[Yaesu] pre-amp for FT-1902M

[KB0NLY]

The 1802/1902 radios that I have played with all had a great receiver.  I 
would suspect something else is wrong before suspecting the radio or adding 
a preamp and bringing up the noise floor.

The AEA Isopole is nothing more than a stacked 5/8w vertical, its roughly 
3-4db of gain at BEST.  You mentioned the antenna is up with the tip at 
100ft, so you must have 100ft+ of feedline perhaps?  Whats the age and type 
of feedline your using?  You could be losing at much as your gaining with 
poor coax, 2-3db over the length of the run, or more!

I used to have an AEA Isopole, so don't think I'm just ragging on it without 
facts.  It does work "good" for what it is.  But then I switched to a Huster 
G6 and it was NIGHT AND DAY....  Now I run dualband antennas that 6/8db 
gain, and though I have a preamp I hardly use it.  The Isopole is a rugged 
antenna, I will give it that, and almost maintenance free, but its not the 
highest gain your going to find.

73,

Scott KB0NLY



--------------------------------------------------
From: "David  Thompson" <thompson at mindspring.com>
Sent: Tuesday, August 17, 2010 2:31 PM
To: <yaesu at mailman.qth.net>
Subject: [Yaesu] pre-amp for FT-1902M

> I have a FT-1802M  that get good reports but like many 2 meter FM base
> models is really deaf.  I had an Amcomm 225 and a Radio Shack 242 before
> that were better but still marginal on distant simplex stations.  My 
> antenna
> is an AEA 2 meter Isopole with the tip at over 100 feet.
>
> I got around the problem with the old Amcomm as I used a B 108 brick with
> that and it contained a great pre-amp.  Marginal signals became 100%
> readable.  I looked at pre-maps and I might as well buy another 2 meter 
> amp
> with a pre-amp as most commercial pre-amps run between $150 and $200.
>
> Any suggestions?  I have two pre-amps that don't switch (allow transmit) 
> and
> they seem to perk up received signals.
>
> 73 Dave K4JRB
>
>
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