Stealth Antenna Farm K5TRA. T.Apel

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Stealth Antenna Farm K5TRA. T.Apel"

Transcription

1 Stealth Antenna Farm 1

2 Preliminary Considerations Why stealth? Restrictive neighborhood covenants! Attic performance factors Location /ground elevation Longley-Rice propagation plot for VHF/UHF/mWave Attic size and height Reflective clutter: furnace/ac/ducting Roof insulation (reflective or not) Feedline routing plan Improvements Plywood flooring 120 V AC power Overhead lights CAT-5? 2

3 440 MHz Longley-Rice Plot Analysis before I purchased my home Planned for repeaters and weak-signal operation 3

4 Keys to Performance HF Balanced antennas: large loops or dipoles eliminates problems with grounding/counterpoise Lots of copper I use copper tubing for my HF loop A good balun with plenty of reserve power rating I use a 10KW, 4:1 VHF-UHF-mWave Stacked beam antennas reduce boom length Line loss management is key to performance at higher frequency bands Remote LNA establishes system NF at antenna LNA preselector filter is a MUST below 440 MHz Remote PA provides free boost to transmit power CAT-5, IP control of remote power supplies for LNA/PA works well Omni antennas are useful for local QSO s Filters are needed with co-located transmitters / repeaters Receiver desense Reverse IMD Crossband couplers reduce the number feedlines 4

5 Shack HF, 50 and 222 MHz 144, 432, 902 and 1296 MHz 5

6 Home Repeater

7 Shack Configuration HF HF 144 MHz 432 MHz 6 M 222 MHz XVTR CROSSBAND COUPLER CROSSBAND COUPLER 50 MHz 222 MHz 144 MHz 432 MHz 146 MHz 1296 MHz XVTR OMNI / YAGI SELECT 1296 MHz 432 MHz 902 MHz XVTR 902 MHz 902 MHz 440 MHz CROSSBAND COUPLER 927 MHz 440 MHz 7

8 1296 MHz OMNI 902 MHz OMNI Diamond X-50 SCALA OGB , 432, 902 & 1296 MHz STACK 222 MHz OMNI HF and Weak Signal Antennas HF COPPER TUBING LOOP HF 50 MHz 222 MHz CWS 10KW 4:1 BALUN CROSSBAND COUPLER LOOP REMOTE TUNING 50 MHz 222 MHz 50 MHz OMNI 144 MHz 432 MHz CROSSBAND COUPLER 432 MHz 144 MHz CROSSBAND COUPLER 1296 MHz 902 MHz 1296 MHz 902 MHz OMNI / YAGI SELECT 927 MHz 440 MHz CROSSBAND COUPLER 440 MHz 927 MHz 8

9 Beam Antennas 3 STACKED 144/432 5EL LP 17 ELEMENT M YAGI 2 x 22 ELEMENT M YAGI 9

10 SCALA OGB Diamond X-50 Diamond X-50 Phelps-Dodge StationMaster-II Diamond X-50 SCALA OGB Diamond X /902 MHz LINK-1 Repeater and Link Antennas LINK-1 443/448 MHz LINK-2 927/902 MHz (ALLSTAR) LINK-1 (ALLSTAR) LINK-2 CROSSBAND COUPLER 10

11 Repeaters and Links 927/902 MHz LINK-1 LINK-1 443/448 MHz LINK-2 927/902 MHz U R I U R I U R I CROSSBAND COUPLER LINK-1, LINK-2 927/902 MHz LINK-1 LINK-2 11

12 Balun Feed for HF Loop 12

13 HF Loop Tuning Capacitor Switch 13

14 WEB Controlled Power-Strip Remote PA and LNA on-off control HF loop tuning capacitor switching 14

15 Remote 902 MHz and 1296 MHz LNAs 15

16 Loss (db) Loss of LMR-400 (100 ft, with connectors) 902 MHz 1296 MHz MHz MHz 50 MHz 144 MHz Frequency (MHz) 16

17 SENSITIVITY (dbm) SENSITIVITY DEGRADATION (%) SSB: 2.7 KHz BW, 10 db S/N, 50 W CW: 500 Hz BW, 6 db S/N, 50 W Sensitivity vs NF 100% 90% % % SSB Sensitivity (dbm) CW Sensitivity (dbm) Degradation (%) 60% 50% 40% 30% 20% 10% % NF (db) 17

