2013/06/03 — Monday

This Monday was mostly a day of preparation.  The engineers have been finding it impossible to use one of the transmitters on the higher frequencies.  As a result, rearranging the use of the transmitters for each new schedule, which occurs every few months, is more of a challenge.   The schedule must be shuffled in such a way that this one is used only on the middle and lower frequency bands.  Thinking the issue could well be that the THF filter may have migrated from its factory settings, I spent a few hours researching the archives to locate the factory setup information.  This information was then consolidated into a chart to more easily readjustment this transmitter and the other two to their factory settings.

Salema installed a capacitor, that I sent from Elkhart back in February, that finally made it to Swaziland last week.  This required disassembly of some of the driver stage of Transmitter 2.  After Salema got everything back together, I showed him how neutralizing the driver is done.  I hope to review neutralizing of both the driver and power amplifier tubes with the other engineers in the days ahead.

2013/06/02 — Sunday

This Sunday, pastor Deon spoke on James 6 regarding biblical healing (healing of emotional needs, physical needs and spiritual needs) and effectual prayer.

A few of the African animal candles made at Swazi Candles

Last week Ruth had invited us to eat out with her this Sunday, so after church we drove her to Malkerns to a quaint restaurant, Sambane Tea Garden, next to Swazi Candles where we ordered fish to eat.  It was quite nice, especially considering that Swaziland is a landlocked country and fishing is not a vocation.  It was so busy that our waitress seemed quite stressed.  It was obvious that Ruth had been there before and tried to cheer her up.  After dinner, I tagged along with Ruth and Virginia as they checked out the unique candles made here in Swaziland.    http://www.swazicandles.com

We picked up some pizza from Palato’s in Manzini after we dropped Ruth off at her home.  Palato’s pizzas seem to be light on the tomato sauce and heavy on the cheese and are quite good.   We got the pizzas because this evening we had the intern, Jonathan, over for an evening meal.  Jonathan is a mechanical engineering student from LeTourneau University (my alma mater) and plans to be in Swaziland   for eight weeks to help with several more mechanical type projects.

Typical Day in Swaziland…(whatever typical is?) or Virginia’s Ramblings

Since Larry has been doing most of the blogging, I decided that perhaps it is time to give you an idea of what I have been doing.

Our 'home' in Swaziland -- view from auto gate

Our ‘home’ in Swaziland — viewed from auto gate

As I think we have mentioned before, the house we are staying in has 4 bedrooms, none of them tiny, an extra room for an office (the people in this house use it for a playroom), a fairly large area for the

Livingroom -- viewed from dining area -- fireplace to right and two steps up to bedrooms

Livingroom — viewed from dining area — fireplace to right and two steps up to bedrooms

living room and dining area, also a good sized entry area and a bigger kitchen than I have used in quite awhile. The living, dining, entry area and kitchen are all open and the division between the kitchen and the others is a free standing brick fireplace and a bar cupboard in the kitchen. The ceiling in this area looks like knotty pine,

Kitchen -- viewed from dining area -- fireplace to left and gated door to laundry room

Kitchen — viewed from dining area — fireplace to left and gated door to laundry room

but it could be something else. It is a peaked ceiling, and very pretty. We also have a very large laundry

Looking down the hall to the bedrooms with security gate closed

Looking down the long hall to the bedrooms with security gate closed

room with a front-loading, German washing machine. I am grateful for the great instructions that were written out by hand!! There is also a scullery sink, and a half bath in the laundry room. The room is large enough for an ironing board and even a table if one wanted a table for folding clothes. There are two full baths in the main house area. There is also a one car garage and a lovely screened in porch on the back of the house.

View of ceiling over living, dining room and kitchen with fireplace chimney.

View of ceiling over living, dining room and kitchen with fireplace chimney.

One of the previous families who lived here, created some beautiful flower gardens and built a bird aviary, however there are no birds in it and it doesn’t look like there ever were. As you know from previous posts, we also have bananas, granadilla or passion fruit, nartjies or orange mandarins and lemons growing in the yard. We are enjoying them! A neighbor gave us a tree tomato fruit to try. I cut it in half and sprinkled it with a little sugar. Yummy! I think we had some tree tomato in Quito, Ecuador as juice. I really like that.

