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CX2SA > SATDIG 03.10.13 21:02l 358 Lines 11413 Bytes #999 (0) @ WW
BID : AMSATBB8338
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Subj: AMSAT-BB-digest V8 338
Path: IZ3LSV<IK6ZDE<VE3UIL<CX2SA
Sent: 131003/1902Z @:CX2SA.SAL.URY.SA #:11776 [Salto] FBB7.00e $:AMSATBB8338
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Pamphlets (Clint Bradford)
2. Re: Pamphlets for General Public (Stephan Greene)
3. AMSAT Broadband Preamp Specs (Paul Stoetzer)
4. D STAR net tonight REF58A (damon runion)
5. Re: AMSAT Broadband Preamp Specs (Alan)
6. Re: AMSAT Broadband Preamp Specs (Paul Stoetzer)
7. Re: Cornell CUSat Keps? (Bryce Salmi)
----------------------------------------------------------------------
Message: 1
Date: Wed, 2 Oct 2013 12:45:30 -0700 (GMT-07:00)
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Pamphlets
Message-ID:
<18207528.1380743130749.JavaMail.root@xxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
>> ... are there any available materials that explain amateur satellites to
the general public?
If you do not find anything in the next couple of days, I will put a handout
together explaining what AMSAT-NA and the ARRL are for general public reading.
Clint K6LCS
909-241-7666 - cell
----------------------------------
Clint Bradford, K6LCS
http://www.clintbradford.com
------------------------------
Message: 2
Date: Wed, 2 Oct 2013 16:01:28 -0400
From: Stephan Greene <ks1g04@xxxxx.xxx>
To: Amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Pamphlets for General Public
Message-ID:
<CACZz0S3hab475eFxBACQPM2CdZbXJ7Lbk8Z8UEsufAVbKx07tQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Paul: I do not have anything specific, I suggest looking for flyers
prepared for Field Day and Jamboree On The Air (JOTA), as those are both
non-ham general public audiences. Possibly something from ARES (either
ARRL or local DC & VA). Some of the VHF rovers put ARES magnetic signs
on their vehicles to put inquisitive officials into a better mindset.
It's not just the local law enforcement types that look & wonder. I've
gotten similar looks & weird questions from folks while operating HF
bicycle portable in Northern VA.
73 Steve KS1G
From: Paul Stoetzer
> Date: Wed, 2 Oct 2013 09:55:38 -0400
> Subject: [amsat-bb] Pamphlets for General Public
> Good morning,
>
> I was out in a nearby park seeking out a relatively clear northeastern
> horizon for this morning's mid-Atlantic pass of FO-29 when I was approached
> by the friendly Metropolitan Police Department. While they accepted my
> explanation and went on their way, are there any available materials that
> explain amateur satellites to the general public? All I've found so far is
> materials explaining amateur satellites to other hams. I'd like to find
> something that I can print out and keep in my bag to respond to any
> questions, especially from law enforcement. I live a mile southwest of the
> U. S. Capitol, so law enforcement around here tends to be a bit suspicious
> of things that appear to be out of the norm.
>
> Thanks and 73,
>
> Paul Stoetzer, N8HM
> Washington, DC
>
------------------------------
Message: 3
Date: Thu, 03 Oct 2013 06:40:02 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AMSAT Broadband Preamp Specs
Message-ID: <524D4982.10403@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I was curious - has anyone measured the noise figure and gain of the
AMSAT Broadband Preamp?
73,
Paul Stoetzer, N8HM
Washington, DC
------------------------------
Message: 4
Date: Thu, 3 Oct 2013 08:35:15 -0500
From: damon runion <damonwa4hfn@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] D STAR net tonight REF58A
Message-ID:
<CACNBj2qFtWFR7YF7MG73ucj+ELkfMbZhnxAbS28cTPtUq6vV0A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
D Star Amsat users net tonight at Please note a REF change
01;00 UTC on- --- REF 58 A ----------
Hope to see you there with news about grid trips new operators and
things you may want to sell or buy
Satellite news ?
https://sites.google.com/site/memphisdstar/d-satellite-amsat-net
Damon
WA4HFN em55
Memphis, TN
------------------------------
Message: 5
Date: Thu, 3 Oct 2013 10:22:51 -0500
From: Alan <wa4sca@xxxxx.xxx>
To: "'Paul Stoetzer'" <n8hm@xxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT Broadband Preamp Specs
Message-ID: <7E43D9D40CC249378E45F19C2BCAB693@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Paul,
Spence did some rough testing, but it was designed to be simple, cheap,
robust, and easily duplicated
rather than cutting edge. I did some A/B testing with an ARR preamp on
SO-50 and FO-29. Both made
significant improvement, and I did not hear any practical difference. That
would not likely be the
case if we were talking about P3 bird at apogee.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Paul Stoetzer
<Sent: Thursday, October 03, 2013 5:40 AM
<To: amsat-bb@xxxxx.xxx
<Subject: [amsat-bb] AMSAT Broadband Preamp Specs
<
<I was curious - has anyone measured the noise figure and gain of the
<AMSAT Broadband Preamp?
<
<73,
<
<Paul Stoetzer, N8HM
<Washington, DC
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of
<the author.
