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CX2SA > SATDIG 15.08.17 02:00l 809 Lines 27934 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Using DCI filters narrowband vs broadband (Robert Bruninga)
2. Icom combined RF gain and squelch knob (Peter Pauly)
3. Re: Modulation levels on AO-85 (jerry.tuyls@xxxxxxx.xxx
4. Re: Best SDR for satellite reception (Rick Walter)
5. Re: Best SDR for satellite reception (Andrew Rich)
6. Re: Using DCI filters narrowband vs broadband (Andrew Rich)
7. Sat Reporter Upgrade added NO44 NO84 (Andrew Rich)
8. Re: Best SDR for satellite reception (Edson W. R. Pereira)
9. Re: Best SDR for satellite reception (Graham Shirville)
10. Re: Best SDR for satellite reception (vk4tec@xxxxxxxxx.xx.xxxx
11. best tripod for the arrow II handheld antenna (Laura Tunnell)
12. Re: best tripod for the arrow II handheld antenna (Mike Diehl)
13. Re: best tripod for the arrow II handheld antenna (Bryan KL7CN)
14. Re: best tripod for the arrow II handheld antenna (John Brier)
----------------------------------------------------------------------
Message: 1
Date: Mon, 14 Aug 2017 12:45:38 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Using DCI filters narrowband vs broadband
Message-ID: <af9ac500ff03ed56c69b319e42a8b326@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Many people on AMSAT use DCI brand passband filters at their antennas to
cut down on front end overload and splatter from other services. These
multi-resonator filters typically cover several MHz of bandwidth to cover
entire sections of the Amateur Bands and block things out of band..
When I asked if they could be tuned narrower with all resonators favoring
the same single frequency, their answer kept coming back YES, the bandwidth
is 500 kHz. But they did not define what the ?bandwidth? meant.
Today, they sent me a revised spec sheet for their two meter filter when
tuned to a single frequency. Now they fully specify what the bandwidth
is. Here are the numbers:
- 3 dB is 0.5 MHz
-20 dB is 1.25 MHz
-40 dB is 2.3 MHz
-60 dB is 4 MHz
This is useful information for those needing a single frequency filter.
Bob, WB4APR
------------------------------
Message: 2
Date: Mon, 14 Aug 2017 13:17:10 -0400
From: Peter Pauly <ppauly@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Icom combined RF gain and squelch knob
Message-ID:
<CAKXfWbTXo381rqKbQB0fNs6V8zAxB5vF9AJ2KDGKJDB5E2H1aA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
The Icom 910H and 9100 radios have a combined RF gain and squelch knob. The
choice of settings are:
1. "rF/SqL" RF gain and squelch controls are combined for SSB/CW mode.
Acts as squelch control for FM mode.
2. "Auto" Acts as a gain control in SSB/CW mode and a Squelch control in
FM mode.
3. "SQL" Acts as squelch control for all modes. RF gain is set to
maximum level in this setting.
I'm tempted to choose the last option which sets the RF gain at maximum.
The default is number 1. I'd like to find something that works without
adjustment when switching back and forth between FM and SSB satellites.
What option are you using?
------------------------------
Message: 3
Date: Mon, 14 Aug 2017 19:27:29 +0200 (CEST)
From: jerry.tuyls@xxxxxxx.xx
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Modulation levels on AO-85
Message-ID:
<1165542169.90891698.1502731649191.JavaMail.zimbra@xxxxxxx.xx>
Content-Type: text/plain; charset=utf-8
Spending some time here by telling several times on AO-85 passes about bad
modulation to the same stations, but they DON'T listen.
Just ignoring them, because i cannot understand them on my TS-790/FT-847.No
narrow FM and no PL tone. Never got a problem.
And please...why do some stations upload logs with DWNlink freq on sat qso's
instead of the UPlink freq?
Always having some rejected qsl's because qso's don't match due to wrong
band. I log with VQlog, uplink and dwnlink freq etc, so i think the TX-freq
is most important for logging sat'qso's and not the RX-freq?
