FM101x
- BOOK BY AC6V
For The New Ham
Entering
The World Of VHF/UHF And FM Repeaters
NEW! Check out the Nifty E-Z Guide to EchoLink Operation
AMATEUR RADIO REPEATERS US STATES
K5EHX Repeater Mapping - Wow - see this one
US Repeaters.Com offers Uptodate Repeater Information for Ham Radio Operators. Updated Daily from Submissions sent in by Ham Radio Operators, verified by frequency cordinators. We also do a schedule yearly overhaul of the Repeater List. |
USA REPEATER LISTINGS -- CHECK THIS ONE OUT AND CONTRIBUTE UR UNLISTED REPEATER Via Ham Shack.Com
USA REPEATERS MAPS
-- By ARTSCI Covers All USA States
ARRL
Repeater Guide & TravelPlus for Repeaters CD-ROM
K1IW Amateur Repeater
Websearch -- Search By City or Long/Lat
Interstate Highway Repeater Maps
-- Canada Too -- From VE3AYR
Appalachian Trail 2 Meter Repeater Guide
-- Via By Kathy Bilton
Arizona Repeaters - From
The Arizona Repeater Owners Frequency Coordination Committee
Montana Repeater Map
New York
Repeaters - Covers NYC Metro, Long Island, and all of eastern New York.
New England Repeaters - MA, CT, ME,
RI, VT, NH
Nevada Repeaters - From NARI
Repeaters, Inc
Northern Amateur
Relay Council of California, Inc -
List temporality not available - but u can use their DataBase Search
Northern California Repeaters
-- Santa Clara Valley, Ca aka Silicon Valley
Six Meters - Northern California Repeater List
-- From Keith Beard, WE6R
CALIFORNIA
Mountain
Locations in Southern California With Map! - Where is Mount WayUpDare??
CALIFORNIA
SOUTHERN CALIFORNIA
Southern
California -2m,-6m,-440,-220 --From JPL ARC (Color Coded By Area)
Southern California Repeater List
-- Via TASMASuggested
LA And San Diego FM Repeaters -- With Map, For Use when Traveling in
Southern Cal or Escaping From It -- By Dave AD7DB
Southern California Repeater List
-- California, San Fernando Valley -- By Dave AD7DB
San Diego Area Long Range Inter-Tie
Systems (WIN, CALZONA, CONDOR, MORE)
San Diego IRLP Nodes
San Diego Packet Radio Nodes, BBS's
and DX Packet Cluster Network
220MHz Repeaters - Southern California Repeater List
-- Via 220SMA
Southern
California Open 900MHz FM Voice Repeaters
Six Meters - Southern California
List -- Via N6CRO Page - Courtesy of Paul, KB6MIP
Pacific Crest Trail Repeater Guide
-- From Calif to Oregon -- Scroll to page bottom for clickables -- Via Bill Jeffrey, AA6J
ALL CALIFORNIA
Six Meters - All California Repeater List
-- Via KN6LA
Canada Repeater Guide - Via Ham-Shack.Com
WORLD WIDE REPEATER DIRECTORY
REPEATER TECHNICAL INFORMATION & GUIDELINES
1. Repeaters Owners Mail Reflector Repeater-subscribe@Onelist.com -- No TEXT or subject needed
2. Repeater Mail Reflector repeater-request@jerrys.rogerswave.ca (no subject) subscribe
Repeater Builder's Technical Information Page™ by Kevin Custer W3KKC
Repeater Band Plans -- From SERA
Repeater Useage GuideLines -- From The ARRL
App_rpt/Asterisk allows repeaters and remote bases to be connected using an application running on the Asterisk PBX under Linux. In case link is down, check here.
Lots Of Repeater Building
& Articles -- From The ARRL
VISUAL DISTANCE. A rough rule of thumb is to take the square root of the height in feet and that will give the miles from the antenna to the ground. Repeat for the other antenna and add the number of miles. This can be multiplied by about 1.2 to 1.3 for radio waves. For example if the transmitter antenna is 625 feet high and the receiving antenna is 16 feet high, square root of 625 = 25 miles, square root 16 = 4 miles. Add 25+4 = 29 miles for the visual distance. Then multiply this by 1.3 to get 37.7 miles of radio range. This gives the visual distance. And of course, transmitter power and antenna gain, receiver noise figure and antenna gain enter into it, see links above.
FROM THE INTERNET
The basic equation for path attenuation is Attn. = 36.6 + 20 log F(MHz) + 20 log
d (miles) (in dB).* The log function dilutes the effect of frequency
change, so tripling the frequency from 147 MHz to 441 MHz increases the loss by
20 log 3 ~ 10 dB.
* ITT Handbook, Chapter 28 in most recent editions.
Clarification from Larry W9QR:
With reference to 144 MHz and 440 etc. Path loss in free space is independent of frequency. The free space loss equation has a frequency quantity in it to offset the loss of signal received by an isotropic antenna. An isotropic antenna or a dipole for that matter intercepts 6dB less wavefront energy when the frequency is doubled. There was no increase in path loss. (In free space). Since by definition, all isotropic antennas radiate equally well at all frequencies, there is no need to "crank in" another 6dB to adjust for the transmit antenna when we double the transmit frequency. I have seen that equation referred to as Path Loss between isotropics. That describes it quite well. Most of my work is in the GHz range so I use 96.6+ 20logF (GHz) +20 LogD (Miles). 73, Larry Wheeler
Another rule of thumb is doubling antenna elevation at VHF produces about 6 dB gain.
If
you want to know more how repeaters work technically, duplexers, controllers,
etc -- see URL:
Antomy
Of A Repeater
Also see:
A
Typical Repeater Controller.
