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CX2SA > SATDIG 13.04.19 20:40l 761 Lines 26061 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Tutorial on Working APRS Contacts on Kenwood TM-D710
(Patrick STODDARD (WD9EWK/VA7EWK))
2. Re: Tutorial on Working APRS Contacts on Kenwood TM-D710
(John Brier)
3. Australian CubeSat to use 76 GHz (Zach Metzinger)
4. Re: Tutorial on Working APRS Contacts on Kenwood TM-D710
(Ryan Noguchi)
5. Re: Tutorial on Working APRS Contacts on Kenwood TM-D710
(Ryan Noguchi)
6. G5500 - replacement boom clamps? (Ken Swaggart)
7. Re: G5500 - replacement boom clamps? (Roy Dean)
8. Re: Tutorial on Working APRS Contacts on Kenwood TM-D710
(Frank Karnauskas)
9. Re: G5500 - replacement boom clamps? (W3AB/GEO)
10. Re: Australian CubeSat to use 76 GHz (W3AB/GEO)
11. Re: G5500 - replacement boom clamps? (Roy Dean)
12. Re: G5500 - replacement boom clamps? (Ken Swaggart)
13. Re: G5500 - replacement boom clamps? (k6vug@?????????.????
----------------------------------------------------------------------
Message: 1
Date: Sat, 13 Apr 2019 15:29:47 +0000
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@??????.???>
To: AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Message-ID:
<CAN6TEUfh04f3RcbcGFBadaCkUw2+fZxWB=czOmY+ZbUkTdA7Qw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi John!
Have you tried editing the status text field on an APRS-ready
HT or mobile radio? Lots of keypresses to make the change. It
would be easier for someone using software like UISS to type
a few characters in that field. For someone with a TH-D72, you
could end up with 20 to almost 40 keypresses to change a call
sign in a status text field. It is similar for those using a
mobile radio like a TM-D710G, where you press buttons on the
microphone's DTMF keypad to make those changes. It is much
easier for the users of the APRS-ready transceivers to pull a
call sign from a listing, and in a few keypresses send a
message to that call sign, instead of editing the status text
to do the same thing.
I know of one west-coast station that uses the status text to
make contacts with other stations. I don't think that station
is using a radio like a TM-D710G to work the passes. For the
rest of us with the APRS-ready transceivers, we use the messages
back and forth. We can see when a station sends a message to
another station, and can quickly make calls with messages
compared to the longer time needed to edit a status text field
to do the same thing.
Unfortunately, the Kenwood and Yaesu APRS-ready transceivers
faithfully implement APRS, where UISS deviates from it slightly
for messaging. UISS allows the user to disable the use of ACK
packets when sending messages. UISS will send an ACK packet, if
an incoming message requests it, but at least those users have
the option of not using ACKs on their own messages to others.
Now if the APRS standard provided a way for ACKs to be optional,
and Kenwood and Yaesu implemented this change (i.e., a menu
option where the ACK requirement for outgoing messages could be
disabled)... I wonder who could propose changes to APRS... :-)
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @?????? or http://twitter.com/WD9EWK
On Sat, Apr 13, 2019 at 2:26 PM John Brier via AMSAT-BB <amsat-bb@?????.???>
wrote:
> Thanks for explaining Bob. I wasn't clear on just how much "heavier" APRS
> packets were.
>
> It would definitely take a concerted effort to get people to use STATUS
> messages more.
>
> 73, John Brier KG4AKV
>
>
>
------------------------------
Message: 2
Date: Sat, 13 Apr 2019 11:37:00 -0400
From: John Brier <johnbrier@?????.???>
To: amsat-bb@??????.???
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Message-ID:
<CALn0fKNQktv-xPd6U0ZrEgFxRBnbqj4jKfFVE7QBCVv8gOfb0g@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
That's what I thought Patrick. IIRC you actually have to go into the menu
to change it. I thought Bob knew another way or I was missing something.
If the menu is the only way to change the status message that is not a
realistic way to make a QSO with the TH-D72 and similar radios.
73, John Brier KG4AKV
On Sat, Apr 13, 2019, 11:31 Patrick STODDARD (WD9EWK/VA7EWK) via AMSAT-BB <
amsat-bb@?????.???> wrote:
> Hi John!
