
Interlocked switches should not be necessary for receive applications.
If by interlocked you're looking for a way to deselect one antenna
when selecting the next, check K1TTT's web site. Dave had a push
button controller that would release previously selected antennas
when making a new selection.
- Original Message -
From: "Brian Moran"
Here's one that works for TX & Rx.
http://www.qsl.net/k5lxp/projects/CoaxSwitch/CoaxSwitch.html With lockout,
etc. A homebrew version of the '6 pack' kind of box from array solutions. I
have the Array Solutions one, and it works great.
- Brian N
Here's one that works for TX & Rx.
http://www.qsl.net/k5lxp/projects/CoaxSwitch/CoaxSwitch.html With lockout, etc.
A homebrew version of the '6 pack' kind of box from array solutions. I have the
Array Solutions one, and it works great.
I have built a small one for RX only that uses SMD relays,
Jon, you're only about 300 miles NE of me, and things weren't that
good here. I did hear KH2/N2NL via the LP here, but he was tough copy
with deep QSB. I kept switching between north and south, but he was
consistently stronger from the south. I did work VK3IO, but he was not
great copy and
While many were hearing XU7ACY via long path yesterday morning, I heard
stations to the west and south working JAs which I could not hear. I'd be
interested in knowing if they too were worked via long path or direct.
I listened both ways and while XU7 had a very copyable signal here, there was
On 12/30/2011 11:22 AM, David Michael Gaytko // WD4KPD wrote:
> almost every night and especially on weekends/holidays, there is alot
> of activity on 1838/usb. some qrm from psk/other but they usually are
> far enough from the center freq not to be a problem (not always, the
> jt program only sho
Topbanders,
Re: the recent discussion of antenna switches and the AY Technologies
RAS-8x2 -- yes, production has been suspended while I work on my "real job"
which now involves starting a new company (www.rfti.com for those who might
be interested).
I have only today started a conversation wit
Ditto here, only LY7M and that was not strong at all. Been quiet this
season. I could just barely hear the V5/DJ DXpedition, but no way I was
getting through that pileup.
Mark Lunday, WD4ELG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
Let me applaud David for his post. This in informative - relevant to
160 meters and does not get into the emotional area that I was trying
to "nip in the bud" with my previous post. It should be noted that
some people took offense at my position and even at least one
unsubscribed from this list b
almost every night and especially on weekends/holidays, there is alot of
activity on 1838/usb. some qrm from psk/other but they usually are far
enough from the center freq not to be a problem (not always, the jt
program only shows +/-1kc on the waterfall. do wish they would give at
least .500kc
Yes, Quite a morning on 160! I heard XU7ACY via LP (on 213? Beverage) here
in SNH for the 1st time. I called him a few times but no QSO. Gone at my
exact sunrise. Quite a thrill just the same.
Cheers, Dick, W1ZC
___
UR RST IS ... ... ..9 QSB QSB - h
On Fri, 2011-12-30 at 15:15 +, Dave G4GED wrote:
> - Original Message -
> Got a note from Gary K9AY, he says no time to make the RAS8x2 switches, real
> work is too busy. So I suspect until Gary can make more they are not
> available.
> Dave Anderson, K4SV
> ---
Any series resistance or inductance will slow the incoming wave down and
increase the tilt and the length where it reverses direction can be
calculated since a 50% VF is the crossover point. A Beverage by definition
is a slow wave antenna.
I use 2 types of military telephone wire for 5 reversib
Ha ! Ray,
>From NH I heard EU stations but with a stealth condo endfed and K1 QRP rig
I may as well have been in W6 land :-)
However, hope springs eternal,
and for some totally unexplainable reason, I made
a (confirmed) contact with NH7O the other night
and am still on a tremendous high from
- Original Message -
Got a note from Gary K9AY, he says no time to make the RAS8x2 switches, real
work is too busy. So I suspect until Gary can make more they are not
available.
Dave Anderson, K4SV
--
That's a pity, I was just about
I knew the morning was going to be good when VK3ZL answered my CQ and was
569. . .he was running 50w. 73. . .Dave, W0FLS
- Original Message -
From: "Jon Zaimes AA1K"
To:
Sent: Friday, December 30, 2011 7:08 AM
Subject: Topband: Another good LP day on Top
> The December Do
DU and BU were 559 or better here in Maine this morning. That is by
far the best I have ever heard either of them.
Unfortunately I made no contacts as I only had brief moments free
of devastating QRM from a neighbor's furnace. Topband (and for that
matter every other band up through 6 meters a
Congrats Jon on DU. Still hopeful for Bu2AQ. Exciting. Man, was Peter
loud yesterday and very readable today too. 73 and HNY my friend. Bob K3UL
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
The December Doldrums are officially over.
For the second day we had good long path/skewed path conditions in the
pre-dawn hours.
This morning's excitement started with VK3IO (579) calling in at 1018z
and VK3ZL (599!) at 1037z. Often when the VK's are this loud it's a sign
the band will be poo
Yes, superb condx. Called cq for abt 3hours, many RBN-spots from NA over
30db.
15 NA in the log. Guess lot`s of folk have free from job.
kh2/n2nl works 60-70 EU in 1hour...LA is not KH2, but it may display
something.
NA: little less conversation (on reflector) little more action! Remember
it
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