From bart.lee.k6vk at gmail.com  Mon Jun  1 16:51:34 2026
From: bart.lee.k6vk at gmail.com (Bart Lee)
Date: Mon, 1 Jun 2026 13:51:34 -0700
Subject: [MRCA] MRCA Digest, Vol 266, Issue 1
In-Reply-To: <mailman.43.1780329618.2400.mrca@mailman.qth.net>
References: <mailman.43.1780329618.2400.mrca@mailman.qth.net>
Message-ID: <CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>

HELP - PLEASE UNSUBSCRIBE ME ASAP. Thank You. Bart Lee
-- --
Bart Lee

Texts only to: 415 902 7168

www.bartlee.com

{Bart(dot)Lee(dot)K6VK(at)gmail(dot)com}
<http://www.lawforhams.com/>



On Mon, Jun 1, 2026 at 9:01?AM <mrca-request at mailman.qth.net> wrote:

> Send MRCA mailing list submissions to
>         mrca at mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
>         http://mailman.qth.net/mailman/listinfo/mrca
> or, via email, send a message with subject or body 'help' to
>         mrca-request at mailman.qth.net
>
> You can reach the person managing the list at
>         mrca-owner at mailman.qth.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of MRCA digest..."
>
>
> Today's Topics:
>
>    1. Re: MRCA Digest, Vol 265, Issue 60 Net (Mike Christie)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 31 May 2026 17:39:51 +0000 (UTC)
> From: Mike Christie <mzfb at aol.com>
> To: "mrca at mailman.qth.net" <mrca at mailman.qth.net>
> Subject: Re: [MRCA] MRCA Digest, Vol 265, Issue 60 Net
> Message-ID: <963725913.7202174.1780249191153 at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
>  MeirI made the net also.?MikeW1ZFB
>     On Sunday, May 31, 2026 at 12:07:54 PM EDT,
> mrca-request at mailman.qth.net <mrca-request at mailman.qth.net> wrote:
>
>  Send MRCA mailing list submissions to
> ??? mrca at mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
> ??? http://mailman.qth.net/mailman/listinfo/mrca
> or, via email, send a message with subject or body 'help' to
> ??? mrca-request at mailman.qth.net
>
> You can reach the person managing the list at
> ??? mrca-owner at mailman.qth.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of MRCA digest..."
>
>
> Today's Topics:
>
> ? 1. Re: [MMRCG] MMRCG Saturday net running on 7285 (w1nzr at cs.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 31 May 2026 11:26:31 +0000 (UTC)
> From: "w1nzr at cs.com" <w1nzr at cs.com>
> To: mmrcg at groups.io, mrca at mailman.qth.net,? <wf2u at ws19ops.com>
> Subject: Re: [MRCA] [MMRCG] MMRCG Saturday net running on 7285
> Message-ID: <1917771876.6871562.1780226791758 at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
>  Tnx for the note Meir, sorry I didn't make it...
> 73,
> Brown W1NZR?
> ? ? On Saturday, May 30, 2026 at 10:20:36 AM EDT, Meir Ben-Dror WF2U <
> wf2u at ws19ops.com> wrote:?
>
>  N9KZI, KA3EKH, K3TZJ, KE8ULR, KW1I and myself.
> 73, Meir WF2ULandrum, SC_._,_._,_Groups.io Links:
>  You receive all messages sent to this group.
>
> View/Reply Online (#5217) | Reply to Group | Reply to Sender | Mute This
> Topic| New Topic
> Your Subscription |Contact Group Owner |Unsubscribe [w1nzr at cs.com]
>
> _._,_._,_?
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://mailman.qth.net/pipermail/mrca/attachments/20260531/b37b7c79/attachment-0001.html
> >
>
> ------------------------------
>
> _______________________________________________
> MRCA mailing list
> MRCA at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/mrca
>
>
> End of MRCA Digest, Vol 265, Issue 60
> *************************************
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://mailman.qth.net/pipermail/mrca/attachments/20260531/2a9570a8/attachment-0001.html
> >
>
> ------------------------------
>
> _______________________________________________
> MRCA mailing list
> MRCA at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/mrca
>
>
> End of MRCA Digest, Vol 266, Issue 1
> ************************************
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260601/5b93b3c1/attachment.html>