Another FM
Tutorial
CROSS
BAND REPEATING AND REMOTE BASE
Cross Band Repeating --
By Ken Larson KJ6RZ
Cross Band Repeating -- From ICOM (if link dead, on iconamerica.com search "Knowledge Base" for
"Cross Band Repeat")
Cross
-- By Christian KC0ARF
Cross -- From Universal Radio
Auxiliary Stations, and "Remote Base" FAQ -- From The ARRL
Difference
between a repeater
and an auxiliary (remote base) station -- By
Gary Hendrickson W3DTN
Also See Mods.dk for your radio brand
Simplex --http://perso.club-internet.fr/f1orl/program/simplex.zip This software is intended to replace the hardware logic of repeaters. With SIMPLEX, repeaters may be quickly implemented with a few connections between the computer sound card and the audio receiver output and microphone transmitter input.It handles simplex repeater, duplex repeater, transponder and mixed mode. It supports classical 1750 Hz tone detection or CCTSS detection to open. It plays any audio service message (beacon, welcome, goodbye, transmit, timerout messages).It repeats communications either on audio detection (vox mode) or carrier detection (if a squelch signal is available).It detects DTMF codes for remote control.It works also as a simple parrot or voice recorder. It runs under Win95/98/NT/2000/XP.
OFFSETS AND TONES
The standard offsets for HF/VHF/UHF/SHF are:
29 MHz 100 kHz (-) |
147 MHz 600 kHz (+) |
1.2 GHz 12 MHz (-) |
50 MHz 500 kHz (-) |
222 MHz 1.6 MHz (-) |
2.4 GHz 20 MHz (-) |
145 MHz 600 kHz (-) |
440 MHz 5.0 MHz (-) ** |
|
146 MHz 600 kHz (+ or -) |
900 MHz 25.0 MHz (-) |
|
** Plus Offset In Some areas - notably Northern California.
When a repeater receives below the
transmit frequency it is termed a minus offset. A repeater that transmits on
147.13 MHz and receives on 147.73 has a plus offset. Repeater input frequencies are given as
either + or - signs to indicate whether the user's transmit frequency is above
or below the repeater transmit frequency.
Repeaters that have outputs in the lower part of
the 146 MHz portion are often plus offsets while those operating in the upper
portion of 146 MHz are minus offsets. See your repeater guides. Most of the new
rigs default to the accepted offsets.
NEW 440 MHz PALOMAR MTN SITE WITH IRLP -- San Diego
IRLP Node Codes and Locations - 1600+ of them - Status listing for all IRLP Node Codes and Locations
EARS club, EchoLink Repeater N6WB-R guidelines
There are now nearly 1600+ repeaters around the world connected by the internet through the internet radio
linking project (IRLP) 24 hours per day 7 days a week. The most remote repeater on the system is on
Antarctica. To call a repeater on the system you just dial a 4 digit DTMF code.
About IRLP - From eHam.net
Official Home of The Internet Radio Linking Project
IRLP Node Codes and Locations - 759+ of em
Typical IRLP Guidelines -- Via the KD4RAA Repeater Group
Yahoo IRLP / EchoLink Interoperability Group
ECHOLINK -- Introduction
ECHOLINK - A PC based Repeater Controller Innovation
ECHOLINK MAP - World Wide Listings
EchoLink Port Forwarding solutions
EchoLink for iPhone, iPad etc.
EchoLink Interface / controller board
Echolink Directory - An aid to amateur radio hobbyist who travel from city to city and country to country to locate Echolink stations
EchoMac - EchoLink software for Mac OS X
Free EchoLink for iPod,iPhone, iPad
Nifty E-Z Guide to EchoLink Operation
VA3TO EchoLink Interface Board
NOTE: Check out the EchoLink Swap Net Every Tuesday 8 PM Eastern, Node 7515. If this node is full go to Node 162315 - Getting very popular! After Swapnet, they have Technet.
ILINK - Introduction
I-LINK***ECHOLINK
Boards -- From WB2REM & G4CDY
WIRES IITM -- (Wide-Coverage Internet Repeater Enhancement System) Another VoIP (Voice Over IP) Innovation Via Yaseu
All
About Wires IITM By Jim Baudo, N0UQZ
eQSO a
client / server software program designed by Amateur Radio enthusiasts for
linking Amateur Radio RF gateways and repeaters via the Internet. NEW: HamSphere Turn your PC into a Ham Radio Transceiver for the HamSphere virtual Ionosphere.
QsoNet uses the internet to receive audio signals from a ham
radio transmitting station, then instantly reflects the audio back to all
stations listening on that frequency. D-Star -- Introductory article from the ARRL N6FN's "E-Z Guide to D-STAR Operation" book Adium - multi-chat protocol IM client for the Mac, ncludes AIM, MSN, GTalk, Facebook, ICQ, Jabber, & more Pidgin - multi-chat protocol IM client for Windows & Linux, includes AIM, MSN, Facebook, GTalk, ICQ, Jabber, & more
GMRS
Useage & FCC Rules
D-Star From ICOM
D-Star
Video 1 -- Well Done
D-Star Video 2
D-Star Video 3
D-STAR entry on Wikipedia
Search D-STAR Repeaters on World Map
List of Recent Node Activity and more
D-STAR Reflectors
dstarinfo.com -- Lots more D-STAR Information
NJ6N's D-CHAT and D-STAR Reference Page
D-STAR Usage Monitor
Icom D-STAR Forums
PAPA D-STAR System
GMRS
FAQ - Loaded
GMRS
Repeater Directory
Family
Radio Service