Difference between revisions of "ToDo"

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* 2 Position .140MATE-N-LOK power connector: Digikey# A25469-ND (Qty 20) [XTR High Power Connectors]
 
* 2 Position .140MATE-N-LOK power connector: Digikey# A25469-ND (Qty 20) [XTR High Power Connectors]
 
* .140 In diameter female plugs: Digikey# A25461CT-ND (Qty 60) [XTR High Power Connectors]
 
* .140 In diameter female plugs: Digikey# A25461CT-ND (Qty 60) [XTR High Power Connectors]
−
 
+
* .140 In diameter pin extraction tool: DigiKey# A25474-ND (Qty 1) [XTR/Syntech I High Power Connector Maintenance]
  
 
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'''Build'''
 
'''Build'''
−
* Construct pieces for Richwood site.  Cabinet is now ready, obtained 5/8" bolts to fill open bulkhead slots.  Planning on using 3 of 8 to start. Diamond V2000, Diamond V23 (APRS), Cushcraft 224WB.  Use 4 (2 low/rear, 2 top) 5" fans for air circulation.
 
−
* Setup a pair of 70-530B radios for 438 MHz range as a dedicated link between CMHSW2 and CMHSW3.  Will use 70cm side of AR-270B at CMHSW2, antenna at CMHSW3 TBD.  Set quality to 250 on both sides.
 
−
* Remove 223.420 MHz radio/antenna from CMHSW2, CMHSW3
 
−
* Add 145.010 MHz radio at CMHSW2, use 2m side of AR-270B.  Attempt path to LAN01 in Lancaster, possibly MECH/CMHSW4.
 
−
* Add 29.275 MHz port to CMHSW2 and CMHSW4.  Try to make a seasonal resilient link to replace 223.420 MHz.  Use VALIDCALLS and L3ONLY in BPQ port definitions
 
−
* Construct 7 element 70cm quad, end mounted for Mechanicsburg to point to Richwood.
 
  
 
'''Develop/Test'''
 
'''Develop/Test'''
−
* What can we do to acquire more gear or funding?
 
  
 
'''Maintenance/Modifications'''
 
'''Maintenance/Modifications'''
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'''Sites'''
 
'''Sites'''
  
−
* Ashland - In contact with Ashlan Area Amateur Radio Club.  Interest has been expressed in possibly establishing a packet and/or APRS system.  Invited to give a presentation on packet radio on September 14th @ 7:30pm.  Hope to get more information on site(s) in the next few days.
+
* Ashland - Online
−
 
 
−
* Columbus/Battelle - 446.625 radio replaced, in listening, TXDelay seemed short.  Contacted Bill, TXDelay was 150 ms, now 350 ms, performance is much better.
 
−
 
 
−
* Columbus/Lincoln Tower - Tune VHF Duplexer for 144.390/144.930 to share GP-9 on 2m.  Get inventory of existing antennas.  Should be a 449-6S beam pointed towards Worthington and a 224WB pointed towards Lancaster.
 
−
 
 
−
* Columbus/Southwest - RF Path tests:
 
−
      145.010 MHz 1200 Baud -> C K8QIK-12 - directional antenna towards Lancaster (Failed)
 
−
      145.010 MHz 1200 Baud -> C N8XIX-12 - directional antenna towards Lancaster (Failed)
 
−
      446.625 MHz 1200 Baud -> C KB8UVN-5 / omni or directional antenna north
 
−
      446.625 MHz 1200 Baud -> C KB8UVN-7 / omni or directional antenna north
 
−
      446.625 MHz 1200 Baud -> C W8CQK-1 / omni or directional antenna north
 
−
      446.975 MHz 1200 Baud -> C K8QIK-2 - directional antenna towards Lancaster
 
  
−
  Probably not going to put anything here for awhile
+
* Columbus/Battelle - Had to be removed due to personel changes at Battelle
  
−
* Johnstown - System hard drive died, heat is too intense.  Reverting to 1.44MB Floppy system for now.  Brought entire switch to bench, squeezed about 40db more sensitivity out of 145.010 MHz radio.  Reprogrammed 446.625 radio to 446.975, has good backup link into Lancaster.  Look at replacing 222 MHz dipole with X3200, use 70cm side for 446.975 and 70cm side of V2000 for something possibly up to Richwood or out to Pataskala in the 438-442 MHz range. 
+
* Columbus/Lincoln Tower - Parking for now
  
−
* Lancaster/Firestation #1 - Everything online, paths north are marginal, hoping more systems come online south of the city.
+
* Johnstown - Online, replaced computer with 1U compaq server, seems to hold up in heat better.
  
