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CX2SA > SATDIG 20.02.17 04:25l 875 Lines 29312 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. (no subject) (Dale Kubichek)
2. Re: (no subject) (Dave Webb KB1PVH)
3. Bias Tee was (no subject) (Mike Seguin)
4. Re: Antennas (Norm n3ykf)
5. Re: Bias Tee was (no subject) (kk0sd1@xxx.xxxx
6. Re: (no subject) (Selwyn Cathcart)
7. Re: (no subject) (Greg D)
8. Preamps (Fred Castello)
9. Re: (no subject) (Dale Kubichek)
10. Re: NAYIF-1 TLEs (Wouter Weggelaar)
11. Re: Antennas (Joe)
12. Re: Antennas (Jerry Buxton)
----------------------------------------------------------------------
Message: 1
Date: Sun, 19 Feb 2017 17:33:26 +0000 (UTC)
From: Dale Kubichek <n6jsx@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Cc: "n8hm@xxxx.xxxx <n8hm@xxxx.xxx>
Subject: [amsat-bb] (no subject)
Message-ID: <1564682222.499763.1487525606491@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
These are very good devices (lil pricey), but an issue I found is they do
not sell the shack-coax-end 'voltage input/isolation' box/device to power
these via coax.
Just like I'd like to find a solid low-loss on-mast two-position-coax-switch
to be controlled via ~12VDC from the shack coax. Making changing CP or
Vet/Horz easy with only one coax feed. I want them for 2m/70cm/1.2G. MFJ has
one but it's not rated for >150MHz.
?Best regards,??
Dale Kubichek, MS-EET, N6JSX
Sidney, OH 45365? EN70vh
http://groups.yahoo.com/group/HAM-SATs
http://groups.yahoo.com/group/RDF-USA
Message: 2
Date: Sat, 18 Feb 2017 20:34:38 -0500
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Advanced Receiver Research has the most cost effective mast-mounted RF
switched preamps.
http://advancedreceiver.com/page10.html
SSB Electronics' line of preamps might be better, but are more expensive.
http://www.ssbusa.com/NEWSSBPREAMPS.html
73,
Paul, N8HM
------------------------------
Message: 2
Date: Sun, 19 Feb 2017 12:39:39 -0500
From: Dave Webb KB1PVH <kb1pvh@xxxxx.xxx>
To: AMSAT -BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] (no subject)
Message-ID:
<CAEMY9FdVdd8uMM+rpfqs7fAZ6raeL46v1z3Fz=TDG9r+5O7pMQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Kuby,
You mean something like this to power them?
http://www.advancedreceiver.com/page26.html
Dave-KB1PVH
Sent from my Galaxy S7
On Feb 19, 2017 12:34 PM, "Dale Kubichek via AMSAT-BB" <amsat-bb@xxxxx.xxx>
wrote:
> These are very good devices (lil pricey), but an issue I found is they do
> not sell the shack-coax-end 'voltage input/isolation' box/device to power
> these via coax.
> Just like I'd like to find a solid low-loss on-mast
> two-position-coax-switch to be controlled via ~12VDC from the shack coax.
> Making changing CP or Vet/Horz easy with only one coax feed. I want them
> for 2m/70cm/1.2G. MFJ has one but it's not rated for >150MHz.
> Best regards,
> Dale Kubichek, MS-EET, N6JSX
> Sidney, OH 45365 EN70vh
>
> http://groups.yahoo.com/group/HAM-SATs
> http://groups.yahoo.com/group/RDF-USA
> Message: 2
> Date: Sat, 18 Feb 2017 20:34:38 -0500
> From: Paul Stoetzer <n8hm@xxxx.xxx>
> To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
> Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
>
> Advanced Receiver Research has the most cost effective mast-mounted RF
> switched preamps.
>
> http://advancedreceiver.com/page10.html
>
> SSB Electronics' line of preamps might be better, but are more expensive.
>
> http://www.ssbusa.com/NEWSSBPREAMPS.html
>
> 73,
> Paul, N8HM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Sun, 19 Feb 2017 12:47:03 -0500
From: Mike Seguin <n1jez@xxxxxxxxxxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Bias Tee was (no subject)
Message-ID:
<40c40b11-e9b6-7f53-bf0e-6b632ab29b49@xxxxxxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Both Down East Microwave and SHF-Elektronik sell a bias tee.
