Category Archives: K9ZW Learned

K9ZW LoTW Updates

Over the years I have been an on-again/off-again LoTW participant. Really my uploading logs is more about helping others than any sort of personal effort.

I’ve never gone through the process of adding in what paper DX QSLs and logs could be added to my LoTW totals. Hard to get interested enough to dedicate the hours to sort this out.

My paper QSLing is way behind, and I am currently in the midst of having my cards redesigned with the updates to my current QTH.

I am intrigued with nearly 50% of my QSOs uploaded to LoTW having been confirmed.  Guess that show the system does work.

73

Steve
K9ZW

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All but for a switch – tower control at the K9ZW Skyneedle

Yesterday with some great help from my electrician the Skyneedle crank-up control was sorted out.  The following picture is what you do NOT want to see, as the switch had not been properly triggered and ended up past the metal “trigger piece” on the Skyneedle.  I had developed this problem first time I ran the tower upwards, and it was definitely a two-person job to troubleshoot.

 

The roller micro-switch after it went past the “trigger”

The circuitry on this tower is a very neat upgrade built long ago. I tried tracking down the ham who oral legend said built it, but he is either an SK or in a home. The pencil drawing circuit schematic is pretty weak, and lacks labeling or any description of operation.

Turns out a at the tower control parallels the remote, and that both the on-tower and remote have neutral-positions that are not labeled nor shown on the schematic.

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Trying to do Antenna Work before it’s the right time! (Mud-Runner for better Reception)

This falls into what you shouldn’t do.

Today I did a lot of pre-work on getting antenna locations ready at the new home QTH.

But in the process I stuck some of my equipment.

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More Windows Adversity

Here are two pair of pictures demonstrating the attenuation the switch in Windows caused:

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Computer and Audio Racks for Amateur Radio

As I start moving my main station from the QTH we are selling to our new QTH 12 miles west, I’ve wanted to put my Flex-6700 Station into a rack.

I’ve not found an all-in-one information resource on how to do a cost effective rack design.

So I’m going to hammer the keys with the tidbits I have picked up and hopefully these notes will be helpful for someone else.

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Storing Spare Radio Gear – Preparing for Long Term Storage

Almost every one of us has some spare radio gear. Sometimes it is gear we would like to set aside and store for a “rainy day” or hoping that our youngsters might want it. Of course there is also gear set aside purely as back-up if our main gear took a lightning strike or was otherwise damaged.

I asked several preparedness types, a couple ex-military gear service techs, and looked around for other’s recommendations – all distilled into a protocol.

Step One – Selection and Completeness

Gear to be stored usually is working gear, though I do know people who set aside projects for the future. There are a couple points about selection that were pointed out to me:

Will it work in the future? No point in storing gear that requires a computer that is likely to be obsolete unless you store a working computer with it. Nor is there much sense to store a project without the needed spares if they are likely to be unavailable in the future.

Then pay attention to completeness – you want the gear, all accessories, critical spares, paper manuals, service/tech manuals if you can get them, consumables and printouts of support notes from the internet if they are useful. You want it all much like if you were shipping the radio to a remote Island where you would be setting it up without any outside resupply. Pay attention to special connectors – Molex variations come to mind – and any add-ons that can be found now.

The object is to have everything you need to get the radio up and going, AND take care of it, when you open your storage parcel years later.  Obviously be prudent – example,  I wouldn’t store oils/lubricants with the radio.

Don’t forget to really make sure what you store works well, and is up to snuff.  One ham I ran into sends radios in for full service and alignment before storage.  Really nice to get some of his gear when he decided he didn’t need everything he had stored.

The Dry-Wrap

Treat the radio like you were wrapping fresh room temperature meat. Bring the gear up/down to room conditions, clean and dry. Then wrap it twice in food grade paper. Butcher Paper and Parchment paper (used for baking) have been suggested. The idea is a pH neutral paper unlikely to take-up or give-off chemicals which could damage your stored radio.

The Piggy-Back

To the wrapped radio add the manuals, accessories and spares if being stored as one. Some units will be stored in partial units – which even at this stage would then be marked 1-of-4, 2-of-4 and so on.

The add-ons can be in their own paper or bags.

To these add several large desiccant sachets, which you should prepare by oven-drying them to a very dry state.

The First Vacuum Pack

Using Food Grade plastic, heat seal and vacuum pack everything. You do NOT need to crank the vacuum up high, just bring it down. Some preparers suggested pre-filling the plastic bag with nitrogen or CO2 from some dry ice.

Once you have some vacuum the heat seal the bags completely closed.  They shold not puff back out.

The Anti-Static Nod to Mr Faraday

Double wrap the vacuum pack with commercial grade aluminum foil (this is much heavier) or electronics industry anti-static conductive materials. Use conductive tapes if possible.

The Final Vacuum Packaging

The foil-wrapped unit is put into another Food Grade Plastic Bag and like the bag under the foil vacuum heat-sealed everything again.

The Importance of Labels and Instructions

Make sure to label the unit, and if you have any short instructions for storage or opening attach them.  I’ve put labels so they can be seen through the Final Vacuum Packaging as well as an outside label – hedging again the plastic wrap fogging over time.

The Box or Can Over-Packaging Question

At this stage advisors were split – several suggested boxed up the package in a storage box, and few wanted to store it in a metal garbage can out of EMP fears. There is no civilian authority to reference on whether EMP threats are real enough to protect against, and whether the double foil-wrap is enough protection without a metal casing.

Regardless of your personal decision, make sure you box/store the package in way that you won’t drop it when handling. No point in doing an awesome storage job to fumble the radio putting it on the shelf – or even having it walk off the shelf in tremors.

If you do some planning you can use the original OEM packaging, even if you have to include it inside one of the Vacuum Packing layers.

Duplicate, if Required

The saying is “Two is One, and One is None.”  This reflects the idea that you have a high likelihood of havinga working station if you have spares to swap in, but if your only unit goes down you are off the air.  The same applies to spares.  Consider if you want duplication of stored radio gear.

All this is a lot of work, but I am told that those with experience have found it worth the effort. The protected radio gear has a high likelihood of being servicable after lengthy storage.

73

Steve
K9ZW

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