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CX2SA > SATDIG 25.01.19 19:03l 812 Lines 25249 Bytes #999 (0) @ WW
BID : AMSATBB1425
Read: GUEST
Subj: AMSAT-BB-digest V14 25
Path: IW8PGT<IR2UBX<SR1BSZ<OK0NBR<OK2PEN<CX2SA
Sent: 190125/1700Z @:CX2SA.SAL.URY.SOAM #:63881 [Salto] FBB7.00e $:AMSATBB1425
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Anyone have a Gulf Alpha 70cm 8x8 CP antenna? (Bob Hammond)
2. Re: Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
(Dave Webb KB1PVH)
3. Re: NEXUS identified (Carlos Picoto)
4. Re: Masthead RF preamp suggestions? (Peter Goodhall (2M0SQL))
5. Re: Masthead RF preamp suggestions? (Burns Fisher)
6. Re: NEXUS identified (Mike Rupprecht)
7. Re: Masthead RF preamp suggestions? (John Brier)
8. Re: NEXUS identified (Carlos Picoto)
9. Re: Masthead RF preamp suggestions? (Noel Petit)
10. WISP (Jeff kb2m)
----------------------------------------------------------------------
Message: 1
Date: Thu, 24 Jan 2019 07:10:31 -0800
From: Bob Hammond <propgrinder@?????.???>
To: Dave Webb KB1PVH <kb1pvh@?????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
Message-ID:
<CAKoB7OrbdbjP=JmC6=C92j2W+V=aFcNgqza7LSsoufgurD2KXw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Thanks Dave. Unfortunately there isn't assembly/tuning instructions for my
specific 70cm 8x8 CP antenna on that web site. Hence, my query to the
AMSAT-BB.
Bob
W7OTJ
On Wed, Jan 23, 2019 at 10:58 AM Dave Webb KB1PVH <kb1pvh@?????.???> wrote:
> Go to http://www.gulfalphaantennas.com there's still pages with
> tuning/assembly instructions.
>
> Dave-KB1PVH
>
>
> Sent from my Galaxy S9
>
> On Wed, Jan 23, 2019, 1:55 PM Bob Hammond <propgrinder@?????.??? wrote:
>
>> I?ve lost the instructions on how to properly place the driven element
>> shorting blocks. I?ve tried using my SWR meter but with no good results.
>>
>> Bob
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. 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: 2
Date: Thu, 24 Jan 2019 10:26:42 -0500
From: Dave Webb KB1PVH <kb1pvh@?????.???>
To: Bob Hammond <propgrinder@?????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
Message-ID:
<CAEMY9FdYcKfFrq2G97u_9LaRLaUT5gB9ueBJoitzdPGtcoeTmw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Bob,
Copy and paste from one of the Gulf Alpha pages...
5. Slide the shorting bars onto the T match rods and driven elements. Set
the distances as follows for lowest SWR:
2 Meter part: 3 ?"
70CM part: all the way out (this is the setting for other brands of UHF
antennas as well)
The above distances are measured from the inside face of the shorting bars
to the end of the T matchbox, not the end of the black bushing.
Dave-KB1PVH
Sent from my Galaxy S9
On Thu, Jan 24, 2019, 10:11 AM Bob Hammond <propgrinder@?????.??? wrote:
> Thanks Dave. Unfortunately there isn't assembly/tuning instructions for
> my specific 70cm 8x8 CP antenna on that web site. Hence, my query to the
> AMSAT-BB.
>
> Bob
> W7OTJ
>
> On Wed, Jan 23, 2019 at 10:58 AM Dave Webb KB1PVH <kb1pvh@?????.???>
> wrote:
>
>> Go to http://www.gulfalphaantennas.com there's still pages with
>> tuning/assembly instructions.
>>
>> Dave-KB1PVH
>>
>>
>> Sent from my Galaxy S9
>>
>> On Wed, Jan 23, 2019, 1:55 PM Bob Hammond <propgrinder@?????.??? wrote:
>>
>>> I?ve lost the instructions on how to properly place the driven element
>>> shorting blocks. I?ve tried using my SWR meter but with no good
>>> results.