Uphill both ways -- to the clothesline and to the gate to neighbors -- corner of screened porch at right

Uphill both ways — to the clothesline and to the gate to neighbors — corner of screened porch at right

I must also mention that a hill was cut down to make a flat spot for this house. This means that every time I want to visit a neighbor, hang out the laundry, pick fruit, water plants or most things outside, I climb that hill, which is a bit steep. Indiana is not hilly, so the calves of my legs were a bit sore that first week!

Our day usually begins around 5:30 in the morning, before sun up, so we enjoy the beautiful red sunrise every morning. Unfortunately, it is usually to cool to enjoy it and the bird songs by eating breakfast out on the screened porch.

We need to turn the hot water heater on in the mornings for about a half an hour, as electricity is very expensive here and keeping the heater off is a good way to keep costs down. While the water heats, we usually eat breakfast, which is much like home except for the type of juices we enjoy. By the time breakfast is done, the water is hot for showers and we turn off the heater (it is called a geyser here, with a long e and silent y). Larry leaves for the site at 7:00 and I leave at 7:00 one or two mornings a week to go to the office in town and work on inventory of the hostessing equipment. Two mornings a week, I am involved with some of the TWR ladies and others in prayer meetings at 8:00.  The days I am in the office, I enjoy having devotions with our local staff and whoever is in town that day rather than the site.

Most afternoons I am free to do shopping, cooking, and whatever else is necessary. Shopping is much easier to do than it used to be here in Swaziland. It is possible to buy everything at a supermarket. I have been to three large (large compared to the past) supermarkets. Two of them have paid parking and the third (the more expensive, newer one) has free parking. Back when, we had to visit the meat market, the fruit market and then a small supermarket. One also had to be very careful to check for bugs in the dry food that was purchased, which doesn’t seem to be as much of a problem as in the past. We usually got bread at another stop and if any of the places did not have what you wanted, you were most likely out of luck. It is still possible to shop at many different places, but not necessary as it once was. It is so nice to drive to a grocery, buy what is needed and not have to fight the car traffic or human traffic to another shop.

Some days, I am asked to watch the children of the other missionary families. They are sweet children and happy to give out hugs and are FULL of energy! I am glad that I can help out in this way sometimes and make life a little easier for the young moms. We have also had people over for meals, a new mission family and visitors from South Africa. It is more of a challenge with other people’s things, lack of equipment like mixers or similar items. I use a whisk and it works quite well and burns a few calories…maybe. Also, not having a stock of food items to draw from and the fact that I don’t drive here so I can’t run to the store, makes it more of a challenge.

This morning before 8:00, I went out and trimmed a bush that had grown tall enough to set off the motion detector when there was a breeze.  It was buzzing on and off all night. I sure hope the one I cut was the one giving trouble.

Our Swazi clothes dryer

Our Swazi clothes dryer

I usually have one day a week when I am home all day. That is the day I catch up on laundry, if I have not been able to squeeze it in on another day. Doing the laundry is pretty normal. The machine is different as it heats up the water if it is not hot enough. It also has a digital timer read out, so it is easy to tell how long the load of laundry will take. It is small, so I do more loads than I would do at home. Ialso have to climb that mountain (hill actually) to hang out the clothes. We usually have beautiful sunny, dry days with a nice breeze to dry the clothes, so it is a joy to do and to smell the fresh outdoor smell when they are brought in.

View of Execution Rock (in Mlilwane Game Park) from the Guava Gallery  Lorraine, Inge and I hope to climb it in a couple of weeks.

View of Execution Rock (in Mlilwane Game Park) from the Guava Gallery. Lorraine, Inge and I hope to climb it in a couple of weeks.

After I have done the necessary things for the day, I do have my Kindle to read and I brought along quilt pieces to keep me busy. I have not had much time to work on the quilt, but I do get quite a bit of reading done, waiting for the computer to load. But if the computer is too slow, I wash dishes or sweep the floor instead of reading.  Some days, I take my quilting to another missionaries home and work on it while they work on a project.  If they need help, then I am there to try and be helpful.

