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CX2SA > SATDIG 09.05.18 02:35l 687 Lines 26176 Bytes #999 (0) @ WW
BID : AMSATBB13159
Read: GUEST
Subj: AMSAT-BB-digest V13 159
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Sent: 180509/0024Z @:CX2SA.SAL.URY.SOAM #:42084 [Salto] FBB7.00e $:AMSATBB13159
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: NASA Helical Antenna Question (Nico Janssen)
2. Re: NASA Helical Antenna Question (MICHAEL WILLIAMS)
3. Re: NASA Helical Antenna Question (Gregory Beat)
4. FM Sat Exhuberance (alex weimer)
5. Re: FM Sat Exhuberance (Caleb Smith)
6. cell tracking (Bob- W7LRD)
7. Re: FM Sat Exhuberance (Scott)
8. Re: FM Sat Exhuberance (Oliver)
9. Re: FM Sat Exhuberance (Joe)
10. Re: FM Sat Exhuberance (John Brier)
11. Re: FM Sats (R.T.Liddy)
12. Re: NASA Helical Antenna Question (John Mac)
13. Re: SatPC32 packet and ts-2000 AMSAT-BB Digest, Vol 13,
Issue 156 (Mr B r a d)
----------------------------------------------------------------------
Message: 1
Date: Tue, 8 May 2018 14:56:15 +0200
From: Nico Janssen <hamsat@??????.??>
To: Wendy and Terry Osborne <wandtosborne@?????.???>, k2gog@?????.???
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] NASA Helical Antenna Question
Message-ID: <e31d89d2-6219-7631-cc50-6f1ffcd80124@??????.??>
Content-Type: text/plain; charset=utf-8; format=flowed
Correction:
VHF 2 on 130.165 MHz is the secundary downlink from ISS.
The Soyuz downlink frequency is 121.750 MHz.
73,
Nico PA0DLO
On 08-05-18 14:51, Nico Janssen wrote:
>
> VHF 1 is 143.625 MHz (the standard Russian ISS downlink frequency) and
> VHF 2 is 130.165 MHz (the Soyuz downlink frequency).
>
> The gain of this 8 turn helix should be about 13 dBic.
>
> I once built a 9 turn helix for 2 m. Worked very well.
>
> 73,
> Nico PA0DLO
>
> On 08-05-18 06:30, Wendy and Terry Osborne wrote:
>> Hi,
>>
>> Yes, it's an 8 turn helix with a Gamma match (50 ohms to 120 ohms).
>> The advantages of ring reflector are in an IEEE Transactions paper
>> somewhere. (about 25 years ago?).
>> Not sure what the VHF 1 and VHF 2 frequencies are but if they are
>> more than a few MHz apart, that would explain the use of a helix
>> rather than a crossed yagi antenna.
>>
>> The other picture (existingvhf.jpg) on the web page shows a 4 crossed
>> yagi array with rotators.
>>
>> 73,
>> Terry Osborne ZL2BAC
>>
>>
>> -----Original Message----- From: John Mac
>> Sent: Tuesday, May 08, 2018 1:51 PM
>> To: Glenn Little WB4UIV
>> Cc: amsat-bb@?????.???
>> Subject: Re: [amsat-bb] NASA Helical Antenna Question
>>
>> Hi.
>>
>> Not sure its a standard 8 turn helix, the feed looks totally
>> different and
>> looks like it has a ring reflector..
>>
>> John
>>
>> On Tue, May 8, 2018 at 9:39 AM, Glenn Little WB4UIV <
>> glennmaillist@?????????.???> wrote:
>>
>>> Looks like a standard 8 turn, axial mode, helix to me.
>>>
>>> see https://en.wikipedia.org/wiki/Helical_antenna#Axial-mode_helical
>>>
>>> Looks like about 8 dBi gain.
>>>
>>> 73
>>> Glenn
>>> WB4UIV
>>>
>>>
>>>
>>> On 5/7/2018 6:57 PM, Steve Bossert via AMSAT-BB wrote:
>>>
>>>> I am curious about the helical antenna in the article just released
>>>> late
>>>> last month:
>>>> https://www.nasa.gov/feature/goddard/2018/nasa-upgrades-spac
>>>> e-station-emergency-communications-ground-stations
>>>>
>>>> This one:
>>>> https://www.nasa.gov/sites/default/files/thumbnails/image/
>>>> upgradedvhf-antenna.jpg
>>>>
>>>> While I await a reply from the article author, I wonder if anyone may
>>>> have some details on this antenna.