>>>
>>> Bob
>>> _______________________________________________
>>> Sent via AMSAT-BB@?????.???. 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: Thu, 24 Jan 2019 03:21:06 +0000
From: Carlos Picoto <cpicoto@???????.???>
To: Jean-Pierre Godet <godetj@???????.??>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] NEXUS identified
Message-ID:
<MWHPR22MB08136B0B7BFC1BF49BA37B49A29A0@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="iso-8859-1"
Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees
of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
>From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame:
noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D63
3DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&latitud
e=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
________________________________
From: AMSAT-BB <amsat-bb-bounces@?????.???> on behalf of Jean-Pierre Godet
<godetj@???????.??>
Sent: Sunday, January 20, 2019 1:22:45 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and
with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
>
> With increased separation it is now clear that NEXUS is object 43937,
> 2019-003F. Downlink 437.0732 MHz.
>
> 73,
> Nico PA0DLO
>
> On 18-01-19 21:03, Nico Janssen wrote:
>>
>> With an unexpected new TLE set published, NEXUS now has a slightly
>> better match with object 43940, 2019-003J. Apparently TLEs have not
>> yet stabilized.
>>
>> 73, Nico PA0DLO
>>
>> On 18-01-19 14:07, Nico Janssen wrote:
>>>
>>> Doppler measurements show that NEXUS is object 43938, 2019-003G.
>>> Downlink: 437.0732 MHz.
>>>
>>> 73,
>>> Nico PA0DLO
>>>
>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@?????.???. 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@?????.???. 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@?????.???. 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: 4
Date: Thu, 24 Jan 2019 15:31:00 +0000
From: "Peter Goodhall (2M0SQL)" <peter@????????.??.??>
To: Ken M <va7kbm@???????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID:
<CAFvUair+YS2ygc9z-a_JCRMEw0gam5EP_7PLwAxRfp_vS30Q+Q@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Everyone going to have strong views on Omnis vs Yagis so I'll cut to
comments on preamps
Low-cost decent preamps can be purchased from shf elektronik in
Germany http://www.shf-elektronik.de/en/ they are also resold via
Wimo, these preamps are well designed and have RF sense switching so
you can use them on TX too.
73, Peter, 2M0SQL
On Thu, 24 Jan 2019 at 12:32, Ken M <va7kbm@???????.???> wrote:
>
> Hello all,
>
> I am seeking suggestions for reasonably low-cost (but reasonably
effective) masthead preamps for 2m and 70cm to go along with a pair of omni
QFH antennas. Kit or commercial is fine.
>
> Also any thoughts on how effective preamps might be on omni antennas vs
highly directional antennas.
>
> Thanks -
>
> 73 Ken VA7KBM
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: Thu, 24 Jan 2019 11:03:17 -0500
From: Burns Fisher <burns@??????.??>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID:
<CABX7KxW=N7YM-5D5D0h=7p0cA+=F4oMDH50yC6t6SU0Rw7vctg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I'll add for receive-only, check out the preamps that Airspy.us sells.
They have a broadband one (with no filtering) and also some band-specific
preamps. The nice thing is that they can be powered by phantom power on
the coax, which can be supplied by a funcube dongle, and Airspy, or and
RTL-SDR.
As many have said, it all depends on the application!
On Thu, Jan 24, 2019 at 10:52 AM Peter Goodhall (2M0SQL) <
peter@????????.??.??> wrote:
> Everyone going to have strong views on Omnis vs Yagis so I'll cut to
> comments on preamps
>
> Low-cost decent preamps can be purchased from shf elektronik in
> Germany http://www.shf-elektronik.de/en/ they are also resold via
> Wimo, these preamps are well designed and have RF sense switching so
> you can use them on TX too.
>
> 73, Peter, 2M0SQL
>
> On Thu, 24 Jan 2019 at 12:32, Ken M <va7kbm@???????.???> wrote:
> >
> > Hello all,
> >
> > I am seeking suggestions for reasonably low-cost (but reasonably
> effective) masthead preamps for 2m and 70cm to go along with a pair of omni
> QFH antennas. Kit or commercial is fine.
> >
> > Also any thoughts on how effective preamps might be on omni antennas vs
> highly directional antennas.