Appletiser -- carbonated 100% apple juice

Appletiser — carbonated 100% apple juice

One day last week Lorraine and I took a day off from doing the inventory. We and another friend decided to go to Guava Gallery for lunch. Guava Gallery is an outdoor restaurant with a shade roof that also has an art gallery, Consulate for Finland and you can buy silver jewelry. It is run by a Finnish man and his wife and he is a silver smith who is teaching Swazis how to use silver to make beautiful jewelry using local products and their talents. They also have a few other types of art there for sale and all made locally. I enjoyed an Appletiser with my lunch that day. An Appletiser does not have an equal in the U.S.

One in a blue moon you will see a blue monkey sitting on a turtle!

Once in a blue moon you will see a blue monkey sitting on a turtle!

Sundays, we attend the same church we attended when we lived here.  The pastor is doing a study in Revelation.  I can’t remember when I last heard a study on that book!  Maybe when my father-in-law was pastor at the church I attended growing up?  I know he really liked that book and enjoyed it.  It showed in his teaching of it.   Pray that we can be an encouragement to the local church here.  There are many areas where an extra pair of hands would really be appreciated.  They have a very active AWANA group and ladies and mens groups.  Pray for these outreaches.

This carved giraffe appears to be smelling the bouganvillia

This carved giraffe appears to be smelling the bouganvillia.

In the evenings after supper, we often play Rummikub, catch up on email, and Larry studies for the class he is teaching.  Usually the sun is down before he returns from work and  goes down as the same red ball of fire as it is when it comes up in the morning.

Great is Thy faithfulness!

 

2013/05/25 — Week 4 Review

This week had typical fall May days.  The days were sunny with highs in the mid 70s and the lows in the low 50s at dawn.  The temperature inside the house is in the mid 60s.  The next two months should be cooler as Swaziland moves into winter.  We are hoping that it does not get too much cooler inside the house.  Right now the sunrises at 7am just as we leave for work and the sun sets at 5pm as we head home.

A chicken run on the farm

A chicken run on the farm

Picnic at the farmhouse -- even though it is almost winter, everyone wants to sit in the shade

Picnic at the farmhouse — even though it is almost winter, everyone wants to sit in the shade

Sunday, May 19, we again attended the Evangelical Bible Church.  Pastor Dion Philips’ message this morning was on the white, red and black horsemen of Revelation 6.  There was a church picnic held ‘immediately’ after the morning service, which ended at

Ruth and her brother Dick.  Note the airco and water heater -- electricity has been here only two years

Ruth and her brother, Dick.  Note the airco and water heater hanging on the wall– electricity became available in the area only two years.

Reese and Dick -- charter church members

Reese and Dick — charter church members

11am.  It was held at a farm way out of town in the bush about a mile north of Croydon, which is a tiny village about 30 miles northeast of Manzini.  We got directions from Reese, whose younger brother lives at the farm, and his phone number in case we got lost.  We then

Some of the delicious food -- not your normal picnic fare

Some of the delicious food — not your normal picnic!

went home, changed clothes and drove slowly there hoping that some of the church members could catch up and we could follow them on the back roads

Ethny and Chester -- charter church members

Etheny and Chester — charter church members

to the farm.  Fortunately, the directions received were good and we drove to the farm and arrived about 30 minutes before any of the church

Pastor Dion and his wife

Pastor Dion and his wife

members.  By the time most everyone had arrived and the picnic (more like potluck) table was prepared, we began eating after 2pm.  Just like last week at the

Herlene, ???, and Thelma

Herlene, ???, and Thelma

Youngs, there was curry, just not as much variety, and,

Reese's brother Emmanuel facing camera and fresh meat in background -- not the dog!

Reese’s brother Emmanuel, facing camera, with fresh meat in background — not the dog!

as always, all the food was delicious!  They had organized a lot of games, but the only one played was volleyball.  Most of us had a great time just sitting around and visiting.  Late in the afternoon, they had a version of a hay ride, without the hay.  A

Volleyball game -- even saw some head volleys by the soccer players!

Volleyball game — even saw some head volleys by some of the soccer players!