>>>> Looks like a good candidate as a functional lawn ornament that is not
>>>> another QFH for more garden modern art satellite installation.? I
>>>> would
>>>> like to author a construction and theory article for the HVDN.org
>>>> website
>>>> in the "notebook" section.
>>>>
>>>> Thanks,
>>>> Steve
>>>> Steve Bossert K2GOG@?????.??? 914-573-1799
>>>> _______________________________________________
>>>> 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
>>>>
>>>
>>> --
>>> -----------------------------------------------------------------------
>>> Glenn Little??????????????? ARRL Technical Specialist?? QCWA LM 28417
>>> Amateur Callsign:? WB4UIV??????????? wb4uiv@????.?????? AMSAT LM 2178
>>> QTH:? Goose Creek, SC USA (EM92xx)? USSVI LM?? NRA LM?? SBE ARRL TAPR
>>> "It is not the class of license that the Amateur holds but the class
>>> of the Amateur that holds the license"
>>>
>>>
>
> _______________________________________________
> 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: Tue, 8 May 2018 09:27:26 -0400 (EDT)
From: MICHAEL WILLIAMS <k9qho67622@???????.???>
To: amsat-bb@?????.???? k2gog@?????.???
Subject: Re: [amsat-bb] NASA Helical Antenna Question
Message-ID: <384101751.273095.1525786046967@???????.???????.???>
Content-Type: text/plain; charset=UTF-8
I've been using a similar (home brew) helix (including ring reflector) on 70
cm since AO-40 days. It works very well (see my QRZ page). The one being
discussed has an extra ring reflector.
------------------------------
Message: 3
Date: Tue, 08 May 2018 08:22:46 -0500
From: Gregory Beat <w9gb@??????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] NASA Helical Antenna Question
Message-ID: <4152E32E-71DA-481B-88EC-8A43F48ACBFE@??????.???>
Content-Type: text/plain; charset=utf-8
I posted the NASA upgrade article on QRZ Satellite Forum, April 28, 2018
https://forums.qrz.com/index.php?threads/nasa-upgrades-space-station-emergency
-communications-ground-stations.608557/
Patrick Stoddard, WD9EWK provided additional information from
the frequency chart at the ISS Fan Club web site.
VHF1 is 143.625 MHz FM, and
VHF2 is 130.167 MHz FM
ISS Fan Club web site: https://www.issfanclub.com/
ISS Frequency Chart (includes telemetry downlinks, beacons):
https://www.issfanclub.com/frequencies
AMSAT members at NASA Goddard should be able to answer additional questions.
Greg, w9gb
? EOM ?
===
Date: Tue, 8 May 2018 16:30:18 +1200
From: "Wendy and Terry Osborne"
To: "John Mac", "Glenn Little WB4UIV"
Subject: Re: [amsat-bb] NASA Helical Antenna Question
Hi,
Yes, it's an 8 turn helix with a Gamma match (50 ohms to 120 ohms).
The advantages of ring reflector are in an IEEE Transactions paper
somewhere. (about 25 years ago?).
Not sure what the VHF 1 and VHF 2 frequencies are but if they are more than
a few MHz apart, that would explain the use of a helix
rather than a crossed yagi antenna.
The other picture (existingvhf.jpg) on the web page shows a 4 crossed yagi
array with rotators.
73,
Terry Osborne ZL2BAC
------------------------------
Message: 4
Date: Tue, 8 May 2018 16:51:18 -0400 (EDT)
From: alex weimer <ingejack@???.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] FM Sat Exhuberance
Message-ID: <266624148.21755.1525812678878@???????.???.???>
Content-Type: text/plain; charset=UTF-8
I happened to be listening on AO-91 at 1939UTC and was appalled at the lack
of etiquette on some stations working the satellite. One station in
particular was adamantly calling everyone on the satellite without letup !!
Nobody left any space in between calls to enable anyone else to make a
contact ! One station tried to make a call to an XE2 station but everyone
just jumped on top without let up !! I don't know what the answer is but it
sure is one reason that I do not work the FM birds very often. COME ON GUYS
... Courtesy is the name of the game .. If you have worked that station
before, don't call him/her again on the very next pass.. Sorry to be
running off at the mouth but this is definitely getting to be a problem !!