18 SENSITIVITY (uv) SENSITIVITY DEGRADATION (%) 0.20 SSB: 2.7 KHz BW, 10 db S/N, 50 W CW: 500 Hz BW, 6 db S/N, 50 W Sensitivity vs NF 100% SSB Sensitivity (uv) CW Sensitivity (uv) Degradation (%) 90% 80% 70% 60% % % % % % % NF (db) 18

19 Remote 902 MHz and 1296 MHz LNAs 19

20 Schottky Detector CONTROL SENSITIVITY DOWN TO +13 dbm MHz Beacon 20

21 Mini-Circuits ZX60-P162 LNA 0.5 db NF and 20 db gain MHz Beacon 21

22 VHF and UHF Remote LNA s MHz Beacon 222 MHz ASSEMBLY 22

23 Helical BPF 222 MHz ASSEMBLY 23

24 LNA Preselector Response MHz Beacon 24

25 More Helical BPFs 432 MHz ASSEMBLY 144 MHz ASSEMBLY 25

26 902 MHz and 1296 MHz Remote PA & LNA MHz Beacon 26

27 900 MHz Remote PA & LNA MHz Beacon 27

28 1296 MHz Remote PA & LNA MHz Beacon 28

29 Modified 1296 MHz PA MHz Beacon 29

30 432 MHz 222 MHz 144 MHz VHF-UHF Remote PA & LNAs MHz Beacon 30

31 432 MHz 222 MHz 144 MHz VHF-UHF Remote PA & LNAs MHz Beacon 31

32 222 MHz Remote PA & LNA MHz Beacon 32

33 222 MHz HELICAL COLLINEAR 1296 MHz HELICAL COLLINEAR 902 MHz HELICAL COLLINEAR H-Polarized Omni s CIRCULAR COLLINEAR 50 MHz OMNI FOLDED DIPOLE 222 MHz WHEEL 33

34 Hi Q ¾ l CAVITY NOTCH FILTER HELLICAL COLLINEAR H-POLARIZED OMNI 927 MHz Notch Cavity with 902 MHz Omni 34

35 Link Radios Share Feedline and Antenna SHARED LINK ANTENNA REJECT F3 UHF Repeater Frequency 1 Frequency 2 PASS F1 REJECT F2 PASS F2 REJECT F1 35

36 Crossband Couplers (BAND SPLIT DIPLEXERS) 36

37 Some Attic Photos 37

38 Summary Location, location, location! (elevation, elevation, ) Plan before you begin Key to performance: Remote LAN with BPF Establish NF at antenna! Remote PA Filters needed for co-located links and repeaters Crossband couplers for efficient use of coax runs Link radios can share feed and antenna through cavity duplexer No rain, lightning or UV deterioration Easy maintenance 38

Technician Licensing Class

Technician Licensing Class Technician Licensing Class Antennas Presented by Amateur Radio Technician Class Element 2 Course Presentation ELEMENT 2 SUB-ELEMENTS (Groupings) About Ham Radio Call Signs Control Mind the Rules Tech Frequencies

More information

Application Note Receiving HF Signals with a USRP Device Ettus Research

Application Note Receiving HF Signals with a USRP Device Ettus Research Application Note Receiving HF Signals with a USRP Device Ettus Research Introduction The electromagnetic (EM) spectrum between 3 and 30 MHz is commonly referred to as the HF band. Due to the propagation

More information

Why 900 MHz? 900 MHz is a new frontier for FM operation. It is very much like 70 cm was 35 years ago

Why 900 MHz? 900 MHz is a new frontier for FM operation. It is very much like 70 cm was 35 years ago Why 900 MHz? 900 MHz is a new frontier for FM operation It is very much like 70 cm was 35 years ago Radios are modified commercial gear: mostly Motorola or Kenwood Propagation is more challenging than

More information

Amplifier for Small Magnetic and Electric Wideband Receiving Antennas (model AAA-1B)

Amplifier for Small Magnetic and Electric Wideband Receiving Antennas (model AAA-1B) Amplifier for Small Magnetic and Electric Wideband Receiving Antennas (model AAA-1B) 1. Description and Specifications Contents 1.1 Description 1.2 1.2 Specifications 1.3 1.3 Tested parameters in production

More information

Technician Licensing Class

Technician Licensing Class Technician Licensing Class Feed Me with Some Good Coax! Presented by Amateur Radio Technician Class Element 2 Course Presentation ELEMENT 2 SUB-ELEMENTS (Groupings) About Ham Radio Call Signs Control Mind

More information

The spiderbeam was developed as a DXpeditioner's dream antenna. It is a full size lightweight tribander yagi made of fiberglass and wire.