From Foltarz at rocketmail.com  Mon Jun  1 20:39:51 2026
From: Foltarz at rocketmail.com (Mark Foltarz)
Date: Tue, 2 Jun 2026 00:39:51 +0000 (UTC)
Subject: [MRCA] CHU QRT
In-Reply-To: <CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>
References: <mailman.43.1780329618.2400.mrca@mailman.qth.net>
	<CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>
Message-ID: <211593323.134156.1780360791524@mail.yahoo.com>

 So Long, CHU, And Thanks For All The Time Signals

| 
| 
| 
|  |  |

 |

 |
| 
|  | 
So Long, CHU, And Thanks For All The Time Signals

In the long ago, pre-internet days when your clock project wasn?t an ESP32 getting its timing via NTP over WiFi,...
 |

 |

 |


de WA4AMMark  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/f0d01458/attachment-0001.html>

From smithab11 at comcast.net  Mon Jun  1 22:15:31 2026
From: smithab11 at comcast.net (B. Smith)
Date: Mon, 1 Jun 2026 22:15:31 -0400
Subject: [MRCA] Field Day Power
Message-ID: <d9abe5dd-d20a-4076-9d3d-29a216017d54@comcast.net>

Thinking about a military radio Field Day. Attach photo of my all 
purpose Field Supply for use on my BC-1306, GRC-9, GRC-109, RS-6 etc. I 
fabricated a chassis power connector from an PL-279 connector. I used to 
have a bunch? of those French medical boxes but have either used them or 
gave em all away. They are still available from surplus dealers and make 
nice power supply enclosures.
Z

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260601/af2adc5e/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: semk4che.gif
Type: image/gif
Size: 9511 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260601/af2adc5e/attachment-0001.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bcpwrK4che.jpg
Type: image/jpeg
Size: 220442 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260601/af2adc5e/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bcpwrK4che.jpg
Type: image/jpeg
Size: 220442 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260601/af2adc5e/attachment-0003.jpg>

From jeepcomms at outlook.com  Mon Jun  1 23:20:08 2026
From: jeepcomms at outlook.com (Jeep Platt)
Date: Tue, 2 Jun 2026 03:20:08 +0000
Subject: [MRCA] CHU QRT
In-Reply-To: <211593323.134156.1780360791524@mail.yahoo.com>
References: <mailman.43.1780329618.2400.mrca@mailman.qth.net>
	<CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>
	<211593323.134156.1780360791524@mail.yahoo.com>
Message-ID: <PH7PR84MB1679DEB48A780ECE35749550B9122@PH7PR84MB1679.NAMPRD84.PROD.OUTLOOK.COM>

They have been the cornerstone for go/no-go receiver tests around here ever since WWV moved out of Beltsville MD.   I have a 5 channel WWV receiver but CHU always seemed to be there.  I guess we all have to go back to " National Standard of Bureaus WWZ. When the time returns, the tone will be 440 cycles".....
K3HVG

Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android<https://aka.ms/AAb9ysg>
________________________________
From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> on behalf of Mark Foltarz via MRCA <mrca at mailman.qth.net>
Sent: Monday, June 1, 2026 8:39:51 PM
To: mrca at mailman.qth.net <mrca at mailman.qth.net>
Subject: [MRCA] CHU QRT

So Long, CHU, And Thanks For All The Time Signals<https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/>

<https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/>
So Long, CHU, And Thanks For All The Time Signals

In the long ago, pre-internet days when your clock project wasn?t an ESP32 getting its timing via NTP over WiFi,...

de WA4AM
Mark
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/d214a2da/attachment.html>

From farmer.rob.flory at gmail.com  Tue Jun  2 07:28:42 2026
From: farmer.rob.flory at gmail.com (Rob Flory)
Date: Tue, 2 Jun 2026 07:28:42 -0400
Subject: [MRCA] Field Day Power
In-Reply-To: <d9abe5dd-d20a-4076-9d3d-29a216017d54@comcast.net>
References: <d9abe5dd-d20a-4076-9d3d-29a216017d54@comcast.net>
Message-ID: <CAFcNxxXfTusOKqK1=8pTfdpe-_wx3ZTvn58okuWpd5Z0P76Oyg@mail.gmail.com>

Zorro, nice repurposing of the medical tin.

I may have to get my TRC-77 out in the field for field Day.

Speaking of the TRC-77 in modern use, I wonder how hard it would be to make
an Arduino controller to tune progrocks with external thumbwheels or even
knob for kc and thumbwheel for Mc.

I did manage to work a handful of stations with my TBX in the field some
years back.  I can't remember if I ran the transmitter on the EF generator
or on the dynamotors.  Probably the latter.

