[ICOM] Re: Icom's on 60-Meters - and HOW to determine

[Larry Benko]

Mac,

I will add the 746 original to the web page.  Was nice chatting with you 
a few days ago.  For everyone else, the 746 original was expected to 
work ok on 60m since the 40m low pass output filter (and not the 80m 
filter) at 5.3 MHz.

73, Larry W0QE

D C *Mac* Macdonald wrote:
> Greetings, Jim, Larry, and group!
>  
> Well, I have done the mods.dk mod to extend the TX frequency
> range capability of my IC-746 (non-Pro).
>  
> http://www.mods.dk/print.php?ArticleID=2433
> by Lyndel, NL7T wascthe mod version I used.  Only one diode
> is removed in a USA version.
>  
> The pictures included at
> http://www.mods.dk/pring.php?ArticleId=263 were VERY helpful
> in accurately determining  WHICH  diode needs to be removed.
>  
> While I don't have exact total current readings for all bands,
> I did hook up a 100W Bird dummy load and Bird 43 Wattmeter
> with 100H element.  My power output on ALL bands ran the Bird
> to just over full scale.
>  
> Maximum current draw (shown on meter of Astron SS-25M supply)
> was about 17 to 17.5 Amps on 10 and 6 meters.  Actually, about
> the lowest current draw (just over 14 Amps)was on the 60m
> frequencies.
>  
> Shortly after completing the mods and tests, I put the rig
> back on the air.  I announced my presence on 5403.5 and a K4
> came back to me, but I had too much local noise for me to
> copy him.
>  
> I then checked 5330.5 where I had heard a QSO and checked in
> and was immediately recognized.  One of the fellows in the QSO
> was the same guy who had stimulated me to get on 60, a friend
> near where we frequently spend weekends.  All commented on
> how good my signal was.
>  
> I did learn that the onboard tuner doesn't seem to like to work
> excursions much outside the regular ham bands.  I then put my
> LDG AT-200 Pro autotuner in line and it tuned up my ladder-line
> fed 120' dipole very nicely.
>  
> Anyway, there you have it and Larry can add these comments to
> his webpage at http://www.bnk.com/w0qe/60m_operation.html
>  
> 73 and have fun on 60m!
>  
> Mac, K2GKK/5
> Oklahoma City
>  
>
>  
>  
> * In my many years, I have come to the conclusion that one useless *
> * man is a shame, two is a law firm and three or more is Congress. *
>  
> * -- John Adams (1735- 1826) * 
>  
>
> From: JimMiller at STL-OnLine.Net
> To: k2gkk at hotmail.com
> Subject: Icom's on 60-Meters - and HOW to determine
> Date: Mon, 22 Dec 2008 20:32:11 -0600
>  
> Mac,
>
> Below is the message Larry was referring to. I hadn't erased it yet. I had
> asked the original question back then about the 746 original and did 
> not see
> it listed on the page BUT the process for determining was illuded to 
> if you
> read the entire thing instead of looking for just a listed radio. I didn't
> notice the radio you were questioning but good luck.
>
> The mod to the radio to get older radios capable of going into 
> transmit mode
> when out of band will have to be found on a site such as mods.com or
> something similar.
>
> Responses like you received makes one not want to ask any questions.
>
> 73, Jim KG0KP
>
>
> ----- Original Message ----- 
> From: "Larry Benko" <xxw0qe at comcast.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Thursday, November 27, 2008 9:41 PM
> Subject: Re: [ICOM] Icom's on 60-Meters
>  
> Take a look at http://www.bnk.com/w0qe/60m_operation.html
> for which Icom radios play well on 60m and why. Your info is not correct.
>
> 73, Larry W0QE
>