[Ground-station] Lime LMS8001a Companion Board

[Mike Seguin]

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"