[Scan-DC] Re: 341.75

Fri Jan 7 09:23:22 EST 2005

My best guess would be since 341.750 is a nationwide Have Quick TOD freq
used by AWACS aircraft, and they frequently operate in and around the
Mid Atlantic now, it was done to reduce interference. You would have the
ground based TOD for testing, maintenance and mission prep so they have
a need on the ground. They just don't need to butt heads with the
operational world.

73 all de Larry

Larry Van Horn, N5FPW USN (Ret)
Monitoring Times Assistant Editor and Milcom Columnist
WUN Military/Government Newsletter Columnist
Grove Enterprises Technical Support Department
Telephone: V-828-837-9200/800-438-8155/F-828-837-2216

-----Original Message-----
From: Jeff [mailto:j333_76484 at yahoo.com] 
Sent: Monday, January 03, 2005 3:28 PM
To: 'Larry Van Horn'; 'Scan-DC'
Subject: RE: [Scan-DC] Re: 341.75

Larry,
Any thoughts on why Langley switched?. Last night I searched the entire
IFR for any references to 341.75. Came up empty handed. I know used to
be if I did that for that freq several MIL bases around would pop up.
Langley was one of them that had this freq listed as to HQ TIMING freq.
Now it doesn't nor does anybody else. Struck me as odd hat everybody
dropped it from the IFR. LFI now lists another freq as HQ timing.

> -----Original Message-----
> From: Larry Van Horn [mailto:larry at grove-ent.com]
> Sent: Monday, January 03, 2005 1:33 PM
> To: 'Jeff'; 'Scan-DC'
> Subject: RE: [Scan-DC] Re: 341.75
> 
> 341.750 is still a Have Quick TOD frequency frequently used in various

> parts of the US by AWACS aircraft. It is also as you pointed out the 
> primary for AR-20  It has also been used by Jstars aircraft. A lot of 
> the UHF Milair frequencies have multiple users/usages. It is a trend 
> which we are seeing more and more of in the last few years as DoD 
> continues to expand from their 100 and 50 kHz spacing to 25 kHz 
> spacing.
> 
> Larry Van Horn, N5FPW USN (Ret)
> Monitoring Times Assistant Editor and Milcom Columnist
> WUN Military/Government Newsletter Columnist
> Grove Enterprises Technical Support Department
> Telephone: V-828-837-9200/800-438-8155/F-828-837-2216
> 
> 
> -----Original Message-----
> From: scan-dc-bounces at mailman.qth.net 
> [mailto:scan-dc-bounces at mailman.qth.net] On Behalf Of Jeff
> Sent: Monday, January 03, 2005 3:02 AM
> To: Scan-DC
> Subject: Re: [Scan-DC] Re: 341.75
> 
> 
> --- ka3jjz at netscape.com wrote:
> >   Tonight, Jack wrote:
> > ======================
> > Picking up what sounds to be a Mid Air refuel on
> > 341.75.
> > Signal is very strong up here in Baltimore .Any idea
> > who it might be???
> > ======================
> >
> >   On our list in the newsletter, this is a known
> > Have Quick, as well as a past AWACS frequency.
> >
> >   73s Mike
> 
> 
> 
> 
> Figured I would throw some comment in here. Yes, this
> is a known AR freq for AR20, you can reference this
> from the AP-1B. And yes, It is also Have Quick
> related. In the past, I am not sure when it changed,
> you could bring up the IFR Supp and look at LFI and
> several other bases and see that several bases around
> the country actually listed this freq as a HQ timing
> freq. But now "NONE" of them list this as HQ timing on
> the IFR. So I may need to consider changing this on my
> list as well but not until I see some more discussion
> on it.
> 
> I think for my purposs I will just list it both ways
> until we can determine positively that HQ is no longer
> used on it. And that is gonna be a hard thing to
> confirm.
> 
> But even during the time frame it was listed on the
> IFR as HQ it was also listed in the AP-1B as an AR
> freq. So it was definetly a multipurpose type freq at
> that time. May very well still be. I remember about a
> year ago the question came up on one of the MILAIR
> related lists abut the use of the freq and I believe
> the consensus came back with it being a Dual Use type
> of freq depending on where you were at.
> 
> For me, this one is a pain in the butt as I pick up
> Cable TV on it at times. I remember the last time I
> heard it active a few weeks ago I was listening to an
> AR in progress as well as some quilting show. :-) So
> it is a "very MULTIPURPOSE" freq then huh??? :-)
> 
> The next time I catch HQ working I'll try to remeber
> to watch this one and see if it kicks off again. I
> suspect it will.
> 
> 
> 
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> 
> 
> =====
> Jeff
> Southern MD
> RS Pro-26, 92, 94, 94(A), 2035 w/OPTO OS535 Board,
> Uniden BC250D(x3),
> 780, & Icom PCR-1000(x2).
> Roof mounted ScanTenna on a 10' mast/tripod, fed by
> LMR-400.
> All of the computer controllable rigs are running
> under Signal
> Intelligence Products: http://www.scanstar.com/
> 
> 
> 
> =====
> Jeff
> Southern MD
> RS Pro-26, 92, 94, 94(A), 2035 w/OPTO OS535 Board, Uniden BC250D(x3), 
> 780, & Icom PCR-1000(x2). Roof mounted ScanTenna on a 10' mast/tripod,

> fed by LMR-400. All of the computer controllable rigs are running 
> under Signal Intelligence
> Products: http://www.scanstar.com/ 
> _______________________________________________
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> 