147.390+ PL 88.5 HZ

The Retired WB4IUY repeater in Clayton, NC


BULLETIN! The new 147.39 repeater is completed, and has replaced the repeater described on this page. Click =>HERE<= to see it during construction!




[bullet] 'Welcome to the WB4IUY repeater in Clayton, NC. PL 88.5. Part of the TEARA link system' is the feminine voice of AC4QD heard on this repeater every 10 minutes. This repeater is sponsored by the Triangle East Amateur Radio Association (TEARA). The repeater is located on private property, just south of Clayton near hwy 42 west.

[bullet] This picture on the right is the repeater (in the gray enclosure), sitting atop a _LARGE_ set of DB Products 6 cavity duplexers. The repeater is a Motorola MastrPro, with many modifications. The controller is a MCC RC-1000 with the newest firmware and a homebrew voice ID'r. An ARR GaAsFet receiver preamplifier is also installed internally to improve weak signal performance. This is an open repeater, although it does require a sub-audible tone of 88.5 hz for access. This is necessary to control unintentional interference generated by commercial sources and that which occurs during band openings. Additionally, several cavity filters are required to maintain control of the repeater and minimize interference from local hi-powered paging systems and commercial repeaters, as well as reduce the receiver desense caused by the high levels of RF from local co-located systems on a broadcast tower. Some of these cavity filters are shown in the picture to the left.

[bullet] This repeater also shares it's feedline and antenna system with the W4RAL-6 BBS digipeater. The next photo on the right shows parts of the mixing network that was designed to allow the voice repeater on 147.39/99 and a digital node on 145.01 to co-habitate the same system sucessfully.

[bullet] This repeater replaces the previous RCA series 1000 repeater, similar to the one described on the 147.300 repeater page. Being in a high spot, this tower is a regular attraction for lightning strikes. The previous repeater was destroyed by lightning, and this machine has been rebuilt (nearly from the ground up!) twice since it's installation in Clayton during the spring of 1997.

[bullet] The tower structure is about 200 feet tall, and the repeater antenna occupies the top perch. The repeater's primary antenna is a Sinclair 4 bay dipole array fed through about 300' of 1 5/8" Andrews heliax. The Clayton site is about 335 feet above sea level, and the antenna is about 535 feet above sea level!

[bullet] The photo below shows the tower structure. At the very top is the repeater's Sinclair 4-bay dipole array.

Return to the TEARA Repeater Page.
RETURN to the main TEARA Webpage!


www.621Cycles.com

East R/C Hobby Shop
Custom CNC Machined Components for the R/C Industry


TEARA SITEMAP: For best site navigation click the Main Website Entry link below, or select items from the menu on the LH side of the page...

Club Stuff...
Main TEARA Website Entry Point   Club Website Main Page   Membership Application   An ARRL Club   Repeater Bulletins   Club Bulletins   Zebulon Site Bulletins   Club Constitution (html)   Club Constitution (txt)k   TEARA Members' Email   VE TEST Schedule Listings for NC   TEARA Members' Websites   Support TEARA   Meeting Site Map   Club Meeting Schedule   Net Information   VE Team Bulletins   Meeting Schedule   TEARA VE Schedule   Ham Radio License Classes   TEARA's VE Team  

Club Handbook Stuff...
Handbook Index   Handbook Preface   Handbook Welcome   Membership Info   Club History   YOUR FIRST TRANSMISSION   USING THE PHONE PATCH   NEW RULES   SPEED DIAL   REVERSE PHONE PATCH  

Packet Stuff...
WB4IUY APRS Digi   K4RTP-8 SEDAN Node in Zebulon   W4RAL-4 BBS Node in Clayton   W4RAL-7 BBS Node in Zebulon   WB4IUY-7 6 Meter BBS Node near Youngsville   Packet Radio Gateway info   TEARa Packet Addresses   Packet Radio Links   W4RAL Packet BBS   DX Cluster Info   APRS Systems   SEDAN Info   Local Packet BBS Nodes   Packet NOS   DX Cluster Links   APRS Links   SEDAN Links   NOS Links   DX Cluster Nodes and Use   APRS Packet Nodes   SEDAN Nodes   NOS Nodes Activity   Using Packet BBS Nodes  

