X-treme eSSB Audio FORUM

Hi All
Just wonted to know if anyone has used a Flex1500 SDR radio with there audio gear and what did they think, I'm thinking of getting one but wondered if anyone had an info regarding the SDR radio's?

Rob

So has anyone tried using any SDR radio with this kind of Audio gear and if they have what do you think and was it easy setting everything up? whats the filtering like to TX & RX???

Rob

Howdy Rob,
Unfortunately , We have not had one of the Flex SDR here in the Labs to evaluate, so information is very limited on a first hand basis.

Anyone else play with the Flex 1500 and Hi-Fi Audio?

Thanks for the reply I've seen that someone was trying a Flex 5000 but I've not seen any reply regarding the TX-RX bandwidth so will have to keep looking and listening on HF to see if anyone comes up with some information.

Rob

Hi There,

I have wkd with one station who use Flex 5000A, station from Indonesia, YB0BAW..the audio record have at my blog..Can listen from there..

Thanks & 73,

ody

Hi Ody
thanks for the heads-up I've just checked out your Blog and thanks for the info I'll keep an eye out for him on the cluster and see if I can get a chat or even just listen to his audio and see what it sounds like from my end.

Rob

If memory serves me right, The SDR 1500 does not have the tx bandwidth that the SDR 5000 has. I believe it will only go out to 3.0kc. Something you may want to check into.

Thanks for the reply, I got in touch with the Flex tech guys and they e-mailed me back with this answer which might help others if they are thinking of getting a SDR Radio.



The differences in max TX bandwidth of the radios are as follows.

Flex 1500 - 3650 hz per sideband or 7300 hz DSB or AM
Flex 3000 - 4600 hz per sideband or 9200 hz DSB or AM
Flex 5000 - 9999 hz per sideband or 19998 hz DSB or AM

All these are fully adjustable one hz at a time from 0 to full bandwidth.

All the radios are fully adjustable on receive, 0 to 20 khz wide, 10 khz per sideband..


Rob

although this is a older post thanks for the info,but what about the hokey pokey 11 meter mod who does the software for that anyone know thatthanks jon..go wide or go hide....

M0AOV wrote:Thanks for the reply, I got in touch with the Flex tech guys and they e-mailed me back with this answer which might help others if they are thinking of getting a SDR Radio.



The differences in max TX bandwidth of the radios are as follows.

Flex 1500 - 3650 hz per sideband or 7300 hz DSB or AM
Flex 3000 - 4600 hz per sideband or 9200 hz DSB or AM
Flex 5000 - 9999 hz per sideband or 19998 hz DSB or AM

All these are fully adjustable one hz at a time from 0 to full bandwidth.

All the radios are fully adjustable on receive, 0 to 20 khz wide, 10 khz per sideband..


Rob

Read this at http://www.flex-radio.com/Products.aspx ... faq#q1-f3k

FLEX-3000 Questions

Q1: How is the FLEX-3000 different from the FLEX-5000 transceivers?
A: There are several differences. First is the size of the unit. The FLEX-3000 is a compact software defined radio capable of being easily placed in a laptop computer bag for portable operation. Second is receiver performance. Although the FLEX-3000 out performs all other transceivers in its price class and its capabilities are on par with the FLEX-5000, its overall receiver performance is slightly below that of the FLEX-5000 but greater than the SDR-1000. The third difference is due to its small form factor; it does not have the wide variety and I/O flexibility that is found on the FLEX-5000. The last three points of differentiation are the FLEX-3000 is not a full duplex software defined radio, the maximum transmit bandwidth is 3650 Hz (SSB) and the maximum sampling rate of the high performance A/D and D/A converters is 96 KHz.
AM and DSB is another story

I've run a Flex SDR-1000 w/just a condenser mic and preamp.

SSB width is 9999 hz and astounding audio both on receive and transmit.

A real voodoo radio if ther ever was one.

Skullman has heard it and talked to me; he can verify.

Hi everybody.
The newer KE9NS PowerSDR can achieve 10khz in TX with Flex 1500 and 3000.
A friend of mine, have a FLEX1500 with external QRO PA, and have AWESOME audio. 70hz to 6250hz. And can achieve 10000hz.

73 my friends...

PY2ECM(ex-PU2THW). Eric.

PU2THW wrote:Hi everybody.
The newer KE9NS PowerSDR can achieve 10khz in TX with Flex 1500 and 3000.
A friend of mine, have a FLEX1500 with external QRO PA, and have AWESOME audio. 70hz to 6250hz. And can achieve 10000hz.

73 my friends...

PY2ECM(ex-PU2THW). Eric.

Just a little more info, you do need to run windows 7 or newer to be able to use the newest versions of KE9NS Powersdr software and if you have a DJCONTROL MPE LE or one of the other versions there are loads of updates on his Powersdr.

I'm now using a Flex 3000 and it's a very good radio for ESSB audio.

73's

There is a reason why Flex SDR's are popular. They yield very good eSSB results, but of course in the proper hands. The SDR-1000 can still sound leaps better than the 1500/3000/5000. I've heard more of Flex's 6k series, but most of the ops I've listened to just widen their TX bandwidth to 9kHz and don't bother with tweaking. Granted, I'm limited to receiving 6kHz on both Kenwoods and 20kHz with SDR Play and these guys sound terrible. Again, in the proper hands Flex SDR can be a powerful vehicle for eSSB.