What Radio are you using? Some can add voltage on the coax for you. For
instance, the FT-847 can do it.
DEMI is $40-45.
For Coax switching, SHF-Elektronik has the CAS. You didn't mention power
level....
Mike
On 2/19/2017 12:33 PM, Dale Kubichek via AMSAT-BB wrote:
> These are very good devices (lil pricey), but an issue I found is they do
not sell the shack-coax-end 'voltage input/isolation' box/device to power
these via coax.
> Just like I'd like to find a solid low-loss on-mast
two-position-coax-switch to be controlled via ~12VDC from the shack coax.
Making changing CP or Vet/Horz easy with only one coax feed. I want them for
2m/70cm/1.2G. MFJ has one but it's not rated for >150MHz.
> Best regards,
> Dale Kubichek, MS-EET, N6JSX
> Sidney, OH 45365 EN70vh
>
> http://groups.yahoo.com/group/HAM-SATs
> http://groups.yahoo.com/group/RDF-USA
> Message: 2
> Date: Sat, 18 Feb 2017 20:34:38 -0500
> From: Paul Stoetzer <n8hm@xxxx.xxx>
> To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
> Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
>
> Advanced Receiver Research has the most cost effective mast-mounted RF
> switched preamps.
>
> http://advancedreceiver.com/page10.html
>
> SSB Electronics' line of preamps might be better, but are more expensive.
>
> http://www.ssbusa.com/NEWSSBPREAMPS.html
>
> 73,
> Paul, N8HM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
------------------------------
Message: 4
Date: Sun, 19 Feb 2017 12:59:02 -0500
From: Norm n3ykf <normanlizeth@xxxxx.xxx>
To: Joe <nss@xxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Antennas
Message-ID:
<CAJUhCTNZ81NmPYf6GApKC5sFXNhhPLQHNL8-YBfdzipjxChDkg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Arrow corner beam for 440. Works well.
On Sun, Feb 19, 2017 at 12:05 PM, Joe <nss@xxx.xxx> wrote:
> Weather is nice,
> Time to put up antennas.
>
> Now I know most like to go CP, But I'm on a limited budget. So it will need
> to be a traditional linearly polarity yagi,
>
> Of course I can mount them vertically or horizontally polarized.
> And if it was just one band, is there ny preference to vert or horiz?
>
> I don't see any, except from the man made noise issue when on low
> elevations.
>
> is there any best polarity?
>
> I'm planning on a side by side 2 meter and 70 cm set up
> 2 meter vertically polarized on one end of a cros boom, and the same on the
> other side but 70 cm.
>
> This way I can get away with using a metal cross boom.
>
> Thoughts?
>
> Joe WB9SBD
> --
> Sig
> The Original Rolling Ball Clock
> Idle Tyme
> Idle-Tyme.com
> http://www.idle-tyme.com
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Sun, 19 Feb 2017 18:08:21 +0000 (UTC)
From: <kk0sd1@xxx.xxx>
To: "n1jez@xxxxxxxxxxxxxxxxx.xxxx <n1jez@xxxxxxxxxxxxxxxxx.xxx>,
"amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Bias Tee was (no subject)
Message-ID: <1749459039.720751.1487527701025@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I know it isn't exactly what you were looking for... Back when I had a
station I ran some cat5 cable out to the mast. I ran a bunch of switches in
the shack and could independently do pre-amps, polarization changes, etc...
It was pretty easy and fool proof, and kept my options open. None of this
stuff draws much current, and cat5 is really cheap.
73,Joe kk0sd
On Sunday, February 19, 2017 11:47 AM, Mike Seguin
<n1jez@xxxxxxxxxxxxxxxxx.xxx> wrote:
Both Down East Microwave and SHF-Elektronik sell a bias tee.
What Radio are you using? Some can add voltage on the coax for you. For
instance, the FT-847 can do it.
DEMI is $40-45.
For Coax switching, SHF-Elektronik has the CAS. You didn't mention power
level....
Mike
On 2/19/2017 12:33 PM, Dale Kubichek via AMSAT-BB wrote:
> These are very good devices (lil pricey), but an issue I found is they do
not sell the shack-coax-end 'voltage input/isolation' box/device to power
these via coax.
