[K3CAL] interesting intermod read

[Jim Tetlow]

That is great we will research the county for the exact frequency and that
is still in the right price range. 

 

Regards,

Jim Tetlow

 

K3UGA

jimtetlow at chesapeake.net

 

  _____  

From: k3cal-bounces at mailman.qth.net [mailto:k3cal-bounces at mailman.qth.net]
On Behalf Of wa4prr at comcast.net
Sent: Tuesday, July 26, 2011 11:59 AM
To: Calvert Amateur Radio Association - K3CAL
Subject: Re: [K3CAL] interesting intermod read

 

Jim & All-

I just talked to Dale at PAR.  He recommends a custom High-Pass Filter to
eliminate both the 39 MHz pager and the 106.7 FM signal from reaching our
receiver front end.  It would be installed at the receiver input after the
duplexer.  It will be a custom filter, built for us, and will cost $119.00.
He can produce a filter in about 3 days after order.  If we want to pursue
this solution, I will need the exact frequency of the county pager.  

Good find on the filter company, Jim.

Ron

  _____  

From: "Jim Tetlow" <jimtetlow at chesapeake.net>
To: "Calvert Amateur Radio Association - K3CAL" <k3cal at mailman.qth.net>
Sent: Tuesday, July 26, 2011 11:22:29 AM
Subject: [K3CAL] interesting intermod read




All-FYI

 

While researching a filter for intermod. Most were limited to HT's and lower
power transceivers; not repeaters. I did however find a link on eHam.net
which I have attached above. Read review by NM7R; this may warrant some
investigation of PAR notch filters (I think we are looking at a different
frequency as 39mhz or so ) but these can be built custom, still under
$100.00 and he used this on a repeater. The downside it may limit
sensitivity on receive side. Just a thought, comments encouraged.

 

Regards,

Jim Tetlow

 

K3UGA

jimtetlow at chesapeake.net

 


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