>
> Have you tried editing the status text field on an APRS-ready
> HT or mobile radio? Lots of keypresses to make the change. It
> would be easier for someone using software like UISS to type
> a few characters in that field. For someone with a TH-D72, you
> could end up with 20 to almost 40 keypresses to change a call
> sign in a status text field. It is similar for those using a
> mobile radio like a TM-D710G, where you press buttons on the
> microphone's DTMF keypad to make those changes. It is much
> easier for the users of the APRS-ready transceivers to pull a
> call sign from a listing, and in a few keypresses send a
> message to that call sign, instead of editing the status text
> to do the same thing.
>
> I know of one west-coast station that uses the status text to
> make contacts with other stations. I don't think that station
> is using a radio like a TM-D710G to work the passes. For the
> rest of us with the APRS-ready transceivers, we use the messages
> back and forth. We can see when a station sends a message to
> another station, and can quickly make calls with messages
> compared to the longer time needed to edit a status text field
> to do the same thing.
>
> Unfortunately, the Kenwood and Yaesu APRS-ready transceivers
> faithfully implement APRS, where UISS deviates from it slightly
> for messaging. UISS allows the user to disable the use of ACK
> packets when sending messages. UISS will send an ACK packet, if
> an incoming message requests it, but at least those users have
> the option of not using ACKs on their own messages to others.
> Now if the APRS standard provided a way for ACKs to be optional,
> and Kenwood and Yaesu implemented this change (i.e., a menu
> option where the ACK requirement for outgoing messages could be
> disabled)... I wonder who could propose changes to APRS... :-)
>
> 73!
>
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
> Twitter: @?????? or http://twitter.com/WD9EWK
>
>
>
>
>
> On Sat, Apr 13, 2019 at 2:26 PM John Brier via AMSAT-BB <
> amsat-bb@?????.???>
> wrote:
>
> > Thanks for explaining Bob. I wasn't clear on just how much "heavier" APRS
> > packets were.
> >
> > It would definitely take a concerted effort to get people to use STATUS
> > messages more.
> >
> > 73, John Brier KG4AKV
> >
> >
> >
> _______________________________________________
> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Sat, 13 Apr 2019 10:51:11 -0500
From: Zach Metzinger <zmetzing@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Australian CubeSat to use 76 GHz
Message-ID: <2876c2d3-2691-1bce-77b5-57e8d423b8b4@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Posted on anther list by WA5JAT:
https://amsat-uk.org/2019/04/12/australian-cubesat-to-use-76-ghz/
Uplinks specified on that page, but no data as to if they are purely
digital, analog, etc.
--- Zach
N0ZGO
------------------------------
Message: 4
Date: Sat, 13 Apr 2019 16:07:55 +0000 (UTC)
From: Ryan Noguchi <ai6do@?????.???>
To: AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Message-ID: <1775874235.3125756.1555171675026@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I've tried what Bob WB4APR suggests a few times, as a test for last year's
Field Day, and while I agree it's a more efficient use of packets, I found
it to be impractical when using an HT in one hand and the antenna in the
other. It would work much better if you and the stations you want to QSO
with are using software like UISS rather than the keypad interface on an HT.?
Part of the problem is that a lot of ops still use SSIDs when transmitting
to the packet satellites, which is not really necessary and complicates the
problem of having to memorize a call to type it in manually on another
screen buried several clicks away in a menu. There's also the "chicken and
the egg" problem, where one op using a "nonstandard" protocol isn't going to
make a lot of QSOs when everyone else is using an incompatible protocol. Is
everyone going to click several screens into each received position packet
to see if their call is listed in the STATUS field? (Which is, again, added
overhead that HT users have to go through.) Checking to see if you've been
digipeated to know when to stop sending your packets? Yet another
complication that's easier said than done when using an HT.?
On the Kenwood D72 and D74 HTs, it's very easy to send a reply message to a
station whose position or message packet you've received, and also very easy
to stop automated resends, e.g., when you've gotten a response message, when
you know the other station is out of the footprint, or when you realize that
you're trying to QSO with an unattended station.?
Until I see a significant shift of usage toward Bob's proposed QSO protocol,
I plan to continue to use Patrick WD9EWK's very effective QSO protocol,
which is much more practical for HT operation and is the de facto standard.
