[MRCA] [MMRCG] [MRCG-West] Saturdays East-West Mil Commo Test

Thu Sep 21 19:02:14 EDT 2023

Hi Chris - I agree, I think you are calling it right.  Pretty narrow
propagation windows over this path with the expected equipment...
The CW RBN is a very powerful propagation test tool, I use it frequently.
No "predictions", it's actual reception reports of real signals (Not FT-8.
Ahem...).
I'll probe it tomorrow and see.  Looks like Gilbert will be having
"training" WX.
If it's raining, it's training, if it's sun, it's fun!

Tim
N6CC

On Thu, Sep 21, 2023 at 12:52 PM Christopher Bowne <aj1g at sbcglobal.net>
wrote:

> I can’t be at Gilbert this year but will listen for the East-West comms
> exercise.  Based on recent daytime operations both from home and mobile
> here, 1000 Eastern will be at best marginal at more than 3 hours past local
> sunrise to the west coast. It would be excellent at local East Coast
> sunrise on 40, but very early on the West Coast
> for the operators.  20 and 18 might work, would think 20 would be better.
> 20 lately has been staying open virtually worldwide from New England in the
> early morning hours here around 2 AM at later and stays open to the west
> for a long while.  Suggest you do some soundings by calling CQs on CW on
> the bands at various times tomorrow to see how you light up the Reverse
> Beacon Network nodes, there are many on both the East and West Coasts on 40
> 20 and 18 MHz.
>
> Chris AJ1G Stonington CT.
>
>
> Sent from my iPhone
>
> On Sep 21, 2023, at 15:20, Tim <timsamm at gmail.com> wrote:
>
> 
> Hi Ray - I agree that prop looks pretty poor for this E-W path.  I ran the
> predictions again using today's solar data and it looks even worse for the
> power/antennas we have. (Higher power, CW, more gain etc. helps
> considerably..)   https://www.voacap.com/hf/
>
> I will be up on Saturday morning, 18145 kc USB at 1700Z to give it a try.
> Not likely that 7296 kc would work out here with these parameters and
> "fall" conditions.  But there are always "surprises"....
>
> We can always try again, anytime, but I agree, playing with these radios
> in field setups makes the challenge fun at several levels.
>
> Have fun at Gilbert with your local ops.  You guys always get an
> enthusiastic turnout.
>
> 73, Tim
> N6CC
>
> On Thu, Sep 21, 2023 at 10:59 AM Ray Fantini <RAFANTINI at salisbury.edu>
> wrote:
>
>> Looking at your path predictions seventeen don't look too good, but forty
>> may be a possibility so we will be up on 7296 at 1000 local and depending
>> on how bad the weather is on our end ,may not want to stick around too long
>> on my end. Will try 18.145 at 1300 local and see what happens but we also
>> have AA83 coming up in October and that may be another opportunity and that
>> will be from Fort Miles in Delaware right on the coast.
>>
>> Ray F/KA3EKH
>>
>> ------------------------------
>> *From:* W6MQI <W6MQI at protonmail.com>
>> *Sent:* Tuesday, September 19, 2023 5:03 PM
>> *To:* MRCG-West at groups.io <MRCG-West at groups.io>; Ray Fantini <
>> RAFANTINI at salisbury.edu>
>> *Cc:* MMRCG at groups.io <MMRCG at groups.io>; mrca at mailman.qth.net <
>> mrca at mailman.qth.net>
>> *Subject:* Re: [MRCG-West] Saturdays East-West Mil Commo Test
>>
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>> Doesn't look too promising if I'm reading it right.
>>
>> Dave, W6MQI
>>
>>
>> Sent from Proton Mail mobile
>>
>>
>>
>> -------- Original Message --------
>> On Sep 19, 2023, 12:46 PM, Tim N6CC < timsamm at gmail.com> wrote:
>>
>>
>> Hi Ray - I'm planning for the Gilbert - West Coast military radio check
>> upcoming for this weekend, Saturday 23 Sept.
>> I will be operating a PRC-174 from a field location out this way.  So I
>> ran the VOA propagation prediction for the CA-MD path at 1800Z (11AM PDT,
>> 1400 EDT).  Freq= 18.145 mc.
>> Variables I entered are SSB, quarter wave verticals at each end, 50 watts
>> (split between 100 W GRC-106 and 20 W PRC-174).  Prediction uses current
>> solar activity.. I find these predictions to be fairly accurate for my
>> purposes...
>> It does not look good for propagation success: prediction (18 mc brown
>> curve) is less than 5% for an acceptable SNR with those parameters.  See
>> chart.  Other bands not usefully better..
>> But I guess we try anyway., maybe some mid-west / west coast Mil rock
>> crushers may try also...But otherwise a good excuse to get out in the
>> field..
>> FYI, Tim
>> N6CC
>>
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