RF

On Mon, Jun 1, 2026 at 10:15?PM B. Smith via MRCA <mrca at mailman.qth.net>
wrote:

> Thinking about a military radio Field Day. Attach photo of my all purpose
> Field Supply for use on my BC-1306, GRC-9, GRC-109, RS-6 etc. I fabricated
> a chassis power connector from an PL-279 connector. I used to have a bunch
> of those French medical boxes but have either used them or gave em all
> away. They are still available from surplus dealers and make nice power
> supply enclosures.
> Z
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/00185885/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: semk4che.gif
Type: image/gif
Size: 9511 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/00185885/attachment-0001.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bcpwrK4che.jpg
Type: image/jpeg
Size: 220442 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/00185885/attachment-0001.jpg>

From mstangelo at comcast.net  Tue Jun  2 10:15:41 2026
From: mstangelo at comcast.net (mstangelo at comcast.net)
Date: Tue, 2 Jun 2026 10:15:41 -0400 (EDT)
Subject: [MRCA] Field Day Power
In-Reply-To: <CAFcNxxXfTusOKqK1=8pTfdpe-_wx3ZTvn58okuWpd5Z0P76Oyg@mail.gmail.com>
References: <d9abe5dd-d20a-4076-9d3d-29a216017d54@comcast.net>
	<CAFcNxxXfTusOKqK1=8pTfdpe-_wx3ZTvn58okuWpd5Z0P76Oyg@mail.gmail.com>
Message-ID: <112199030.61988.1780409742016@connect.xfinity.com>

I would recommend a Si5351 synthesizer board with Arduino controller.

Here is an example that is overkill but you will get the idea. I did order Si5351 Synthesizers from Jason it the past

https://www.9h5bm.com/product/avr-gated-gps-locked-frequency-counterstandard

I don't code but if I find one I will send you a link.

Mike N2MS

> On 06/02/2026 7:28 AM EDT Rob Flory via MRCA <mrca at mailman.qth.net> wrote:
> 
> 
> Zorro, nice repurposing of the medical tin.
> 
> I may have to get my TRC-77 out in the field for field Day.
> 
> Speaking of the TRC-77 in modern use, I wonder how hard it would be to make an Arduino controller to tune progrocks with external thumbwheels or even knob for kc and thumbwheel for Mc.
> 
> I did manage to work a handful of stations with my TBX in the field some years back. I can't remember if I ran the transmitter on the EF generator or on the dynamotors. Probably the latter.
> 
> RF

From w6iee.73 at gmail.com  Tue Jun  2 10:25:15 2026
From: w6iee.73 at gmail.com (Jason WA6BBQ)
Date: Tue, 2 Jun 2026 07:25:15 -0700
Subject: [MRCA] =?utf-8?q?TR-77/prog_rock=E2=80=A6Field_Day_Power?=
In-Reply-To: <112199030.61988.1780409742016@connect.xfinity.com>
References: <d9abe5dd-d20a-4076-9d3d-29a216017d54@comcast.net>
	<CAFcNxxXfTusOKqK1=8pTfdpe-_wx3ZTvn58okuWpd5Z0P76Oyg@mail.gmail.com>
	<112199030.61988.1780409742016@connect.xfinity.com>
Message-ID: <CAA39_hLYkSDOH_qkg5vRJz1XaLiNS7uXHPYKGTuL+n01BMP9pw@mail.gmail.com>

If this thing will cooperate, I?m attaching the document I worked from to
adapt a pair of QRP Labs ProgRock II?s to my TRC-77a.

Jason WA6BBQ

[image: PDF File]
<https://drive.google.com/file/d/1_KCen3EmFjf0XOt3HMfcHdLWViWm-fPE>
The ProgRock 2 in the TRC77.pdf
<https://drive.google.com/file/d/1_KCen3EmFjf0XOt3HMfcHdLWViWm-fPE>


On Tue, Jun 2, 2026 at 07:15 Michael St. Angelo via MRCA <
mrca at mailman.qth.net> wrote:

