[time-nuts] Re: Need power requirements for the Z3805A
Bob Camp
kb8tq at n1k.org
Fri Jan 19 01:01:23 UTC 2024
Hi
The original question from Corby was about max input current on the Z3805. 50W at 24V is pretty much right at 2A â¦. Is the real answer 1.83? Who knows ...
Bob
> On Jan 18, 2024, at 6:34â¯PM, Andrew Kalman via time-nuts <time-nuts at lists.febo.com> wrote:
>
> I was assuming Lon's question was re the *EXTERNAL *power supplies for
> Z3805As.
>
> I have four Z3805As, and they all take a 24VDC input via an XLR connector,
> which IIRC was a standard factory configuration.
>
> I use Meanwell GS60A24-P1J desktop power supplies
> <https://www.jameco.com/z/GS60A24-P1J-MEAN-WELL-60W-24V-2-5A-3-Wire-Table-Top-Power-Supply-with-2-1mm-Plug_1952214.html>,
> "50W max" (with the stock plug replaced with a female XLR connector, of
> course). They work great.
>
> --Andrew
>
> --------------------------------
> Andrew E. Kalman, Ph.D.
>
>
> On Thu, Jan 18, 2024 at 2:01â¯PM Bob Camp via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
>> Hi
>>
>> That last line is the gotcha. If 25W is the ânominalâ â¦. whatâs the max?
>> Is the 25W after the 10811 warms up? (I believe it is â¦.).
>>
>> Bob
>>
>>> On Jan 18, 2024, at 11:10â¯AM, DM via time-nuts <time-nuts at lists.febo.com>
>> wrote:
>>>
>>> Corby,
>>> You can find the complete user manual with a quick Google search.
>> Here's the power requirements from the manual:
>>> Power Requirements
>>> DC Power:
>>> +27 Vdc nominal (19 Vdc ± 0.5 Vdc to 30 Vdc ± 0.5 Vdc operating range).
>> Greater than 23 Vdc ± 0.5 Vdc starting.
>>> -54 Vdc nominal (-60 Vdc ± 0.5 Vdc to -37 Vdc ± 0.5 Vdc operating
>> range). Less than -46 Vdc ± 0.5 Vdc starting.
>>> Input Power: < 25 Watts (nominal)
>>>
>>> Cheers,
>>> DaveM
>>>
>>>
>>> ----- Original Message -----
>>> From: "Time-Nuts" <time-nuts at lists.febo.com>
>>> To: "Time-Nuts" <time-nuts at lists.febo.com>
>>> Cc: cdelect at juno.com
>>> Sent: Wednesday, January 17, 2024 10:05:48 PM
>>> Subject: [time-nuts] Need power requirements for the Z3805A
>>>
>>> Hi, Anyone know what the power requirements (DC current) for the 48V and
>> 24V nominal HP Z3805A GPS receivers are. Cheers,
>>> Corby
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