You need a BCB filter, like the ICE 402 (http://www.iceradioproducts.com/filtersrf.html) installed in the RX loop. http://kc.flex-radio.com/KnowledgebaseArticle50385.aspx
-Tim -----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Paul Mullins Sent: Tuesday, January 19, 2010 8:21 PM To: FlexRadio@flex-radio.biz Subject: [Flexradio] external switching on flex 5000a question Hi all, I have been enjoying my new amateur radio, best tool I have ever bought, thats right its a tool for me I use the build in features for testing items that others in the local area can not test very easily. My question is given that the flex is so flex-able, how would I make it switch ( relay styles outputs) on and off in a as per band situation. What I have to do, and I do not like doing it but have to, is use a set of filters that need to be switched on or off per band, to remove the air born rubbish from a near by AM broadcast transmitter. I love the flex and many of my fellow ham operators that have seen it love it and would take it from my hands in an instant. I feel that in my operating position the flex could use a little help on the front end filtering, maybe a simple set of external filters on the rx taps. Just to let you know how close this problem is with out an antenna the received signal is 1.395 NO antenna ie receiver set to N/C pilot tone is -62 dBm or 10 + Long wire running 90 degrees to transmitter P/T is -5dBm Vert antenna base is 10 meters fro ground P/T is +2-5 dBm and the transmitter has two transmissions this one is the lower power one the other 1.539 is stronger again basically add 2-5 dBm more, and the poor front end over loads, Is there a way of front end attenuation. Surprising as it is I do not feel like packing up camp and moving, maybe I should just wait out and pray that all broadcast transmissions of digital, and well away from used ham bands in Australia. Currently ACMA (same as FCC) are pushing people to DAB+ on 205 mHz. Any ideas, I have though of pull supply fuses (lol). cheers all Paul -- Me, Myself and I accepts no liability for the content of this E-Mail, or for the consequences of any actions taken on the basis of the information provided, unless that information is subsequently confirmed in writing. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of Me, Myself and I. WARNING: Computer viruses can be transmitted via E-Mail. The recipient should check this email and any attachments for the presence of viruses. Me, Myself and I accepts no liability for any damage caused by any virus transmitted by this E-Mail. _______________________________________________ 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to telli...@itsco.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.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