The spiderbeam was developed as a DXpeditioner's dream antenna. It is a full size lightweight tribander yagi made of fiberglass and wire. The spiderbeam was developed as a DXpeditioner's dream antenna. It is a full size lightweight tribander yagi made of fiberglass and wire. The whole antenna weight is only kg (lbs), making it ideally suited

More information

Modeling an 80/40/20M Fan Dipole for DX

Modeling an 80/40/20M Fan Dipole for DX Modeling an 80/40/20M Fan Dipole for DX New Station New Antennas! Installation and SWR Response Where is the DX? How do these Dipoles Play? (EZNEC) What about Terrain? HFTA and Terrain The effect on these

More information

Using the SDR-IQ and SDR-14 Software Defined Receivers as a Panoramic Adapter with the Yaesu FT-2000(D) Radio

Using the SDR-IQ and SDR-14 Software Defined Receivers as a Panoramic Adapter with the Yaesu FT-2000(D) Radio Using the SDR-IQ and SDR-14 Software Defined Receivers as a Panoramic Adapter with the Yaesu FT-2000(D) Radio 10/27/2008 Preliminary v1.0 The RFSPACE SDR-IQ and SDR-14 receivers offer leading edge spectrum

More information

This Antenna Basics reference guide includes basic information about antenna types, how antennas work, gain, and some installation examples.

This Antenna Basics reference guide includes basic information about antenna types, how antennas work, gain, and some installation examples. Antenna Basics This Antenna Basics reference guide includes basic information about antenna types, how antennas work, gain, and some installation examples. What Do Antennas Do? Antennas transmit radio

More information

HUMAN EXPOSURE TO EMR: ASSESSMENT OF AMATEUR RADIO STATIONS FOR COMPLIANCE WITH ACA REQUIREMENTS

HUMAN EXPOSURE TO EMR: ASSESSMENT OF AMATEUR RADIO STATIONS FOR COMPLIANCE WITH ACA REQUIREMENTS HUMAN EXPOSURE TO EMR: ASSESSMENT OF AMATEUR RADIO STATIONS FOR COMPLIANCE WITH ACA REQUIREMENTS May 2005 Version 2.0 PO Box 78 BELCONNEN ACT 2616 Telephone (02) 6219 5555 Facsimile (02) 6219 5353 www.aca.gov.au

More information

Antenna Considerations. The space available for an antenna The proximity to neighbours The operating frequencies you will use The output power Money

Antenna Considerations. The space available for an antenna The proximity to neighbours The operating frequencies you will use The output power Money Antennas A good antenna works A bad antenna is a waste of time & money Antenna systems can be very inexpensive and simple They can also be very, very expensive Antenna Considerations The space available

More information

&"#' ( "#' )*! #+ #,# 1" 1! 2"# ' 6! #* #!"#" +" )$# # # "#$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!( " " "32#$#$2#9 # "#!#1#$#$#9 '29# # #9$

&#' ( #' )*! #+ #,# 1 1! 2# ' 6! #* #!# + )$# # # #$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!(   32#$#$2#9 # #!#1#$#$#9 '29# # #9$ !"## $#!%!"# &"#' ( "#' )*! #+ #,# "##!$ -+./0 1" 1! 2"# # -&1!"#" (2345-&1 #$6.7 -&89$## ' 6! #* #!"#" +" 1##6$ "#+# #-& :1# # $ #$#;1)+#1#+

More information

Remotely tuned 1m Dia HF loop antenna for 7 to 29MHz. Martin Ehrenfried - G8JNJ

Remotely tuned 1m Dia HF loop antenna for 7 to 29MHz. Martin Ehrenfried - G8JNJ Remotely tuned 1m Dia HF loop antenna for 7 to 29MHz Martin Ehrenfried - G8JNJ The following is a description of a prototype loop antenna I've been constructing. The big challenge with all small loop designs

More information

A N T E N N A RESEARCH

A N T E N N A RESEARCH Our low profile MLA series Miniloops and very low profile MLH series half loops are high power communications antennas. These antennas are designed for installation in virtually any environment, especially

More information

Antenna Deployment Technical Brief

Antenna Deployment Technical Brief ProCurve Networking Antenna Deployment Technical Brief Introduction... 2 Antenna types... 2 Omni directional antennas... 2 Directional antennas... 2 Diversity antennas... 3 High gain directional antennas...

