Tag Archives: D8

D8 Amplifier Circuit Installed

The new circuit and outlet has been installed for the new D8 Amplifier. It will be on the air soon.

D8 Amplifier Outlet (on the left) The other stuff is powered in the center.
  • This is a 240V 20A circuit because the amplifier takes 195-250 VAC, 50/60 Hz up to 20A supply voltage
  • The outlet for the old amp was on the South Wall and would require a extra long power cord. I had the outlet moved here so it is near the other outlets used by the station and won’t require a new power cord.

D8 Amplifier Unboxing

Today I brought the new Elecraft Amplifier to the D8 shack and took it out of the box.

New Amp on top of old Amp

its footprint is a bit smaller than the old amp, but it comes in two parts with the power supply as a separate unit.

Back of amps.

It has a 20 amp AC plug but different style than the old amp. I will have to have the electrician install a new receptacle. While I do that I will have it moved to the West wall since that will be behind the amp. The current receptacle is on the south wall and requires a longer cord.

Everything arrived with the package. Cables, manual etc.

73, Kirk

April 2021 Meeting

April Banner, Field Day Planning

Field Day Planning and D8 Roof Tour

See Recording here (Aerospace Only)

Meeting Slides

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80M Vertical Straightening

Now Straighter 80M Vertical on the roof of D8

I met with Albert (KD6NSG) this morning on the top of D8 and we went over the antennas that we have there. We saw that the 80M vertical had drooped over quite a bit, and we were able to straighten it up a bit with an adjustment of the guy lines. It does look like there is a kink in it, but it should be better now. It may have also lost one of the rods in the top hat too.

We confirmed that in addition to the above, we have our big beam antenna, plus what looks like a EME setup. It is not hooked up anymore, but it has two long yagis on a Az/El mount and a third Bi Polarized yagi connected to the AZ portion. This may be able to be restored to service in the future.

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There is another vertical that seems to be in good service, but the radials should be sorted out better. Based on the height, I suspect it is a 6 or 10M vertical.

73,

Kirk KK6KC

Jan 2018 Mtg Minutes

Aerospace Radio club meeting, 25 Jan 2018
Room 1607B, 11:30-12:30

Attendance: Kirk Crawford, Teresa Moore, Joe Barger,
Tom Essenpreis, Don Hall, Steve Schmidt and Bob Lanahan

8 mins of meeting audio is available <click here>

I. Kirk (radio club president) made a presentation.
Here are Kirk’s charts 2018-01 Meeting Slides

Notes taken to supplement Kirk’s presentation.
1. New club members have on-line training available to them.
2. $5K is the club budget this year
3. Joe installed remote desktop in Radio Shack in D8, more on this            topic later.
4. Goal to have A2 antenna purchased this year.
5. Kirk asked if we need any purchases for field day. Discussed
options.
6. Kirk charts include ARRL Grid chase, good for FT8, he’s near
the top 1,000 chasers

II. Tom presented his briefing on Magnetic Loop Antenna
Here are the charts  Mag Loop – 26 Jan 2018

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1. Went thru his charts and excel spread-sheet
2. Tom’s briefing was very interactive, there were a lot of
questions, and overall it was a great presentation.
3. His capacitor is rated between 11-93 picofarads
4. His antenna tunes between 13 – 19 Mhz

III. Joe (radio club treasurer) presented his remote desktop set-up.
1. His surface was connected to the D8 shack computer, running
FT8, connected to the K3 radio.
2. He is using DxLab and remote desktop VPN.
3. Joe wants to get an internet controlled power strip, cost ranges
between $200 and $500.

Meeting photos
1. Tom and Don with Magnetic Loop Antenna

2. Joe and Kirk – remote connection

3. Joe’s remote connection running FT8

September Club Meeting

Radio club meeting 9-29-16

Link to Slides

Members present:  Ryan, Teresa, Tom, Kirk, Ching

A6 shack:  The D8 shack will eventually go away if Aerospace gets rid of D8, the A2 shack is in need of some work, the A3 shack is owned by Security, and the D1 shack is VHF/UHF only and is on a private lab bench.  A new shack in A6 could provide additional capability as well as a roof-mounted antenna that could be used by the trailer (in the event that the building is still standing but not accessible to personnel.)  So far, all of the proposed rooms (the electrical room and the stairwell) have been rejected by management.  The new proposals include the old networking room and a Tuff Shed on the roof.  Electrical rooms in general may be problematic, which may spell trouble for the D8 and A2 shacks.

For A3, we need a replacement HF antenna as the old one is missing.  The two proposed choices are the Cushcraft R9 or the GAP Eagle DX.  Contact Kirk with your preference.