−
* Lancaster/FMC - Replaced 145.530 radio with identical radio, power output clipped to 5w due to interference with LFARC 2m club repeater at same site.  V2000 now at 70ft on tower, good path into Logan on 145.530.  APRS radio replaced, gating traffic as expected.  Possibly add some more APRS objects to display packet BBS, RMS station and Echolink systems.
+
* Lancaster/Firestation #1 - Online
  
−
* Lancaster/WW Hill - Everything is on the air, replaced APRS radio with 70-1340B running 10w, still bleeding into county VHF repeater.  John is going to take a notch filter onsite to try and remedy.  Packet switch has stabilized since replacing defective MFJ-1270C that was on channel D/233.660 MHz.
+
* Lancaster/FMC - Online, installed Polyphaser on V2000, grounded packet and echolink computers.
  
−
* Pataskala - Contact W8ALC to see if he has interest in hosting additional systems.
+
* Lancaster/WW Hill - Online, installed Polyphaser on V2000
  
−
* Mechanicsburg - Constructed 6 port polling cable and handed off to Rick.  Need to install small 433 MHz antenna to point at Mutual and end mount 11 element beam pointed to Richwood.  Will do RF tests from Richwood to see which provides a better signal, lower beam or higher vertical on 70cm.  Extra port available on polling cable for 222 MHz, no specific need yet identified.
+
* Mechanicsburg - Offline, cronic computer trouble.  Have replacement to Rick.  Waiting installation.  Need to install small antenna in 433 MHz range to link Mechanicsburg to Mutual
  
−
* Mutual - V2000 is in the air.  Anticipating link to Mechanicsburg in the 433-434 MHz range.  Will put 2m port on 145.770 MHz to test RF path to Batavia (K8YOJ-7 is the local KaNode on site).  Also program radio with 144.93, 145.01, 145.03, 145.05.
+
* Mutual - Offline, wiring issue, waiting to hear from Rick.
  
−
* Richwood - 2 of 3 antennas are installed, feedlines run.  Need to install one additional mast to support last 2m antenna (F23) for APRS.  Cabinet is finished. Radios, TNCs and computer is ready.  Going to need help getting the cabinet up there.
+
* Richwood - Online
  
−
* Springfield - Looking at possible alternate location.  A tower is already up, but there is a condo association to contend with.  There is concern of attracting too much attention.  Possibly get small Diamond dual band antenna (X-50, painting gray/blue and installing in the middle of the night).  Tentative plan a 2m user port and 70cm link back to Mutual in the 445-447 MHz range.
+
* Springfield - Online
  
−
* West Liberty - Open invite to install gear once move in is completed.  Should have a fair path to Mutual.  Possibly use 70cm in 438-441 range or 223.40-223.70. 
+
* West Liberty - On hold
  
−
* Worthington/CMHSW2 - Created 433.050 Link to CMHSW3
+
* Worthington/CMHSW2 - Online, recently added 3.585 USB WINMOR port.  Ideally want to install end fed half wave for 30m and 80m to help reduce crosstalk.
  
−
* Worthington/CMHSW3 - Created 433.050 Link to CMHSW2
+
* Worthington/CMHSW3 - Offline, hopefully pending move
  
−
* Upper Sandusky - Get in contact with station engineer.  See what facilities are available.  Reach out to local club to see if any sponsorship can be gained (Mainly antennas, feedline and power supplies).  Ideally would like to link to Richwood, possibly Mechanicsburg to the south then Findlay and Tiffin to the north.
+
* Upper Sandusky - On hold, Richwood side is now online.  Get in contact with station engineer.  See what facilities are available.  Reach out to local club to see if any sponsorship can be gained (Mainly antennas, feedline and power supplies).  Ideally would like to link to Richwood, possibly Mechanicsburg to the south then Findlay and Tiffin to the north.

Revision as of 20:58, 10 October 2011

Here is a list of things we are collectively working on.