More information

Directive Systems & Engineering 2702 Rodgers Terrace Haymarket, VA 20169 1628

Directive Systems & Engineering 2702 Rodgers Terrace Haymarket, VA 20169 1628 Directive Systems & Engineering 2702 Rodgers Terrace Haymarket, VA 20169 1628 www.directivesystems.com 703 754 3876 The Ins and Outs of T Matches All of our K1FO yagis and the DS50-5 six meter yagi utilize

More information

M2 Antenna Systems, Inc. Model No: PS-2M

M2 Antenna Systems, Inc. Model No: PS-2M M2 Antenna Systems, Inc. Model No: PS-2M SPECIFICATIONS: Model... PS-2M Frequency Range... 100 to 250 MHz Isolation, 2M / 440... 50 db / 40 db Feed Impedance.... 50 Ohms Unbalanced VSWR... 1.2:1 or better

More information

@'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED. Receiver Dynamics

@'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED. Receiver Dynamics @'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED Receiver Dynamics STATUTORILY EXEMPT Editor's Note: This paper was written before the author retired (1995), In K4 we use a number

More information

Introduction to Receivers

Introduction to Receivers Introduction to Receivers Purpose: translate RF signals to baseband Shift frequency Amplify Filter Demodulate Why is this a challenge? Interference (selectivity, images and distortion) Large dynamic range

More information

Here are the details with pictures of the items for sale as listed below. Please Scroll Down.

Here are the details with pictures of the items for sale as listed below. Please Scroll Down. Here are the details with pictures of the items for sale as listed below. Please Scroll Down. Further Items are also available - for further list please phone or e-mail Phone Ivan 073 528 4950 or 021 439

More information

Small HF Antennas - - -- - - - -- - - ! The Small Space and Big Antenna Dilemma! Constraints

Small HF Antennas - - -- - - - -- - - ! The Small Space and Big Antenna Dilemma! Constraints Small HF Antennas! The Small Space and Big Antenna Dilemma! Constraints " Covenants " Restricted lot size " City Bylaws " Boards of Variance " Strata Rules " Neighbor complaints of unsightly structures

More information

Roofing Filters, Transmitted IMD and Receiver Performance

Roofing Filters, Transmitted IMD and Receiver Performance Roofing Filters, Transmitted IMD and Receiver Performance Rob Sherwood NCØB What s important when it comes to choosing a radio? Sherwood Engineering Why Did I Start Testing Radios? Purchased a new Drake

More information

W3PM WSPR Transceiver

W3PM WSPR Transceiver W3PM WSPR Transceiver Gene Marcus, W3PM GM4YRE Weak Signal Propagation Reporter (WSPR) is a program developed by Joe Taylor, K1JT that uses a computer sound card to generate audio tones to modulate an

More information

ProCurve Networking Antenna Deployment

ProCurve Networking Antenna Deployment ProCurve Networking Antenna Deployment Technical Brief Introduction... 2 Antenna types... 2 Omni directional antennas... 2 Directional antennas... 2 Diversity antennas... 3 High gain directional antennas...

More information

Introduction to Antennas Dipoles Verticals Large Loops. by Marc C. Tarplee Ph.D., NCE N4UFP

Introduction to Antennas Dipoles Verticals Large Loops. by Marc C. Tarplee Ph.D., NCE N4UFP Introduction to Antennas Dipoles Verticals Large Loops Yagi-Uda Arrays by Marc C. Tarplee Ph.D., NCE N4UFP Introduction What is an antenna? An antenna is a device that: Converts RF power applied to its

More information

Basic Wire Antennas. Part II: Loops and Verticals

Basic Wire Antennas. Part II: Loops and Verticals Basic Wire Antennas Part II: Loops and Verticals A loop antenna is composed of a single loop of wire, greater than a half wavelength long. The loop does not have to be any particular shape. RF power can

More information

Antenna Trainer EAN. www.edibon.com. Technical Teaching Equipment INTRODUCTION

Antenna Trainer EAN. www.edibon.com. Technical Teaching Equipment INTRODUCTION Antenna Trainer EAN Technical Teaching Equipment Products Products range Units 3.-Communications INTRODUCTION Antennas are the main element of aerial communications. They are the transition between a transmission