73's
Jerry,ON4CJQ
----- Oorspronkelijk bericht -----
Van: "R.T.Liddy" <k8bl@xxxxxxxxx.xxx>
Aan: "Matthew Stevens" <matthew@xxxxxxxxx.xxx>, "Joe" <nss@xxx.xxx>
Cc: "amsat-bb" <amsat-bb@xxxxx.xxx>
Verzonden: Maandag 14 augustus 2017 02:33:37
Onderwerp: Re: [amsat-bb] Modulation levels on AO-85
"...food in the mic hole, etc."!!! ?LOL!!! ?- Bob ?K8BL
From: Matthew Stevens <matthew@xxxxxxxxx.xxx>
To: Joe <nss@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Sent: Sunday, August 13, 2017 7:25 PM
Subject: Re: [amsat-bb] Modulation levels on AO-85
Like Jerry said, its more an issue with mic gain or poor mic technique than
anything else.
- Matthew nj4y
Sent from my iPad
> On Aug 13, 2017, at 19:18, Joe <nss@xxx.xxx> wrote:
>
> Plus a LOT of people are running Narrow Modulation now.
> Joe WB9SBD
> Sig
> The Original Rolling Ball Clock
> Idle Tyme
> Idle-Tyme.com
> http://www.idle-tyme.com
>> On 8/13/2017 6:14 PM, Jerry Buxton wrote:
>> 5 kHz is the nominal "wide" setting for ham radio equipment on the
>> VHF/UHF bands.? So a rig set to 5 kHz is what we all usually expect.
>> 5 kHz deviation with 3 kHz audio (the usual top for most voice) would be
>> about 16 kHz bandwidth.? The deviation number alone is not equal to
>> bandwidth.? ("Carson's Rule")
>> Low audio is usually just that, not talking loud enough, not talking
>> into the mic properly, mic gain setting too low, food in the mic hole, etc.
>>
>> Jerry Buxton, N?JY
>>
>>> On 8/13/2017 17:55, Ronald G. Parsons wrote:
>>> I?ve noticed lately that many stations on AO-85 have barely audible
modulation. Yet other stations have clear audio with good quieting. I have
heard the some manufacturers of hand-held and mobile rigs are setting their
maximum deviation to 5 kHz or even less. I have noticed the same effect on
local repeaters. Has anyone done any tests of the deviation required for
reasonable quieting on AO-85? Or are more stations using lower power than in
the past?
>>>
>>> Ron W5RKN
>>> _______________________________________________
>>> 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
>
> _______________________________________________
> 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
| | Virus-free. www.avast.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: 4
Date: Mon, 14 Aug 2017 14:53:49 -0400
From: Rick Walter <wb3csy@xxxxx.xxx>
To: amsat-bb@xxxxxx.xxx
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Message-ID: <9F473DD3-5D07-4263-9DE1-A50213BA3F6D@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Great response Patrick. We all know you get what you pay for. Please
continue telling us about your evaluations and experiences. I highly value
your opinion and observations. I have a FCD Pro +, a SDR Play as well as the
special dongle to receive the Outernet from the geosynchronous bird, and
another dongle I currently use to send realtime Flight Aware data from my
location. Keep up the good work. Please continue to share your valuable
information, Patrick.
73,
Rick - WB3CSY
Sent from Rick's iPhone 6S
"Great spirits have always encountered violent opposition from mediocre
minds" - Albert Einstein
"Any sufficiently advanced technology is indistinguishable from magic" -
Arthur C. Clarke
"Klaatu Barada Nikto" - The Day the Earth Stood Still
>
------------------------------
Message: 5
Date: Tue, 15 Aug 2017 05:05:55 +1000
From: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
To: Rick Walter <wb3csy@xxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Message-ID: <9D1CB67B-FB35-479A-9860-BAEBF418CB13@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset=us-ascii
RTL-SDR - $30 8 bits 2 MHz sample subject to overload
HackRF $280 - birdies but can TX and RX 10 MHz to 6 GHz - good for GNU Radio
Playing 12 bits 20 MHz
SDR Play - $300 - Nice lots of filters a good allrounder -
Airspy Mini - $200 Nice and compact medium perfromer
FCD Plus - $300 a winner on 2 meters and 70 centimetres
I would love to get my hands on a commercial SDR
Andrew
> On 15 Aug 2017, at 4:53 am, Rick Walter <wb3csy@xxxxx.xxx> wrote:
>
> Great response Patrick. We all know you get what you pay for. Please
continue telling us about your evaluations and experiences. I highly value
your opinion and observations. I have a FCD Pro +, a SDR Play as well as the
special dongle to receive the Outernet from the geosynchronous bird, and
another dongle I currently use to send realtime Flight Aware data from my
location. Keep up the good work. Please continue to share your valuable
information, Patrick.