> Just like I'd like to find a solid low-loss on-mast
two-position-coax-switch to be controlled via ~12VDC from the shack coax.
Making changing CP or Vet/Horz easy with only one coax feed. I want them for
2m/70cm/1.2G. MFJ has one but it's not rated for >150MHz.
>? Best regards,
> Dale Kubichek, MS-EET, N6JSX
> Sidney, OH 45365? EN70vh
>
> http://groups.yahoo.com/group/HAM-SATs
> http://groups.yahoo.com/group/RDF-USA
> Message: 2
> Date: Sat, 18 Feb 2017 20:34:38 -0500
> From: Paul Stoetzer <n8hm@xxxx.xxx>
> To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
> Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
>
> Advanced Receiver Research has the most cost effective mast-mounted RF
> switched preamps.
>
> http://advancedreceiver.com/page10.html
>
> SSB Electronics' line of preamps might be better, but are more expensive.
>
> http://www.ssbusa.com/NEWSSBPREAMPS.html
>
> 73,
> Paul, N8HM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Sun, 19 Feb 2017 23:43:00 +1300
From: Selwyn Cathcart <zl2bjo@xxxxx.xxx>
To: "'Paul Stoetzer'" <n8hm@xxxx.xxx>, <kb2cwn@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] (no subject)
Message-ID: <057d01d28a9c$f3fc86b0$dbf59410$@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hello,
You may wish to consider the VHFDesign range of low noise LNA's?
http://vhfdesign.com/en/category/lna
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Paul
Stoetzer
Sent: Sunday, February 19, 2017 02:35 PM
To: kb2cwn@xxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] (no subject)
Advanced Receiver Research has the most cost effective mast-mounted RF
switched preamps.
http://advancedreceiver.com/page10.html
SSB Electronics' line of preamps might be better, but are more expensive.
http://www.ssbusa.com/NEWSSBPREAMPS.html
73,
Paul, N8HM
On Sat, Feb 18, 2017 at 8:29 PM, Frank Staffa Jr. via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
> Well, I have spent a good portion of the day trying to find preamps
> for my M2 leopack. I read that at the very least putting one on the
> 70cm antenna will help a lot with the receive. But, I just can not
> find any. Most of the names I came across must have went out of
> business because their website are no longer in existence. Any
> suggestions out their from you season operators out there? The ones
> that I got last post I couldn't find. Thanks
>
> Sent from Yahoo Mail on Android
>
> On Fri, Feb 17, 2017 at 3:17 PM, Frank Staffa Jr.<kb2cwn@xxxxx.xxx>
wrote: Hello everyone. I just purchased a M2 leopack antenna system and I
was reading about different coax cables to use for low loss. Since I am
mounting the antenna only about 10 feet off the ground, 50 foot will be
enough to go into the shack. I wanted to purchase RG8x but read that the
best way to go is with LMR400. What I dislike about it is that its much
wider and very stiff, and will make it difficult around bends. I also have
the Az/alt rotator which I will have to loop each antenna to have enough for
turns. Any other suggestions out there for an alternative to LMR-400?Thanks
Frank KB2CWN
>
> Sent from Yahoo Mail on Android
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed are solely those of the author, and do not reflect the
official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7998 / Virus Database: 4756/13957 - Release Date: 02/15/17
------------------------------
Message: 7
Date: Sun, 19 Feb 2017 11:39:13 -0800
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Dale Kubichek <N6JSX@xxxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] (no subject)
Message-ID: <8a6fe5d6-1513-b4bd-5ee8-650857e55925@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
What rig are you using in the shack? Many of them have the option to
power a pre-amp via the coax, though sometimes this requires opening the
box up to move a jumper.
Greg KO6TH
Dale Kubichek via AMSAT-BB wrote:
> These are very good devices (lil pricey), but an issue I found is they do
not sell the shack-coax-end 'voltage input/isolation' box/device to power
these via coax.
> Just like I'd like to find a solid low-loss on-mast
two-position-coax-switch to be controlled via ~12VDC from the shack coax.
Making changing CP or Vet/Horz easy with only one coax feed. I want them for
2m/70cm/1.2G. MFJ has one but it's not rated for >150MHz.