> I would recommend a Si5351 synthesizer board with Arduino controller.
>
> Here is an example that is overkill but you will get the idea. I did order
> Si5351 Synthesizers from Jason it the past
>
>
> https://www.9h5bm.com/product/avr-gated-gps-locked-frequency-counterstandard
>
> I don't code but if I find one I will send you a link.
>
> Mike N2MS
>
> > On 06/02/2026 7:28 AM EDT Rob Flory via MRCA <mrca at mailman.qth.net>
> wrote:
> >
> >
> > Zorro, nice repurposing of the medical tin.
> >
> > I may have to get my TRC-77 out in the field for field Day.
> >
> > Speaking of the TRC-77 in modern use, I wonder how hard it would be to
> make an Arduino controller to tune progrocks with external thumbwheels or
> even knob for kc and thumbwheel for Mc.
> >
> > I did manage to work a handful of stations with my TBX in the field some
> years back. I can't remember if I ran the transmitter on the EF generator
> or on the dynamotors. Probably the latter.
> >
> > RF
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/d42bbc29/attachment.html>

From mark.k3msb at gmail.com  Tue Jun  2 12:20:35 2026
From: mark.k3msb at gmail.com (Mark K3MSB)
Date: Tue, 2 Jun 2026 12:20:35 -0400
Subject: [MRCA] Reading Airshow
In-Reply-To: <CABdVoaCUoYZ9+meQk4X97QqXR0scpF+9AyF5S4mnBJkDcAOirw@mail.gmail.com>
References: <CABdVoaCUoYZ9+meQk4X97QqXR0scpF+9AyF5S4mnBJkDcAOirw@mail.gmail.com>
Message-ID: <CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>

Getting close!   My trailer is packed and the radios are also packed into
tubs awaiting loading tomorrow night.

The SCR-274N and BC-611 checked out fine, so I'm hoping things work out at
the show.

I was thinking of listening on 3885 Friday, Saturday, and Sunday at 10:00
AM Local.  I haven't been on 75 AM in years;  are there any nets etc I need
to be concerned about?

For other times, email me and I'll try to work with you.   Please give me a
few hours notice....   I will be checking email during the show... and
posting some pix as well.

I note the old amfone.net site is no longer up ("Error 500 - Internal
server error" -- which is what others have been reporting as well.).

73 Mark K3MSB
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/bec45c70/attachment.html>

From kd3ht at epix.net  Tue Jun  2 15:24:32 2026
From: kd3ht at epix.net (kd3ht at epix.net)
Date: Tue, 2 Jun 2026 19:24:32 +0000 (UTC)
Subject: [MRCA] [Milsurplus] Reading Airshow
In-Reply-To: <CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>
References: <CABdVoaCUoYZ9+meQk4X97QqXR0scpF+9AyF5S4mnBJkDcAOirw@mail.gmail.com>
	<CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>
Message-ID: <910125843.1620942.1780428272190@mail.yahoo.com>

80 has been fairly dead after 8:30 am.?
40 may be a better option. ?
if you do operate 75, focus on 3885. ?
we have the omrn at 5 to 7 am saturday morning. ?
I believe guys have been trying ssb at 10 around 7280 or so. ?sure they could copy ssb.?
If I think of it, will leave t-368 on and listen on 3885.?
Steve, kd3ht


Sent from Yahoo Mail for iPhone


On Tuesday, June 2, 2026, 12:23, Mark K3MSB via Milsurplus <milsurplus at mailman.qth.net> wrote:

Getting close!? ?My trailer is packed and the radios are also packed into tubs awaiting?loading tomorrow night.
The SCR-274N and BC-611 checked out fine, so I'm hoping things work out at the show.
I was thinking of listening on 3885 Friday, Saturday, and Sunday at 10:00 AM Local.? I haven't?been on 75 AM in years;? are there any nets etc I need to be concerned about?
For other times, email me and I'll try to work with you.? ?Please give me a few hours notice....? ?I will be checking email during the show... and posting some pix as well.
I note the old amfone.net site is no longer up ("Error 500 - Internal server error" -- which is what others have been reporting as well.).
73 Mark K3MSB______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/a5c43dc2/attachment.html>

From RAFANTINI at salisbury.edu  Tue Jun  2 15:56:36 2026
From: RAFANTINI at salisbury.edu (Ray Fantini)
Date: Tue, 2 Jun 2026 19:56:36 +0000
Subject: [MRCA] Reading Airshow
In-Reply-To: <CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>
References: <CABdVoaCUoYZ9+meQk4X97QqXR0scpF+9AyF5S4mnBJkDcAOirw@mail.gmail.com>
	<CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>
Message-ID: <DM8P220MB0472BFB9390F14AA8035959EB8122@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>

Just about everybody that was on AM Phone before it died out is over on QRZ.com they have two relevant forums, Boat Anchors & Classic Equipment and Amplitude Modulation - the AM Forum are where I hang out.
Good luck at the show.

