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9Z4RG Trinidad and Tobago flag Trinidad and Tobago

Login is required for additional detail.

QSL: REACT International, Inc.

Email: Login required to view

Ham Member Lookups: 8820

 

Welcome.

 

http://m.broadcastify.com/?feedId=23714 <--- Click Here if using Mobile Device (Android, iPhone).

https://www.broadcastify.com/listen/feed/23714/web <--- Click Here is using a Desktop.

https://db.tt/6sBrOtD9 <--- Click Here to Sign Up for a FREE Dropbox Account.

9Z4RG - Ravindranath Goswami - Trinidad and Tobago

  

9Z4RG

9Z4RG

9Z4RG

K Incices

A Indices

 

 

3-Day Plot: GOES Xray Flux (1 minute data)

6 Hour Plot

GOES Electron Flux (5 minute data)

GOES Magnetometer (1 minute data)

Estimated Planetary K index (3 hour data)

 

 

9Z4RG

Sarahan Dust

9Z4RG

 

http://goswami.co.tt

http://goswami.biz

http://ravindranathgoswami.com/

https://www.broadcastify.com/listen/feed/23714

http://www.inameh.gob.ve/radares/VenMax.gif

http://www.inameh.gob.ve/radares/VenMax.gif

http://flightaware.com/live/airport_status_bigmap.rvt?airport=TTPP

http://www.flightradar24.com/10.61,-61.36/9

http://www.airframes.org/

http://www.marinetraffic.com/ais/

http://shipfinder.co/

http://aprs.fi/

http://www.liveatc.net/flisten.php?mount=hf_car&icao=LiveATC HF

http://www.liveatc.net/flisten.php?mount=hf_atlantic_b&icao=LiveATC HF

http://pskreporter.info/pskmap.html

http://www.ncdxf.org/beacon/beaconschedule.html

http://mag.ncep.noaa.gov/

http://hamcall.net/call/AK4NB

http://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=3321573

http://www.qrz.com/db/9Z4RG

http://hamdata.com/getcall.html?callsign=AK4NB

http://aprs.fi/info/a/9Z4RG

http://qrzcq.com/call/9Z4RG

http://hamqth.com/9z4rg

http://www.hamsphere.com/5_119553_profile.html

http://www.dxwatch.com/qrz/lookup.php?c=9Z4RG

http://www.myhamshack.com/9Z4RG/

http://sipreal.com/sipreal/satellite-fr-ir.html

http://www.ssd.noaa.gov/goes/east/tatl/flash-ir2.html

http://www.weather.com/weather/hurricanecentral/tracker

http://www.accuweather.com/en/hurricane/tracker

http://www.metoffice.gov.tt/radar

http://ttmet.zapto.org/web/aviation/4ppiFull.php

http://www.wunderground.com/wundermap/?lat=9.8&lon=-47.2&zoom=6&rad=0&wxsn=0&svr=0&cams=0&sat=0&riv=0&mm=0&hur=1&hur.wr=0&hur.cod=1&hur.fx=1&hur.obs=1&fire=0&ft=0&sl=0

http://www.weatherforyou.com/reports/index.php?config=&forecast=zandh&pands=ttpp&Submit=Get+Weather

http://atlas.pdc.org/atlas/

http://skyvector.com/

http://weather.msfc.nasa.gov/GOES/goeseasthurrir.html

http://www.rainwise.net/weather/rgoswami

http://www.wunderground.com/global/stations/78970.html?sp=IPORTOFS3

http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=IPORTOFS3

http://www.wunderground.com/weatherstation/stickers.asp?ID=IPORTOFS3&freq=3.0&units=metric&lang=EN

http://preview.wunderground.com/personal-weather-station/dashboard?ID=IPORTOFS3

http://www.wunderground.com/swf/Rapid_Fire.swf?station=IPORTOFS3

http://www.awekas.at/en/instrument.php?id=11172

http://www.pwsweather.com/obs/RGOSWAMI.html

http://www.smartcitizen.me/devices/view/481

http://www.iris.edu/ieb/index.html?format=text&nodata=404&starttime=1970-01-01&endtime=2025-01-01&minmag=0&maxmag=10&mindepth=0&maxdepth=900&orderby=time-desc&limit=200&maxlat=81.86&minlat=-68.82&maxlon=180.00&minlon=-180.00&pbl=1&zm=2&mt=ter

http://www.emsc-csem.org/Earthquake/

http://www.funvisis.gob.ve/

http://earthquake.usgs.gov/monitoring/operations/heliplots_gsn.php

http://190.213.2.110:8081/eoc7/default.aspx?organizationname=EOC%20Professional&lcid=11273

https://world.waze.com/livemap/?lon=-61.522617858886846&lat=10.672113765065147

http://nj6n.com/dplusmon/

https://w4aes.dstargateway.org/status.html

http://hf.dstar-relay.net/

http://www.voacap.com/prediction.html

http://www.repeaterbook.com/repeaters/echolink/view_all.php?type=users#sthash.qwXKZ0PQ.dpbs

https://hose.brandmeister.network/

 

