[ICOM] IC7300 Smeter
Karel Matousek
ok1cf at atlas.cz
Fri Jan 13 04:47:08 EST 2017
Hi,
you can adjust (check) the S-meter in the ADJUSTMENT mode only.
Sensitivity adjustment is done when the power of SSG is set to +34dBu (-73dBm) for S9 and +90dBu (-17dBm) for S9 + 60 dB
Karel OK1CF
______________________________________________________________
> Od: guenter <guenter at dk1ri.de>
> Komu: ICOM Reflector <icom at mailman.qth.net>
> Datum: 13.01.2017 10:11
> Předmět: Re: [ICOM] IC7300 Smeter
>
Thank you, Those are the values I want to see :)
73
Guenter
DK1RI
Am 12.01.2017 um 17:06 schrieb Fern Rivard:
> I just checked this on my IC-7300 using my IFR service monitor and
> here's the results:
> NO pre-amp......50 uv or -73 dbm for S9
> Pre-amp 1 on.....80 dbm for S9
> Pre-amp 2 on.....85 dbm for S9
> This was all done on 14.140 mhz
>
>
> -----Original Message----- From: gfiber at comcast.net
> Sent: Wednesday, January 11, 2017 9:55 AM
> To: ICOM Reflector
> Subject: Re: [ICOM] IC7300 Smeter
>
> When I worked at Icom America, It's been 15 years since I left, most
> all the HF radios sensitivity met receiving specification with the
> preamp ON. .
> I have no idea how the IC-7300 is specified but your last post sounds
> correct 50 uV for S9 sounds reasonable with the preamp on.
> Best to check in the IC-7300 Service manual if one is available.
>
> Gary K8IZ
>
> ----- Original Message -----
>
> From: "Julio Peralta" <jperalta4 at verizon.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Wednesday, January 11, 2017 5:56:28 AM
> Subject: Re: [ICOM] IC7300 Smeter
>
> I'm not sure about the answer to your last question, perhaps someone
> else on
> the list may be able to answer your question.
>
> Julio
>
> -----Original Message----- From: Icom
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of Guenter
> Klomann
> Sent: Wednesday, January 11, 2017 8:45 AM
> To: ICOM Reflector
> Subject: Re: [ICOM] IC7300 Smeter
>
> ok, the Specification page show the sensitivity for preamp1 of -123dBm
> for
> 10dB S/N and SSB bandwidth
> S0 should be -127dBm. The Specification do not say, that the S0
> reading is
> -127dBm and S9 is 50 uV.
> So, is the S9 Smeter reading correct (50uV) with preamp1?
>
> Guenter, DK1RI
>
>> Julio Peralta <jperalta4 at verizon.net> hat am 11. Januar 2017 um 14:05
> geschrieben:
>>
>>
>> Check your manual on the Specifications page under Sensitivity. In my
>> manual not for the 7300, it shows sensitivity measurements done with
> Preamp 1 on.
>> Yours may be different so check the manual.
>>
>> Julio, W4HY
>>
>> -----Original Message----- From: Icom
>> [mailto:icom-bounces at mailman.qth.net] On Behalf Of Guenter
>> Klomann
>> Sent: Wednesday, January 11, 2017 5:45 AM
>> To: icom at mailman.qth.net
>> Subject: [ICOM] IC7300 Smeter
>>
>> The IC7300 S-meter readings vary with the settings of the
>> Preamp1/Preamp2/no_preamp.
>>
>> Wich setting show the the correct value measured at the antenna input?
>> (I did not found anything in the manual)
>>
>> The Flex show exact values independent of the the settings, the KX3
>> require
>> Preamp1 (as given in the manual)
>>
>> Tnx for answer
>> Guenter
>> DK1RI
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