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Author Topic: Military Group AM net  (Read 4547 times)
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K4NYW
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« on: October 27, 2018, 08:56:20 AM »

Forwarded -
The Midwest Military Radio Collectors Group was formed a year ago to
encourage the restoration and use of military radio equipment, building
on the success of similar groups on the East and West coasts.   Since
the military used both AM and USB for voice modes, both modes have
always been welcome on our 40 meter net which meets at 9AM Central time
on 7296 kHz.

But, starting Nov. 3, the first Saturday of each month will be conducted
in the AM mode, similar to the First Wednesday Collins Collectors
Association AM net.  All stations are encouraged to check in using AM,
regardless of the type of radio used.    In recognizing the role AM had
as the original operating mode for voice communication by the military,
we hope that a dedicated monthly AM net will encourage more hams to put
more ART-13s, TCS sets, ARC-5s, Angry 9s, and other "veteran radios" on
the air.

And if you happen to hear our USB net on the other weeks of the month,
please feel free to join us, as AM or USB are always welcome.  It would
be great to have AM check-ins, especially using military radios, every
week.   The net runs less than an hour and the indulgence of AM
operators for this time period is appreciated.

To repeat, the "First Saturday MMRCG AM Net" will be held on 7296 kHz at
9AM (14:00Z) starting on Nov. 3rd, 2018, and repeating on the first
Saturday of every month.

Thanks and 73,

Bob W9RAN
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KA3EKH
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« Reply #1 on: November 05, 2018, 11:29:23 AM »

After Action Report of the event from W9RAN:

On Sat, Nov 3, 2018 at 12:18 PM Bob W9RAN <w9ran@oneradio.net> wrote:
Thanks to all who participated!   And apologies to those who weren't
able to copy or who got bypassed as a result of my somewhat chaotic
check in process.   I wanted to get back to as many stations operating
on AM as possible while the band conditions were favorable which was at
least mostly successful, so thanks for your perseverance.

Net Control station was W9RAN running a T-368 E (s/n 238) made by Bendix
on a 1959 contract and overhauled at the Pirmasens Army Depot in
Germany.  Since coming into amateur hands it has had modifications to
widen the response of the speech amplifier and shunt-feed the PA to
provide wider response.   Since we operate 4kHz in from the band-edge, I
intentionally limited my audio bandwidth to 3kHz and monitored with an
attenuated SDR to make sure my upper sideband was not extending above
7300 kHz. Receivers were an HRO-60 for AM and an Icom R-70 for USB,
antenna was the HyTower Vertical, with 375 watts DC carrier output.   I
will make  sure to set my frequency more accurately in the future, part
of the learning curve, as the counter I was using apparently is somewhat
off.

Stations participating:

W9WT  John, Malabar FL  (could not copy my AM signal)   TMC transmitter
and receiver
KC9INK   Wally, Indianapolis  GRC-106
WB4WCJ  Paul,  Hardeeville SC   IC765/Amp
KM4V   Steve,  operating portable from Stone Mountain Hamfest in
Lawrenceville GA,   Thomson TRC-340
AB5GG  Clark, Fayettville AR  Yaesu FT-301 and TL-922 amplifier, Hustler
vertical
KG0SI   Gary, Lakewood CO   PRC-47 modified for AME using LSB, also
copied on USB
KA8TUR  Jim,  Milford MI    Harris RF-5020+amplifier and also on
GRC-106,  dipole.
K4HV    Walter,   Malabar FL   - Sorry Walter and I lost each other
before I was able to get back to him.  Good signal on initial AM check-in.
W1NZR  Brown,  Jamestown RI    Federal AN/SRT-14 US Navy transmitter   
(Wow!)
KA3EKH  Ray,   Eden MD   ARC-38
WD8INC  John, Lebanon OH   VRC-176 (PRC-174 w/ 100w amp / vehicular
adapter) OCF dipole
KA3BVJ    Dennis,  Herndon PA (sorry I was not able to copy well)
Hallicrafters HT-40 TX and SX-111 RX
WD8AXA  Charlie,   Portage MI    Thanks for the help with relays, but I
think I neglected to get your equipment!
WA4VAG/4   Joe, operating portable from hamfest in Georgetown OH IRET 
"Iraqi-Talkie" portable with 9' whip
KC8ZUL   Jerry, Columbus OH   Collins 20V3

A good start even though we were challenged today to work through the
more distant check-ins before losing propagation.   As we switch back to
standard time and as propagation shifts into winter mode we'll just have
to see how the net is affected.     Clearly there is interest in AM and
it's good so see such a diverse collection of equipment on the air!   
Winter is approaching, time to get those military AM rigs on the bench
and on the air.

We'll look for everyone next week back on USB.

73, Bob W9RAN

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