EMERGENCY CONTACT NUMBERS

ODPM

511
868-640-1285

TEMA

211

GMRTT

811

CDEMA

SAT Phone
8816 315 25214
8816 315 25216

24 Hr 249-425-0386

 

HAM RADIO FREQUENCIES

Kindly drop me an e-mail at the address above with any corrections/additions.  Thank you.

Specific Frequencies ams Max RF Output Assigned to 9Z4/9Y4 - Primary, Secondary

HF
1.800 MHz - 2.000 MHz  1.5KW (160m) [night]
3.500 MHz - 4.000 MHz  1.5KW (80 m)  [night and local day]
5.250 MHz - 5.450 MHz  1.5KW (60 m)
7.000 MHz - 7.300 MHz  1.5KW (40 m)  [night and local day]
10.100 MHz - 10.150 MHz  1.5KW (30 m)
14.000 MHz - 14.350 MHz  1.5KW (20 m) [worldwide day and night]
18.068 MHz - 18.168 MHz  1.5KW (17 m) [worldwide day and night]
21.000 MHz - 21.450 MHz  1.5KW (15 m) [primarily day]
24.890 MHz - 24.990 MHz  1.5KW (12 m) [primarily day]
28.000 MHz - 29.700 MHz  1.5KW (10 m) [day during sunspot highs]

VHF
50.000 MHz - 54.000 MHz  100W (6 m) [local to worldwide]
144.000 MHz - 148.000 MHz  100W (2 m)
222.000 MHz - 225.000 MHz  100W (1.25cm)

UHF
420 MHz - 430 MHz (Secondary) (70 cm)
430 MHz - 440 MHz (70 cm)
440 MHz - 450 MHz (Secondary) (70 cm)
902 MHz - 928 MHz (33 cm)
1240 MHz - 1300 MHz (23 cm)
2300 MHz - 2450 MHz 
3300 MHz - 3500 MHz
5650 MHz - 5925 MHz
10 GHz - 10.500 GHz
24 GHz - 24.250 GHz
47 GHz - 47.200 GHz

HF [NETS]
Note: Amateur Radio Spectrum and allocated Frequencies are for Licensed HAMs ONLY.

2.182 MHz USB Marine Emergency {Non HAM}

2.527 MHz USB Marine Weather Broadcase {Non HAM}

3.696 MHz LSB Carolyn Wardle Weather Net [Daily @ 7:20 AM (1120 UTC)]

3.775 MHz LSB JARA Emergency

3.805 MHz CW Amateur Radio Society of Barbados CW Net [Sunday @ 8:00 AM (1200 UTC)]

3.815 MHz LSB Caribbean Emergency & Weather Net [Daily @ 6:30 AM (1030 UTC) & @ 6:30 PM (2230 UTC)]

3.820 MHz LSB Dominica Emergency Net

3.828 MHz USB Ham Radio Talkshop Net

3.930 MHz LSB Puerto Rico Weather Net [Daily at 7:10 AM (1110 UTC)]

5.343 MHz USB [Tuesday, Thursday, Sunday @ 8:00 PM (0000 UTC)]

5.357 MHz USB North America ALE-SSB (Automatic Link Establishment) Net [Sunday @ 7:47 PM (2247 UTC)]

5.371.5 MHz USB (Alternate) North America ALE-SSB (Automatic Link Establishment) Net [Sunday @ 7:47 PM (2247 UTC)]

6.977.5 MHz USB Jamaica Met Service {Non HAM}

6.998 MHz USB Internation Red Cross {Non HAM}

7.065/7.133 MHz LSB TTARL [Tuesday, Thursday, Sunday @ 8:00/8:30 PM (0000 0030 UTC)]

7.086 MHz LSB Caribbean Maritime Mobile Net [Daily @ 8:00-8:15AM (1200-1215 UTC)]

7.110 MHz LSB Cuba National Traffic Net

7.145 MHz LSB St. Kitts and Nevis Net [Sunday @ 11:30 AM (1530 UTC)]

7.150/7.153 MHz LSB JARA Jamaica Myers Net [Sunday @ 9:00/10:00 AM (1300/1400 UTC)] 