JACK KC7MG
------------------------------
Message: 5
Date: Tue, 08 May 2018 20:58:49 +0000
From: Caleb Smith <caleb@??????????.???>
To: alex weimer <ingejack@???.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] FM Sat Exhuberance
Message-ID:
<CAJZ5Lj8dBP603UaErKda6pH8evJW+GTK870P2omD+QaNE9cqSg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
While we're on this topic -- any tips for new hams wanting to work the
satellites? I've listened to about 5 passes but always feel like if I call
in I'll step over someone. Do I toss out just my call? A call and a grid?
Do I try to call someone else I heard? Generally I'd listen with an sdrplay
RSP2 and transmit with a cheap handheld, so I do have full duplex
capability.
On Tue, May 8, 2018, 2:51 PM alex weimer <ingejack@???.???> wrote:
> I happened to be listening on AO-91 at 1939UTC and was appalled at the
> lack of etiquette on some stations working the satellite. One station in
> particular was adamantly calling everyone on the satellite without letup !!
> Nobody left any space in between calls to enable anyone else to make a
> contact ! One station tried to make a call to an XE2 station but everyone
> just jumped on top without let up !! I don't know what the answer is but it
> sure is one reason that I do not work the FM birds very often. COME ON GUYS
> ... Courtesy is the name of the game .. If you have worked that station
> before, don't call him/her again on the very next pass.. Sorry to be
> running off at the mouth but this is definitely getting to be a problem !!
> JACK KC7MG
> _______________________________________________
> 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: Tue, 8 May 2018 14:12:58 -0700 (PDT)
From: Bob- W7LRD <w7lrd@???????.???>
To: amsat-bb <amsat-bb@?????.???>
Subject: [amsat-bb] cell tracking
Message-ID: <100627545.67405.1525813978609@???????.???????.???>
Content-Type: text/plain; charset=UTF-8
Hi All- I am looking for a tracking program for a motorola moto g5 plus-any
suggesdtions?
73 Bob W7LRD
Seattle
------------------------------
Message: 7
Date: Tue, 8 May 2018 17:15:35 -0400
From: Scott <scott23192@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] FM Sat Exhuberance
Message-ID:
<CAJCSnObtkCr08pcS1QEqNKYW+183s9MmGK0NVhAHZwoZXeRmnw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hey Caleb!
Some of the more experienced guys might reply with specific operating
suggestions, so you'll want to follow any such tips for sure.
But one thing I always like to mention to people is that all the satellites
are a lot less crowded late at night. I know everyone can't stay up late
on a regular basis, but if you can manage any of the late passes at least
occassionally, it sure makes it easier to get to know your equipment and
have some successful contacts. Unlike a busy weekend pass, for instance,
at night there's ample time for someone to let you know if your TX audio is
low or whatever.
Hope you enjoy satellite operating!
-Scott, K4KDR
========================
On Tue, May 8, 2018 at 4:58 PM, Caleb Smith <caleb@??????????.???> wrote:
> While we're on this topic -- any tips for new hams wanting to work the
> satellites? I've listened to about 5 passes but always feel like if I call
> in I'll step over someone. Do I toss out just my call? A call and a grid?
> Do I try to call someone else I heard? Generally I'd listen with an sdrplay
> RSP2 and transmit with a cheap handheld, so I do have full duplex
> capability.
------------------------------
Message: 8
Date: Tue, 8 May 2018 15:58:13 -0500
From: Oliver <mr.soup12@?????.???>
To: alex weimer <ingejack@???.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] FM Sat Exhuberance
Message-ID:
<CAD+wY0uX4SkF_fJudGuCCeGN=e=XdfxMT+Nuhr_ZuW0XpNvbog@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Operators like that do not read this list. Nor would they care.
Nor do most. Here at work, 'my message' is always more important then
yours. Even if it means neither of us will be heard.
On Tuesday, May 8, 2018, alex weimer <ingejack@???.???> wrote:
> I happened to be listening on AO-91 at 1939UTC and was appalled at the
> lack of etiquette on some stations working the satellite. One station in
> particular was adamantly calling everyone on the satellite without letup !!
> Nobody left any space in between calls to enable anyone else to make a
> contact ! One station tried to make a call to an XE2 station but everyone
> just jumped on top without let up !! I don't know what the answer is but it
> sure is one reason that I do not work the FM birds very often. COME ON GUYS
> ... Courtesy is the name of the game .. If you have worked that station
> before, don't call him/her again on the very next pass.. Sorry to be
> running off at the mouth but this is definitely getting to be a problem !!