> 73,
> Rick - WB3CSY
>
> Sent from Rick's iPhone 6S
> "Great spirits have always encountered violent opposition from mediocre
minds" - Albert Einstein
>
> "Any sufficiently advanced technology is indistinguishable from magic" -
Arthur C. Clarke
>
> "Klaatu Barada Nikto" - The Day the Earth Stood Still
>>
> _______________________________________________
> 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: Tue, 15 Aug 2017 05:07:43 +1000
From: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
To: Robert Bruninga <bruninga@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Using DCI filters narrowband vs broadband
Message-ID: <8AB6B362-82D4-4839-8B6A-A3EE5FBB9156@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset=utf-8
I get pagers on 148 making birdies on an RTL-SDR on 144 MHz
Hoping the funcube will be better
A
> On 15 Aug 2017, at 2:45 am, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>
> Many people on AMSAT use DCI brand passband filters at their antennas to
> cut down on front end overload and splatter from other services. These
> multi-resonator filters typically cover several MHz of bandwidth to cover
> entire sections of the Amateur Bands and block things out of band..
>
>
>
> When I asked if they could be tuned narrower with all resonators favoring
> the same single frequency, their answer kept coming back YES, the bandwidth
> is 500 kHz. But they did not define what the ?bandwidth? meant.
>
>
>
> Today, they sent me a revised spec sheet for their two meter filter when
> tuned to a single frequency. Now they fully specify what the bandwidth
> is. Here are the numbers:
>
>
>
> - 3 dB is 0.5 MHz
>
> -20 dB is 1.25 MHz
>
> -40 dB is 2.3 MHz
>
> -60 dB is 4 MHz
>
>
>
> This is useful information for those needing a single frequency filter.
>
>
>
> Bob, WB4APR
> _______________________________________________
> 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: 7
Date: Tue, 15 Aug 2017 05:09:52 +1000
From: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Sat Reporter Upgrade added NO44 NO84
Message-ID: <DA2E35B3-6B0F-4A0B-942D-45262E4B62B6@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset=us-ascii
Hello
Added in NO-44 and NO-88
Cheers
http://59.167.159.165 <http://59.167.159.165/>
------------------------------
Message: 8
Date: Mon, 14 Aug 2017 17:08:17 -0300
From: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
To: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Message-ID:
<CALNQy48EMqbknD-LSTyzAriS=CEgz+VM0GsBBzG5R2L79pHEmA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Rick's list is very good. I would also add LimeSDR as a good candidate (I
don't yet own one).
I have been using the RTL-SDR (original black one with the R820T chip),
RTL-SDR (Nooelec metal case with R820T2), RTL-SDR (blue with TCXO and
R820T2), Funcube Dongle Pro, Funcube Dongle Pro+ (FCD+) and SDRPlay RSP2.
The RTLs are "ok" for casual testing and signal hunting -- specially on the
bench. But their limited dynamic range, lack of band-pass filtering, high
noise figure and low ADC bit depth prevent using them in any serious
activity. I do however use the Nooelec for some 10 GHz experimentation
(with a LNBF). For monitoring satellites on VHF/UHF, I find the FCD+ the
best performer. The filtering, dynamic range and sensitivity is quite good.
The SDRPlay is also a very good performer, but it requires some careful
adjustments to perform as well as the FCD+.
73, Edson PY2SDR
On Mon, Aug 14, 2017 at 4:05 PM, Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
wrote:
> RTL-SDR - $30 8 bits 2 MHz sample subject to overload
> HackRF $280 - birdies but can TX and RX 10 MHz to 6 GHz - good for GNU
> Radio Playing 12 bits 20 MHz
> SDR Play - $300 - Nice lots of filters a good allrounder -
> Airspy Mini - $200 Nice and compact medium perfromer
> FCD Plus - $300 a winner on 2 meters and 70 centimetres
>
> I would love to get my hands on a commercial SDR
>
> Andrew
>
>
>
>
>
> > On 15 Aug 2017, at 4:53 am, Rick Walter <wb3csy@xxxxx.xxx> wrote:
> >
> > Great response Patrick. We all know you get what you pay for. Please
> continue telling us about your evaluations and experiences. I highly value
> your opinion and observations. I have a FCD Pro +, a SDR Play as well as
> the special dongle to receive the Outernet from the geosynchronous bird,
> and another dongle I currently use to send realtime Flight Aware data from
> my location. Keep up the good work. Please continue to share your valuable
> information, Patrick.