7.155/7.205 MHz LSB St.Vincent Hairoun Net [Sunday @ 10:00 AM (1400 UTC)]

7.159 MHz LSB TTARS Humming Bird Net Trinidad [Daily @ 4:00 PM (2000 UTC) plus additional on Sunday 9:00 AM (1300 UTC) 2 hrs duration]

7.159 MHz CW TTARS CW Net Trinidad [Sunday @ 8:00 AM (1200 UTC)]

7.165 MHz LSB Antilles Weather Net

7.176 MHz LSB Grenada Nutmeg Net [Sunday @ 9:00 AM (1300 UTC)]

7.185 MHz LSB Antilles Weather Net

7.185 MHz LSB Barbados Net[Sunday @ 9:00 AM (1300 UTC)]

7.188 MHz LSB Friendly Net [Daily @ 6:00/7:00 AM (1000/1100 UTC)]

7.195 MHz LSB Caribbean Ham Talkshop Net [Daily @ 6:30/7:00 AM (1030/1100 UTC)]

7.200 MHz LSB St. Lucia Net [Sunday @ 8:00 AM (1200 UTC)]

7.210 MHz LSB Domnica Emergency Net

7.241 MHz LSB Caribbean Maritime Mobile Net [Daily @  7:00-800AM (1100-1200UTC)]

7.453.5 MHz USB CDEMA Alternate {Non HAM}

7.850 MHz USB CDEMA {Non HAM}

8.294 MHz LSB Marine Weather {Non HAM}

10.151 MHz LSB APRS *

13.998 MHz USB International Red Cross {Non HAM}

14.185 MHz USB Caribbean Emergency Net

14.214 MHz USB Caribbean Ham Radio Talkshop Net

14.265 MHz USB SATERN

14.267.5 MHz USB Caribbean Ragchew [Daily @ 8:30 AM (1230 UTC]

14.283 MHz USB Caribus Net [Daily @ 7:30 AM (1130 UTC)]

14.290 MHz USB ARRL W1AW Bulletins

14.300 MHz USB Maritime Mobile Service Net/Intercontinental [Daily @ 12:00 PM EST to 10:00P PM EST]

14.3030 MHz USB International Assistance and Traffic Net

14.310 MHz USB Puerto Rico Tourism Net [Daily @ 12:00 PM (1600 UTC)]

14.313 MHz USB Maritime and Seafarers Net

14.325 MHz USB Miami Hurricane Centre WX4NHC Hurricane Watch Net

14.347 MHz USB Spider Web Net [Daily @ 12:30-13:30 UTC]

14.415 MHz USB CDEMA East West {Non HAM}

50.0147 MHz Beacon 9Y4AT

50.110 MHz USB Calling Frequency

DSTAR HF NETS

Monitor REF030C for coordination and changes to sequence and frequencies used.
DSTAR HF Voice Schedule
Saturday PM 8:00 EDT (0000 UTC)
Sunday AM 8:00 EDT (1200 UTC)
Sunday PM 8:00 EDT (0000 UTC)
Check USB/LSB on freq to make sure the freq is clear.
 
8:00 - 8:10 6 mtrs 51.180 (50.210) DV for 10 mins
8:10 - 8:20 10 mtrs 29.480 (28.570) DV for 10 mins
8:20 - 8:30 12 mtrs 24.938 DV for 10 mins
8:30 - 8:40 15 mtrs 21.380 DV for 10 mins
8:40 - 8:50 17 mtrs 18.148 DV for 10 mins
8:50 - 9:00 20 mtrs 14.320 (14.335) DV for 10 mins
9:00 - 9:10 40 mtrs 7.280 (7.285) DV for 10 mins
9:10 - 9:20 75 mtrs 3.880 DV for 10 mins
 
C4FM WIRES-X FUSION NETS
 
The International Wires-X Fusion Net
Satuday @ 9PM EST (0100 UTC)
Room ---America-Link- Room# 21080
FCS0002-90
 
DMR NETS
 
BrandMeister Network Talkgroup TG 374 Trinidad / Tobago
 
BrandMeister Network Talkgroup TG 3740 REACT - Tuesday at 9PM EST
 
BrandMeister Network Talkgroup TG 3741 Woodbrook
 
BrandMeister Network Talkgroup TG 3742 Port of Spain
 
BrandMeister Network Talkgroup TG 3743 San Fernando
 
BrandMeister Network Talkgroup TG 3744 Tobago
 
DMR-DMARC Worldwide Net - Worldwide Talkgroup TG1 - Saturdays at 9PM AST (1700 UTC)
 