Ray F/KA3EKH






________________________________
From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> on behalf of Mark K3MSB via MRCA <mrca at mailman.qth.net>
Sent: Tuesday, June 2, 2026 12:20 PM
To: ARC5 <arc5 at mailman.qth.net>; List Milsurplus <milsurplus at mailman.qth.net>; Military Radio Collectors Association (mrca at mailman.qth.net) <mrca at mailman.qth.net>
Subject: Re: [MRCA] Reading Airshow


Getting close!   My trailer is packed and the radios are also packed into tubs awaiting loading tomorrow night.

The SCR-274N and BC-611 checked out fine, so I'm hoping things work out at the show.

I was thinking of listening on 3885 Friday, Saturday, and Sunday at 10:00 AM Local.  I haven't been on 75 AM in years;  are there any nets etc I need to be concerned about?

For other times, email me and I'll try to work with you.   Please give me a few hours notice....   I will be checking email during the show... and posting some pix as well.

I note the old amfone.net<http://amfone.net/> site is no longer up ("Error 500 - Internal server error" -- which is what others have been reporting as well.).

73 Mark K3MSB
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/7f05914d/attachment-0001.html>

From rl.boltz at mhsdesign.com  Tue Jun  2 19:43:19 2026
From: rl.boltz at mhsdesign.com (rl.boltz at mhsdesign.com)
Date: Tue, 2 Jun 2026 19:43:19 -0400
Subject: [MRCA] CHU QRT
In-Reply-To: <211593323.134156.1780360791524@mail.yahoo.com>
References: <mailman.43.1780329618.2400.mrca@mailman.qth.net>	<CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>
	<211593323.134156.1780360791524@mail.yahoo.com>
Message-ID: <006b01dcf2e9$97c53da0$c74fb8e0$@mhsdesign.com>

Yes, first CFH and now CHU. Both useful for radio checks and propagation.  CFH was RTTY @45 baud mark low so a good place to check TTY equipment. 24 hour a day weather.  Shut down a few years now.  Going to miss CHU a bunch.

 

Ron Boltz

K3TZJ 

 

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf Of Mark Foltarz via MRCA
Sent: Monday, June 1, 2026 8:40 PM
To: mrca at mailman.qth.net
Subject: [MRCA] CHU QRT

 

So Long, CHU, And Thanks For All The Time Signals <https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/> 

 




	
		
 






	

So Long, CHU, And Thanks For All The Time Signals


In the long ago, pre-internet days when your clock project wasn?t an ESP32 getting its timing via NTP over WiFi,...

 

de WA4AM

Mark

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/3aff706a/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 51898 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/3aff706a/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.emz
Type: application/octet-stream
Size: 4095 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/3aff706a/attachment-0001.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image005.png
Type: image/png
Size: 9355 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260602/3aff706a/attachment-0003.png>

From ac2eu at yahoo.com  Tue Jun  2 21:01:02 2026
From: ac2eu at yahoo.com (ac2eu at yahoo.com)
Date: Wed, 3 Jun 2026 01:01:02 +0000 (UTC)
Subject: [MRCA] RT834 frequency standard.
References: <697145977.358984.1780448462545.ref@mail.yahoo.com>
Message-ID: <697145977.358984.1780448462545@mail.yahoo.com>

With the high fail rate of the frequency standard module, I was wondering if anyone has tried doing an upgrade.The original oven is a plug in assembly inside the module . I don't think it would be very? difficult to stuff the can with a?Oxco or better yet, a progrock module . Just add a regulator and LPF and done!
Anybody ?Jim, ac2eu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/8f5fa8d5/attachment.html>

From RAFANTINI at salisbury.edu  Wed Jun  3 09:15:58 2026
From: RAFANTINI at salisbury.edu (Ray Fantini)
Date: Wed, 3 Jun 2026 13:15:58 +0000
Subject: [MRCA] RT834 frequency standard.
In-Reply-To: <697145977.358984.1780448462545@mail.yahoo.com>
References: <697145977.358984.1780448462545.ref@mail.yahoo.com>
	<697145977.358984.1780448462545@mail.yahoo.com>
Message-ID: <DM8P220MB04729713EE85AC8D4BA7974AB8132@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>

Done that before. The trick with the reference oscillator is finding the "magic" spot in the tuning coil where the oscillator starts and runs every time. Often it may not be the spot that's absolutely on frequency and may be off by several cycles but at the end of the day that does not have that big an effect on frequency as opposed to a reference that sometimes won't start or stops.
My procedure is to find the best spot in its tuning for dependability and if that turns out to be too far off tolerance then replace the entire assembly.

