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M0RZF is working on an update to the G6ALU 20W for Softrocks with switchable LP.<BR>
Only a single stage with 2 RD16HFF1's. Not finished but some good info so far.<BR><A href="http://www.robbie.nildram.co.uk">http://www.robbie.nildram.co.uk</A><BR><BR>
Dick Faust K0IVB<BR>
<BR>> Date: Thu, 30 Oct 2008 13:05:09 -0500<BR>> From: KE9H@austin.rr.com<BR>> To: greg@bigredbee.com; hpsdr@lists.hpsdr.org<BR>> Subject: Re: [hpsdr] Penelope Mercury Ozy Atlas -- what else???<BR>> <BR>> ***** High Performance Software Defined Radio Discussion List *****<BR>> <BR>> Greg Clark wrote:<BR>> > <BR>> > What else do I need to make this whole setup work?<BR>> > <BR>> > 1) Do I need some sort of Transmit / Receive switch once I add Mercury?<BR>> You will need some kind of transmit-receive antenna switch, and some<BR>> filtering to stop images (mixing products or aliases) from the TV and FM<BR>> broadcast stations (Mercury and Penelope sampling frequency of 122.88 MHz )<BR>> from appearing in band. Read the ALEX (Alexiares) section in the Wiki.<BR>> > <BR>> > 2) Does Alex implement a Transmit / Receive Switch?<BR>> Yes. There is a 100 watt (peak) T-R switch in ALEX.<BR>> Read the ALEX (Alexiares) section in the Wiki.<BR>> <BR>> http://hpsdr.org/wiki/index.php?title=HPSDRwiki:Community_Portal<BR>> <BR>> > <BR>> > 3) What about an HF amplifier?<BR>> No current HPSDR offering, but lots of discussion.<BR>> <BR>> ALEX also includes a set of transmit low pass filters<BR>> for all HF bands and 6 meters, rated for up<BR>> to 100 watt peak, so it should simplify the HF amp<BR>> problem, when you do select one. The G6ALU 20 watt<BR>> amp is probably a good choice at that power level, but you<BR>> will likely have to bypass the first input stage.<BR>> <BR>> --- Graham / KE9H<BR>> <BR>> <BR>> _______________________________________________<BR>> HPSDR Discussion List<BR>> To post msg: hpsdr@hpsdr.org<BR>> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org<BR>> HPSDR web page: http://hpsdr.org<BR>> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/<BR><BR><br /><hr />Stay organized with simple drag and drop from Windows Live Hotmail. <a href='http://windowslive.com/Explore/hotmail?ocid=TXT_TAGLM_WL_hotmail_102008' target='_new'>Try it</a></body>
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