<Not an AMSAT-NA member? Join now to support the amateur
<satellite program!
<Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
<
------------------------------
Message: 6
Date: Thu, 03 Oct 2013 12:02:02 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: APBIDDLE@xxxxxxx.xxx
Cc: Alan <wa4sca@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AMSAT Broadband Preamp Specs
Message-ID: <524D94FA.5090603@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Alan,
Thanks for the "real world" example. My receiver is an Icom IC-R10,
which the specifications say has a 0.25 uV sensitivity on 144 MHz and
0.32 uV on 435. I operate portable, so I'm not using the preamp for the
high gain to overcome cable loss, but to overcome the relatively high
noise figure of the receiver. The preamp works great for FO-29. When I
have a clear horizon, I can hear it down to 1 degree or so with an Arrow
antenna. My problem is the horizon (and a military spread spectrum
radiolocation system that causes "clicking" noises all over the 70cm
band here in Washington).
On 2m, the preamp also helps greatly, but the preamp also amplifies
countless out of band signals that desense the receiver. I have a PAR
electronics notch filter to notch out the pagers at 152 MHz (two
kilowatt pager transmitters are a quarter mile away from me), but that
doesn't completely eliminate the problem. I have used a 10 dB attenuator
between the preamp and receiver which eliminates the desense, but also
reduces the signal level a bit too much. A 6 dB attenuator should arrive
in my mailbox shortly and I'll try it on the next pass of AO-7 this
afternoon.
What I likely really need to add is some low loss bandpass filtering for
2 meters, but it needs to be small since I operate with everything in a
DSLR bag carried around my neck. Any suggestions?
Ultimately the only perfect solution is a second FT-817 to use as the
receiver, but that's not in the cards at the moment.
73,
Paul, N8HM
On 10/3/2013 11:22 AM, Alan wrote:
> Paul,
>
> Spence did some rough testing, but it was designed to be simple, cheap,
robust, and easily duplicated
> rather than cutting edge. I did some A/B testing with an ARR preamp on
SO-50 and FO-29. Both made
> significant improvement, and I did not hear any practical difference.
That would not likely be the
> case if we were talking about P3 bird at apogee.
>
> 73s,
>
> Alan
> WA4SCA
>
>
>
> <-----Original Message-----
> <From: amsat-bb-bounces@xxxxx.xxx
> <[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Paul Stoetzer
> <Sent: Thursday, October 03, 2013 5:40 AM
> <To: amsat-bb@xxxxx.xxx
> <Subject: [amsat-bb] AMSAT Broadband Preamp Specs
> <
> <I was curious - has anyone measured the noise figure and gain of the
> <AMSAT Broadband Preamp?
> <
> <73,
> <
> <Paul Stoetzer, N8HM
> <Washington, DC
> <_______________________________________________
> <Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of
> <the author.
> <Not an AMSAT-NA member? Join now to support the amateur
> <satellite program!
> <Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> <
>
------------------------------
Message: 7
Date: Thu, 3 Oct 2013 10:07:38 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Colin Hurst <cjhurst@xxxxxxx.xxx.xx>, Amsat BB
<AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Cornell CUSat Keps?
Message-ID:
<CAN5j0sp9J-VF1FwuxJFay-tASZJ1SJ8-cCFCbfFyBd6qDXTHTQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Looks like the DANDE website officially uses 2013-055B too!
http://spacegrant.colorado.edu/images/DANDECelestrakTLE.txt
On Tue, Oct 1, 2013 at 11:00 PM, Colin Hurst <cjhurst@xxxxxxx.xxx.xx> wrote:
> Alan & Bryce,
> 2013-055B appears currently to be the best fit for both DANDE and CUSAT.
> 73
> Colin VK5HI
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of Alan
> Sent: Wednesday, 2 October 2013 04:27
> To: bstguitarist@xxxxx.xxxx 'Amsat BB'
> Cc: CC
> Subject: [amsat-bb] Re: Cornell CUSat Keps?
>
> Bryce,
>
> I ran the Keps for all the objects. Space-Track shows something like 20,
> which is interesting. They are already widely dispersed, so given the low
> transmission rate, it might be better to wait a few days until at least
> some
> tentative identifications are made. I expect DK3WN is on the case. :)
>
> 73s,
>
> Alan
> WA4SCA
>
>
> <-----Original Message-----
> <From: amsat-bb-bounces@xxxxx.xxx
> <[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Bryce Salmi
> <Sent: Tuesday, October 01, 2013 12:46 PM
> <To: Amsat BB
> <Subject: [amsat-bb] Cornell CUSat Keps?
> <
> <Does anyone know the designator and/or keps for the recently launched
> <CUSat? Maybe I should stick roughly with any of the keps for the recent
> <SpaceX Falcon 9 rocket body? My friend worked on CUSat and I'd <really
> like
> <to catch a pass of it and show him it operating in orbit!
> <
> <Thanks,
> <
> <Bryce
> <KB1LQC
> <_______________________________________________
> <Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of <the author.
> <Not an AMSAT-NA member? Join now to support the amateur <satellite
> program!
> <Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> <
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 8, Issue 338
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