Boerewors (spicy sausage) on the grill

Boerewors (spicy sausage) on the grill

tractor with trailer was loaded up and driven down to the Mbuluzi River, which was about a mile away.  Virginia and I decided to leave about 4:30pm so we would not have to drive home in the dark.

In the evening, I again reviewed the control system section of the HC100 manual for teaching it on Monday morning.

Let's not forget the cleanup crew!

Let’s not forget the cleanup crew!

Ride to the Black Mbuluzi River in a trailer behind the  -- Swaziland's version of a hay ride

Ride to the Black Mbuluzi River in a trailer behind the tractor — Swaziland’s version of a hay ride

On Monday, we spent almost all morning until 1pm, which is lunchtime in Swaziland, covering  only part of the section of the manual on the control system.    That evening we were invited to dinner at the Stavropoulos’ house.  We walk through a gate at the back of our yard, through the back part of the guest house yard, through another gate, then across the Stav’s yard.  It takes only a minute or two to get there.  The acting station director, Sharon, was also there from the Africa Regional Office (ARO).  She had a packet of Virginia’s anti-rejection medicine for her transplanted cornea, which we had ordered a week before.  It had arrived in Cary, NC, only three days before and we were expecting it to come to ARO with Gottfried with a second packet of medicine in a week or so.  Apparently, someone else was headed to ARO, who happened to be leaving on Saturday.  What a pleasant surprise!

We visited for a long time with Sharon and the Stavs finally leaving for home about 10pm, which is not early when the alarm clock is set for 5:30am.  Of course the outside motion sensors of the houses, which are automatically turned on shortly after sundown, announced our progress across the yards as we walked home with their short intermittent ‘squawks’.  We managed to get into our house without setting off the alarm.

Tuesday morning there was no internet.  Steve was in town for morning meetings, so we did not continue the training.

Found this praying mantis in the driveway.  Note the camouflage on its wings

Found this praying mantis in the driveway. Note the camouflage on its wings

Sharon had brought a new control computer for the site, which controls about a dozen computers that are at the site to provide internet access and programming for all the transmitters, plus backup.  We took this computer to the site and Klaus installed it, but major setup challenges were encountered.  Klaus and Graham worked on making all the necessary adjustments with assistance via Skype from Waldo at ARO.  When Waldo left at 4:30pm, Klaus continued assistance came from another ARO person, Gottfried, who happened to be in Cary, NC, for a couple of weeks.  Klaus left the site at 5:30pm and turned control of the computers over to the people in Cary, who worked on it for the rest of our night — 6am here and midnight in Cary.  This capability totally amazes me!  Fortunately, the backups on the playout computers kept the transmitter programs flowing smoothly to the transmitters.  Oh — the internet was working again, but not much, if any, faster than it did previously.

While the ‘experts’ were working on the computers, I decided to take a walk around the antenna field and check out what changes had been made over the years.  Before doing so, for some reason, I felt it necessary to spray my shoes, socks and pant legs with tick repellant!  My little walk was over 3 miles and lasted almost an hour and a half.  The antenna field is huge and I did not walk to the its extremes.  Tick Bite Update — no more Benadryl for itching.  Klaus was right that it would take three weeks for the itching to go away, but, four weeks out, there is occasional mild itching of my ankles.

The auto gate in front of our house

The auto gate in front of our house

This evening, we had Bob and Barb, a couple on loan from the Far

Yes, our house is behind the gate!

Yes, our house is behind the gate!

Eastern Broadcast Company (FEBC) to TWR ARO, over for dinner.  They are here with Sharon to visit the TWR Swaziland staff.  Steve was here, too, as his wife was elsewhere for the evening.  We had a good visit with Bob and Barb learning about their 20+ years with FEBC in the Philipines and East Africa.

