From: <shoriuchi_at_email.protected>
Date: Thu, 22 Nov 2012 08:36:38 +1100

Hi all,

It appears Tid 70m S-band HEMT frequency coverage is in fact slightly
wider than advertised, 2165-2335 MHz (it's been advertised as 2200-2300
MHz). We have a spare HEMT that performs as the nominal coverage of
2200-2300 MHz and Kevin Knights here is about to propose JPL to replace
the working LNA with the spare for space craft tracking to exclude any
RFIs in the unexpected extra bands of 2165-2200 and 2300-2335 MHz. Can
anyone give me quick feedback regarding possible benefit on future
S-band LBA experiments by keeping these extra bands?

I understand all Tid S-band VLBI have been done within the 2200-2300 MHz
band but in case we can expect future demand for these extended bands I
should let Kevin know now. However it may also be true for S-band LBA
too that cutting these parts is beneficial to exclude RFIs.

Cheers,

Shinji.

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Received on 2012-11-22 08:37:40