> JACK KC7MG
> _______________________________________________
> 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: Tue, 8 May 2018 16:29:08 -0500
From: Joe <nss@???.???>
To: Oliver <mr.soup12@?????.???>, alex weimer <ingejack@???.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] FM Sat Exhuberance
Message-ID: <13637b1d-565c-90cf-4f08-eb832a41a3b0@???.???>
Content-Type: text/plain; charset=windows-1252; format=flowed
And this is the main reason I do NOT like the FM Birds.
Too much like "SKIP" on CH 19
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 5/8/2018 3:58 PM, Oliver wrote:
> Operators like that do not read this list. Nor would they care.
>
> Nor do most. Here at work, 'my message' is always more important then
> yours. Even if it means neither of us will be heard.
>
> On Tuesday, May 8, 2018, alex weimer <ingejack@???.???> wrote:
>
>> I happened to be listening on AO-91 at 1939UTC and was appalled at the
>> lack of etiquette on some stations working the satellite. One station in
>> particular was adamantly calling everyone on the satellite without letup !!
>> Nobody left any space in between calls to enable anyone else to make a
>> contact ! One station tried to make a call to an XE2 station but everyone
>> just jumped on top without let up !! I don't know what the answer is but it
>> sure is one reason that I do not work the FM birds very often. COME ON GUYS
>> ... Courtesy is the name of the game .. If you have worked that station
>> before, don't call him/her again on the very next pass.. Sorry to be
>> running off at the mouth but this is definitely getting to be a problem !!
>> JACK KC7MG
>> _______________________________________________
>> 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: 10
Date: Tue, 08 May 2018 21:30:32 +0000
From: John Brier <johnbrier@?????.???>
To: Caleb Smith <caleb@??????????.???>
Cc: ingejack@???.???? AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FM Sat Exhuberance
Message-ID:
<CALn0fKPBbWJN4TEOAYjqNs0purNBq6omZ9JOgRo4ETW3C3JOEw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hey Caleb,
I'd say since so many put their calls out it is more efficient to call
someone yourself.
73, John Brier KG4AKV
On Tue, May 8, 2018, 17:00 Caleb Smith <caleb@??????????.???> wrote:
> While we're on this topic -- any tips for new hams wanting to work the
> satellites? I've listened to about 5 passes but always feel like if I call
> in I'll step over someone. Do I toss out just my call? A call and a grid?
> Do I try to call someone else I heard? Generally I'd listen with an sdrplay
> RSP2 and transmit with a cheap handheld, so I do have full duplex
> capability.
>
> On Tue, May 8, 2018, 2:51 PM alex weimer <ingejack@???.???> wrote:
>
> > I happened to be listening on AO-91 at 1939UTC and was appalled at the
> > lack of etiquette on some stations working the satellite. One station in
> > particular was adamantly calling everyone on the satellite without letup
> !!
> > Nobody left any space in between calls to enable anyone else to make a
> > contact ! One station tried to make a call to an XE2 station but
> everyone
> > just jumped on top without let up !! I don't know what the answer is but
> it
> > sure is one reason that I do not work the FM birds very often. COME ON
> GUYS
> > ... Courtesy is the name of the game .. If you have worked that station
> > before, don't call him/her again on the very next pass.. Sorry to be
> > running off at the mouth but this is definitely getting to be a problem
> !!
> > JACK KC7MG
> > _______________________________________________
> > 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: 11
Date: Tue, 8 May 2018 21:39:54 +0000 (UTC)
From: "R.T.Liddy" <k8bl@?????????.???>
To: Caleb Smith <caleb@??????????.???>, alex weimer <ingejack@???.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FM Sats
Message-ID: <1288665023.1331910.1525815594383@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Caleb (Call???),
When you hear someone announce their Call or Call & Grid (Nobody calls CQ),
and there is no other QSO in progress, give their and from your Call
or Call & Grid. Always use standard phonetics and individual numbers.
