[MRIC] Fwd: simplex changes to emergency communications

[al.fitzsimons at att.net]

Brett et al,
Appears to be slim pickins for 2m FM voice simplex.  If we can't hold on to a reasonable number of 2m FM voice simplex frequencies- maybe we should make plans for practical alternatives.
Al, W3YRS
MEMA RO
-------------- Original message from brettham at aol.com: -------------- 


> RACES Officers, 
> 
> I attended a T-MARC meeting yesterday and wanted to make you aware that 
> there is some consideration being given to giving up some simplex 
> frequencies to digital repeater systems, and moving existing simplex 
> channels. When I mentioned that reducing the number of simplex channels 
> may adversely affect emergency communications, it was suggested RACES 
> move to the simplex frequencies at 144 MHz. After the meeting I looked 
> at the band plan on the t-marc.org web site and did not see any other 
> simplex frequencies other than those being removed or relocated at 146 
> MHz, so I sent the email below to the T-MARC board. I will let you know 
> of their response. I just wanted to make you aware of what is going on 
> in case you hear rumors. 
> 
> Note that there is no motion at T-MARC to do this right now, it is just 
> one proposal up for discussion. There may or may not be a vote on this 
> late this year or early 2009. 
> 
> FYI: There was a motion passed to temporarily allow digital repeaters 
> at 10 MHz offsets between the existing repeater frequencies, provided 
> there is enough geographical distance to not affect existing 
> conventional voice repeaters. This is the same plan SERA adopted south 
> of T-MARC. If it goes well, it will probably become a permanent change. 
> 
> Brett Hammond - K3TAL 
> Chairman, MRIC 
> 
> ----- Original Message ----- 
> From: Brett Hammond 
> 
> To: t-marc at columbiaara.org 
> 
> Sent: Monday, July 14, 2 
> 008 9:19 AM 
> 
> Subject: simplex changes to emergency communications 
> 
> T-MARC Board, 
> 
> I am the person that attended the meeting yesterday and expressed some 
> concern about negatively impacting emergency communications if we 
> eliminate the number of simplex voice frequencies available. 
> 
> After our meeting yesterday, I went to look for the other simplex 
> frequencies at 144.?? MHz that were suggested and could not find any 
> voice simplex mentioned in your band plan, other than those being 
> eliminated/moved at 146.??. For your convenience I have included your 
> 2-meter band plan from your web site below. Can someone please tell me 
> what frequencies current RACES operations in Maryland should move to so 
> as not to receive interference from anyone other than voice simplex? 
> Sharing the frequency with a mode other than voice simplex would be a 
> problem. During an emergency we can request voice move to another 
> frequency if there is a conflict, but we can't do much about digital or 
> repeater interference during an emergency. Your assistance would be 
> much appreciated. Thank you. 
> 
> Brett Hammond - K3TAL 
> Talbot County RACES Officer  
> 
> 144.00-144.10 CW 
> 144.00-144.50 CW, SSB, AM, Beacons, Satellites, (NO FM or digital 
> operatiom) 
> 144.51-144.89 Repeater inputs 
> 144.91-144.99 Repeater inputs/ outputs "Replexers" (NO digital) 
> 145.01-145.09 Digital 
> 145.11-145.49 Repeater outputs 
> 145.50-145.80 Digital 
> 145.80-146.00 Satellites (NO FM or digital operation) 
> 146.01-1 
> 46.40 Repeater inputs 
> 146.415-146.595 Voice simplex (NO repeater or digital operations) 
> 146.52............ National simplex calling frequency 
> 146.61-147.39 Repeater outputs 
> 147.435-147.585  Replexers  (NO digital operation) 
> 147.615-147.99 Repeater inputs 
> 
> ______________________________________________________________ 
> This email list is for the use of RACES Officers and Emergency Managers. Only 
> email related to the Maryland RACES Interoperability Committee (MRIC) of the 
> Maryland Emergency Management Association should be sent to this email reflector 
> list. All emails must be in plain text format (no HTML). 
> MRIC mailing list 
> Home: http://mailman.qth.net/mailman/listinfo/mric 
> Help: http://mailman.qth.net/mmmain.htm 
> Post: mailto:MRIC at mailman.qth.net