TenTec
[Top] [All Lists]

[TenTec] We Want AM

To: <tentec@contesting.com>
Subject: [TenTec] We Want AM
From: cooper@gmpvt.com (Tom Cooper)
Date: Wed, 25 Feb 1998 10:10:16 -0500
>>
>>I'd love it if TenTec offered AM receive through a low-cost 4-6 kHz
>>ceramic filter and diode detector in the Omni.  Other filters 
>>selectable,
>>as always.  Then, manufacture an outboard shortwave converter you 
>>could
>>attach to the AUX antenna. 
>>
>>It could be a simple crystal converter for the common SWBC bands, or 
>>maybe
>>a 0.5-30 mHz synthesized converter with 500 hKz steps and output on 15
>>meters.  Or something like that.  Such a converter could be sold to 
>>other
>>ham-band-only rig owners, too. 
>>
>

I built a simple converter using a NE602 for the xtal oscillator/mixer and
plug it into the "receive antenna" jack of an Omni-A and Delta 580, leaving
the TX/RX antenna switched to TX.  A 4 MHz xtal gives me the 49 M SWL band
(5.9 to 6.2 MHz) on 160 M.  The BBC (5.975 Mhz) comes in great with a 5' 
piece of wire for a converter antenna.  The passband is too narrow for music,
and tuning for perfect zero-beat is touchy, but the news sounds fine.

About $5 and an hour of work.

73,

Tom  W1EAT



--
FAQ on WWW:               http://www.contesting.com/tentecfaq.htm
Submissions:              tentec@contesting.com
Administrative requests:  tentec-REQUEST@contesting.com
Problems:                 owner-tentec@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm

<Prev in Thread] Current Thread [Next in Thread>