From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 5EB3E3B2A4 for ; Thu, 16 Feb 2023 20:24:39 -0500 (EST) Received: by mail-ed1-x52f.google.com with SMTP id dn12so6375107edb.5 for ; Thu, 16 Feb 2023 17:24:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=perens.com; s=google; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=mG1CogeqESNuJqStVkFWsNzXymgFNqoDb4gbMN2sV1c=; b=jH7ZT4mWTzhmHrL9Ghx7IzoMlhdTUnELLGghi0l0v3G510XBx3TK4qM5a94nYXLhq6 my9eAprjIbVEWc1Wr2KGMlgn1C9ZJdmu8J/QlrMoAAQzjWJkylzCvIyuFLwI9wmKCVUK 3WSgXcaJI6SSCwonI7bXhAsaRVVOiHvQ6kB5k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=mG1CogeqESNuJqStVkFWsNzXymgFNqoDb4gbMN2sV1c=; b=ZlNX3ZdgKFYLd18V34845VDZFq6dmBfJJmPZ7F2sD/otKrPLFIqFs7LEIAT1Ihgwqc 9pXdfroGZaQqo46FDMtnWvJGR9dT+Az+heh4ufBF+tKwDqiPqa+hlhD6AZqcJbzt9ouQ A+ptFBXlUYmHqOf3343+CtP8+x3aViTUfK3Jf5K3+G4PC6Ia/hDvHtv57zv7+66ojxf8 pds+q6D5clx4LJvzAI2FwEQn9neLVj4rtC/zlImkMegulDxWOsIMpqirRdgVChyhXyUo SuRNaIUAH4B+6rT9AhO0CTUDvwoFb9MHsfwRKGW+XS1zSm9zf6jNLl4PAm75kpiIBbRF 4sSQ== X-Gm-Message-State: AO0yUKXTi9x5IkI5eQA9GFyqp3b//YBXyacOM1sj4kp42tGauUgqn6RW w4moGOX3or/mkXkANskLFYyk9B8o6j09JLBqAmwmiVAD9KbRCQ== X-Google-Smtp-Source: AK7set8IlyFleZJbnAeuBSpKRlB0OHy1uYS+DLRfdLmrjA1vz2XnPsq3TKhkjH5v5Zlcf7YICquZ10OVM0fctjVrf8s= X-Received: by 2002:a50:bb67:0:b0:4ad:6113:568e with SMTP id y94-20020a50bb67000000b004ad6113568emr1482159ede.4.1676597078029; Thu, 16 Feb 2023 17:24:38 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Bruce Perens Date: Thu, 16 Feb 2023 17:24:25 -0800 Message-ID: To: Ulrich Speidel Cc: "starlink@lists.bufferbloat.net" Content-Type: multipart/alternative; boundary="00000000000044959205f4db2db2" Subject: Re: [Starlink] Starlink power use & satellite tracking X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Feb 2023 01:24:39 -0000 --00000000000044959205f4db2db2 Content-Type: text/plain; charset="UTF-8" On Thu, Feb 16, 2023 at 3:08 PM Ulrich Speidel via Starlink < starlink@lists.bufferbloat.net> wrote: > > - Small inverters usually come with cigarette lighter cables, and > cigarette lighter sockets are typically fused with 8 or 10 A fuses. That > puts maximum safe power outputs in the 96W to 130-something W range > depending on battery voltage. > > When a larger inverter failed upon installation, I ran Starlink with the router and rectangular dish for about 2 months, unattended, on a Harbor Freight 250W inverter and 8 GC2 batteries. Unfortunately this sort of crashed and burned after the first snow. The battery bank was 8 GC2 in series, and there was a 48V-12V converter before the Harbor Freight inverter. I had 4 solar panels flat on top of a freight container, simply so that they would not be visiblle and the site would be low profile. These got covered by snow, and I will tilt them up before the next snow season. The batteries then got to a low voltage, and the lovely Victron battery protector failed because I wired it backwards. Then I had a heart attack and could not visit the site for 3 months. The battery bank discharged entirely. I finally arrived to find ice at the top of 4 cells in the battery bank. Fortunately it was only at the top, and I was able to recover all of the batteries, rewire the protector, and put the site back on the air. At that point, I switched to DishyPowa, connected via a hacked Starlink Ethernet Adapter. This allows you to delete the inverter and the Starlink router, and run the dish directly off of 48-52V DC. You still need a router, because Starliink only provides one IPV4 DHCP address to the Dishy, and you need to do the usual NAT thing on your local net. But routers that run on 12V directly are easy to find. Thanks Bruce --00000000000044959205f4db2db2 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Thu, Feb 16, 2023 at 3:08 PM Ulric= h Speidel via Starlink <starlink@lists.bufferbloat.net> wrote:
  • Small inverters usually come with cigarette lighter cables, and cigarette lighter sockets are typically fused with 8 or 10 A fuses. That puts maximum safe power outputs in the 96W to 130-something W range depending on battery voltage.
When a larger inverter failed upon installation, I ra= n Starlink with the router and rectangular dish for about 2 months, unatten= ded, on a Harbor Freight 250W inverter and 8 GC2 batteries.

<= /div>
Unfortunately this sort of crashed and burned after the first sno= w. The battery bank was 8 GC2 in series, and there was a 48V-12V converter = before the Harbor Freight inverter. I had 4 solar panels flat on top of a f= reight container, simply so that they would not be visiblle and the site wo= uld be low profile. These got covered by snow, and I will tilt them up befo= re the next snow season. The batteries then got to a low voltage, and the l= ovely Victron battery protector failed because I wired it backwards. Then I= had a heart attack and could not visit the site for 3 months. The=C2=A0bat= tery bank discharged entirely. I finally arrived to find ice at the top of = 4 cells in the battery bank. Fortunately it was only at the top, and I was = able to recover all of the batteries, rewire the protector, and put the sit= e back on the air.

At that point, I switched to Di= shyPowa, connected via a hacked Starlink Ethernet Adapter. This allows you = to delete the inverter and the Starlink router, and run the dish directly o= ff of 48-52V DC. You still need a router, because Starliink only provides o= ne IPV4 DHCP address to the Dishy, and you need to do the usual NAT thing o= n your local net. But routers that run on 12V directly are easy to find.

=C2=A0 =C2=A0 Thanks

=C2=A0= =C2=A0 Bruce
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