[Motorola] Was Encoder, Now MICOR and Channel Elements....

Thu Jan 1 23:33:04 EST 2009

Howdy Dan,
    We in MARS can use pretty much any piece of Ham or  commercial 
gear that will tune into the bands. I know what you mean about money 
pit, had a Micor working as a repeater for 10 years. About every 4 months, 
there was always some part that failed and took it down for a few days at a  
time. 
     I can even build a Ramsey kit if need be. Now  in 2013 when MARS 
exemption 
to NTIA Federal Frequencies bandwidth reqs (See the red book of NTIA for  
details),
we will have to have equipment that can do the 12.5 instead of 25 KHz step  
and 
3.5 instead of 5 KHz width on VHF. 
    Some of the new Yaesu and Kenwood rigs will do the  narrow splits and 
transmission, BUT
have gone back to having to do a hardware modification to do MARS/CAP  
operations. And 
many also have added those Torx security screws to the cases so you can't  
just 'open them up'
and they charge about $250 to do the mod for you... 
    I used to really love building repeaters from GE  MASTR II's But those 
are rare finds these days...
73 John W6HNC/AAR0MI OR

In a message dated 1/1/2009 6:16:51 P.M. Pacific Standard Time,  
k0dan at comcast.net writes:

MICORs were great radios in their day, but whatever treasure trove you  have 
just might be an achor around your neck! If you're rebuilding one for the  
thrill of it, that's cool but if you want to do a whole fleet of them, I think  
you're putting a LOT of resources into a money pit. You might almost do better  
cannabilizing the RF amps out of the MICORs, recycle the rest of the 
hardware,  buying modern low power exciters, and ending up with modern high power 
radios.  Just my $0.02. Oh yeah, not sure if MARS rges let you do all that, but 
that'd  be a fun ham club project.
73
k0dan

----- Original Message ----- 
From:  _Johnjewkes at aol.com_ (mailto:Johnjewkes at aol.com)  
To: _motorola at mailman.qth.net_ (mailto:motorola at mailman.qth.net)  
Sent: Thursday, January 01, 2009 7:59  PM
Subject: [Motorola] Was Encoder, Now  MICOR and Channel Elements....

Sad but true, one of the MARS members in Ohio confirmed CEH is gone,  having 
sold all their components to ICM, due to cost of stuff.... Oh Well...  But now 
i have info... and no I guess reading up on these military monster  Micors 
they are actually 30 channels and do a simplex or duplex switching to  do '60' 
channels. (IE 1 is duplexed (one tx, one rx frequency) Channel two  is 
simplexed (TX/RX on same frequency from channel 1). I am not sure how  they would do 
this one either, since the frequency conversion for TX and RX  is different 
looking at the math, I don't quite get it...

Big heavy drawer units, about twice the size of commercial micors I  have had 
in the past, the receivers are 142-153 MHz already, and most had  first 
frequency of 148.650 currently in the MARS pool, formerly in the USAF  pool. None 
have the heads, but all have the cables, power cords and are ALL  100 Watt 
units. Mounting instructions deal with mounting them inside of  mobile comm 
shelters. No mention of operating in jeeps, cars etc...  Wondering if I could use a 
controller, one radio for transmitter the other  for receiver since I always 
seem to have problems once I add hot power to  both TX/RX during conversion.... 

TNX though... I guess I will get them from ICM/BoMar...anyone have  their 
contact info???
73 de John W6HNC/AAR0MI OR

In a message dated 1/1/2009 5:14:02 P.M. Pacific Standard Time,  
kuggie at kuggie.com writes:

Geoff Fors wrote:
>  I meant to say channel element  banks, not rebuilders.

Then I would have to agree, as I believe all  of the places like "Channel 
Element Headquarters" are no longer in  business.

Kevin
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