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Re: [TenTec] RF Speech Processor "TX IMD"

To: tentec@contesting.com
Subject: Re: [TenTec] RF Speech Processor "TX IMD"
From: Jim Brown <k9yc@audiosystemsgroup.com>
Reply-to: k9yc@arrl.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 24 Jun 2013 12:53:54 -0700
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
On 6/18/2013 1:07 PM, Rick - DJ0IP / NJ0IP wrote:
The current cost of a set of BPF's for the
classical ham bands (but not the WARC bands) is $800 - more than some of
these transceivers cost.

I'm late to reading this thread, so please excuse the late comments. The best deal on high quality bandpass filters for use at the 100-200W level is 5B4AGN's TXBPF group purchase kit, based on the W3NQN designs published in QST in the 90s. It comes in at about $400 per set of six filters, including band decoders and relay drivers for an external antenna switch, and in a nice enclosure. For decent factory-built filters you've got to go to Array Solutions for the W3NQN units and switchbox. They're now also selling a modular box.

I maintain the OEMs could fix the cause of the
problem for a lot less than $800.

Yes, certainly at the <200W power level.

73, Jim K9YC.
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