Video of the procedure:

https://www.youtube.com/watch?v=gaTMWr4eZ2k&t=48s

Ray F/KA3EKH



________________________________
From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> on behalf of ac2eu--- via MRCA <mrca at mailman.qth.net>
Sent: Tuesday, June 2, 2026 9:01 PM
To: mrca at mailman.qth.net <mrca at mailman.qth.net>; army-radios at groups.io <army-radios at groups.io>
Subject: [MRCA] RT834 frequency standard.


With the high fail rate of the frequency standard module, I was wondering if anyone has tried doing an upgrade.
The original oven is a plug in assembly inside the module . I don't think it would be very  difficult to stuff the can with a
Oxco or better yet, a progrock module . Just add a regulator and LPF and done!

Anybody ?
Jim, ac2eu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/ffd87189/attachment.html>

From RAFANTINI at salisbury.edu  Wed Jun  3 09:44:15 2026
From: RAFANTINI at salisbury.edu (Ray Fantini)
Date: Wed, 3 Jun 2026 13:44:15 +0000
Subject: [MRCA] The demise of AM Phone Net and the Flying Dutchman
In-Reply-To: <0dc595e9-e8b8-4e6a-9e8d-ae2037da8774@gulftel.com>
References: <CABdVoaCUoYZ9+meQk4X97QqXR0scpF+9AyF5S4mnBJkDcAOirw@mail.gmail.com>
	<CABdVoaAurMpQw-JOjxVcWvqa6mXhsK_auqBneaFujJjsc3iJ9w@mail.gmail.com>
	<DM8P220MB0472BFB9390F14AA8035959EB8122@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>
	<0dc595e9-e8b8-4e6a-9e8d-ae2037da8774@gulftel.com>
Message-ID: <DM8P220MB04721750EEB0D37BA684563CB8132@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>

You have to create an account and log in to see everything on QRZ Net. What you see without an account is only a fraction of what is there. All of the old timers and the like have relocated over there now. Don't know what happened with the old AM Phone Net but like you say it was something like the flying dutchman for a while surfacing every now and then but then disappearing again. The weird thing is that the people moderating that forum appeared to have no idea what was happening or how to resolve it? On QRZ on AM Phone there is a thread about it and its weird demise. Some say it was outdated software; others say denial of service attacks and my favorite that the problems were related to propagation.
I tend to look at it in terms of something like Eliot says, "This is the way the world ends. Not with a bang but a whimper." and that's how that site died.

Ray F/KA3EKH






________________________________
From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> on behalf of Radio Room via Milsurplus <milsurplus at mailman.qth.net>
Sent: Tuesday, June 2, 2026 6:38 PM
To: milsurplus at mailman.qth.net <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] [MRCA] Reading Airshow




OK .... I don't use QRZ but I thought when you went
to the forum page it would list those 2 forums you
mentioned. Do you have to be a member to get that info ?
I never could find a specific index list nor a search
function to a list. Maybe it's not a forum like milsurplus.
Anyway thought it would be cool to see who all was still
around from the old AM Phone. I use to enjoy the discussions
there back in the day. They say it comes back up after
midnight on those cold moonless misty nights but then goes
to a server 500 error as the sun comes up.

Hmmmmm ....

Skip WB4GMQ

=================================================================

On 6/2/26 14:56, Ray Fantini via Milsurplus wrote:
> Just about everybody that was on AM Phone before it died out is over on
> QRZ.com they have two relevant forums, Boat Anchors & Classic Equipment
> and Amplitude Modulation - the AM Forum are where I hang out.
> Good luck at the show.
>
> Ray F/KA3EKH
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/8a017f6f/attachment-0001.html>

From smithab11 at comcast.net  Wed Jun  3 10:33:32 2026
From: smithab11 at comcast.net (B. Smith)
Date: Wed, 3 Jun 2026 10:33:32 -0400
Subject: [MRCA] CHU QRT
In-Reply-To: <211593323.134156.1780360791524@mail.yahoo.com>
References: <mailman.43.1780329618.2400.mrca@mailman.qth.net>
	<CAOcFux=d_P4axDTgvnFnitKzLMeMEHCXatDijZCvdf_3hRbdOQ@mail.gmail.com>
	<211593323.134156.1780360791524@mail.yahoo.com>
Message-ID: <c00d9bc5-49a0-49fe-98f4-34d17c3ffba5@comcast.net>