> >
> > Thanks -
> >
> > 73 Ken VA7KBM
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. 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@?????.???. 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: Thu, 24 Jan 2019 17:11:05 +0100
From: "Mike Rupprecht" <mail@??????????????.??>
To: "'Carlos Picoto'" <cpicoto@???????.???>
Cc: amsat-bb@?????.???? 'Pierros Papadeas' <pierros@???????.???>
Subject: Re: [amsat-bb] NEXUS identified
Message-ID: <000c01d4b3ff$699d0ec0$3cd72c40$@??>
Content-Type: text/plain; charset="iso-8859-1"
Carlos,
may I ask you which telemetry forwarder do you use?
This is neither a valid AX.25 packet nor a NEXUS packet. A good one looks
like this:
9C8AB0AAA6406094A662B282AC6103F0A10002E50300009B829001010101010D520098014405
DC00D901280926066909CE09EA09250948095C09F309EF0A0509D6090C090B0A470A01095209
E109D775DE4ADD4ED90067FF41004E08CA07D9097C07E500
I wonder if SatNOGS has accepted this paket.
73 Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? Im Auftrag von Carlos
Picoto
Gesendet: 24 January 2019 04:21
An: Jean-Pierre Godet; amsat-bb@?????.???
Betreff: Re: [amsat-bb] NEXUS identified
Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees
of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
>From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame:
noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D
633DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&lat
itude=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
10
________________________________
From: AMSAT-BB <amsat-bb-bounces@?????.???> on behalf of Jean-Pierre Godet
<godetj@???????.??>
Sent: Sunday, January 20, 2019 1:22:45 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and
with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
>
> With increased separation it is now clear that NEXUS is object 43937,
> 2019-003F. Downlink 437.0732 MHz.
>
> 73,
> Nico PA0DLO
>
> On 18-01-19 21:03, Nico Janssen wrote:
>>
>> With an unexpected new TLE set published, NEXUS now has a slightly
>> better match with object 43940, 2019-003J. Apparently TLEs have not
>> yet stabilized.
>>
>> 73, Nico PA0DLO
>>
>> On 18-01-19 14:07, Nico Janssen wrote:
>>>
>>> Doppler measurements show that NEXUS is object 43938, 2019-003G.
>>> Downlink: 437.0732 MHz.
>>>
>>> 73,
>>> Nico PA0DLO
>>>
>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@?????.???. 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@?????.???. 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@?????.???. 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@?????.???. 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: 7
Date: Thu, 24 Jan 2019 23:39:45 -0500
From: John Brier <johnbrier@?????.???>
To: "Stephen E. Belter" <seb@??????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID:
<CALn0fKMeCi8_s81mWtRbEyqhAZ=sHGtm5Z8DciCP7nHsp8YoCQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
On Thu, Jan 24, 2019 at 9:05 AM Stephen E. Belter <seb@??????.???> wrote:
> Advanced Receiver Research (ARR, www.advancedreceiver.com) has less
expensive preamps that are also popular, but you'll need to build the
weatherproof housing. The front-end filtering isn't as good as the SSB.
The 160 watt ARR preamps are weatherproof. Not sure they are
inexpensive though :-)
http://www.advancedreceiver.com/page10.html
73, John Brier KG4AKV
------------------------------
Message: 8
Date: Fri, 25 Jan 2019 03:18:28 +0000
From: Carlos Picoto <cpicoto@???????.???>
To: Mike Rupprecht <mail@??????????????.??>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>, 'Pierros Papadeas'
<pierros@???????.???>
Subject: Re: [amsat-bb] NEXUS identified
Message-ID:
<MWHPR22MB0813EB6C1FF71A512558C2C3A29B0@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="Windows-1252"
Hi Mike,
Thanks for your reply.
I just went looking for this packet on the replay of the IQ recording and I
don?t see any evidence of it. So not sure what Direwolf decoded in this case.
To answer your questions, I use my own implementation in C# of the SiDS
protocol, it only does double checking against callsign for AX.25 packets
and you correctly point out this is not a valid one.
On the Satnogs side it might get discarded afterwards but it does show the
submission
Telemetry (frames)
Frames: 1 Latest frame submitted on 2019-01-23 19:36:55 by AD7NP-CN87vp
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
________________________________
From: Mike Rupprecht <mail@??????????????.??>
Sent: Thursday, January 24, 2019 8:11:05 AM
To: 'Carlos Picoto'
Cc: 'Pierros Papadeas'; 'Jean-Pierre Godet'; amsat-bb@?????.???