> > 73,
> > Rick - WB3CSY
> >
> > Sent from Rick's iPhone 6S
> > "Great spirits have always encountered violent opposition from mediocre
> minds" - Albert Einstein
> >
> > "Any sufficiently advanced technology is indistinguishable from magic" -
> Arthur C. Clarke
> >
> > "Klaatu Barada Nikto" - The Day the Earth Stood Still
> >>
> > _______________________________________________
> > 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
>
------------------------------
Message: 9
Date: Mon, 14 Aug 2017 22:38:49 +0100
From: Graham Shirville <g.shirville@xxxxxxxxxx.xxx>
To: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>, Andrew Rich
<vk4tec@xxxxxxxxx.xx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Message-ID: <c8c6c536-0557-a1c7-1e72-8f1a3221a739@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi All,
I could possibly be seen as slightly biased but i agree with Edson!
I have tried a number of other SDRs (including an early LIme) and for
satellite work, unless you need more than 192kHz bandwidth, the FCD+
still gets my vote. Its filtering is robust in almost any high QRM
environment and it even seems to magically survive the odd unintentional
burst of RF transmitted directly into it.
73
Graham
G3VZV
On 14/08/2017 21:08, Edson W. R. Pereira wrote:
> Rick's list is very good. I would also add LimeSDR as a good candidate (I
> don't yet own one).
>
> I have been using the RTL-SDR (original black one with the R820T chip),
> RTL-SDR (Nooelec metal case with R820T2), RTL-SDR (blue with TCXO and
> R820T2), Funcube Dongle Pro, Funcube Dongle Pro+ (FCD+) and SDRPlay RSP2.
> The RTLs are "ok" for casual testing and signal hunting -- specially on the
> bench. But their limited dynamic range, lack of band-pass filtering, high
> noise figure and low ADC bit depth prevent using them in any serious
> activity. I do however use the Nooelec for some 10 GHz experimentation
> (with a LNBF). For monitoring satellites on VHF/UHF, I find the FCD+ the
> best performer. The filtering, dynamic range and sensitivity is quite good.
> The SDRPlay is also a very good performer, but it requires some careful
> adjustments to perform as well as the FCD+.
>
> 73, Edson PY2SDR
>
> On Mon, Aug 14, 2017 at 4:05 PM, Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
> wrote:
>
------------------------------
Message: 10
Date: Tue, 15 Aug 2017 08:27:07 +1000
From: <vk4tec@xxxxxxxxx.xx.xxx>
To: "'Graham Shirville'" <g.shirville@xxxxxxxxxx.xxx>, "'Edson W. R.
Pereira'" <ewpereira@xxxxx.xxx>
Cc: 'Amsat BB' <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Message-ID: <03db01d3154c$774932e0$65db98a0$@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset="utf-8"
I am liking the AirSpy mini but will wait for the funcube dongle
A
-----Original Message-----
From: Graham Shirville [mailto:g.shirville@xxxxxxxxxx.xxxx
Sent: Tuesday, 15 August 2017 7:39 AM
To: Edson W. R. Pereira <ewpereira@xxxxx.xxx>; Andrew Rich
<vk4tec@xxxxxxxxx.xx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Best SDR for satellite reception
Hi All,
I could possibly be seen as slightly biased but i agree with Edson!
I have tried a number of other SDRs (including an early LIme) and for
satellite work, unless you need more than 192kHz bandwidth, the FCD+ still
gets my vote. Its filtering is robust in almost any high QRM environment and
it even seems to magically survive the odd unintentional burst of RF
transmitted directly into it.
73
Graham
G3VZV
On 14/08/2017 21:08, Edson W. R. Pereira wrote:
> Rick's list is very good. I would also add LimeSDR as a good candidate
> (I don't yet own one).
>
> I have been using the RTL-SDR (original black one with the R820T
> chip), RTL-SDR (Nooelec metal case with R820T2), RTL-SDR (blue with
> TCXO and R820T2), Funcube Dongle Pro, Funcube Dongle Pro+ (FCD+) and
SDRPlay RSP2.
> The RTLs are "ok" for casual testing and signal hunting -- specially
> on the bench. But their limited dynamic range, lack of band-pass
> filtering, high noise figure and low ADC bit depth prevent using them
> in any serious activity. I do however use the Nooelec for some 10 GHz
> experimentation (with a LNBF). For monitoring satellites on VHF/UHF, I
> find the FCD+ the best performer. The filtering, dynamic range and
sensitivity is quite good.
> The SDRPlay is also a very good performer, but it requires some
> careful adjustments to perform as well as the FCD+.