More information

Using Sim Smith to Improve Antenna Matching

Using Sim Smith to Improve Antenna Matching Using Sim Smith to Improve Antenna Matching Jim Brown K9YC k9yc@arrl.net http://audiosystemsgroup.com/publish.htm The Objectives Eliminate antenna tuners Improve match to our rigs Minimize losses Improve

More information

HF OPERATORS SMALL HF ANTENNAS - - - - - - - - - - - Rev 1. John White VA7JW

HF OPERATORS SMALL HF ANTENNAS - - - - - - - - - - - Rev 1. John White VA7JW HF OPERATORS SMALL HF ANTENNAS Rev 1 by John White VA7JW NSARC HF Operators 1 Antenna Problems Big or Small always problems. Affects all - Single family, apartments, condo s, high rises, etc The Small

More information

PGA103+ Low noise, high dynamic range preamp for VHF and UHF

PGA103+ Low noise, high dynamic range preamp for VHF and UHF PGA103+ Low noise, high dynamic range preamp for VHF and UHF By Sam Jewell, G4DDK and Kent Britain, WA5VJB Introduction This paper describes a low noise, high dynamic range VHF/UHF preamp that uses the

More information

VHF 101 and VHF Contesting A First Look at Weak Signal VHF and Up

VHF 101 and VHF Contesting A First Look at Weak Signal VHF and Up VHF 101 and VHF Contesting A First Look at Weak Signal VHF and Up 1 Loosely speaking, Amateur Radio is divided into two large pieces. The High Frequencies (HF) The VHF Frequencies and above. We often call

More information

'' EGGBEATER '' ANTENNA VHF/UHF ~ PART 2

'' EGGBEATER '' ANTENNA VHF/UHF ~ PART 2 '' EGGBEATER '' ANTENNA VHF/UHF ~ PART 2 ON6WG / F5VIF Summary Note : In Part 1, Fig 1 shows a maximum gain of 6.45 dbi. Several design attempts were made using slightly different configurations ( i.e.

More information

Experiences with Portable Equipment for Working LEO Satellites. AMSAT-UK Colloquium 2011 Ivo Klinkert, PA1IVO

Experiences with Portable Equipment for Working LEO Satellites. AMSAT-UK Colloquium 2011 Ivo Klinkert, PA1IVO A Multipurpose Portable Setup Experiences with Portable Equipment for Working LEO Satellites AMSAT-UK Colloquium 2011 Ivo Klinkert, PA1IVO A Multipurpose Portable Setup- PA1IVO page: 1 of 20 Overview Presentation

More information

The New HF ! What s New? ! New Antenna SteppIR Yagi! RF Power Amplifier 500 W Icom 2KL! Antenna Tuner Icom AT500

The New HF ! What s New? ! New Antenna SteppIR Yagi! RF Power Amplifier 500 W Icom 2KL! Antenna Tuner Icom AT500 The New HF-1! What s New?! New Antenna SteppIR Yagi! RF Power Amplifier 500 W Icom 2KL! Antenna Tuner Icom AT500! Fully Automatic no tuning required! Antenna SWR

More information

Meteor Radar SDR Receiver (FUNcube Dongle)

Meteor Radar SDR Receiver (FUNcube Dongle) 1 Introduction This article describes recent experiments with the software defined radio equipment known as the FUNcube Dongle (FCD) 1 to determine its usefulness as the receiver in a Meteor Scatter Radar.

More information

Establishing & Equipping an Amateur Station

Establishing & Equipping an Amateur Station Halifax Amateur Radio Club Basic Amateur Radio Licensing Course - 2013 Saturday, November 3, 2012 Establishing & Equipping an Amateur Station Objectives Students should be familiar with: equipment necessary

More information

REPEATER SENSITIVITY / DE-SENSE TESTS

REPEATER SENSITIVITY / DE-SENSE TESTS REPEATER SENSITIVITY / DE-SENSE TESTS TESTING RX SENSITIVITY DEGRADATION CAUSED BY: - ANTENNA NOISE PICK-UP - TX SIGNAL FEEDING BACK INTO RX BUILDING A USEFUL SAMPLER WITH MEASURED RESPONSE GE MASTER II

More information

HF Receivers, Part 1

HF Receivers, Part 1 HF Receivers, Part 1 Basic receiver concepts & types Adam Farson VA7OJ View an excellent tutorial on receivers NSARC HF Operators HF Receivers 1 1 Basic Receiver Requirements Amplify the received low-power