Repeater Stuff...
WA4UQC 147.30 mhz Repeater in Wilson (sk) Pg.1   WA4UQC 147.30 mhz Repeater in Wilson (sk) Pg.2   The Retired WB4IUY 147.39 mhz repeater in Clayton   New 147.39 repeater construction (pg.1)   New 147.39 repeater construction (pg.2)   New 147.39 repeater construction (pg.3)   New 147.39 repeater construction (pg.4)   New 147.39 repeater construction (pg.5)   New 147.39 repeater construction (pg.6)   New 147.39 repeater construction (pg.7)   The NEW WB4IUY 147.39 mhz repeater in Clayton   KD4WIW 224.80 mhz repeater in Zebulon   WB4IUY 29.620 repeater in Zebulon (pg.1)   WB4IUY 29.620 repeater in Zebulon (pg.2)   KD4WIW 442.40 mhz repeater in Zebulon   K4JDR 444.775 repeater in Cary   Repeater Operation Info   Repeater Linking System   Area TEARA & Member Repeaters  

ATV Stuff...
ATV Links   TV Frequency Allocations   SEE YOU ON THE AIR!   ATV Rabbits   2.4 GHz FM ATV   RF Power Table   ATV around central NC  

Club Events...
Bear Wallow Mountain '94   Bear Wallow Mountain '95   Bear Wallow Mountain '96   Field Day Overview   1994 Field Day   1995 Field Day   1996 Field Day   1997 Field Day   1999 Field Day   2000 Field Day   2003 Field Day   2004 Field Day   Special Event Info  

DXing Stuff...
DXing and QSLing Aids   DX Callsign Search Page   US Callsign Search Page   External Callsign Search Engines   KQ4MS Big Gun Party, 1   KQ4MS Big Gun Party, 2   KQ4MS Big Gun Party, 3   KQ4MS Big Gun Party, 4   KQ4MS Big Gun Party, 5   KQ4MS Big Gun Party, 6   KQ4MS Big Gun Party, 7   Propogation Info Page   W4SIS Big Gun Party   W4SIS Big Gun Party, 1   W4SIS Big Gun Party, 2   W4SIS Big Gun Party, 3   W4SIS Big Gun Party, 4   W4SIS Big Gun Party, 5   W4SIS Big Gun Party, 6   W4SIS Big Gun Party, 7   W4SIS Big Gun Party, 8   W4SIS Big Gun Party, 9   W4SIS Big Gun Party, 10   W4SIS Big Gun Party, 11   W4SIS Big Gun Party, 12   W4SIS Big Gun Party, 13   W4SIS Big Gun Party, 14   W4SIS Big Gun Party, 15   VHF / UHF Contests  

General Amateur Radio Stuff...
FCC INFO PAGE   FCC Part 97 Regs  

Shack Stuff...
Ham Radio Software   Ham Radio Software   Downeast Microwave Catalog (txt)   Yagi Design Software  

Misc Stuff...
Home Brewer's Links   Call Sign Servers   CLASSIFIED ADs   Atomic Clock   NC AREA CLUBS   Dealers' Links   Radio Parts and Services   TEARA's Links Catagories   E-Zine Info   Ham Radio Activities   Ham Radio Newsgroups   Ham Radio Reflectors   Resistor Tutorial   Ham Satellites   Spread Spectrum Radio   VHF / Weak Signal Links   Vintage Radio Links  

Supporters of the TEARA Website Costs...
Scootworks - Custom Accessories for Metric Motorcycles   Granucci Motorcycle Saddles   Granucci Motorcycle Saddles   Granucci Motorcycle Saddles   Granucci Motorcycle Saddles   Granucci Motorcycle Saddles   Vulcan Belt Drive Systems   Suzuki Belt Drive Systems   Honda Belt Drive Systems   Belt Drive Systems for Metric Motorcycles   Engine Guard Chaps and Crash Bar Chaps for Metric Motorcycles   Pull back risers for motorcycles   Scootworks Phatrisers for metric motorcycles   Handlebar Risers for metric motorcycles   Lowering Kits for metric motorcycles   Tour Packs and Trunk kits for metric motorcycles   Handlebar mounted beverage and drink holders for metric motorcycles