[amsat-bb] Hughes PES

Howie HowieD231 at hotmail.com
Thu May 28 12:36:38 PDT 2009

Hi Luc,

The PES hasn't been around for a long time, almost 20 years. I don't have
manuals for this anymore and memory fades but the recive range is probably
11.7 to 12.2 Ghz and the transmit range is probably 14.0 to 14.5 Mhz. I
think the receive IF range is the standard 950-1450 Mhz range but Hughes
used a proprietory transmit IF. Voltage was supplied on the IFL cable using
bias T's internal to the "InDoorUnit". It was also customary to inject the
10 MHz PLL reference on the TX and sometimes RX IFL cable(s). The unit on
eBay is the second generation "OutDoorUnit" manufactured by NEC of Japan for
Hughes. The pointing output supplied a DC voltage proportional to signal
strength. This unit will require allot of surgery to be useful 10 Ghz.
...de Howie AB2S

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