Re: [Flexradio] Why FlexRadio SDR?
6 month user here, this radio is unegualed for weak signal, in my opinion. All my friends are amazed by the transmit quality and ask for bandwidth checks as well. Digging out a weak signal is why I bought the 5000. I played with the field day audio file and the demo program quite a while before making my decision. I'm not looking back. All the rest of my radio's except one backup unit are for sale. Good work Flex!!! de vic k4xtt. On 8/29/2010 11:05 PM, Mark Lunday wrote: I have seen some negative press lately. Everyone is entitled to opinion and the right to voice it: CW keyer issues, SDR 2.0 performance, etc. I am not looking to discount these comments at all. What I WILL comment on is the signal processing of the system. The superb performance. I was in the shack tonight, reading some email and BB posts, when I heard a very weak CQ on CW. Something like 339 RST. I was on the hex antenna pointed north (fixed direction), so I switched to the dipole facing E/W at 64 feet, no improvement. Went to the inverted L, no improvement. Went to the multi-band vertical, just a tad better. Narrowed down the bandwidth of the CW filter, turned on noise reduction, and copied YJ0VK. He was calling CQ, nobody answering him. So I put my 100 watts to work. After 3 min, he finally copied my call. In the log! Vanuatu. But the thing is, I was able to HEAR HIM. If not for the Flex SDR system, I would never have heard him on my traditional rigs. Yes, I used the CWX keyboard like I always do for CW. It's a small tradeoff to make in exchange for the amazing receive capabilities of this system. Thanks, Flex! 15 month owner here, and thrilled with the product for what I use it for.weak-signal HF/VHF CW DX. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.com http://wd4elg.net ___ 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://kc.flexradio.com/ Homepage: http://www.flexradio.com/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3101 - Release Date: 08/29/10 14:34:00 ___ 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://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Why FlexRadio SDR?
Hi Mark. I discovered all my concerns about CW latency was not necessary. I use a sonet allegro FW pci-express card. i don't notice any keying latency issues with my 3000. I am still using version 1 software. I get a little rfi interference to keying on 10m band but i can get that easily sorted. Dave -original message- Subject: [Flexradio] Why FlexRadio SDR? From: "Mark Lunday" Date: 30/08/2010 1:06 pm I have seen some negative press lately. Everyone is entitled to opinion and the right to voice it: CW keyer issues, SDR 2.0 performance, etc. I am not looking to discount these comments at all. What I WILL comment on is the signal processing of the system. The superb performance. I was in the shack tonight, reading some email and BB posts, when I heard a very weak CQ on CW. Something like 339 RST. I was on the hex antenna pointed north (fixed direction), so I switched to the dipole facing E/W at 64 feet, no improvement. Went to the inverted L, no improvement. Went to the multi-band vertical, just a tad better. Narrowed down the bandwidth of the CW filter, turned on noise reduction, and copied YJ0VK. He was calling CQ, nobody answering him. So I put my 100 watts to work. After 3 min, he finally copied my call. In the log! Vanuatu. But the thing is, I was able to HEAR HIM. If not for the Flex SDR system, I would never have heard him on my traditional rigs. Yes, I used the CWX keyboard like I always do for CW. It's a small tradeoff to make in exchange for the amazing receive capabilities of this system. Thanks, Flex! 15 month owner here, and thrilled with the product for what I use it for.weak-signal HF/VHF CW DX. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.com http://wd4elg.net ___ 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://kc.flexradio.com/ Homepage: http://www.flexradio.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://kc.flexradio.com/ Homepage: http://www.flexradio.com/
[Flexradio] Why FlexRadio SDR?
I have seen some negative press lately. Everyone is entitled to opinion and the right to voice it: CW keyer issues, SDR 2.0 performance, etc. I am not looking to discount these comments at all. What I WILL comment on is the signal processing of the system. The superb performance. I was in the shack tonight, reading some email and BB posts, when I heard a very weak CQ on CW. Something like 339 RST. I was on the hex antenna pointed north (fixed direction), so I switched to the dipole facing E/W at 64 feet, no improvement. Went to the inverted L, no improvement. Went to the multi-band vertical, just a tad better. Narrowed down the bandwidth of the CW filter, turned on noise reduction, and copied YJ0VK. He was calling CQ, nobody answering him. So I put my 100 watts to work. After 3 min, he finally copied my call. In the log! Vanuatu. But the thing is, I was able to HEAR HIM. If not for the Flex SDR system, I would never have heard him on my traditional rigs. Yes, I used the CWX keyboard like I always do for CW. It's a small tradeoff to make in exchange for the amazing receive capabilities of this system. Thanks, Flex! 15 month owner here, and thrilled with the product for what I use it for.weak-signal HF/VHF CW DX. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.com http://wd4elg.net ___ 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://kc.flexradio.com/ Homepage: http://www.flexradio.com/
