[Flexradio] carrier on ssb

2009-01-06 Thread Christos Nikolaou
Hi, Just wanted to point out that the LO leakage has been handled from Tasa YU1LM a few years back succesfully in his designs. Specifically in his Avala-01 - http://yu1lm.qrpradio.com/AVALA-01%20AND%20ADTRX2-YU1LM.pdf you can suppress that 'carrier' by adjusting the bias voltages on I and Q of

Re: [Flexradio] carrier on ssb

2009-01-06 Thread Lux, James P
On 1/6/09 4:38 AM, Christos Nikolaou sv1...@gmail.com wrote: Hi, Just wanted to point out that the LO leakage has been handled from Tasa YU1LM a few years back succesfully in his designs. Specifically in his Avala-01 - http://yu1lm.qrpradio.com/AVALA-01%20AND%20ADTRX2-YU1LM.pdf you can

Re: [Flexradio] carrier on ssb

2009-01-04 Thread Christos
It is not actually a carrier but LO leakage from the commutator ic FST3253 and there is no adjustment you can make to null it on this implementation. I use sdr1k with the 100w PA and I have measured this leakage to be -20dbm @ 160m (70db below 100w)and 0dbm @ 10 m (50 db below 100w but only 30

Re: [Flexradio] carrier on ssb

2009-01-04 Thread Lux, James P
On 1/3/09 12:33 AM, Christos sv1...@otenet.gr wrote: It is not actually a carrier but LO leakage from the commutator ic FST3253 and there is no adjustment you can make to null it on this implementation. I use sdr1k with the 100w PA and I have measured this leakage to be -20dbm @ 160m (70db

Re: [Flexradio] carrier on ssb

2009-01-04 Thread Terry Fox
-Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz]on Behalf Of Christos Sent: Saturday, January 03, 2009 3:33 AM To: FlexRadio biz Subject: Re: [Flexradio] carrier on ssb It is not actually a carrier but LO leakage from

Re: [Flexradio] carrier on ssb

2009-01-03 Thread Gerald Youngblood
-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of l...@bellsouth.net Sent: Thursday, January 01, 2009 6:56 PM To: FlexRadio@flex-radio.biz Subject: [Flexradio] carrier on ssb hi .i am having a problem with my flex 1000 i have a carrier on ssb and i get reports it has a carrier

Re: [Flexradio] carrier on ssb

2009-01-02 Thread Dave Kiefer
I've had that problem twice in the 1000 and it was due to a blown modulator chip. But you should contact Flex Radio direct and let them sort it out. Dave - N4DWK l...@bellsouth.net wrote: hi .i am having a problem with my flex 1000 i have a carrier on ssb and i get reports it has a carrier on

Re: [Flexradio] carrier on ssb

2009-01-02 Thread Hulen Smith
speaking my first words. I hope this isn't the issue with the model 1500 coming out this spring. Regards Hulen K5HCS - Original Message - From: l...@bellsouth.net To: FlexRadio@flex-radio.biz Sent: Thursday, January 01, 2009 6:55 PM Subject: [Flexradio] carrier on ssb hi .i am having

[Flexradio] carrier on ssb

2009-01-01 Thread loaf
hi .i am having a problem with my flex 1000 i have a carrier on ssb and i get reports it has a carrier on the usb when it is running lsb. i also have a carrier when the radio is in the mox setting.can any help me? ___ FlexRadio Systems Mailing List