The gate 'retracts' on a rail into a channel

The gate ‘retracts’ on a rail into a channel

When Sharon came by to pick them up about 9:45, I pressed the remote to open the auto gate by the road to let the car in.  Shortly after they drove off, I noticed

The gate control motor engages a gear on the bottom of the gate

The gate control motor engages a gear on the bottom of the gate

the gate had not closed automatically, so I pressed the remote again.  The light bulbs on the gate posts, which stays on while the gate opens or closes, flashed only momentarily.  Now I had to figure out how to repair the gate motor or get it closed for the night.  Meanwhile our outside motion sensors announced my progress across the yard.  I went back to the house to find the keys to open the gate control box.  Meanwhile the alarm on the house had automatically activated at 10pm, like it always does.  Unaware of this, I opened the front door and the alarm went off.  I managed to quickly shut it off, but then had to let all the TWR staff here at Singing Pines know that it was a false alarm, then call the alarm company to report the false alarm.  Now Klaus, informed of what was happening, came to our rescue.  By the time he got her, I had the gate’s control box open, but had

When we found this extremely bloated battery the problem was found.  Fortunately, it did not cause any other damage.

When we found this extremely bloated battery the problem was found. Fortunately, it did not cause any other damage.

no idea what to look at first.  Klaus, having worked on these many times before, quickly suspected a problem with the 12volt battery.  When we pulled it out, the plastic shell of the battery was very bloated.  Klaus took off somewhere on the TWR property and came back with a spare battery, which was quickly installed.  The gate then went through a calibration process, where it went back and forth in ever increasing cycles to locate the end of travel and reset its limit switches.  It was quite fascinating to watch, but I was glad that Klaus had come to help, as I would have had no idea how to do this without a manual.

By this time it was 11pm and the alarm clock goes still goes off at 5:30!

Wednesday morning is staff meeting, as usual.  Bob is quite a musician and for about 30 minutes led the staff in a wonderful time of worship with his signing and guitar.  Sharon gave staff an update of events in Africa and encouraging news of the possibility of increasing the outreach to Africa.

Graham, Salema and I went to the site after staff meeting.  Steve and Klaus were involved in meetings in town for the remainder of the day.  The computers at the site did not have internet access.  Graham discovered that only one of the wireless systems at the site was working and that the site computers were connected to the same network as the non-functioning  wireless system.  Since Graham and I are both new here, we did a lot of searching before finally finding out that the site computers just needed to be rebooted and they worked again.   Also that the non-working wireless has not been functioning for some time!

We also spent some time getting familiar with the audio system to isolate the low level noise on the Optimod for transmitter 3.  We learned enough to find out that the noise is not from the Optimod, but from the computer that sends the audio to the Optimod.  At least we are making progress, although the problem has not been solved yet.

 

Salema, Bob and Larry help grill the meat.

Katja, Salema, Bob and Larry help grill the meat.

This evening a braai (BBQ) was held for the whole staff.  As is typical

We are able to gather in an open pavilion located on the TWR Singing Pines property

We are able to gather in an open (on two sides) pavilion located on the TWR Singing Pines property

with Swazi braais, there was lots of meat.  Some of the Swazi staff brought a big pot of mealie pap (white corn meal) a Swazi staple food.  Virginia and the TWR ladies spent most of the day preparing for it.  The meat included chicken, steak and boerewors (spicy sausage).  When someone said that each person was allowed only one piece of meat, Virginia served

Lorraine, Phumzile, Barb, ???, and Sharon

Lorraine, Phumzile, Barb, Precious?, and Sharon

each person one piece.  She was quickly informed that the limit was one piece of each kind of meat.  I took a piece of sausage and the smallest (still good sized), thinnest steak and Virginia took a similar

Bob led in singing some choruses and hymns.

Bob led in singing some choruses and hymns.

steak.  We had more meat in one meal than we usually have in a week!  Everything was good.  Bob led us in a few favorite songs accompanying with his guitar.  The Swazis were beginning to really become actively involved with the music, but around 8pm, at the end of one of the more lively music pieces they kind of ‘danced’ right to the vehicles to take them home.  It was getting too late for them!  Even with cleaning up, we got home earlier than the previous nights.

Thursday morning Steve and Klaus had Field Council meetings, so Salem, Graham and I went to the site.  I noticed that one of the transmitters was not running as efficiently as it should.  Upon investigation, it was noticed that this was only on one of its many frequencies and antennas.  I tried to do some retuning, but was not able to increase the efficiency appreciably.  I did notice that the VSWR is about 1.6 which is higher than the other antennas.  This needs further investigation to determine whether the antenna mismatch might be causing something unusual.