I often check position packets' status messages in case someone else is
using Bob WB4APR's protocol, but have found it to be rare, and it's an order
of magnitude faster to just send them a message packet in response.?
73, Ryan AI6DO
On Saturday, April 13, 2019, 8:31:51 AM PDT, Patrick STODDARD
(WD9EWK/VA7EWK) via AMSAT-BB <amsat-bb@?????.???> wrote:
Hi John!
Have you tried editing the status text field on an APRS-ready
HT or mobile radio? Lots of keypresses to make the change. It
would be easier for someone using software like UISS to type
a few characters in that field. For someone with a TH-D72, you
could end up with 20 to almost 40 keypresses to change a call
sign in a status text field. It is similar for those using a
mobile radio like a TM-D710G, where you press buttons on the
microphone's DTMF keypad to make those changes. It is much
easier for the users of the APRS-ready transceivers to pull a
call sign from a listing, and in a few keypresses send a
message to that call sign, instead of editing the status text
to do the same thing.
I know of one west-coast station that uses the status text to
make contacts with other stations. I don't think that station
is using a radio like a TM-D710G to work the passes. For the
rest of us with the APRS-ready transceivers, we use the messages
back and forth. We can see when a station sends a message to
another station, and can quickly make calls with messages
compared to the longer time needed to edit a status text field
to do the same thing.
Unfortunately, the Kenwood and Yaesu APRS-ready transceivers
faithfully implement APRS, where UISS deviates from it slightly
for messaging. UISS allows the user to disable the use of ACK
packets when sending messages. UISS will send an ACK packet, if
an incoming message requests it, but at least those users have
the option of not using ACKs on their own messages to others.
Now if the APRS standard provided a way for ACKs to be optional,
and Kenwood and Yaesu implemented this change (i.e., a menu
option where the ACK requirement for outgoing messages could be
disabled)... I wonder who could propose changes to APRS...? :-)
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @?????? or http://twitter.com/WD9EWK
On Sat, Apr 13, 2019 at 2:26 PM John Brier via AMSAT-BB <amsat-bb@?????.???>
wrote:
> Thanks for explaining Bob. I wasn't clear on just how much "heavier" APRS
> packets were.
>
> It would definitely take a concerted effort to get people to use STATUS
> messages more.
>
> 73, John Brier KG4AKV
------------------------------
Message: 5
Date: Sat, 13 Apr 2019 16:23:14 +0000 (UTC)
From: Ryan Noguchi <ai6do@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Message-ID: <1579475267.2631156.1555172594672@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Agreed that Patrick WD9EWK is the go-to guru for packet satellite ops using
HTs. That file you linked to talks to settings on the TM-D710 but some of
the articles (in PDF format) in this other folder on his Dropbox site
(https://www.dropbox.com/sh/v3byggtuqw33fkk/AAD0oRWpOkXYYBQRqDSs9s-za/TH-D72A?
dl=0&lst=&subfolder_nav_tracking=1) provide some more complete context on
the flow of packet QSOs and are worth a read even if you aren't using the
Kenwood APRS-ready HTs. The one on FalconSat-3 ops also discusses settings
for the TM-D710.?
73, Ryan AI6DO
On Saturday, April 13, 2019, 3:42:55 AM PDT, Don KB2YSI via AMSAT-BB
<amsat-bb@?????.???> wrote:
Might not be a video, but Patrick's writeups have been very helpful to me:
https://www.dropbox.com/sh/v3byggtuqw33fkk/AACqTTz41vduG0sdrjmsJNhJa/TM-D710G/
TMD710G_config_for_orbiting_digis-WD9EWK.pdf?dl=0
On Sat, Apr 13, 2019, 03:12 Les Rayburn via AMSAT-BB <amsat-bb@?????.???>
wrote:
> Searching YouTube and Google without a lot of success. I?ve found videos
> on how to set up the TM-D710 for APRS QSO?s, but nothing that demonstrates
> the actual steps involved in completing a contact.
>
> Should I ?beacon? a message that says ?CQ DE N1LF EM63 K?? How will I know
> if I?m getting a response? Do I then transmit pre-programmed user messages?
> How do I enter the other stations call sign on the fly? How do I switch to
> the next message?