Example:
(RX) Whiskey One Alpha Bravo, Fox November Two Zero
(TX) Whiskey One Alpha Bravo from Kilo Six Yankee Zulu
(RX) Kilo Six Yankee Zulu here is Whiskey One Alpha Bravo,
Fox November Two Zero, over
(TX) Whiskey One Alpha Bravo, QSL from Kilo Six Yankee Zulu,
Delta Mike One Four
(RX) QSL Seven Three from Whiskey One Alpha Bravo
Try to be quick before some else calls W1AB. If they do, wait for the
sequence to finish and call. If someone else announces their Call, you
can call them or W1AB. Or, you could announce your Call and see if someone
calls you. In any event, do not make any call if there is a QSO already
in progress. Remember, the FM birds are a shared resource and there may
be a number of Hams anxiously waiting to use it. Be fast and brief.
GL/73, Bob K8BL
________________________________
From: Caleb Smith <caleb@??????????.???>
To: alex weimer <ingejack@???.???>
Cc: amsat-bb@?????.???
Sent: Tuesday, May 8, 2018 4:59 PM
Subject: Re: [amsat-bb] FM Sat Exhuberance
While we're on this topic -- any tips for new hams wanting to work the
satellites? I've listened to about 5 passes but always feel like if I call
in I'll step over someone. Do I toss out just my call? A call and a grid?
Do I try to call someone else I heard? Generally I'd listen with an sdrplay
RSP2 and transmit with a cheap handheld, so I do have full duplex
capability.
On Tue, May 8, 2018, 2:51 PM alex weimer <ingejack@???.???> wrote:
> I happened to be listening on AO-91 at 1939UTC and was appalled at the
> lack of etiquette on some stations working the satellite. One station in
> particular was adamantly calling everyone on the satellite without letup !!
> Nobody left any space in between calls to enable anyone else to make a
> contact ! One station tried to make a call to an XE2 station but everyone
> just jumped on top without let up !! I don't know what the answer is but it
> sure is one reason that I do not work the FM birds very often. COME ON GUYS
> ... Courtesy is the name of the game .. If you have worked that station
> before, don't call him/her again on the very next pass.. Sorry to be
> running off at the mouth but this is definitely getting to be a problem !!
> JACK KC7MG
> _______________________________________________
> 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: 12
Date: Wed, 9 May 2018 08:22:43 +1000
From: John Mac <vk2fak@?????.???>
To: MICHAEL WILLIAMS <k9qho67622@???????.???>
Cc: amsat-bb@?????.???? k2gog@?????.???
Subject: Re: [amsat-bb] NASA Helical Antenna Question
Message-ID:
<CANiF7qOQD=1iDKUBiHtmfcFozotqKktNqbMMYVAHW2Hy8p7=MQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi all..
Is there any details on the web about this type of helix, have never seen
it with a ring reflector in books. I have seen a few different shapes of
reflector cup, and cone which can give a good increase in gain, but also
the extra gain is not wide bandwidth..
I run a 12 turn helix now
John
On Tue, May 8, 2018 at 11:27 PM, MICHAEL WILLIAMS <k9qho67622@???????.???>
wrote:
> I've been using a similar (home brew) helix (including ring reflector) on
> 70 cm since AO-40 days. It works very well (see my QRZ page). The one being
> discussed has an extra ring reflector.
> _______________________________________________
> 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: 13
Date: Wed, 9 May 2018 00:19:36 +0000 (UTC)
From: Mr B r a d <jhill_81@?????.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] SatPC32 packet and ts-2000 AMSAT-BB Digest,
Vol 13, Issue 156
Message-ID: <2121313655.1371964.1525825176536@????.?????.???>
Content-Type: text/plain; charset=UTF-8
-=-=-=-
I also found i could not rig control the ts2000 and use the internal TNC at
the same time.as ariss digi is 2 meters only maybe we dont need satpc32 to
control it for the passand we can switch from rig control to tnc mode ????
but I? use the rig control more...
I also have a signalink USB on the ACC jack but have not had enough play
timeto get it working on the one 10 minute pass before work.from what I have
read direwolf is the better for the sound card modemsbut im stuck now trying
to get it to switch up to usb codex(2) for this radio...?? anyone ???
I also have uz7ho(sp?) modem kinda working , it?decodes good but my transmit
audio tones don't stay locked? ????
can some one list a good working config of stuff to work the psat ?
it might be nice to run that psat mode and gate the traffic into aprs
network ,?but that is one more can of worms I have totally got out of
control nowwith it displaying all of the aprs traffic on earth and i only
want to see local RF.ko6kL
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End of AMSAT-BB Digest, Vol 13, Issue 159
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