[ICOM] 7800

[mecker at peoplepc.com]

Have one. Trying to find out what to expect
overall from this models S-meter. Since
I have a hearing loss, its not easy for me
to test (s+n/n) Wondering if this S meter
(being digital and all) tends
to be conservative. Rigs like my ft-847
greatly exaggerate s reports.
-Marc.

----- Original Message ----- 
From: <k4lxv at bellsouth.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Wednesday, July 02, 2008 11:52 PM
Subject: Re: [ICOM] 7800


Your receiver sensitivity can be measured if you have access to a calibrated 
signal generator. A low cost alternative is to purchase an Elecraft XG-1 or 
XG-2 receiver test  signal source kit. $39, & $59 respectively. Once 
assembled you can them test your receiver sensitivity and verify your S 
meter setting.
-------------- Original message from <mecker at peoplepc.com>: -------------- 


> My S meter on the 7800, Im using
> without the pre-amp, is rather conservative,
> and seems to be more conservative lately. I remember
> when I first got it, signals 20-30 over were more
> common on 40 meters, for example. I dont remember
> if the pre-amp was on or not when I did this
> observation.
>
> When I had the radio upgraded, Icom said it was
> no problem, back then,
>
> but it seems as though signals are a little less
> today. EG: used to get 40-60 over signals
> on 80m when living in Fl, whereas now
> I get up to 20, and occassionally a 30.
> I wonder if the agc is holding back or
> something. Now live on a mountain in TN.
>
> Antennas similar to those used in FL.
> Using a folded dipole up 60 feet, a 160 meter dipole
> up 70 feet, and a 10m vertical up 110 feet.
>
> The receive sounds great, but I wonder if the
> front end is particularly susceptible to static buildup
> on wire based antennas....
>
> Wonder what other users find, is it just a more
> accurrate S meter (being digital based), perhaps
> being on top of a mountain (cumberland plateu)
>
> or is there an adjustment for the agc that
> is digitally controlled (other than fast slow med)
> or holding down buttons during these settings.
>
> Have tried fast med and slow settings, roofing filter
> and bandwidth settings, all with mainly the same
> overall receive.
>
> Any users who have found this or have ideas
> about this
> ---- 
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
----
Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
Icom Users Net: Sundays, 1700Z, 14.316 MHz
Icom FAQ: http://www.qsl.net/icom/