> Best regards,
> Dale Kubichek, MS-EET, N6JSX
> Sidney, OH 45365 EN70vh
>
> http://groups.yahoo.com/group/HAM-SATs
> http://groups.yahoo.com/group/RDF-USA
> Message: 2
> Date: Sat, 18 Feb 2017 20:34:38 -0500
> From: Paul Stoetzer <n8hm@xxxx.xxx>
> To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
> Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
>
> Advanced Receiver Research has the most cost effective mast-mounted RF
> switched preamps.
>
> http://advancedreceiver.com/page10.html
>
> SSB Electronics' line of preamps might be better, but are more expensive.
>
> http://www.ssbusa.com/NEWSSBPREAMPS.html
>
> 73,
> Paul, N8HM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8
Date: Sun, 19 Feb 2017 14:48:14 -0500
From: Fred Castello <fredcastello@xxxxx.xxx>
To: kb2cwn@xxxxx.xxx
Cc: AMSAT bbs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Preamps
Message-ID: <729A1476-9009-459C-9721-371A90DDF00F@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Message: 1
Date: Sun, 19 Feb 2017 01:29:59 +0000 (UTC)
From: "Frank Staffa Jr." <kb2cwn@xxxxx.xxx <mailto:kb2cwn@xxxxx.xxx>>
To: "amsat-bb@xxxxx.xxx <mailto:amsat-bb@xxxxx.xxx>" <amsat-bb@xxxxx.xxx
<mailto:amsat-bb@xxxxx.xxx>>
Subject: Re: [amsat-bb] (no subject)
Message-ID: <481922136.333610.1487467799948@xxxx.xxxxx.xxx
<mailto:481922136.333610.1487467799948@xxxx.xxxxx.xxx>>
Content-Type: text/plain; charset=UTF-8
Well, I have spent a good portion of the day trying to find preamps for my
M2 leopack. I read that at the very least putting one on the 70cm antenna
will help a lot with the receive. But, I just can not find any. Most of the
names I came across must have went out of business because their website are
no longer in existence. ?Any suggestions out their from you season operators
out there? The ones that I got last post I couldn't find.?Thanks
Sent from Yahoo Mail on Android
On Fri, Feb 17, 2017 at 3:17 PM, Frank Staffa Jr.<kb2cwn@xxxxx.xxx
<mailto:kb2cwn@xxxxx.xxx>> wrote: Hello everyone. I just purchased a M2
leopack antenna system and I was reading about different coax cables to use
for low loss. Since I am mounting the antenna only about 10 feet off the
ground, 50 foot will be enough to go into the shack. I wanted to purchase
RG8x but read that the best way to go is with LMR400. What I dislike about
it is that its much wider and very stiff, and will make it difficult around
bends. I also have the Az/alt rotator which I will have to loop each antenna
to have enough for turns. Any other suggestions out there for an alternative
to LMR-400?Thanks?Frank KB2CWN?
Sent from Yahoo Mail on Android
Frank,
I went through the same thing you did. I am running a Kenwood TS-790 (so
about 30 watts max) and have about 100 feet of feedline so I need preamps on
both 2 meters and 70 cms. I looked and the recommendations you have already
received are great but I ended up going with these:
http://vhfdesign.com/en/category/lna <http://vhfdesign.com/en/category/lna>
I found that they were less expensive that some of the others and they would
handle my power requirements. They have RF protection but I think most
folks would say that you still might need to use a sequencer or just an
on/off switch depending on the band you are receiving on (that is the
mechanism I went with- I just switch the transmit band preamp off (thus it
is bypassed) using a simple switch in the shack). They would probably be
fine for FM but for SSB it is not worth taking the chance (I switch them
religiously). You could also use the simple sequencer they sell. That is
my next project. I have been very pleased with them but have only had them
in place for a few days. The company was very responsive to my questions
via email and I was a bit of a pain when I bought them because they appear
to be a new(ish) company. Good luck and have fun!
