Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-17 Thread Eric Wachsmann
; 'ROger Rehr'; 'Dale Boresz' Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] XVRX Input Port on Flex-5000 At 02:01 PM 10/16/2007, Eric Wachsmann wrote: Note that the XVTR inputs go through the same RX filters as the other antenna inputs on the FLEX-5000. Ah.. it wasn't clear from

[Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread Roger Rehr
Hi, All, I discovered a 'feature' of using the XVRX port that I at first thought was a software-signal-routing 'bug', which it is not. My station is VHF and up only, and is very heavily digitalized/computerized, with multiple concurrent pathways for RF and audio being used, all in the name of

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread Dale Boresz
Hello Roger, I have only a single Elecraft XV144 xvtr here, but I don't see any of the noise that you're seeing on the XVTX/COM or the XVRX ports. However, I do notice that the noise floor is about 7dB higher with a dummy load connected to either of these ports, as compared to the RX1 or the

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread Jim Lux
At 08:50 AM 10/16/2007, Roger Rehr wrote: Hi, All, I discovered a 'feature' of using the XVRX port that I at first thought was a software-signal-routing 'bug', which it is not. snip The difference between the results with XVRX and the other two input ports is in the bandpass filter on the RX1-IN

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread ROger Rehr
HI, Dale, Thanks for the note! Answers below: Have you tried connecting a 50 Ohm terminated BNC plug directly to the XVTX/COM and XVRX ports so that you don't have a piece of coax acting as a possible antenna? Do you still see the noise? Is it real noise, or are they spurs (does toggling

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread Eric Wachsmann
To: Dale Boresz Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] XVRX Input Port on Flex-5000 HI, Dale, Thanks for the note! Answers below: Have you tried connecting a 50 Ohm terminated BNC plug directly to the XVTX/COM and XVRX ports so that you don't have a piece of coax

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread ROger Rehr
Hi Eric, QSL. Sorry for spreading my wrong [read stupid] guess on 'filtering' on the list ;( I installed the new firmware that you sent me, that turned on the preamp for the transverter modes. Running 1.10.3 with that firmware removes the noise! Great call on your part!! I do not

Re: [Flexradio] XVRX Input Port on Flex-5000

2007-10-16 Thread Jim Lux
At 02:01 PM 10/16/2007, Eric Wachsmann wrote: Note that the XVTR inputs go through the same RX filters as the other antenna inputs on the FLEX-5000. Ah.. it wasn't clear from the block diagram. http://kb.flex-radio.com/article.aspx?id=10380cNode=4A1H8A It shows the Tx coming right out of the