ECHOLINK / IRLP NETS
 
VoIP Skywarn Hurricane Net - Conference "WX-TALK" node# 7203 and IRLP reflector 9219
Saturday @ 0000 UTC

The WorldWide REACT Information Net takes place every Tuesday Night at 9:00 pm Eastern Time on Echolink *REACT* Conference ServerNode 109779 and Echolink *DCF-ARC* Conference Server Node 336037 and IRLP9257 as well as the 9Z4KDS 147.975 repeater via the 9Z4RG-R repeater node 3384.  The Net is also connected to the *DX-LINK* Confreence Node that brings in AllStar, D-STAR, Wires-X and DMR.  All amateurs are welcome to check in.

The Red Cross Net takes followed by the Disaster Communicators Forum Net place on Sunday Nighs at 9:00 pm Eastern Time is on Echolink DCF-ARC Conference Server Node 336037 and IRLP9257.

The CCARS Repeater Net takes place on the 2nd and 3rd and 4th Monday Nights is  on 147.045 Mhz + and Tone 127.3 NA4CC CCARS Repeater and Echolink NA4CC-R or Node706882

VHF FREQUENCIES [NETS] - 2m - 144-148 MHz
Note: Amateur Radio Spectrum and allocated Frequencies are for Licensed HAMs ONLY.

144.390 MHz APRS

144.490 MHz ISS Voice Uplink

144.520 MHz -600 KHz [TTARL D-STAR]

144.900 MHz Repeater Input Experimental Portable Emergency Repeater 9Z4RG

144.930 Packet Radio Trinidad (Secondary)

145.010 MHz Packet Radio Trinidad (Primary)

145.310 MHz -600 KHz Barbados Secondary *

145.330 MHz - 600 KHz PL 131.8 Hz Experimental 9Z4RG

145.500 MHz SSTV Primary

145.510 MHz DMR Simplex TGID 99 TS 1 CC 1

145.600 MHz SSTV Secondary

145.625 MHz -600 KHz Grenada *

145.675 MHz -600 KHz PL 156.7 Hz IRLP Trindad (9Y4AT North-MtStBenedict)

145.790 MHz DMR Simplex TGID 99 TS 1 CC 1

145.800 MHz ISS Voice Downlink/FM SSTV

145.825 MHz ISS/PCSAT/YBOX-1, PSAT Packet Uplink/Downlink AX.25 1200 Bd AFSK Packet Radio

145.940 MHz -600 KHz St. Lucia *

145.990 MHz Tone 67.0 Hz ISS Repeater Uplink

146.205 MHz +600 KHz Trinidad (South-SFdo)

146.400 MHz Simplex - IRLP Node 7767 TTARL

146.415 MHz Simplex - TTARL

146.430 MHz Simplex - TTARL

146.520 MHz Simplex - HAM Calling Frequency

146.550 MHz Simplex - HAM Chat Frequency

146.700 MHz -600 KHz Jamaica *

146.760 MHz -600 KHz Grenada

146.760 MHz -600 KHz St Maarten *

146.780 MHz -600 Khz Trinidad D-Star (Central-Tortuga)

146.790 MHz -600 KHz St. Lucia *

146.820 MHz -600 KHz St. Kitts *

146.850 MHz -600 KHz St. Martin *

146.850 MHz -600 KHz St Vincent *

146.880 MHz -600 KHz Jamaica *

146.910 MHz -600 KHz Barbados

146.940 MHz -600 KHz Trinidad (Central-Tortuga) [TTARS Net - Sundays @ 8:00 PM (0000 UTC) 1 hr]

147.600 MHz -600 KHz Experimental 9Z4RG

147.600 MHz -600 KHz Jamaica

147.650 (147.645) MHz -600 KHz 9Z4JDB (South)

147.705 MHz -600 KHz Tone 127.3 Hz [TTARL Net - Wednesday @ 8:00 PM (0000 UTC)]

147.760 MHz -600 KHz Tobago (West-French Fort)

147.800 MHz -600 KHz ODPM (North)

147.840 MHz -600 KHz Jamaica *

147.850 MHz -600 KHz Tone 131.8 Hz Experimental 9Z4RG

147.900 MHz -3 MHz Experimental Portable Emergency Repeater 9Z4RG

147.930 MHz -600 KHz Trinidad (North-Laventille) [TTARS Net - Sundays @ 8:00 PM (0000 UTC) 1 hr]

147.960 MHz -600 KHz Jamaica *

147.975 MHz -600 KHz Tone 110.9 Hz Trinidad (South-Siparia)
 
147.990 MHz -600 KHz Tone 233.6 Hz [TTARL]

1.25 m - 220-225 MHz
223.850 MHz SSTV
 
UHF FREQUENCIES [NETS] - 70 cm - 420-450 MHz
Note: Amateur Radio Spectrum and allocated Frequencies are for Licensed HAMs ONLY.
 
