[Flexradio] 160 preamp
Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Hello Trevor, The internal preamp in the FLEX-5000 begins to roll off below 3.5 MHz, so it doesn't have much gain at 160 meters. I've been experimenting with small receiving loops on 80m and 40m and of course the preamp works fine in both instances, but I also plan to build a loop for 160m, and will build an external stand-alone preamp which will be placed into the RX1- In/Out loop along with the loop itself. The RX loop is very convenient since the T/R switching is handled for you, and you won't have to be concerned about further protecting an external preamp. 73, Dale WA8SRA Trevor Smithers wrote: Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Hi Dale, Totally agree about using separate rx antennas on the low bands - I've been using Wellbrook loops for a number of years and find them extremely effective. However my point about the preamp is that as soon as I switch to 160 the button is greyed out and only becomes available again if I tune above 2 MHz and according to the release notes this behaviour has been fixed in the latest release. So I'm wondering if its just me or is everyone else seeing the same thing 73 Trevor G0KTN Original Message dated Tuesday 9 September 2008 Hello Trevor, The internal preamp in the FLEX-5000 begins to roll off below 3.5 MHz, so it doesn't have much gain at 160 meters. I've been experimenting with small receiving loops on 80m and 40m and of course the preamp works fine in both instances, but I also plan to build a loop for 160m, and will build an external stand-alone preamp which will be placed into the RX1- In/Out loop along with the loop itself. The RX loop is very convenient since the T/R switching is handled for you, and you won't have to be concerned about further protecting an external preamp. 73, Dale WA8SRA Trevor Smithers wrote: Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Trevor, that is and has always been the intended behavior to turn off the preamp below 2 MHz and not make it available (grayed out). There was a bug that allowed you to turn the preamp on below 2 MHz and that is the bug that was fixed. -Tim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Trevor Smithers Sent: Tuesday, September 09, 2008 9:05 AM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] 160 preamp Hi Dale, Totally agree about using separate rx antennas on the low bands - I've been using Wellbrook loops for a number of years and find them extremely effective. However my point about the preamp is that as soon as I switch to 160 the button is greyed out and only becomes available again if I tune above 2 MHz and according to the release notes this behaviour has been fixed in the latest release. So I'm wondering if its just me or is everyone else seeing the same thing 73 Trevor G0KTN Original Message dated Tuesday 9 September 2008 Hello Trevor, The internal preamp in the FLEX-5000 begins to roll off below 3.5 MHz, so it doesn't have much gain at 160 meters. I've been experimenting with small receiving loops on 80m and 40m and of course the preamp works fine in both instances, but I also plan to build a loop for 160m, and will build an external stand-alone preamp which will be placed into the RX1- In/Out loop along with the loop itself. The RX loop is very convenient since the T/R switching is handled for you, and you won't have to be concerned about further protecting an external preamp. 73, Dale WA8SRA Trevor Smithers wrote: Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
I like Dale's idea of a separate preamp in the Rx1 in/out line but I already have the much needed 6M preamp in that line. Regards Al W5LUA --- On Tue, 9/9/08, Tim Ellison [EMAIL PROTECTED] wrote: From: Tim Ellison [EMAIL PROTECTED] Subject: Re: [Flexradio] 160 preamp To: [EMAIL PROTECTED] [EMAIL PROTECTED], flexradio@flex-radio.biz flexradio@flex-radio.biz Date: Tuesday, September 9, 2008, 8:17 AM Trevor, that is and has always been the intended behavior to turn off the preamp below 2 MHz and not make it available (grayed out). There was a bug that allowed you to turn the preamp on below 2 MHz and that is the bug that was fixed. -Tim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Trevor Smithers Sent: Tuesday, September 09, 2008 9:05 AM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] 160 preamp Hi Dale, Totally agree about using separate rx antennas on the low bands - I've been using Wellbrook loops for a number of years and find them extremely effective. However my point about the preamp is that as soon as I switch to 160 the button is greyed out and only becomes available again if I tune above 2 MHz and according to the release notes this behaviour has been fixed in the latest release. So I'm wondering if its just me or is everyone else seeing the same thing 73 Trevor G0KTN Original Message dated Tuesday 9 September 2008 Hello Trevor, The internal preamp in the FLEX-5000 begins to roll off below 3.5 MHz, so it doesn't have much gain at 160 meters. I've been experimenting with small receiving loops on 80m and 40m and of course the preamp works fine in both instances, but I also plan to build a loop for 160m, and will build an external stand-alone preamp which will be placed into the RX1- In/Out loop along with the loop itself. The RX loop is very convenient since the T/R switching is handled for you, and you won't have to be concerned about further protecting an external preamp. 73, Dale WA8SRA Trevor Smithers wrote: Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Tim, always been the intended behavior to turn off the preamp below 2 MHz Thanks for the clarification, much appreciated. 73 Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
David, The preamp has a fairly steep roll off before the 160 meter band. During beta testing, we found using the preamp on 160 actually made reception worse. This is why you can not select the preamp for 160 meters. Gerald can give you a better technical answer than I on exactly what the characteristics of the preamp are. -Tim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Cole Sent: Saturday, November 03, 2007 4:59 PM To: flexradio@flex-radio.biz Subject: [Flexradio] 160 preamp 160 Receive Pre-amp - I wish to have the option to switch the receive pre-amp on on 160 at the moment this is grayed out. There is a big difference in receiving low signals if the pre-amp is enabled. The noise floor using 250mtr beverages is -100dbm 2.001khz without the pre-amp. With the pre-amp enabled this drops to -112dbm. Very low signals which are totaly unreadable become Q5 and workable - I have made the same tests on 80m and the results are the same. Has anyone else experienced this situation? if so is there a fix? how easy is it to change the software? - Dudley I have also emailed you directly on this ongoing problem. G3RCQ -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071103/319589ec/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] 160 preamp
160 Receive Pre-amp - I wish to have the option to switch the receive pre-amp on on 160 at the moment this is grayed out. There is a big difference in receiving low signals if the pre-amp is enabled. The noise floor using 250mtr beverages is -100dbm 2.001khz without the pre-amp. With the pre-amp enabled this drops to -112dbm. Very low signals which are totaly unreadable become Q5 and workable - I have made the same tests on 80m and the results are the same. Has anyone else experienced this situation? if so is there a fix? how easy is it to change the software? - Dudley I have also emailed you directly on this ongoing problem. G3RCQ -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071103/319589ec/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
David, What transceiver are you using? -Tim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Cole Sent: Saturday, November 03, 2007 4:59 PM To: flexradio@flex-radio.biz Subject: [Flexradio] 160 preamp 160 Receive Pre-amp - I wish to have the option to switch the receive pre-amp on on 160 at the moment this is grayed out. There is a big difference in receiving low signals if the pre-amp is enabled. The noise floor using 250mtr beverages is -100dbm 2.001khz without the pre-amp. With the pre-amp enabled this drops to -112dbm. Very low signals which are totaly unreadable become Q5 and workable - I have made the same tests on 80m and the results are the same. Has anyone else experienced this situation? if so is there a fix? how easy is it to change the software? - Dudley I have also emailed you directly on this ongoing problem. G3RCQ -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071103/319589ec/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
