[Icom] Mods for ICOM 756 PROII

Tue, 21 Jan 2003 19:43:54 -0800

Sorry but I don't buy this one as you do NOT NEED any form of antenna tuner
to transmit into a 50 ohm dummy load! Try and get out of this one now!
There are far too many hams out there who have insisted that it is their god
given right to have their transceivers modified so that they are general
coverage transmit. You should remember or realize that most hf ham
transceivers have band pass filters that are made specifically for the ham
bands which were allowed at the time of manufacture. For instance with the
proposed new hf band around  5 mhz will or has most likely had a lot of hams
yearning to do the general coverage mode to the hf ham rigs. Unfortunately,
most of these transceivers which do not a proper band pass/or low pass
filter to cover that part of the hf spectrum will be "out of acceptable
tolerances" with harmonics, etc.  73's from  Fern

-----Original Message-----
From: Dick Flanagan <[email protected]>
To: [email protected] <[email protected]>
Date: Tuesday, January 21, 2003 5:45 PM
Subject: Re: [Icom] Mods for ICOM 756 PROII

>It's amazing what you can do with a dummy load.
>
>73, Dick
>
>At 05:39 PM 1/21/2003, you wrote:
> >Clete,
> >
> >Do I understand you correctly? You transmitted at every 100 kHz in the HF
> >spectrum and at quite a few points at MF? If so, you are putting your
> >Amateur Radio license at risk!
> >
> >73, Frank W3UHF
> >
> >
> >
> >
> >
> >
> >>From: Cletus W Whitaker <[email protected]>
> >>Reply-To: [email protected]
> >>To: [email protected]
> >>Subject: Re: [Icom] Mods for ICOM 756 PROII
> >>Date: Tue, 21 Jan 2003 20:00:14 -0500
> >>
> >>de WB2CPN South Central Pennsylvania     2003.01.21
> >>
> >>I've used a few ICOM transceivers, and a TS-940, on frequencies
> >>outside the amateur bands.  One test for the antenna tuner was to
> >>measure at all the 100 KHz points from 30 MHZ down to about 1600
> >>KHZ.  I never had a problem with full output until the 756ProII
> >>came along.  Not to point fingers, but it's possible ICOM planned
> >>the roll-off in the 5 to 6 MHZ area to plan for the new amateur
> >>band being established there.  Of course, they would have a minor
> >>snip-snip to a few band pass components for sale at that time.
> >>And, I could be wrong.  If Adam knows what type  filters are in
> >>there we could maybe reverse engineer and undo what ICOM did to
> >>cause the roll-off.            73   Clete
> >>----
> >>Your Moderator: Dick Flanagan W6OLD, [email protected]
> >>Icom Users Net: Sundays, 1700Z, 14.315 MHz
> >>Icom FAQ: http://www.qsl.net/icom/
> >
> >
> >_________________________________________________________________
> >Tired of spam? Get advanced junk mail protection with MSN 8.
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> >
> >----
> >Your Moderator: Dick Flanagan W6OLD, [email protected]
> >Icom Users Net: Sundays, 1700Z, 14.315 MHz
> >Icom FAQ: http://www.qsl.net/icom/
> >
> >
>--
>Dick Flanagan W6OLD ARRL NV SM
>E-mail: [email protected]
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>