>
> I really need a ?for dummies? guide on this?and can?t seem to find it.
>
> Can anyone point me towards an article or YouTube video?
>
>
> 73,
>
> Les Rayburn, N1LF
> Maylene, AL
> EM63nf
> AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member
>
>
>
>
> _______________________________________________
> 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: https://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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Sat, 13 Apr 2019 09:26:16 -0700
From: "Ken Swaggart" <k.swaggart@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] G5500 - replacement boom clamps?
Message-ID: <002401d4f215$9f0532a0$dd0f97e0$@???????.???>
Content-Type: text/plain; charset="us-ascii"
After 17 years in a coastal environment, the G5500 boom clamps are severely
rusted and need to be replaced. Anyone know of a replacement candidate,
preferably stainless steel?
Picture at:
https://www.dropbox.com/s/6jxdcwg42z3awew/20190413_rusted%20rotor%20boom%20c
lamps.jpg?dl=0
Tnx,
Ken, W7KKE
------------------------------
Message: 7
Date: Sat, 13 Apr 2019 12:35:18 -0400
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] G5500 - replacement boom clamps?
Message-ID:
<CADGPg2tF-6eB1XcXxoMUzgJpDth=i2DPaDnT3H97Te_3i632cw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
You could try searching for stainless steel exhaust clamps - as some of
them are the same design. Not sure if you'll be able to find the right
diameter, though.
--Roy
K3RLD
------------------------------
Message: 8
Date: Sat, 13 Apr 2019 10:09:19 -0700
From: "Frank Karnauskas" <n1uw@???????.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Message-ID: <000001d4f21b$a658c020$f30a4060$@???????.???>
Content-Type: text/plain; charset="us-ascii"
Wouldn't it be nice if the TH-D74 allowed the use of a Bluetooth
keyboard!
73,
Frank
FRANK W. KARNAUSKAS, N1UW
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of
Patrick STODDARD (WD9EWK/VA7EWK) via AMSAT-BB
Sent: Saturday, April 13, 2019 8:30 AM
To: AMSAT
Subject: Re: [amsat-bb] Tutorial on Working APRS Contacts on Kenwood
TM-D710
Hi John!
Have you tried editing the status text field on an APRS-ready
HT or mobile radio? Lots of keypresses to make the change. It
would be easier for someone using software like UISS to type
a few characters in that field. For someone with a TH-D72, you
could end up with 20 to almost 40 keypresses to change a call
sign in a status text field. It is similar for those using a
mobile radio like a TM-D710G, where you press buttons on the
microphone's DTMF keypad to make those changes. It is much
easier for the users of the APRS-ready transceivers to pull a
call sign from a listing, and in a few keypresses send a
message to that call sign, instead of editing the status text
to do the same thing.
I know of one west-coast station that uses the status text to
make contacts with other stations. I don't think that station
is using a radio like a TM-D710G to work the passes. For the
rest of us with the APRS-ready transceivers, we use the messages
back and forth. We can see when a station sends a message to
another station, and can quickly make calls with messages
compared to the longer time needed to edit a status text field
to do the same thing.
Unfortunately, the Kenwood and Yaesu APRS-ready transceivers
faithfully implement APRS, where UISS deviates from it slightly
for messaging. UISS allows the user to disable the use of ACK
packets when sending messages. UISS will send an ACK packet, if
an incoming message requests it, but at least those users have
the option of not using ACKs on their own messages to others.
Now if the APRS standard provided a way for ACKs to be optional,
and Kenwood and Yaesu implemented this change (i.e., a menu
option where the ACK requirement for outgoing messages could be
disabled)... I wonder who could propose changes to APRS... :-)
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @?????? or http://twitter.com/WD9EWK
On Sat, Apr 13, 2019 at 2:26 PM John Brier via AMSAT-BB
<amsat-bb@?????.???>
wrote:
> Thanks for explaining Bob. I wasn't clear on just how much "heavier"
APRS
> packets were.
>
> It would definitely take a concerted effort to get people to use
STATUS
> messages more.
>
> 73, John Brier KG4AKV
>
>
>
_______________________________________________
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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Sat, 13 Apr 2019 10:19:36 -0700
From: W3AB/GEO <w3ab@?????.???>
To: Roy Dean <royldean@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] G5500 - replacement boom clamps?
