I've run my rotor system from an inverter (it was a 1kw model, so not super small), and from its perspective all was fine.  But if your inverter is one of the "modified" sine wave models it (the inverter) will pretty much wipe out the entire HF spectrum with local noise.  Even some pure sine wave models can be a bit noisy.  I'm currently running much of the Shack's 120v equipment (the PC monitors and Internet, mostly) from a 500VA Victron pure sine wave inverter, and it's pretty quiet on RF.

Greg  KO6TH


jim via AMSAT-BB wrote:
Can you run an AC rotor on an small inverter?  Maybe a true sine inverter. 
Or would the inverter be too electrically noisy?
I also wonder if a brushed DC motor would be noisy too. Right up there with the antennas.
Maybe they use a brushless or stepper motor. ???

Jim, wa9tgo

On Saturday, August 5, 2023 at 05:10:25 PM EDT, Peter Goodhall via AMSAT-BB <amsat-bb@amsat.org> wrote:


Would explain why the product photo looked exactly the same

Peter.

On Sat, 5 Aug 2023 at 20:43, Paul Stoetzer via AMSAT-BB
<amsat-bb@amsat.org> wrote:
>
> It’s the same product with the addition of Bluetooth. RFinder bought the design from Portable Rotation, which had discontinued it. The price for the basic system prior to its discontinuation was $799, although I don’t know an apples to apples comparison based on what is included with this package.
>
> 73,
>
> Paul, N8HM
>
> On Sat, Aug 5, 2023 at 14:34 Don KB2YSI via AMSAT-BB <amsat-bb@amsat.org> wrote:
>>
>> That is interesting. How does the cost compare to that other company who used to sell portable 12v rotor? I have no idea if they would be directly comparable on features.
>>
>> --... ...--
>> Don KB2YSI
>>
>> On Sat, Aug 5, 2023, 14:16 Tom Schuessler via AMSAT-BB <amsat-bb@amsat.org> wrote:
>>>
>>> Yes they are pretty proud of all their products and show it by the price tag, but the RFinder folks have been announcing their portable AZ-EL rotator system.  I expect that some of you folks who have a few more available bucks than I will want to jump on this.  They still show it a s Pre-order though.  They also seem to indicate that one of their radios will also do satellite, with polar plots and I suspect frequency adjustment capabilities.
>>>
>>>
>>>
>>> https://androiddmr.com/products/rfinder-portazel-portable-12v-bluetooth-az-el-rotator
>>>
>>>
>>>
>>> Be interesting to see what the AMSAT community says about these products.
>>>
>>>
>>>
>>> Tom, N5HYP
>>>
>>>
>>>
>>>
>>>
>>>
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