[MRCA] SAQ July 2

B. Smith smithab11 at comcast.net
Fri Jun 30 15:21:41 EDT 2023


Hi Chris
We will add you to the SAQ reception Honor Roll.Thanks for all the great 
info on your operation. I am considering using my RCA AR 8510 it is easy 
to lift and power by battery.
Does the smoke interfere with low frequency radio waves?
Z

On 6/29/2023 1:39 PM, Christopher Bowne wrote:
> As noted on the link to the SAQ operations on 2 July, the second 
> transmission will commence as per my previous reply
> on this thread, at 0730 EDT here on the East Coast.
>
> Perhaps there is a chance of working SK6SAQ on 20 meters around the 
> time if the 2nd transmission at 0730 EDT.  I’ve heard them during 
> previous SAQ activities on 80 and 40 meters but never made it through 
> the pile of EU stations calling on those bands.  20 might be open to 
> EU at 0730 EDT.
>
> 73 de Chris AJ1G
> Stonington CT.
>
> Sent from my iPhone
>
>> On Jun 29, 2023, at 10:00, Christopher Bowne <aj1g at sbcglobal.net> wrote:
>>
>>  I’m in!  BTW there will be two transmissions on the 2nd.  COMEX for 
>> the first is at 0430 EDT and (I believe) the second one COMEX is at 
>> 0730 EDT.
>>
>> I haven’t been active much on the MRCA list in the last few years 
>> until recently, but I have fairly consistently been copying the SAQ 
>> transmission very solidly over the last 5 years or so up here from 
>> shoreside locations like Stonington Point and Barn Island here in 
>> Stonington, CT and from Weekapaug Point, Watch Hill Point, and 
>> Quonnie Salt Pond, RI using a Wandel and Goltermann AT-611 Selective 
>> Level Meter, powered from a small 100 watt 12VDC to 120V AC inverter 
>> and a (stand alone from  vehicle) 12V Group 24 battery.  To keep 
>> things Swedish, usually operate from our Volvo XC60.  Have 
>> successfully copied SAQ with just a 75 meter Hamstick, but best 
>> results are with a 200 foot mini terminated Beverage or the same wire 
>> just deployed as a “trailing wire” lying on the ground.  The trailing 
>> wire arrangement is fairly directive, with significantly higher 
>> signal levels when the receiver is at the head of the wire axis lined 
>> up on the bearing to SAQ.  Even though the system including the 
>> battery is standalone from the vehicle electrical system, I have to 
>> ground the receiver chassis to the vehicle body to minimize EMI from 
>> the inverter. The vehicle is completely shut down during reception to 
>> minimize/eliminate EMI from the vehicle electrical/electronic systems.
>>
>> A VERY EMI quiet background noise location is necessary to copy SAQ. 
>>  Received levels indicated on the SLM are typically -90 to -100 dBm, 
>> with typically about 10-20 dB SNR.  Usually, and especially this time 
>> of year, thunderstorm static is the limiting factor on successful 
>> reception.  Time of day is usually not a factor, I’ve copied some
>> SAQ transmissions that have occurred in late
>> morning local time here on the East Coast. Both the upcoming 0430 and 
>> 0730 EDT transmissions should be copyable here, QRN
>> permitting.
>>
>> I usually watch their YouTube livestream on my iPhone during the 
>> transmitter startup to know exactly when the RF is being put onto the 
>> antenna, usually can hear it right away if conditions are good.
>>
>> I’m challenging myself this time to also copy them on a Navy RAK WW2 
>> vintage VLF receiver along with the W&G.  The biggest challenge will 
>> be getting that beast out of the
>> shack and into the Volvo! Despite its weight, it doesn’t draw much 
>> power, might be able to power it from the 100 watt inverter or 
>> definitely a 700 watt one I have.
>>
>> Game on!
>>
>> Chris AJ1G
>> Stonington CT
>>
>>
>> Sent from my iPhone
>>
>>> On Jun 28, 2023, at 22:19, B. Smith <smithab11 at comcast.net> wrote:
>>>
>>>  I know everyone is tuckered out from Field Day but here is a Low 
>>> Frequency challenge.
>>> SAQ is scheduled to make a transmission on 2 July (dark thirty 
>>> Early). Info can be found at the link below.  As far as I know the 
>>> only members of our group who have successful received the 
>>> transmission on 17.2 kcs are N3FRQ, K4CHE, and W2AMI.
>>> Z
>>> semk4che.gif
>>>
>>>
>>> https://alexander.n.se/en/alexanderson-day-2023/ 
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