[Ground-station] Lime LMS8001a Companion Board

[Ron Economos]

Unfortunately, the use of U.FL connectors make this product absolutely 
useless (at least for me). At this point, I'm going to see if it blends.

Ron W6RZ


On 04/16/2018 06:43 PM, Michelle Thompson via Ground-Station wrote:
> Taking your results and the board to San Diego Microwave Group meeting 
> tonight.
>
> -Michelle W5NYV
>
> "Potestatem obscuri lateris nescis."
>
>
> On Mon, Apr 9, 2018 at 3:44 AM, Mike Seguin via Ground-Station 
> <ground-station at lists.openresearch.institute 
> <mailto:ground-station at lists.openresearch.institute>> wrote:
>
>     Correction to LO leakage on 5 GHz. -53 dBc but I measured -47 dBm
>     not -53 dBm.
>
>     Next tests are NF and play with the GPI for selecting different
>     LO's and channel configs.
>
>     I have a GPIO board for my Lime and it works and is supported in
>     LimeSDR#. Also, Simon (SDRConsole) has indicated he will support
>     GPIO as well.
>
>     Here's what LimeSDR# supports.
>     --------------------------------------------------------------
>     - J12 connector GPIO
>     --------------------------------------------------------------
>     - Outputs: 0-3 BPF (4 bits), 4-PTT (MOX)
>     - Inputs: 5-PTT microphone, 6-keyer DASH, 7-keyer DOT
>
>     LimeSDR# is based on PowerSDR and is at beta 0.5 now.
>
>     Mike
>
>
>     On 4/8/2018 6:54 PM, Mike Seguin via Ground-Station wrote:
>
>         Hi Ron,
>
>         Did some basic transmit tests today.
>
>         LMS8001a Companion Board
>         4/8/2018
>
>         10 GHz transmit section. CHA
>         IF set at 1.298 GHz max +9 dBm
>         LO set to 9.070
>
>         10.368 -7 dBm
>         LO @ -47 dBc (measured -54 dBm)
>
>         5 GHz transmit section. CHD
>         IF set at 1.350 GHz max +9 dBm
>         LO set to 4.5 GHz
>
>         5.850 +6 dBm
>         LO @ -53 dBc (measured -53 dBm)
>
>         === output in the 9-10 GHz range where the board is tuned ===
>         9.0 GHz +1 dBm
>         9.3 GHz -2 dBm
>         9.7 GHz -6 dBm
>         10 GHz -7 dBm
>
>         Board is set up for:
>         IF 1-3 GHz
>         Up/Dwn conversions 5-6 GHz & 9-10 GHz
>
>         Mike
>
>
>         On 4/8/2018 2:46 PM, Ron Economos via Ground-Station wrote:
>
>             I have one. I'll be doing some phase noise testing with
>             5.6 GHz down conversion soon.
>
>             Ron W6RZ
>
>             On 04/08/2018 03:57 AM, Mike Seguin via Ground-Station wrote:
>
>                 Anyone on the list working with the Lime LMS8001a
>                 Companion Board? Mine finally arrived and I'm starting
>                 to work with it. So far 10 GHz TX/RX is working
>                 (10.368 GHz). 10 MHz lock works well.
>
>                 Next is to try 5 GHz.
>
>                 At this point, no real measurements - just seeing
>                 signals going in/out and learning the setup.
>
>                 After initial sectional tests, I want to set it up as
>                 5 GHz TX and 10 GHz receive.
>
>
>
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>
>
>
>     -- 
>
>     73,
>     Mike, N1JEZ
>     "A closed mouth gathers no feet"
>

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