More information

Yaesu FT-847 70mhz Pre-amplifier

Yaesu FT-847 70mhz Pre-amplifier Yaesu FT-847 70mhz Pre-amplifier By CT1FFU- Tony I decided to buy a Yaesu FT-847. Using an all mode all band radio, operation becomes much easier and give better accommodation on shack however, I soon

More information

Radio System Co-existence

Radio System Co-existence Radio System Co-existence Standards Certification Education & Training Publishing Conferences & Exhibits Brian Cunningham Cooper Bussmann September, 2012 Agenda Frequencies Frequency choices ISM bands

More information

5. ANTENNA TYPES. Figure 5. The vertical dipole and its electromagnetic equivalent, the vertical monopole

5. ANTENNA TYPES. Figure 5. The vertical dipole and its electromagnetic equivalent, the vertical monopole Antennas can be classified in several ways. One way is the frequency band of operation. Others include physical structure and electrical/electromagnetic design. The antennas commonly used for LMR both

More information

HF Antennas 101. SARA Monthly Meeting 3/3/2010 Dave Ritchie, W6DR Yin Shih, N9YS

HF Antennas 101. SARA Monthly Meeting 3/3/2010 Dave Ritchie, W6DR Yin Shih, N9YS HF Antennas 101 SARA Monthly Meeting 3/3/2010 Dave Ritchie, W6DR Yin Shih, N9YS HF Antennas 101 A good antenna may be the most important component of a good HF station 1W QRP station + good antenna can

More information

EE302 Lesson 14: Antennas

EE302 Lesson 14: Antennas EE302 Lesson 14: Antennas Loaded antennas /4 antennas are desirable because their impedance is purely resistive. At low frequencies, full /4 antennas are sometime impractical (especially in mobile applications).

More information

Pre-Load and Loading procedure for the Kenwood TS-820S. NR6C credit to K4EAA

Pre-Load and Loading procedure for the Kenwood TS-820S. NR6C credit to K4EAA Pre-Load and Loading procedure for the Kenwood TS-820S NR6C credit to K4EAA Here are some instructions for how to properly tune your Kenwood hybrid transmitter. It takes longer to describe than it does

More information

Selecting Receiving Antennas for Radio Tracking

Selecting Receiving Antennas for Radio Tracking Selecting Receiving Antennas for Radio Tracking Larry B Kuechle, Advanced Telemetry Systems, Inc. Isanti, Minnesota 55040 lkuechle@atstrack.com The receiving antenna is an integral part of any radio location

More information

Broadband over Power Line (BPL) Test Procedures and Equipment Authorization

Broadband over Power Line (BPL) Test Procedures and Equipment Authorization Broadband over Power Line (BPL) Test Procedures and Equipment Authorization Andy Leimer Equipment Authorization Branch Federal Communications Commission Office of Engineering and Technology Laboratory

More information

Just a Dipole. Gary Wescom N0GW July 16, 2007

Just a Dipole. Gary Wescom N0GW July 16, 2007 Just a Dipole Gary Wescom N0GW July 16, 2007 Often we will hear people describing their antennas as just a dipole. After all, a coax cable fed, half wavelength dipole is one of the simplest antennas to

More information

Manufacturers Suggested Retail Price List

Manufacturers Suggested Retail Price List Manufacturers Suggested Retail Price List Effective December 11th, 2008 15182 Triton Lane Suite 102, Huntington Beach, CA 92649 Voice 714.901.5462 Fax 714.901.5472 www.pyramidcomm.com SVR-250 Repeater

More information

Study of RF Spectrum Emissions in High Pressure Sodium and Metal Halide Lamps. Lawrence P. Glaister VE7IT, Automation Engineer.