Fred - KF4FC
------------------------------
Message: 9
Date: Sun, 19 Feb 2017 20:09:07 +0000 (UTC)
From: Dale Kubichek <n6jsx@xxxxx.xxx>
To: Greg D <ko6th.greg@xxxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] (no subject)
Message-ID: <1619939751.544849.1487534947894@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
FT-767GX, IC-271/471, IC-7000, only my IC-9100 can do this (Set Mode items
45/46/47 'pre-amp', unknown voltage/max-current as manual does not state).?
Hence why most older radios need to have a shack external coax-VDC
injector/RF-filter device to make work.?
?Best regards,??
Dale Kubichek, MS-EET, N6JSX
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Dale Kubichek <N6JSX@xxxxx.xxx>; "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Sent: Sunday, February 19, 2017 2:39 PM
Subject: Re: [amsat-bb] (no subject)
What rig are you using in the shack?? Many of them have the option to
power a pre-amp via the coax, though sometimes this requires opening the
box up to move a jumper.
Greg? KO6TH
Dale Kubichek via AMSAT-BB wrote:
> These are very good devices (lil pricey), but an issue I found is they do
not sell the shack-coax-end 'voltage input/isolation' box/device to power
these via coax.
> Just like I'd like to find a solid low-loss on-mast
two-position-coax-switch to be controlled via ~12VDC from the shack coax.
Making changing CP or Vet/Horz easy with only one coax feed. I want them for
2m/70cm/1.2G. MFJ has one but it's not rated for >150MHz.
>? Best regards,?
> Dale Kubichek, MS-EET, N6JSX
> Sidney, OH 45365? EN70vh
>
> http://groups.yahoo.com/group/HAM-SATs
> http://groups.yahoo.com/group/RDF-USA
> Message: 2
> Date: Sat, 18 Feb 2017 20:34:38 -0500
> From: Paul Stoetzer <n8hm@xxxx.xxx>
> To: "kb2cwn@xxxxx.xxxx <kb2cwn@xxxxx.xxx>
> Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
>
> Advanced Receiver Research has the most cost effective mast-mounted RF
> switched preamps.
>
> http://advancedreceiver.com/page10.html
>
> SSB Electronics' line of preamps might be better, but are more expensive.
>
> http://www.ssbusa.com/NEWSSBPREAMPS.html
>
> 73,
> Paul, N8HM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Sun, 19 Feb 2017 21:22:33 +0100
From: Wouter Weggelaar <wouterweg@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] NAYIF-1 TLEs
Message-ID:
<CAKXf1rE+0RxKpU7b00xcJsuS7Fmw1CzjbCe4SrwzLemPBbiMHA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
And attached the ones that have correct CRCs and some small differences:
NAYIF-corrected
1 17003U 17003A 17046.17714120 0.00000000 00000-0 00000-0 0 9993
2 17003 97.5521 107.5843 0004848 278.6481 296.8511 15.21991390 02
2017-008F-corrected
1 17004U 17004A 17050.08273148 .00155491 00000-0 65272-2 0 675
2 17004 97.5078 111.7095 0000538 25.3680 334.7132 15.22769132 566
updates ones are also at http://amsat-nl.org/download/NAYIF_TLE.txt
Wouter
On Sun, Feb 19, 2017 at 5:00 PM, Wouter Weggelaar <wouterweg@xxxxx.xxx> wrote:
> Hi All,
>
> The post-launch TLEs for NAYIF-1 are starting to become out-of date.
> We have produced a new set of unofficial TLEs that take into account
> the new AOS / TCA / LOS timings.
>
> Please however note that the post-launch TLEs do not contain the
> correct constants to make this TLE reliable in the long run.
>
> The only object that comes close in the recent TLEs from JSpOC is the
> 2017-008F object, but note that we are still missing a lot of objects.
> They are working round the clock to map and catalog all remaining
> objects, but 104 satellites presents a challenge.
>
> We are in contact with JSpOC about this and are doing our best to help
> them match up objects.
>
> For now, the unofficial ones are:
> NAYIF-corrected
> 1 17003U 17002A 17046.17714120 0.00000000 00000-0 00000-0 0 9994
> 2 17003 97.5521 107.5843 0004848 278.6481 296.8511 15.21991390 02
>
> and
>
> 2017-008F-corrected
> 1 17004U 17008F 17050.08273148 .00155491 00000-0 65272-2 0 9998
> 2 17004 97.5078 111.7095 0000538 25.3680 334.7132 15.22769132 566
>
> And we welcome any observations with regard to which one you used and
> how much it was off.