430.950 MHz SSTV
 
433.450 MHz DMR Simplex TGID 99 TS 1 CC 1
 
437.560 MHz  to 540 Doppler Shift ISS Packet Uplink/Downlink AX.25 1200 Bd AFSK Packet Radio

437.800 MHz ISS Voice Uplink
 
441.000 MHz DMR Simplex TGID 99 TS 1 CC 1
 
442.500 MHz +5 MHz D-Star (9Y4SRR) - added 2013-11-29
 
442.950 MHz +5 MHz Tone 103.5 Trinidad (South-9Z4KDS) - added 2013-10-20

444.445 MHz +5 MHz Experimental 9Z4RG

444.700 MHz +5MHz PL 156.7 Hz linked with 145.675 MHz (9Y4AT North-MtStBenedict)

444.775 MHz +5 MHz D-Star (9Y4SRR) - added 2013-11-29
 
445.295 MHz APRS *
 
445.925 MHz ?
 
446.075 MHz DMR Simplex TGID 99 TS 1 CC 1
 
446.500 MHz DMR Simplex TGID 99 TS 1 CC 1
 
1296 MHz Simplex - TTARL
 
 
FRS & GMRS FREQUENCIES
 
FRS Name GMRS Name Repeater Tx Repeater Rx Power FRS Power GMRS
  GMRS1 462.550 467.550   50 W
  GMRS2 462.575 467.575   50 W
  GMRS3 462.600 467.600   50 W
  GMRS4 462.625 467.625   50 W
  GMRS5 462.650 467.650   50 W
  GMRS6 462.675 467.675   50 W
  GMRS7 462.700 467.700   50 W
  GMRS8 462.725 467.725   50 W
FRS1  GMRS9 462.5625 *simplex* 500 mW  5W
FRS2 GMRS10 462.5875 *simplex* 500 mW  5W
FRS3  GMRS11 462.6125 *simplex* 500 mW  5W
FRS4  GMRS12 462.6375 *simplex* 500 mW  5W
FRS5 GMRS13 462.6625 *simplex* 500 mW  5W
FRS6 GMRS14 462.6875 *simplex* 500 mW  5W
FRS7 GMRS15 462.7125 *simplex* 500 mW  5W
FRS8   467.5625 *simplex* 500 mW   
FRS9   467.5875 *simplex* 500 mW   
FRS10   467.6125 *simplex* 500 mW   
FRS11   467.6375 *simplex* 500 mW   
FRS12   467.6625 *simplex* 500 mW   
FRS13   467.6875 *simplex* 500 mW   
FRS14   467.7125 *simplex* 500 mW   

VHF Air - TTPP TTCP

Facility Frequency
Crown Point 118.400
North Apron 121.750
Piarco Approach 119.000
Piarco Ground 121.900
Piarco Tower 118.100
Radar Centre 123.700
Radar Centre 125.400

 

Facility Frequency
Piarco Apron 121.750
Piarco Ground 121.900
Piarco Tower 118.100
Facility Frequency
Piarco Approach 119.000
Piarco Approach 119.550
Piarco Approach (backup) 124.000
Facility Frequency
Piarco Center 123.700
Piarco Center (Oceanic) 126.500
Piarco Center (South Sector) 125.400
Piarco Center Oceanic (Backup) 133.100

 

WEATHER SATELLITE RECEPTION - APT

NOAA

  • NOAA 15 – 137.6200 MHz
  • NOAA 18 – 137.9125 MHz
  • NOAA 19 – 137.1000 MHz
RUSSIAN
  • Meteor 2-21 – 137.850 MHz or 137.4000 MHz
  • Meteor 3.5 – 137.3000 MHz
  • Meteor 3M – No APT
  • RESURS 01-4 – 137.4000 MHz
  • OKEAN 4 – 137.4000 MHz
  • SICH 1 – 137.4000 MHz
 