Graham had expressed some interest in the extents of TWR’s transmitter site property, so I found some maps and reviewed them with him.  We got into quite an extensive conversation about the history of the site, the bush clearing and road-making that was required.  Using a map from Google, I also showed him the various routes that we had to use to get to the site when it was being developed, depending on where fording the river was possible.  It is amazing how many of those routes have been completely taken over by the bush and are now impassable.  Some of the land which is currently being used for the main entry road is being sold and it looks like a new route will have to be cleared along the north boundary of the Dindeor Ranch.  We looked at that route and noted that a lot of culverts and filling of gulleys will be required, unlike the current route along a ridge with no culverts.

I tried to do some more preparatory review of the control system for training, but my eyelids kept getting heavy.  Went for a 35 minute walk from the building to the cattle grid and back.  This made a big difference.  Klaus and Steve arrived at the site after 2pm, so late that we decided to wait until Friday for the training session.

Thursday we had our first evening at home this week.  I spent much of the evening finishing and posting the review for last week on our blog and then getting this week’s review up-to-date.  Hopefully it will get posted in a more timely fashion.

Larry picking just a hand of bananas, instead of the whole stock.  Our grandchildren wanted a picture of a monkey in a tree -- well here it is!

Larry picking just a hand of bananas, instead of the whole stalk. Our grandchildren wanted a picture of a monkey in a tree — well here it is!

Friday morning, all the engineers and technician were at the transmitter site, so I

Virginia picking mandarins from the ground

Virginia picking mandarins from the ground

was able to complete the HC100 control system training.  In the afternoon, I finished a revision of our McGuiReport on my laptop at work, but spent over an hour unsuccessfully trying to email it to TWR Cary, using the site wireless connection.  I then found out that the site computer was working better because it is wired directly to the network.  By downloading the needed files to a flash drive and plugging them into

the site computer, the job was done in a few minutes!  Guess I will won’t be taking

Larry picking the top mandarins from a ladder

Larry using a ladder to pick the top mandarins

my laptop to the site again.

Friday evening, Virginia and I decided to relax a bit, after a

Grenadillas grow on a vine on the fence

Grenadillas grow on a vine on the fence

rather hectic week.  We played several rounds of Rummikub.

Saturday, we slept in until 7:30, then puttered around most of the day.  We did pick some of the fruit — bananas, naartjies (mandarins), and grenadilla (passion fruit) — that

was ripening in the garden.  I also trimmed some dead branches from a second naartjie tree that had been damaged by grenadilla vines growing into it.

In the evening we played some more Rummikub.

2013/05/18 — Week 3 Review

On Monday morning, the new engineer needed to register his children in school, so we delayed the training session until after lunch.  This session covered the HC100 power distribution and cooling systems.

The blower which provides positive pressure ventilation and cooling to the building was vibrating terribly when we arrived this Monday.  It was discovered that one half of the two belt variable pulley was askew and its associated belt was the source of the vibration.  The motor was shut off and the belts removed.  The half of the pulley that was askew had apparently ‘stripped’ its threads on one side and was tilted.  I have never seen this happen before.  The only explanation seems to point to the one setscrew slightly loosening over time.  The opposite side could them ‘wobble’ just a bit and over time the threads on the opposite side were worn away.  Anyway, that half of the pulley was removed and only one belt was used until another pulley could be ordered.  Since the motor has a variable speed drive with reduced starting torques the double belt was not a necessity.   A fixed two belt pulley was ordered as a replacement and installed later in the week.

The low level Optimod noise mentioned last week was not there when we tried to investigate it further Monday afternoon.

Tuesday morning the training session was on the HC100 tuning system and phase detectors.  The new engineer was not feeling well and left at noon.   In the evening, just before leaving for home we noticed that the low level Optimod noise had returned!  After supper, I worked on the draft for our June McGuiReport.

