Yep, me too. I could use a pre-amp for my 6m machine. But with the GLB box spec'ed for 600kHz offset, it could be an issue for me. My split is 5ookHz. Response plots would be nice.. 73 Mike Perryman www.k5jmp.us
-----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of Bob Dengler Sent: Wednesday, April 05, 2006 2:15 PM To: [email protected] Subject: Re: [Repeater-Builder] Aria-GLB preselector preamps. At 4/5/2006 09:22 AM, you wrote: >Anybody familiar with this? I remember the old GLB units from waay >back, and did not realize they were still/now available. I just >requested pricing for a 220 unit. They spec it at 8db of gain, and 44 >db of rejection at the transmit frequency . Pretty darn good! >http://www.aria-glb.com/products/reset_frames.htm?/products/preselector.htm I'd sure like to know what the noise figure is - only gain & selectivity specs are given, no NF. If it's the same as <http://www.simrex.com/site/products/preselector/Preselector1.pdf>, I'd expect it to have a high NF. Since this thing would typically be ahead of any other preamps (if any), it would effectively set the NF of the RX system. A GaAsFET preamp is used, but if it's preceded by a filter with 8 dB of loss, the NF will be ~8.5 dB. Bob NO6B Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
