[TenTec] Pegasus mic input is Hi-Z, unbalanced!

Robert & Linda McGraw K4TAX RMcGraw at Blomand.Net
Wed Mar 22 11:33:17 EST 2006


My Paragon manual lists the mike input Z as "200 - 50K ohms"  at a signal 
level of 5mV or -62dB.  This is not high Z folks.

That says any low Z mike will work just fine into this input.  While a true 
high Z mike will not work into the Pargaon and such as the input Z is too 
low.  High Z mikes like to see 1 meg or higher.  I operate my non-amplified 
D-104 into 3.3 megs on the Collins S-Line and the Heathkit Apache.  Now, if 
one uses the amplified version of the D-104 it will work just fine into a 
low Z input such as that of the Paragon or Scout.  And will work into a high 
Z load as well appearing only as a voltage source.  Remember, all D-104 
mikes are not created equal as the G stand makes the difference.

73
Bob, K4TAX


----- Original Message ----- 
From: "Bwana Bob" <wb2vuf at qsl.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Tuesday, March 21, 2006 7:41 PM
Subject: Re: [TenTec] Pegasus mic input is Hi-Z, unbalanced!


> my Corsair is Hi-Z, but my Paragon and Scout are low-Z.
>
>
> Bob WB2VUF
>
> Rob Atkinson, K5UJ wrote:
>
>> <<<mike input is high impedance (about 10K) unbalanced -- which is the
>> usual amateur practice (strangely).>>>
>>
>> this is amazing.  It is absolutely not the industry standard now.  with 
>> the
>> apparent exception of ten tec, hi Z input rigs have not been made in 
>> years.
>>   it sure goes to show you how important it is to ask the mfr.  I would 
>> have
>> never guessed TT was still using hi Z.  No wonder all these guys who buy 
>> ten
>> tec rigs have problems.  they have their low Z gear/mics on hand and 
>> their
>> audio sounds bad on the TT rigs.   As i mentioned last week, this is more
>> evidence of a company that has all cw ops on the payroll, hi.
>>
>> rob / k5uj




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