Purchase

  • Acquire/split up power supplies at CMHSW2, CMHSW3, CMHSW4, #RCHWD to handle higher load from Midland LMR Radios
  • Acquire large spool (1000ft) of RG-213 and PL-259 Connectors. ***Update 11/08/09*** Secured 3 500ft rolls of LMR400 clone cable. 1st roll is consumed post MECH install.
  • Continue to acquire gear/test equipment for shared workshop. Will need antennas to cover as much HF as possible, 6m, 2m, 222 MHz, 70cm. Spare power supplies, few computers for workstations/web search, eprom burning facilities, packet host to test cables for 4 main interfaces: soundmodem(Linux), DRSI, TNC2, Kantronics 9 pin.
  • Locate portable computer, 20amp switching power supply and appropriate cabling for a portable LMR programming station covering both Syntech I and XTR/Syntech II models.
  • Syntech I programmer. Ordered on 5/5, expected ship on 5/7. ***Update 6/02/09*** Programmer arrived, successfully programming Z-273 and Z-383 modules.
  • Diamond MX-2000 (6m/2m/70cm) Triplexers with pigtails to allow connections to LMR radios.
  • SWR Meter effective up to 1200 MHz for usage for 33cm and 23cm antenna construction. (Diamond SX-1100) ***Update 1/26/10*** Meter purchased

Component orders:

Jameco:

  • DB-25 Metalized Plastic Hood: Jameco #25604 (Qty 50) [Packet Polling Cables]
  • BC547B NPN Transistor: Jameco #254801 (Qty 100) [LMR Preamplifier Circuits]
  • 220uF 16V, Electrolytic, Radial Capacitors: Jameco #198872 (Qty 100) [LMR Preamplifier Circuits]
  • 470k 1/2w Resistor: Jameco #662151 (Qty 100) [LMR Preamplfier Circuits]
  • 1.25x.25" Inline Fuse Holder: Jameco# 108792 (Qty. 50) [LMR Power Cables]
  • Precidion Voltage Regulator/Linear UA723CN : Jameco# 1129906 (Qty 10) [Astron Rebuilds]
    (BACKORDERED)

Mouser:

  • Minifit Jr. 10 conductor receptical housing: Mouser# 538-39-01-2105 (Qty 25)


  • 500 pF Ceramic Disc Capacitor: Mouser# 562R10TST50 (Qty 10) - equal number to UA723CN Regulators [Astron Rebuilds]
  • Bipolar Transistor 2N3771: Mouser# 511-2N3771 (Qty 40) - Replacements for Astron Power Supplies [Astron Rebuilds]
  • .093 Molex Pin Extractor: Mouser# 538-11-03-0006 (Qty 2) [LMR Power Cables]
  • 3v Lithium Battery for MFJ-1270b/c, 1274, 1289: Mouser# 639-CR2430-P22 (Qty 10) [TNC Maintenance]
  • Audio Bridge Amplifier TDA7240A: Mouser# 511-TDA7240AH (Qty 5) [XTR Maintenence/Repair]
  • .140 In diameter pin plugs: Mouser# 571-350391-1 (Qty 100) [Syntech I High Power Connectors]
  • Universal Mate-n-Lock 9 pin connectors: Mouser# 571-14806730 (Qty 25) [Syntech I High Power Connectors]
  • Minifit Jr. Connector female pins .143": Mouser# 538-39-00-0078 (Qty 200) [Mini XTR (8ch) Power Connectors]

Digikey:

  • 2 Position .140MATE-N-LOK power connector: Digikey# A25469-ND (Qty 20) [XTR High Power Connectors]
  • .140 In diameter female plugs: Digikey# A25461CT-ND (Qty 60) [XTR High Power Connectors]
  • .140 In diameter pin extraction tool: DigiKey# A25474-ND (Qty 1) [XTR/Syntech I High Power Connector Maintenance]

Reference:

Jameco:

