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Old January 19th 04, 05:26 AM
TchrMe
 
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Default SX-28A vs SX-42

Hello all,
After recapping and aligning both my 28A and my 42, I did a side by side
comparison. Is it my imagination or is the 28A more sensitive on the
frequencies that rcvrs both cover? 73Mike KF6KXG
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Old January 19th 04, 08:47 AM
Nc183d
 
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I don't have an SX42 to compare it with, but the SX28A is a pretty decent set,
considering the time frame when it was made..... One can spend years comparing
these old bandcruisers against each other. Usually each individual set has one
outstanding characteristic that sets it apart from its competitors. That's what
keeps it from being sold off.
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Old January 19th 04, 07:53 PM
Frank Dresser
 
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"TchrMe" wrote in message
...
Hello all,
After recapping and aligning both my 28A and my 42, I did a side by

side
comparison. Is it my imagination or is the 28A more sensitive on the
frequencies that rcvrs both cover? 73Mike KF6KXG


Are the antenna impedances the same between the two radios? The older
SX 28A might better match your antenna.

Frank Dresser


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Old January 20th 04, 05:16 AM
TchrMe
 
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Thanks to those who responded to my 42 vs 28A post. Frank, I am just using a
random length wire antenna, but you raised an interesting point about the
antenna possibly being a better match for one than the other. I will go back to
the manuals and give it some thought. 73 Mike KF6KXG
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Old January 20th 04, 06:48 PM
Frank Dresser
 
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"TchrMe" wrote in message
...
Thanks to those who responded to my 42 vs 28A post. Frank, I am just

using a
random length wire antenna, but you raised an interesting point about

the
antenna possibly being a better match for one than the other. I will

go back to
the manuals and give it some thought. 73 Mike KF6KXG


Makes sense. It's my impression most pre-war designs used a higher
impedance antenna input which would work better with an end fed random
wire.

Frank Dresser




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Old January 21st 04, 04:28 PM
Henry Kolesnik
 
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Beg, borrow or steal and HP 8640B sig gen. It'll go down to about a 0.013
microvolts (-145dB) and you'll find the floor for each long bvefore you
reach the limits of the 8640B!
hank wd5jfr
"TchrMe" wrote in message
...
Hello all,
After recapping and aligning both my 28A and my 42, I did a side by

side
comparison. Is it my imagination or is the 28A more sensitive on the
frequencies that rcvrs both cover? 73Mike KF6KXG



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Old January 23rd 04, 07:34 AM
TchrMe
 
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Hank,
I will keep my eyes open for one at the swap meets. 73 Mike KF6KXG
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