>
> I would think the 2017-008F variant will work better in the long run,
> but we will have to see.
>
> 73
>
> Wouter PA3WEG
------------------------------
Message: 11
Date: Sun, 19 Feb 2017 19:53:25 -0600
From: Joe <nss@xxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Antennas
Message-ID: <113acc48-c040-4f8c-50b8-242e0576022b@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor
rotors. soooo, need 8.
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
> Hi Joe,
>
> Vertical works fine but man made noise is mostly vertically polarised
> so you will get a bit more of that.
> With horizontal, you have more problems with ground reflection so you
> get more fading.
>
> Depending on how big your metal cross boom is you will have no
> problems on 2M.
> On 70CMs the metal boom upsets the gain/radiation pattern. I tried
> this with a 2"" cross boom and it didn't
> work well at all. A shorter yagi, end mounted worked much better.
>
> 73,
> Terry ZL2BAC
>
> -----Original Message----- From: Joe
> Sent: Monday, February 20, 2017 6:05 AM
> To: amsat-bb
> Subject: [amsat-bb] Antennas
>
> Weather is nice,
> Time to put up antennas.
>
> Now I know most like to go CP, But I'm on a limited budget. So it will
> need to be a traditional linearly polarity yagi,
>
> Of course I can mount them vertically or horizontally polarized.
> And if it was just one band, is there ny preference to vert or horiz?
>
> I don't see any, except from the man made noise issue when on low
> elevations.
>
> is there any best polarity?
>
> I'm planning on a side by side 2 meter and 70 cm set up
> 2 meter vertically polarized on one end of a cros boom, and the same on
> the other side but 70 cm.
>
> This way I can get away with using a metal cross boom.
>
> Thoughts?
>
> Joe WB9SBD
------------------------------
Message: 12
Date: Sun, 19 Feb 2017 20:17:36 -0600
From: Jerry Buxton <n0jy@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Antennas
Message-ID: <50554c6f-c989-08bf-40d5-75fd6b9662cc@xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
If it's a fairly short run, maybe CAT-5? If it's a little longer run,
maybe twist 4 pairs and run a CAT-5 for each rotator?
Jerry Buxton, N?JY
On 2/19/2017 19:53, Joe wrote:
> Any good suggestions for cheap 8 conductor rotor cable?
>
> I'm gonna use two of the alliance U-110 rotors, and they are 4
> conductor rotors. soooo, need 8.
>
> Joe WB9SBD
> Sig
> The Original Rolling Ball Clock
> Idle Tyme
> Idle-Tyme.com
> http://www.idle-tyme.com
> On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
>> Hi Joe,
>>
>> Vertical works fine but man made noise is mostly vertically polarised
>> so you will get a bit more of that.
>> With horizontal, you have more problems with ground reflection so you
>> get more fading.
>>
>> Depending on how big your metal cross boom is you will have no
>> problems on 2M.
>> On 70CMs the metal boom upsets the gain/radiation pattern. I tried
>> this with a 2"" cross boom and it didn't
>> work well at all. A shorter yagi, end mounted worked much better.
>>
>> 73,
>> Terry ZL2BAC
>>
>> -----Original Message----- From: Joe
>> Sent: Monday, February 20, 2017 6:05 AM
>> To: amsat-bb
>> Subject: [amsat-bb] Antennas
>>
>> Weather is nice,
>> Time to put up antennas.
>>
>> Now I know most like to go CP, But I'm on a limited budget. So it will
>> need to be a traditional linearly polarity yagi,
>>
>> Of course I can mount them vertically or horizontally polarized.
>> And if it was just one band, is there ny preference to vert or horiz?
>>
>> I don't see any, except from the man made noise issue when on low
>> elevations.
>>
>> is there any best polarity?
>>
>> I'm planning on a side by side 2 meter and 70 cm set up
>> 2 meter vertically polarized on one end of a cros boom, and the same on
>> the other side but 70 cm.
>>
>> This way I can get away with using a metal cross boom.
>>
>> Thoughts?
>>
>> Joe WB9SBD
>
> _______________________________________________
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> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 12, Issue 45
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