AEA Octoberfest:  Wed Oct 19 from 11-1.  We’ll have a table, 2 chairs, a canopy, and electricity.  Bob and Tom will be there and others are welcome to join them.  They will have the Buddipole, radio, and computer hooked up and will do a JT65 demo.

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Kirk’s satellite contact:  Arrow antenna.  50-50 Saudisat 1-C.  Heavens above app.

San Diego Hamfest was Saturday, Ham Con is coming to Torrance next year.

Christmas party:  Don will coordinate again.

Raffle:  Tom won first prize and chose the headlamp; Kirk won second and chose the screw driver set, and Teresa won third and got the tape measure.

 

May 26, 2016 Meeting Notes

Audio of the meeting:

Members in attendance:

  • Ryan Noguchi AI6DO
  • Kirk Crawford KK6KC
  • Don Hall KK6DCX
  • Teresa Moore AG6OD
  • Joe Barger N6KK

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We had some discussion about the upcoming Field Day. We considered what we could do for a 20 or 40 meter wire beam antenna on top of the parking structure and how we would keep the driven element and the reflector parallel to each other. However, given that we expect very few people to be available to do Field Day with the club, we decided to just stick with the antennas we already have: the CrankIR and Buddipole for HF and the verticals attached to the fiberglass masts for UHF/VHF. We will probably run a 20 m station and either 40 or 15, depending on conditions that day.

On the Wednesday before Field Day, we will put up signs advising people to not park in the travel parking on the 4th floor and the North-East section of the 3rd floor. Cones and tape will be put out Thursday afternoon to block off parking spaces, and tables and chairs will be delivered to the 3rd floor Friday afternoon. All equipment will be moved Saturday morning. Kirk will bring 5 gallons of gas for the generator. We won’t invite any external visitors (like city council, press, etc.)

For general emergency use, we discussed having a 30 m APRS system that can send an email out in case of emergency. Ryan will spec out a system and report back. We will also want to be able to communicate with COS/Chantilly on voice, which can be set up over email via APRS.

Kirk brought up the point that during the A6 evacuation a couple months back, the security radios caused a lot of interference on our standard go-to 2 meter simplex frequency (147.51 MHz). He suggested trying a 440 simplex frequency. We would have to test to see how far we can get with 440 simplex. If there is someone with access to a real antenna, we might be able to relay messages.

It was recommended that we purchase the Yamaha CM500 headsets for the rigs in the trailer and for Field Day use.

Kirk reported that he had asked about putting an A6 shack in an electrical room on the second floor of A6. Maintenance people got upset about us using the electrical rooms in general. We will be cleaning to be sure that we are not blocking any electrical panels in any of our shacks in electrical rooms, especially in A2. Kirk is waiting for approval on the A6 shack but will put together a preliminary list including costs for budgeting purposes.

Joe wants to buy a good Software Defined Radio for the D8 shack.

Budgets are due in July so we should allocate/spend money now.

February 2015 HAM Club Meeting

(Audio of the meeting)

The meeting began at 11:30 AM on February 26, 2015 in D8 1006A.  Five members were in attendance:

  • Teresa Moore (AG6OD)
  • Victor Lin (KK6RZO)
  • Don Hall (KK6DCX)
  • Kirk Crawford (KG6MTE)
  • Ryan Noguchi (AI6DO)

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The radio equipment that was purchased for the D1 shack has arrived and has been installed.  The Radio has been tested and can reach the El Segundo Repeater.  The simplex portion of the system will be tested after this meeting.  Teresa will try out here new roll as the NCO tomorrow.  If club members would like to try out the radio setup, contact Teresa Moore for access. 

We discussed possible meeting topics for future meetings.  I will research a tree mounted dipole system I plan to use for  my home, and will present that at some point.

Teresa’s husband knows about digital modes may come in and present.

We also agree we should check  out the field day equipment we have to make sure we know how to set it up and use it before field day comes along. Hopefully we can do this in either March or April.

I also took an action item to contact Jason to inquire about the  HF Radio Status for the trailer.

Teresa will study the cross-band repeater mode of her new radio, and we plan to try it out in order to test it’s use for a possible future CERT exercise.

We gave recommendations to Victor Lin on possible VHF radios to buy as his first radio. The conclusion was to try the inexpensive Baofeng radio available on Amazon for ~$30.

The meeting was adjourned at about 12:20 and we went up to the D8 Shack for a little tour.

 

February Meeting moved to D8/1006A

We will be having our February meeting in D8/1006A at 11:30 AM.   This was discussed at our last meeting so that we might have more D8 people show up and learn about becoming Net Control Operator for the morning net.  We will also discuss other issues.

 

73,

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Kirk Crawford

KG6MTE