[Mobile-Portable] IC706

[Larry Comden]

Jim,

We used 9 simplex freqs, 5 in the 146 and 4 in the 147 range. Our repeater
coordinator gave us hell several years ago for stepping on some repeater
turf. We we're not aware that there were repeaters with weird splits using
some of the freqs. A subsequent search of the supposedly active freqs came
up almost empty (some were >100 miles from our activity!!!!!!!).

The contest also used SSB and CW - no problems at the 144 end of the band
also much less activity.

Anyway, I'm intersted in the stripline concept. Sorta like the tuned stubs
the HF guys use.

73

Larry K3VX


----- Original Message ----- 
From: "Jim Miller" <JimMiller at STL-OnLine.Net>
To: "Mobile-Portable Reflector" <mobile-portable at mailman.qth.net>
Sent: Sunday, January 14, 2007 11:30 PM
Subject: Re: [Mobile-Portable] IC706


> I don't know if you used all frequencies avail to 2M simplex for your
> contest BUT for QRM problems when need, I have an old "strip-line" filter
> that I bought from a fellow ham who made them maybe 14 or 15 years ago.
It
> works great and really narrows the receive freq.  I had trouble with
> intermod from paging towers in some areas I traveled every day and it was
> quite a pain.  The filter did  and does work great.  Not real pretty but
it
> WORKS.  It has to be retuned when moving from 146 simplex to 147 simples
etc
> but not a problem as you just touch up the knob while watching the swr
> meter.
>
> 73, Jim
>
> ----- Original Message ----- 
> From: "Larry Comden" <lcomden at comcast.net>
> To: "Mobile-Portable Reflector" <mobile-portable at mailman.qth.net>
> Sent: Sunday, January 14, 2007 4:44 PM
> Subject: [Mobile-Portable] IC706
>
>
> We just ran our club 2M simplex contest with 50 to 100 stations in the
local
> area.. I was mobile with my IC706 MkIIG. Strong signals on adjacent
(15KHz)
> FM channels were bleeding thru so badly that weak signals (the life blood
of
> a contest like this) were swamped. We were definitely not operating side
by
> side. My competitors were 3 or more miles away - some mobiling some fixed.
> All stations limited to 50W.
>
> I've also noticed this effect in other locations near paging, radio and TV
> transmitters. Does anyone on the list know what front end VHF/UHF
filtering
> is done in this rig?
>
> At home on HF I can use the RF gain to reduce the effect.
>
>
> Larry K3VX
> ----
> Your Moderator: Dick Flanagan K7VC, mobile-portable-owner at mailman.qth.net
>
> ----
> Your Moderator: Dick Flanagan K7VC, mobile-portable-owner at mailman.qth.net
>