Band Frequency Transmission type IARU Region
80 meters 3730 kHz wideband analog SSTV 1
3733 kHz digital SSTV 1
3845 kHz SSTV 2
40 meters 7058 kHz digital SSTV 1
7170 kHz wideband analog  
30 meters 10132 kHz narrowband digital SSTV (MP73-N) 2
10144 kHz narrowband digital SSTV (MP73-N) 1
20 meters 14227 - 14230 kHz analog SSTV  
14233 kHz digital SSTV  
15 meters 21340 kHz SSTV calling freq.  
10 meters 28680 kHz SSTV calling freq.  
6 meters 50.510 MHz SSTV (AFSK)  
2 meters 144.500 MHz SSTV calling freq.  
Network Routing Description AMPRNet Portal
44.164.129.0/24 BGP HSMM AMPR Broadband Hamnet 44 Net
Coax Cable Loss is Frequency Dependent - The Higher your Frequency the More Important your Coax
Loss Is Measured in DB per 100 feet
Frequency / Band Times
LMR-240
Times
LMR-400
Andrew
CNT-400
RG-8/U
RG-213/U
7 Mhz (40 meters) 0.64 0.33 0.33 0.49
14 Mhz (20 meters) 0.91 0.46 0.46 0.70
28 Mhz (10 meters & CB) 1.29 0.65 0.65 1.01
50 Mhz (6 meters) 1.73 0.88 0.88 1.36
144 Mhz (VHF) 2.95 1.50 1.50 2.38
220 Mhz (VHF) 3.66 1.87 1.87 3.00
450 Mhz (UHF) 5.28 2.71 2.71 4.46
900 Mhz (UHF) 7.56 3.90 3.90 6.64
1.5 Ghz (MW) 9.87 5.12 5.12 8.99
2.5 Ghz (MW, WiFi) 12.93 6.76 6.76 12.32
5.8 Ghz (MW, WiFi) 20.35 10.8 10.8 21.28
 

Coaxial Cable Power Handling
 
Power Capacity In Watts By MHz 30 50 150 220 450 900 1500 2000
Times Microwave LMR-240® 1490 1150 660 540 380 260 200 170
Times Microwave LMR-400® 2100 1700 1000 830 550 380 290 250
 

 

 

Metric prefixes in everyday use
Text Symbol Factor
tera T 1000000000000
giga G 1000000000
mega M 1000000
kilo k 1000
hecto h 100
deca da 10
(none) (none) 1
deci d 0.1
centi c 0.01
milli m 0.001
micro μ 0.000001
nano n 0.000000001
pico p 0.000000000001

 

 

 

Metric prefixes
Prefix 1000m 10n Decimal English word Since
name symbol short scale long scale
yotta Y  10008  1024 1000000000000000000000000  septillion  quadrillion 1991
zetta Z  10007  1021 1000000000000000000000  sextillion  thousand trillion 1991
exa E  10006  1018 1000000000000000000  quintillion  trillion 1975
peta P  10005  1015 1000000000000000  quadrillion  thousand billion 1975
tera T  10004  1012 1000000000000  trillion  billion 1960
giga G  10003  109 1000000000  billion  thousand million 1960
mega M  10002  106 1000000             million 1960
kilo k  10001  103 1000             thousand 1795
hecto h  10002/3  102 100             hundred 1795
deca da  10001/3  101 10             ten 1795
   10000  100 1             one
deci d  1000−1/3  10−1 0.1             tenth 1795
centi c  1000−2/3   10−2 0.01             hundredth 1795
milli m  1000−1  10−3 0.001             thousandth 1795
micro μ  1000−2  10−6 0.000001             millionth 1960
nano n  1000−3  10−9 0.000000001  billionth  thousand millionth 1960
pico p  1000−4  10−12 0.000000000001  trillionth  billionth 1960
femto f  1000−5  10−15 0.000000000000001  quadrillionth  thousand billionth 1964
atto a  1000−6  10−18 0.000000000000000001  quintillionth  trillionth 1964
zepto z  1000−7  10−21 0.000000000000000000001  sextillionth  thousand trillionth 1991
yocto y  1000−8  10−24  0.000000000000000000000001  septillionth  quadrillionth  1991
 

 

 

TABLE OF SHORTWAVE BANDS

Meter Band

Frequency (kHz)

Reception Times

120

2300-2500

Infrequent reception

90

3200-3400

Winter nights

75

3900-4000

Winter nights (Also Amateur Radio)

60

4750-5060

Tropical stations, winter nights

49

5900-6200

Best at night

41

7100-7350

Best at night (Also Amateur Radio)

