[amsat-bb] Re: Who is using a IC-910 with Maspro Antennas?
PE0SAT | Amateur Radio
pe0sat at vgnet.nl
Wed Nov 21 09:03:51 PST 2012
I know of this filter, but these are for working FO-29 when the uplink
is 145 and the downlink 435.
The Harmonics produced by the 145 uplink signal interfere with the 435
downlink. Now I experience the
same with VO-52 but there the uplink 435 and the donwlink 145 ???
So why is the 435 uplink interfering with the 145 downlink ????
Could this be a harmonic problem???
73 Jan PE0SAT
On 21-11-2012 17:06, Dimitry Borzenko wrote:
> Hello Jan.
> Try "Desense" filter.
> More info here - http://www.amsat.org/amsat-new/articles/Mode-J/
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org]
> Behalf Of PE0SAT | Amateur Radio
> Sent: Tuesday, November 20, 2012 8:12 PM
> To: Amsat bb
> Subject: [amsat-bb] Who is using a IC-910 with Maspro Antennas?
> Thanks for reading this message. I have exchanged my FT-847 for an
> IC-910H and now when I try to
> work VO-52 my UHF uplink signal interferes with the VHF downlink. Are
> the any people out there that
> experience the same with this combination?
> I tried with and without pre-amp, RHCP and LHCP but the problems
> doesn't go away :(
> I do know that there can be problems when working FO-29 and a mode-j
> filter can solve this, but I
> never experiences this when working VO-52.
> 73 Jan PE0SAT
With regards PE0SAT
Internet web-page http://www.pe0sat.vgnet.nl/
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