Contest Preparations

Posted By: W3DIO

Another contest looming near.  This past weekend we did a few things to prepare for the upcoming contest.  We went through all our transverters(222,903,2304,3456) and documented the current calibration on them.  Then we opened up the 3456 transverter on the table as it was the one furtherest off frequency and adjusted it to bring it closer into calibration.  We accomplished this by taking advantage of a harmonic of 432 Mhz.  The 8th harmonic of 432 is 3456 thus if you generate a signal on 432.0125 you should be able to hear it on 3456.1.   The transverter actually found this signal at 3456.085.20.  We adjusted it and brought it closer to 3456.1.  Unfortunately with temperature changes and such the frequency varies pretty much especially the first few minutes of the transverter being turned on.  The end result is we shouldn’t have to search far from signals on 3456 unlike previous contests.

We also did our monthly engine and generator test.  Both started although the battery was a little low so we will probably want to make sure that is charged up fully before the contest.  Fortunately in the RV we can always start the RV on the house batteries if we need to.

Next weekend we will be taking the RV to fill up the propane tank and we will be inspecting the mast to ensure all the parts are still in good working order.  We also need to reinstall the 3456 transverter back in the equipment closet.

BTW, whoever came up with the idea of using RCA plugs for 12 volt power adapters should be taken out back and shot.  Ended up blowing a fuse while disconnecting the transverter due to shorting the connector out.  A pain in the arse to be sure.  I’m very tempted to modify the DEMI transverter to replace it with a powerpole pigtail.

Unfortunately we still haven’t had time to integrate the 240watt 903 amp, nor either of the 3456 toshiba amps we bought.  We also have a brand new 2304 DEMI transverter and 60 watt amp board to integrate to replace the SSB electronics transverter and amp board we have presently.  We have just been tied up.  Hopefully we will get some of these projects worked on before the September contest.

6 meter Sprint

Posted By: W3DIO

We ended up only participating in the 6 meter sprint out of all the spring sprints!!!  Now it probably has been over 6 months since I’ve been on the air so I really enjoyed getting back on the air in the RV.  I think we ended up with 10 grids and 18 contacts as conditions were flat but we still had a good time….

Repairs Repairs Repairs

Posted By: W3DIO

Well over the winter we ended up coming down with a problem with the starter battery.   We removed it, took it into the garage and added some distilled water and charged it up and it now appears to be holding a charge.  I guess from sitting so much during the freezing temperatures that the water in the battery just froze.  We also had a problem where the generator wouldn’t start for its monthly test in December.  After servicing the starter battery and getting the engine running again, the generator started right up so I guess we can only assume water vapor got in the gas line and froze.

My Dad, Jim (K3LFO), drove the RV this past week up to the Emissions test center.  They require emissions test every two years yet everytime we go up there they tell us they will not test our vehicle, give us a waiver and send us on our way.  For some reason they wont just give us a permanent waiver so we dont have to waste the gas to drive the RV up there in the first place. *SHRUG*.. Anyhow so our emissions are good for another two years hi hi.

We still have some maintenance to do on the mast assembly and some improvements to integrate before the June contest.  Hopefully we will make some progress lol  Ham radio for me has taken a back seat since I’ve had some major life changes recently in my life.  Hopefully things will calm down soon so I can spend some time on both lol

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Old Rovers never die, they just change grid squares!

73, Jim Erickson - K3LFO (FM19ml) jim@k3lfo.org
Dave Erickson - W3DIO (FN10gb) dave@w3dio.org

 

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