31

9400-10000

Best at night, some day

25

11600-12160

Best at night, some day

22

13570-13870

Best day, some night

19

15100-15800

Best day, some night

16

17500-17900

Best day, some night

15

18900-19020

Best day

13

21450-21750

Best day

11

25600-26100

Best day

 

 

APRS SSID
-0 Home Station, Home Station running IGate.
-1 Network Digipeater, Wx Digipeater
-2 Digipeater [#2 or] on 70CM
-3 Digipeater [#3]
-4 HF to VHF Gateway
-5 IGate (Not home station)
-6 Satellite or special operations (usually mobiles/portables)
-7 Kenwood D7 HH
-8 Secondardy mobile/portable (Maritime applications USA, maybe 802.11 in the future)
-9 Primary Mobiles
-10 Internet only stations with no RF equipment
-11 APRS Touch Tone Via EchoLink systems (and the occasional Balloons)
-12 Portable Units such as Laptops etc.
-14 Legacy standard for Truckers (USA)
-15 HF Mobiles

DTMF Function List

 

Allstar Link Node 43596 -- 9Z4RG -- Woodbrook Port-of-Spain, Woodbrook, Port-of-Spain, Trinidad And Tobago

 
*1  =>   Link Disconnect
*2  =>   Link Connect (Monitor Only)
*3  =>   Link Connect
*4  =>   Remote Comand
*70  =>   Link Status
*71  =>   Disconnect All Links
*72  =>   Last Node To Key
*73  =>   Full Link Status
*74  =>   Reconnect Links
*5  =>   DTMF Shortcuts
*75  =>   Link Connect (Local Monitor Only)
*80  =>   System Info
*81  =>   Time
*980  =>   App_rpt Version
*99  =>   Phone PTT

 

IP Address: sip.allstarlink.org (67.215.233.178)
Username: 1
Password: allstar
codec: G711 Ulaw
DTMF: RFC2833 (If applicable)

 

Transmission Line Losses

100 watt transmitter, 100 feet of feedline and a 10:1 standing wave ratio.
  Lost power  
Feedline Type 3.8 MHz  28 MHz   
     
RG-58 Coaxial Cable 44.6 watts   70.6 watts
RG-8 Coaxial Cable  21.7 watts   43.7 watts
14 Gauge Window wire   9.2 watts 23.8 watts
14 Gauge Window wire (wet)  29.4 watts 75 watts
600 Ohm Ladder Line  4.2 watts   10.7 watts

 

 

AWG Diameter Diameter Square Resistance Current Load Ratings (amps)1)
(mm) (in) (mm2) (ohm/1000m) Single Core Multicore
        up to 3 cores 4 - 6 cores 7 - 24 cores 25 - 42 cores 43 and above
40 0.08 . 0.005 3420            
39 0.09 . 0.0064 2700            
38 0.1 0.004 0.0078 2190            
37 0.11 0.0045 0.0095 1810            
36 0.13 0.005 0.013 1300            
35 0.14 0.0056 0.015 1120            
34 0.16 0.0063 0.02 844            
33 0.18 0.0071 0.026 676            
32 0.2 0.008 0.031 547            
30 0.25 0.01 0.049 351            
28 0.33 0.013 0.08 232            
27 0.36 0.014 0.096 178            
26 0.41 0.016 0.13 137            
25 0.45 0.018 0.16 108            
24 0.51 0.02 0.2 87.5 3.5 2 1.6 1.4 1.2 1
22 0.64 0.025 0.33 51.7 5 3 2.4 2.1 1.8 1.5
20 0.81 0.032 0.5 34.1 6 5 4 3.5 3 2.5
18 1.02 0.04 0.82 21.9 9.5 7 5.6 4.9 4.2 3.5
16 1.29 0.051 1.3 13 20 10 8 7 6 5
14 1.63 0.064 2 8.54 24 (20) 15 12 10.5 9 7.5
13 1.8 0.072 2.6 6.76            
12 2.05 0.081 3.3 5.4 34 (25) 20 16 14 12 10
10 2.59 0.1 5.26 3.4 52 (30) 30 24 21 18 15
8 3.25 0.13 8.3 2.2 75 (40) 40 32 28 24 20
6 4.115 0.17 13.3 1.5 95 (55) 55 44 38 33 27
4 5.189 0.2 21.15 0.8 120 70 56 49 42 35
3     26.65   154 80 64 56 48 40
2 6.543 0.26 33.62 0.5 170 (95) 95 76 66 57 57
1 7.348 0.29 42.41 0.4 180 110 88 77 66 55
0 (1/0) 8.252 0.33 53.49 0.31 200 (125)          
00 (2/0) 9.266 0.37 67.43 0.25 225          
000 (3/0) 10.4 0.41 85.01 0.2 275          
0000 (4/0) 11.684 0.46 107.22 0.16 325          
250     127   345          
300     152   390          
400     178   415          