Message-ID: <d0115853-6ddd-4664-a77d-9d74adcf4421@?????.???>
Content-Type: text/plain; charset=UTF-8
The U clamps are metric. That said one can probably find an approximate fit
at an industrial supply house like McMaster-Carr.
?___
Sent from my two way wrist watch
73 de W3AB/GEO?
On Apr 13, 2019, 09:36, at 09:36, Roy Dean via AMSAT-BB <amsat-bb@?????.???>
wrote:
>You could try searching for stainless steel exhaust clamps - as some of
>them are the same design. Not sure if you'll be able to find the
>right
>diameter, though.
>
>--Roy
>K3RLD
>_______________________________________________
>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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Sat, 13 Apr 2019 10:26:28 -0700
From: W3AB/GEO <w3ab@?????.???>
To: Zach Metzinger <zmetzing@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] Australian CubeSat to use 76 GHz
Message-ID: <f791090a-1f2b-4f37-86f5-8a10c6ec49c5@?????.???>
Content-Type: text/plain; charset=UTF-8
4) Communication Protocols Modulation techniques that will be investigated
for the high-speed communications experiment include QPSK, 16-QAM and CPFM.
If successful, this technology for wavelengths below 10 cm will increase the
data transfer rates by at least 4 orders of magnitude while also decreasing
the sizes of antennas and the associated spacecraft.
?___
Sent from my two way wrist watch
73 de W3AB/GEO?
On Apr 13, 2019, 08:52, at 08:52, Zach Metzinger via AMSAT-BB
<amsat-bb@?????.???> wrote:
>
>Posted on anther list by WA5JAT:
>
>https://amsat-uk.org/2019/04/12/australian-cubesat-to-use-76-ghz/
>
>Uplinks specified on that page, but no data as to if they are purely
>digital, analog, etc.
>
>--- Zach
>N0ZGO
>_______________________________________________
>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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 11
Date: Sat, 13 Apr 2019 13:57:41 -0400
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] G5500 - replacement boom clamps?
Message-ID:
<CADGPg2uy1b31pB4RP++qgrTL3GumBkz0NCuyZK98Dqmtc8sRsw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
>
> The U clamps are metric. That said one can probably find an approximate
> fit at an industrial supply house like McMaster-Carr.
Well, the entire automotive industry is metric (even what's left of "the
big three"), so this shouldn't eliminate the possibility of using exhaust
clamps.
--Roy
K3RLD
------------------------------
Message: 12
Date: Sat, 13 Apr 2019 11:03:16 -0700
From: "Ken Swaggart" <k.swaggart@???????.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] G5500 - replacement boom clamps?
Message-ID: <003c01d4f223$2b75e1f0$8261a5d0$@???????.???>
Content-Type: text/plain; charset="us-ascii"
Thanks for all the responses. Looking at the vendors, it seems my main
problem will be finding stainless saddle clamps. The U-bolt portion of the
assembly appears not too hard to find.
Ken, W7KKE
------------------------------
Message: 13
Date: Sat, 13 Apr 2019 18:29:57 +0000 (UTC)
From: "k6vug@?????????.???? <k6vug@?????????.???>
To: Roy Dean <royldean@?????.???>, W3AB/GEO <w3ab@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] G5500 - replacement boom clamps?
Message-ID: <1747005417.1487044.1555180197424@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I recently bought a few from Home Depot, they have various sizes in inches,
sorry didn;t come across any metric markings.
- Umesh, k6vug
On Saturday, April 13, 2019, 10:20:24 AM PDT, W3AB/GEO via AMSAT-BB
<amsat-bb@?????.???> wrote:
The U clamps are metric. That said one can probably find an approximate fit
at an industrial supply house like McMaster-Carr.
?___
Sent from my two way wrist watch
73 de W3AB/GEO?
On Apr 13, 2019, 09:36, at 09:36, Roy Dean via AMSAT-BB <amsat-bb@?????.???>
wrote:
>You could try searching for stainless steel exhaust clamps - as some of
>them are the same design.? Not sure if you'll be able to find the
>right
>diameter, though.
>
>--Roy
>K3RLD
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End of AMSAT-BB Digest, Vol 14, Issue 142
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