My favorite was JJY on 2.5 and 5.0 when flying on the other side of the? 
IDL.
Z
> So Long, CHU, And Thanks For All The Time Signals 
> <https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/>
>
>
> 	
>
>
> 	
>
>
>     So Long, CHU, And Thanks For All The Time Signals
>
> In the long ago, pre-internet days when your clock project wasn?t an 
> ESP32 getting its timing via NTP over WiFi,...
>
> <https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/>
>
> de WA4AM
> Mark
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html


From ac2eu at yahoo.com  Wed Jun  3 15:06:38 2026
From: ac2eu at yahoo.com (ac2eu at yahoo.com)
Date: Wed, 3 Jun 2026 19:06:38 +0000 (UTC)
Subject: [MRCA] [Army-Radios] RT834 frequency standard.
In-Reply-To: <4ab01cad-dc7a-7aa2-e013-6a94f8254c94@prc68.com>
References: <697145977.358984.1780448462545.ref@mail.yahoo.com>
	<697145977.358984.1780448462545@mail.yahoo.com>
	<4ab01cad-dc7a-7aa2-e013-6a94f8254c94@prc68.com>
Message-ID: <1900859072.551619.1780513598920@mail.yahoo.com>

 True, but the output of the original 5 mhz oscillator was only about 600 to 800 mvpp. The output of even the 3.3V device should be more than adequate, in fact would need some attenuation.I did have it working with a 5 mhz injection from a DDS signal generator. ( with original oven removed)The progrock would be as good or better in the stability and accuracy dept.?I thought it would be a good "science experiment" and was curious if anyone had given it a try.

Just for kicks, I monitored the 5 Mhz frequency from startup .I could see the change as the oven warmed up. it took a while to stabilize, too. The progrock wouldn't be nearly as drifty..
In time there will be very few good modules to keep these radios going, so I'm thinking out loud here about possible alternatives.
    On Wednesday, June 3, 2026 at 02:44:06 PM EDT, Brooke Clarke <brooke at prc68.com> wrote:  
 
  Hi Jim:
 
 It may be that the stability/noise of the oscillator matters and if so then use of a programmable unit would not be a good choice. For really critical applications the oscillator drive level is important.
 
 -------- Original Message --------
  
 
 With the high fail rate of the frequency standard module, I was wondering if anyone has tried doing an upgrade. The original oven is a plug in assembly inside the module . I don't think it would be very? difficult to stuff the can with a? Oxco or better yet, a progrock module . Just add a regulator and LPF and done! 
  Anybody ? Jim, ac2eu  
 -- 
Have Fun,

Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.
 _._,_._,_Groups.io Links:
 You receive all messages sent to this group. 

View/Reply Online (#74188) | Reply to Group | Reply to Sender | Mute This Topic| New Topic
Your Subscription |Contact Group Owner |Unsubscribe [ac2eu at yahoo.com]

_._,_._,_  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/142a4e0a/attachment.html>

From RAFANTINI at salisbury.edu  Wed Jun  3 16:18:57 2026
From: RAFANTINI at salisbury.edu (Ray Fantini)
Date: Wed, 3 Jun 2026 20:18:57 +0000
Subject: [MRCA] Latest you Tube video - The AN/PRC-70
Message-ID: <DM8P220MB04726F453388B5FDED64865AB8132@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>

Just put up a video of the AN/PRC-70 and a couple of things about the care and feeding of that radio. With its thrill packed conclusion of that radio on the MMRCG RTTY Net on Saturday morning!
Hard to Imagin but have a backlog of projects to get edited and out there including video from Hagerstown and a long-awaited video on how to build the adapter that I use for running teletype and other digital modes on older radios. Will try to get that out next! You can see the adapter in use on this video.

https://youtu.be/bhBH0EKlKJ8

Ray F/KA3EKH



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/80ee491b/attachment-0001.html>

From mkdorney at aol.com  Wed Jun  3 16:45:36 2026
From: mkdorney at aol.com (MARK DORNEY)
Date: Wed, 3 Jun 2026 16:45:36 -0400
Subject: [MRCA] Reading Airshow and MVPA Convention
References: <87B9C951-B8E9-43B0-AC4A-01F2178AC3D5.ref@aol.com>
Message-ID: <87B9C951-B8E9-43B0-AC4A-01F2178AC3D5@aol.com>

Anybody going to the Reading Airshow this weekend, and the MVPA Contention in Fishers Ville PA JUNE 19-21?

