[MRCA] Todays M&S Net AAR

[Peter Gottlieb]

Do you use the vehicle battery or a separate one?


On 3/25/2017 4:43 PM, Ray Fantini wrote:
>
> The goal was to take the M151A1 out of the garage, set up everything and 
> participates in the M&S Net at noon along with attempting other QSO on 
> different bands, also want to have everything ready for the Aberdeen event in 
> May.
>
> Resources:
>
> Used the M151 just recently put back together after removing the engine and 
> transmission to install all new seals and stop the never ending oil leaks.
>
> The AN/GRC-106 HF Transceiver, VRC-12 FM transceiver with vehicle mounted 
> antennas were used in addition used the twenty four foot push up mast with an 
> inverted V antenna cut for 5357 The on board antenna would be used for all 
> other bands.
>
> Operation:
>
> Got everything set up just before noon. M&S Net went with out issue. No 
> problems hearing or being heard by any participating stations. Did 
> announcement about QSY to 18.125 after net and did. Did hear traffic at 18.14 
> and 18.132 or so, did try calling CQ couple times on 18.125 but discovered 
> that after a short period of time I was not transmitting. I discovered that 
> when supply voltage drops too low the transmitter will not work properly.
>
> Things learned:
>
> Wanted to see how long I was able to operate without running engine. Did run 
> the engine for fifteen minutes prior to beginning of M&S Net but not after 
> that. By the time I started trying to work on seventeen meters battery voltage 
> indicator was in yellow and now know that voltage indicator needs to be in 
> green for proper transmission. The receiver works fine but the transmitter 
> will not tune in low voltage condition. Next time need to run the engine more 
> often or add external generator to mutt. Had the VRC-12 in operation entire 
> time and was occasionally keying to see what effect that had on battery life. 
> Where GRC-106 wont tune but still receive the VRC-12 still worked but at 
> reduced power.
>
> May look into MEP-015 28 Volt Generator being I know where I can locate one 
> that I can swap for my MEP-015 AC generatorand run all the DC stuff on the 
> mutt from that located away from the mutt.
>
> Also noticed that there is lots of activity up on seventeen meters, perhaps a 
> additional cut V can be prepared for that band. Also need to investigate 
> getting RT-834 to replace my RT-662 being looks like if going to do anything 
> on seventeen you need the pack R/T channel that’s at 18.157.5
>
>
> Ray F/KA3EKH
>
>
>
>
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