>
> 73, Edson PY2SDR
>
> On Mon, Aug 14, 2017 at 4:05 PM, Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
> wrote:
>
------------------------------
Message: 11
Date: Mon, 14 Aug 2017 13:55:44 -0700
From: "Laura Tunnell" <drlnt@xxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] best tripod for the arrow II handheld antenna
Message-ID: <001e01d3153f$b6c31ec0$24495c40$@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
What is best tripod for the arrow II handheld antenna ?
------------------------------
Message: 12
Date: Mon, 14 Aug 2017 16:23:44 -0700
From: Mike Diehl <diehl.mike.a@xxxxx.xxx>
To: Laura Tunnell <drlnt@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] best tripod for the arrow II handheld antenna
Message-ID: <E33C24FC-8B48-4384-9E47-0672D39F52FC@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I find a biped to work best with an arrow antenna. Works great for aiming
and polarity matching.
73,
Mike Diehl
AI6GS
> On Aug 14, 2017, at 1:55 PM, Laura Tunnell <drlnt@xxx.xxx> wrote:
>
> What is best tripod for the arrow II handheld antenna ?
>
>
>
>
>
> _______________________________________________
> 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: 13
Date: Mon, 14 Aug 2017 16:33:56 -0700
From: Bryan KL7CN <bryan@xxxxx.xxx>
To: Mike Diehl <diehl.mike.a@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx Laura Tunnell <drlnt@xxx.xxx>
Subject: Re: [amsat-bb] best tripod for the arrow II handheld antenna
Message-ID: <AB3BDC12-2F91-432E-81C9-AEFE8756DD1E@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Mike's being funny. :)
I used to use a $10 tripod I got from the Goodwill. The main thing I
appreciated about it was its ability to do axial rotation -- think: camera
on its side. When the Arrow was attached, I would us that feature to rotate
the Arrow along its axis.
Nowadays I do what Mike does: I hold the Arrow in my hand. It takes some
time to become comfortable with holding the antenna correctly while
adjusting for Doppler and pressing the mic button, but after some practice I
found it to be the most efficient way. It's counterintuitive, but using your
hand to orient the antenna is very fast and flexible.
-- bag
Bryan KL7CN/W6
Location: CM98, usually
E-Mail: bryan@xxxxx.xxx
Telephone/SMS: 408-836-7279
> On Aug 14, 2017, at 16:23, Mike Diehl <diehl.mike.a@xxxxx.xxx> wrote:
>
> I find a biped to work best with an arrow antenna. Works great for aiming
and polarity matching.
>
> 73,
>
> Mike Diehl
> AI6GS
>
>> On Aug 14, 2017, at 1:55 PM, Laura Tunnell <drlnt@xxx.xxx> wrote:
>>
>> What is best tripod for the arrow II handheld antenna ?
>>
>>
>>
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------------------------------
Message: 14
Date: Mon, 14 Aug 2017 19:46:45 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: Laura Tunnell <drlnt@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] best tripod for the arrow II handheld antenna
Message-ID:
<CALn0fKO=swfJ9Y1vkuNW1M1eSrT6bSBEC6bpy2UHsGNWk=n9OQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
I prefer holding the antenna myself but whatever you get make sure it's
heavy enough to not fall over from the weight of the antenna. You may need
a counterweight on the end of the antenna and/or something hung off the
inside center of the tripod if it has a hook to do that like some do.
You should know the back of the antenna boom has been tapped for the
standard tripod mount screw, however the boom doesnt provide a lot of
"depth" or threads to really hold it well. Some people clamp the boom to
their tripod for extra security.
The best tripod setup I've seen is the one John, K8YSE has.
I believe he had a DJ speaker stand (speaker tripod) and an extra half
arrow boom section from a backpacker Arrow stuck in his main arrow, with
the extra section stuck in a tube which was fixed to the tripod. The extra
section rotated inside the tube allowing for easy polarity switching. With
the antenna sticking out farther away from the tripod than it otherwise
would without the extra section, its elements didn't hit the tripod.
It was big though, so maybe not the best depending on your use case.
How do you plan to use it? On the back of your porch/in yard, roving, etc.
etc?
73, John Brier KG4AKV
On Aug 14, 2017 7:20 PM, "Laura Tunnell" <drlnt@xxx.xxx> wrote:
> What is best tripod for the arrow II handheld antenna ?
>
>
>
>
>
> _______________________________________________
> 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
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------------------------------
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
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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 202
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