Wednesday morning we attended the weekly staff meeting and had the rest of the day off.  The next two Wednesdays of May we will be working after staff meeting and make the trip to the site.  After staff meeting I took Virginia shopping, since she doesn’t have the courage yet to drive on the left side of the road in such hectic traffic.

Since our McGuiReport is due for proofreading this day, I finished the final touches and sent it to TWR Cary.  Somewhere in the middle of the process, I took a quick nap upon getting too drowsy to think clearly.

The road was graded this afternoon, since it was still reasonably soft after the rains last week.  According to the other missionaries, it has been a long time since it was done.  Now there are only a few potholes and washouts in the one mile drive (its seems much longer) to the tarred road.  Wonder how long that will last?

The evening was spent studying the metering section of the HC10o manual.  For me, it is requiring more review, since it deals with generating data for computer control of the transmitter.

Thursday morning was spent teaching the metering system and interacting with the other engineers and technicians.  Its amazing how much is learned by everyone, especially by me!  This information was timely as in the afternoon we began trouble shooting a metering problem that was noticed the day before.  We discovered that a meter driver card had switches on it that were not properly selected, but did not have time to rectify the problem because the transmitter was due to go on the air.  I began to suspect that the two meter driver cards had been swapped, but would have to wait for the next day to verify.  In the evening, I reviewed the control system, which requires even more computer knowledge, which means it is even more challenging for me than the metering system was.

The defective splice that was opened up after it was cut out of the slew switch control line.

The defective splice that was opened up after it was cut out of the slew switch control line.

Some urgent station repairs required on Friday caused the training session to be put off for the day.   There was a problem with the slew switch on the largest antenna, which resulted in it switching continuously without stopping in the desired position.  The slew switch ‘slews’, or redirects, the main beam of the antenna slightly to the right, or to the left, of center to direct a stronger signal to a target audience in that direction.  After some troubleshooting, it was discovered that one of the wires that carried the signal of a limit switch was open circuit.  Unfortunately, that wire was 1000 feet (about 300 meters) long and buried underground!  Several years ago, the original cable that had been buried in 1978 had failed.  It had been replaced with three runs of house wiring suitable for underground use.  Only

100 meter lengths were easily available, so two splices were were required in each run.  It was thought one of the splices had failed.  It was easy to see where the line was buried, so 100 meters was measured off from the building and the digging began.  No splice was found there, so the trench was extended back towards the building.  Fortunately, it was easy digging as about 50 feet was dug up before the splices were found.  Also the splices were marked, so the suspect line was easily isolated.  The fact that water was seeping into only this section of the now, rather long, shallow trench provided evidence that the fault might the here.  Since the splice was encased in a 6 inch long plastic pipe filled with epoxy, the only alternative was to cut the wire on either side of the splice.

Closeup shows the wire that was eaten away by corrosion

Closeup shows the wire that was eaten away by corrosion

The splice was then measured and found to be open circuit.  This was a good thing, otherwise it would have been necessary to move down the line 100 meters and dig up the next set of splices.  A temporary jumper, now with two splices, was connected and draped over pieces of wood across the trench to keep the temporary splices, and the other two splices out of the water.  The slew switch now worked.  A continuous 1000 foot length of 7 conductor cable with armored underground jacket has been ordered to eliminate all underground splices.  It should take about a week for it to get to Swaziland from Johannesburg, South Africa.  It is quite pricey, but should be worth it, as the other splices could fail at any time.

While others were doing the repair, I took the old splice into the shop and cut the plastic tubing off, then broke the epoxy off with a hammer.   Some water had seeped into the splice, even with the epoxy encapsulation.  We actually thought the problem was going to be in the actual splice, but one of the three wires had corroded away right next to the splice.

After the cable repair, our attention was focused on the metering card problem isolated on Thursday.  Sure enough, after close inspection of the 32 data switches on the two meter driver cards and figuring out how each should be set, they had been swapped in location.  It did not effect the operation of the transmitter at all, but sure gave confusing meter readings.

Virginia and I relaxed this evening and played several games of Rummikub.

After a busy week, we were lazy on Saturday morning and I did some paperwork that had been put off.  In the afternoon I took Virginia to a ladies’ meeting at the church.