  • 1.25x.25" Inline Fuse Holder: Jameco# 108792 (Qty. 50) [LMR Power Cables]
  • 1.25x.25" Fast Blow Fuses: Jameco# 1769170 (Qty 100) [LMR Power Cables]
  • Minifit Jr. 10 conductor receptical housing: Jameco# 880714 (Qty 40) [Mini XTR (8ch) Power Connectors]
  • 34 Pin connector crimp tool: Jameco# 73252 (Qty 1) [Syntech I and XTR trunk mount cable construction]
  • 34 Pin polarized connectors: Jameco# 32644 (Qty 20) [Syntech I and XTR trunk mount cable construction]
  • 34 Pin gray ribbon cable - 100ft: Jameco# 644050 (Qty 1) [Syntech I and XTR trunk mount cable construction]
  • 12 Pin Molex Accessory Connectors (.062"): Jameco# 224549 (Qty 20) [XTR High Power/Syntech II Accessory Connectors]
  • .062" Male Pins: Jameco# 224565 (Qty 100) [XTR High Power/Syntech II Accessory Connectors]
  • .062" Pin Extractor: Jameco# 142156 (Qty 2) [XTR High Power/Syntech Accessory Connector Maintenance]
  • DB-25 Male Connector: Jameco #38789 (Qty 50) [Packet Polling Cables]
  • DB-25 Metalized Plastic Hood: Jameco #25604 (Qty 50) [Packet Polling Cables]
  • DB-9 Female Connector: Jameco #15771 (Qty 10) [SVXLink Interface Cables]
  • Digital Multimeter, Fluke-115: Jameco #1537328 (Qty 1) [General Use]
  • Connector Accessories Mini-Fit JR Extraction Tool: Jameco #1961541 (Qty 1) [Mini XTR (8ch) Power Connector Maintenance]
  • Molex .093" & .062" Crimp Tool: Jameco #227491 (Qty 2) [Syntech I and XTR Accessory Connector Maintenance]
  • Molex .093" Female Crimp connector: Jameco #224231 (Qty 100) [Syntech I and XTR Accessory Connector Maintenance]
  • 9 Pin Molex Male connector .093": Jameco# 224119 [XTR/Syntech I Power connector]
  • 34 Pin polarized connectors: Jameco# 32644 (Qty 20) [Syntech I and XTR trunk mount cable construction]
  • Minifit Jr. 10 conductor receptical housing: Jameco# 880714 (Qty 25) [Mini XTR (8ch) Power Connectors] OUT OF STOCK UNTIL 4/2/2013!
  • Minifit Jr. Female connectors: Jameco# 304733 (Qty 200) [Mini XTR (8ch Power Connectors]
  • DB-25 Male Solder Cup Style connectors: Jameco# 223010 (Qty 20) [BPQ Polling Cables]
  • DB-25 Metalized Hoods: Jameco# 25604 (Qty 20) [BPQ Polling Cables]
  • Molex .093" Female Crimp connectors: Jameco #224231 (Qty 300) [Syntech I and XTR Accessory Connector Maintenance]
  • Molex .093" Male Crimp connectors: Jameco# 224223 (Qty 600) [Syntech I and XTR Accessory Connector Maintenance]
  • 9 Pin Molex Male connector .093": Jameco# 224119 (Qty 75) [XTR/Syntech I Power connector]
  • 1.25x.25" 20 Amp Fast Blow Fuses: Jameco# 1769137 (Qty 100) [LMR Power Cables]

Build

Develop/Test

Maintenance/Modifications

  • Inventory existing radio and TNC stock. Once inventoried, modify to ham bands. Mark each radio with center frequency and maximum power output. 7/08/10 Radios and TNCs inventory completed, begin modifications/tuning next.

Sites

  • Ashland - Online
  • Columbus/Battelle - Had to be removed due to personel changes at Battelle
  • Columbus/Lincoln Tower - Parking for now
  • Johnstown - Online, replaced computer with 1U compaq server, seems to hold up in heat better.
  • Lancaster/Firestation #1 - Online
  • Lancaster/FMC - Online, installed Polyphaser on V2000, grounded packet and echolink computers.
  • Lancaster/WW Hill - Online, installed Polyphaser on V2000
  • Mechanicsburg - Offline, cronic computer trouble. Have replacement to Rick. Waiting installation. Need to install small antenna in 433 MHz range to link Mechanicsburg to Mutual
  • Mutual - Offline, wiring issue, waiting to hear from Rick.
  • Richwood - Online
  • Springfield - Online
  • West Liberty - On hold
  • Worthington/CMHSW2 - Online, recently added 3.585 USB WINMOR port. Ideally want to install end fed half wave for 30m and 80m to help reduce crosstalk.
  • Worthington/CMHSW3 - Offline, hopefully pending move
  • Upper Sandusky - On hold, Richwood side is now online. Get in contact with station engineer. See what facilities are available. Reach out to local club to see if any sponsorship can be gained (Mainly antennas, feedline and power supplies). Ideally would like to link to Richwood, possibly Mechanicsburg to the south then Findlay and Tiffin to the north.
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