Mark D. 

?In matters of style, float with the current. In matters of Principle, stand like a rock. ?.   -   Thomas Jefferson 

Sent from my iPhone

On Jun 3, 2026, at 4:21 PM, Ray Fantini via MRCA <mrca at mailman.qth.net> wrote:

?
Just put up a video of the AN/PRC-70 and a couple of things about the care and feeding of that radio. With its thrill packed conclusion of that radio on the MMRCG RTTY Net on Saturday morning!
Hard to Imagin but have a backlog of projects to get edited and out there including video from Hagerstown and a long-awaited video on how to build the adapter that I use for running teletype and other digital modes on older radios. Will try to get that out next! You can see the adapter in use on this video.

https://youtu.be/bhBH0EKlKJ8

Ray F/KA3EKH



______________________________________________________________
MRCA mailing list
Home: http://mailman.qth.net/mailman/listinfo/mrca
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:MRCA at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/9d55f456/attachment.html>

From kd2giy at gmail.com  Wed Jun  3 17:35:42 2026
From: kd2giy at gmail.com (KD2GIY)
Date: Wed, 3 Jun 2026 17:35:42 -0400
Subject: [MRCA] Latest you Tube video - The AN/PRC-70
In-Reply-To: <DM8P220MB04726F453388B5FDED64865AB8132@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>
References: <DM8P220MB04726F453388B5FDED64865AB8132@DM8P220MB0472.NAMP220.PROD.OUTLOOK.COM>
Message-ID: <CAJ_9Pqc4dN5oqnZ9G_-x-+p3Zki2uorSrAyFJLpTQzC=NWZw5g@mail.gmail.com>

Ray,
Great video, I can't wait to get the radio home.
The manual for the radio was a little confusing on the tuning process,
But the visual that you gave, cleared that up for me. thank you.

This is probably one of the first and only detailed videos on YouTube about
the PRC/70 believe it or not.

Keep the videos coming! I'm definitely learning a lot.


Best regards
Dave
KD2GIY

On Wed, Jun 3, 2026, 4:20 PM Ray Fantini via MRCA <mrca at mailman.qth.net>
wrote:

> Just put up a video of the AN/PRC-70 and a couple of things about the care
> and feeding of that radio. With its thrill packed conclusion of that radio
> on the MMRCG RTTY Net on Saturday morning!
> Hard to Imagin but have a backlog of projects to get edited and out there
> including video from Hagerstown and a long-awaited video on how to build
> the adapter that I use for running teletype and other digital modes on
> older radios. Will try to get that out next! You can see the adapter in use
> on this video.
>
> https://youtu.be/bhBH0EKlKJ8
>
> Ray F/KA3EKH
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/bd588383/attachment.html>

From mkdorney at aol.com  Wed Jun  3 22:06:19 2026
From: mkdorney at aol.com (MARK DORNEY)
Date: Wed, 3 Jun 2026 22:06:19 -0400
Subject: [MRCA] Reading Airshow and MVPA Convention
In-Reply-To: <CABdVoaCxJAbv=k2ggg8vzwOHUxUPtrSgh-4FV0O4zcBcMXrY6w@mail.gmail.com>
References: <CABdVoaCxJAbv=k2ggg8vzwOHUxUPtrSgh-4FV0O4zcBcMXrY6w@mail.gmail.com>
Message-ID: <05FDF069-5EF8-4566-9A6C-10AC2650B710@aol.com>

An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260603/0cb4048f/attachment-0001.html>

From mark.k3msb at gmail.com  Fri Jun  5 20:22:59 2026
From: mark.k3msb at gmail.com (Mark K3MSB)
Date: Fri, 5 Jun 2026 20:22:59 -0400
Subject: [MRCA] Reading Airshow Saturday
Message-ID: <CABdVoaDUBG9jquH=90dA5XP6pxUDWWQR3yLcFOcgtd7piTQu6Q@mail.gmail.com>

I will be on 3885 +/- at 10AM (1400 GMT) with my SCR-274N.

73 Mark K3MSB
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20260605/d10d5638/attachment.html>