Subject: AW: [amsat-bb] NEXUS identified
Carlos,
may I ask you which telemetry forwarder do you use?
This is neither a valid AX.25 packet nor a NEXUS packet. A good one looks
like this:
9C8AB0AAA6406094A662B282AC6103F0A10002E50300009B829001010101010D520098014405
DC00D901280926066909CE09EA09250948095C09F309EF0A0509D6090C090B0A470A01095209
E109D775DE4ADD4ED90067FF41004E08CA07D9097C07E500
I wonder if SatNOGS has accepted this paket.
73 Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? Im Auftrag von Carlos
Picoto
Gesendet: 24 January 2019 04:21
An: Jean-Pierre Godet; amsat-bb@?????.???
Betreff: Re: [amsat-bb] NEXUS identified
Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees
of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
>From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame:
noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D
633DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&lat
itude=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
10
________________________________
From: AMSAT-BB <amsat-bb-bounces@?????.???> on behalf of Jean-Pierre Godet
<godetj@???????.??>
Sent: Sunday, January 20, 2019 1:22:45 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and
with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
>
> With increased separation it is now clear that NEXUS is object 43937,
> 2019-003F. Downlink 437.0732 MHz.
>
> 73,
> Nico PA0DLO
>
> On 18-01-19 21:03, Nico Janssen wrote:
>>
>> With an unexpected new TLE set published, NEXUS now has a slightly
>> better match with object 43940, 2019-003J. Apparently TLEs have not
>> yet stabilized.
>>
>> 73, Nico PA0DLO
>>
>> On 18-01-19 14:07, Nico Janssen wrote:
>>>
>>> Doppler measurements show that NEXUS is object 43938, 2019-003G.
>>> Downlink: 437.0732 MHz.
>>>
>>> 73,
>>> Nico PA0DLO
>>>
>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@?????.???. 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@?????.???. 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@?????.???. 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@?????.???. 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: 9
Date: Fri, 25 Jan 2019 07:04:20 -0600
From: Noel Petit <petitnoel47@?????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID: <c893af29-fd54-eedd-e8a2-8b4f3460e0dd@?????.???>
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Stephen:
I don't recommend scrimping on any thing that operates outside. You
probably only need a pre-amp for UHF due to cable and connection losses
coming into the shack. I use the M2 Satellite array of 2m and 70cm
antennae with ARR 160 watt capable pre-amps on both. The incoming cables
are LMR-400 coax about 35' long.
I rarely need the 2M pre-amp with the M2 LEO Pack. The LEO pack 2 M
antenna has 4 elements on each phase circularly polarized and the
readability difference with and without the ARR pre-amp is very small.
The 10 elements of the Leo Pack on UHF is usually enough but the pre-amp
helps for near the horizon and it makes up for cable losses.
Anything that doesn't need electricity and more connectors on the roof
will make your life simpler. The main advantage of the M2 Leo Pack is
that it is circularly polarized and you will not have phase phading
(couldn't resist). A higher gain 2 M antenna would be better near the
horizon but fade if not circular. You may consider one of the omni 2m
antennas with a simple pre-amp enclosed for receive. We always have a 2m
omni turnstile or quadrafilar helix with preamp for receive when making
an ARISS contact (145.800 Mhz to the International Space Station). These
can be homebrewed and the pre-amp contained inside the housing.
I cannot service the antenna during the winter (it is -14 F with winds
forecast for today). So, having something reliable and simple is worth
the few extra dollars.
Noel Petit
WB0VGI
Harris, MN
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Message: 10
Date: Fri, 25 Jan 2019 11:55:42 -0500
From: Jeff kb2m <kb2mjeff@???.???>
To: Amsat <amsat-bb@?????.???>
Subject: [amsat-bb] WISP
Message-ID: <ac03512c-d9b3-f9ba-7bf9-158b168055ea@???.???>
Content-Type: text/plain; charset=utf-8; format=flowed
I was merrily rolling along with a full-dir? then? all of a sudden WISP
loses all it's config data. Sats disappeared, my lat long is set to 0,
etc. There doesn't seem to be a corrupt file involved. I try to redo a
sat and it doesn't seem to accept any data, just the sat name. Is there
anyway around this other then a complete re-install? I'm running WIN10...
73 Jeff kb2m
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End of AMSAT-BB Digest, Vol 14, Issue 25
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