OTHER

 

BIO

Ravindranath Goswami
Port-of-Spain, Trinidad & Tobago
9Z4RG issued by TATT
AK4NB - Extra Class License - formely KK4CKS
Radio Emergency Associated Communications Team - Trinidad and Tobago
REACT Team 2496 - REACT International, Inc - Region 9
Trinidad and Tobago Amateur Radio Society (TTARS) - IARU Region 2
Amateur Radio Relay League (ARRL)
Radio Society of Great Britain (RSGB)
AmSat
Grid: FK90gp, CQ Zone: 9, ITU Zone: 11, IOTA: SA011
Echolink Nodes: 9Z4RG 9984, 9Z4RG-L 6684, 9Z4RG-R 3384
DMR-ICs/CCS7: 3740002, 3112715
Wires-X: Node ID: 30199 Room ID: 40199
GMRS: WQWR989
QRZ: http://9Z4RG.com
Zello Channels: REACT MEMBERS, REACT TRINIDAD AND TOBAGO

Cool Brands: Icom, Yaesu, Wouxun, TYT, MFJ

Port-of-Spain City Corporation Disaster Management Unit Committee Member (POSCC DMU)
http://www.goswami.biz
http://www.ravindranathgoswami.com/
Zello - TRINIDADANDTOBAGO
Echolink
APRS Digipeater IGate SGate ISS
Allstar HAM Radio Network
Hamsphere (currently inactive)
D-Star - REF 0030C
D-Star over HF
DVAP Raspberry Pi
PSK31 & other Digital Modes
P25, MotoTrbo / DMR BrandMeister DMR-MARC, dPMR, IDAS, Wires-X C4FM via DMRDV DV4MINI UP4DAR
Software Defined Radio (SDR)
ADS-B
AIS
Global Positioning System (GPS)

Other Interests:

Emergency Management & Public Safety and Security
Frequency Spectrum Allocation & Band Plans
FEMA / ICS / NIMS - Incident Command System
Weather Station Observations (Temperature, Barometric Pressure, Humidity, Rainfall Rate, Wind Speed, Wind Direction)
Hurricane Tracking
Seismic / Earthquake Monitoring (Seismometer / Seismograph analysis)
Power Quality Monitoring
Environmental Quality Monitoring
Bitcoin enthusiast
Amateur Astronomy
Photography
Mountain Biking
Tennis


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8030879 Last modified: 2017-04-14 01:35:15, 135153 bytes

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QRZ Logbook Summary for - 9Z4RG
Latest Contacts for 9Z4RG at QRZ.com
dedateband mode grid Country op
KB7CSW 2017-04-27 2m DSTAR DN54ln United States Justin E Holder
VA7WI 2017-04-24 2m FM Canada
9Z4H 2017-04-17 40m SSB FK90ip Trinidad and Tobago Hugh A. Weekes
DD3NJ 2017-04-17 2m DSTAR JO50ca Germany Klaus-Dieter Jones
G4LTM 2017-04-17 2m DSTAR England GM HUDSMITH
I3MKH 2017-04-17 2m DSTAR JN65de Italy MIRKO BOSCOLO
KB0ZSG 2017-04-17 2m DSTAR EM20ja United States CONNIE L BALLANTYNE
9Y4J 2017-04-16 40m SSB FK90fq Trinidad and Tobago JEFF AUSTIN
N2PQS 2017-04-16 2m DIGITALVOICE FN20xr United States JEREMY P GOODIN
9Z4W 2017-04-13 40m SSB FK90ij Trinidad and Tobago Anthony Simon
KG6FIY 2017-04-12 2m DSTAR DM03vv United States Endaf Buckley
8P6RF 2017-04-10 80m SSB Barbados ANDERSON JORDON
9Z4H 2017-04-10 40m SSB FK90ip Trinidad and Tobago Hugh A. Weekes
KC9SIO 2017-04-10 2m DSTAR EN50uc United States STEVEN T REINERS
KA9SRO 2017-04-09 2m DSTAR EN55dv United States SAMUEL DAMOS

Book Totals: 192 qso's   30 confirmed Get a free logbook at QRZ.COM

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