Study of RF Spectrum Emissions in High Pressure Sodium and Metal Halide Lamps. Lawrence P. Glaister VE7IT, Automation Engineer. Study of RF Spectrum Emissions in High Pressure Sodium and Metal Halide Lamps Lawrence P. Glaister VE7IT, Automation Engineer May 2010 Abstract: This research was performed in collaboration with the City

More information

Linear-Loaded Multi-Band Dipole Patent Pending

Linear-Loaded Multi-Band Dipole Patent Pending Linear-Loaded Multi-Band Dipole Patent Pending DXE-SWA-070 Revision 3 DX Engineering 2005 P.O. Box 1491 Akron, OH 44309-1491 Phone: (800) 777-0703 Tech Support and International: (330) 572-3200 Fax: (330)

More information

Marine HF SSB Installation and Grounding. Anatomy of the Best Tour 2006

Marine HF SSB Installation and Grounding. Anatomy of the Best Tour 2006 Marine HF SSB Installation and Grounding Anatomy of the Best Tour 2006 Marine HF Installation Considerations This document is meant to be an overview of Marine HF radio installation For detailed installation

More information

432 MHz EME with a small antenna

432 MHz EME with a small antenna 432 MHz EME with a small antenna by Andreas Haefner, DJ3JJ A lot of people would like to do EME but think they need a big antenna for this. In this article I show how to build up a small but competitive

More information

RECOMMENDATION ITU-R SM.1792. Measuring sideband emissions of T-DAB and DVB-T transmitters for monitoring purposes

RECOMMENDATION ITU-R SM.1792. Measuring sideband emissions of T-DAB and DVB-T transmitters for monitoring purposes Rec. ITU-R SM.1792 1 RECOMMENDATION ITU-R SM.1792 Measuring sideband emissions of T-DAB and DVB-T transmitters for monitoring purposes (2007) Scope This Recommendation provides guidance to measurement

More information

Innovative Antenna Solutions

Innovative Antenna Solutions Product Catalog APPLIED EM is a pioneer in innovative compact antenna designs for commercial and defense applications. In collaboration with universities and industry partners, Applied EM specializes in

More information

HF Tactical NVIS ANTENNAS

HF Tactical NVIS ANTENNAS HF Tactical NVIS ANTENNAS Introduction: A properly designed Near Vertical Incident Skywave (NVIS) antenna will have a directivity pattern that will maximize transmission and reception at high angles while

More information

DX 2517. AM FM SSB CW PA Amateur Base Station Transceiver OWNER S MANUAL RX / TX 2 4 POWER NF CHANNEL MODE RF POWER OFF CAL OFF OFF CALIBRATE

DX 2517. AM FM SSB CW PA Amateur Base Station Transceiver OWNER S MANUAL RX / TX 2 4 POWER NF CHANNEL MODE RF POWER OFF CAL OFF OFF CALIBRATE 1 2 3 6 4050 ULA 6070 TI 80 90 100 9 DX 2517 2517 RX / TX 0 2 4 SWR WATTS SET 81012 22 1 010 3 2030 5 MOD 7 ON dbover 9 SIGNAL +20 +40+60 PA FM AM USB LSB CW POWER ON SWR NB / ANL R.BEEP +10KHz NF CHANNEL

More information

Technical Service Bulletin IOT Tuning with Tracking Generator or Network Analyzer

Technical Service Bulletin IOT Tuning with Tracking Generator or Network Analyzer Technical Service Bulletin 030615 IOT Tuning with Tracking Generator or Network Analyzer This bulletin provides a general procedure for IOT tuning for the IOX or DCX transmitter. When possible, this procedure

More information

Digital TV Antennas. Matchmaster premium UHF antennas. are suitable for metropolitan & rural. areas using UHF broadcasts. Heavy

Digital TV Antennas. Matchmaster premium UHF antennas. are suitable for metropolitan & rural. areas using UHF broadcasts. Heavy Digital TV Antennas Matchmaster premium UHF antennas are suitable for metropolitan & rural areas using UHF broadcasts. Heavy duty construction with F type baluns to improve signal quality. Various models

More information

Killing RF Noise for Field Day and CQP. Jim Brown K9YC

Killing RF Noise for Field Day and CQP. Jim Brown K9YC Killing RF Noise for Field Day and CQP Jim Brown K9YC http://k9yc.com/publish.htm The Fundamental Problem RF noise is generated inside equipment The wires inside equipment, and cables that interconnect

More information

Some Measurements on DVB-T Dongles with E4000 and R820T Tuners:

Some Measurements on DVB-T Dongles with E4000 and R820T Tuners: Some Measurements on DVB-T Dongles with E4000 and R820T Tuners: Image Rejection, Internal Signals, Sensitivity, Overload, 1dB Compression, Intermodulation Contents: 1. Motivation 2. Test Setup 3. Image

More information

HF Receiver Testing. Issues & Advances. (also presented at APDXC 2014, Osaka, Japan, November 2014)

HF Receiver Testing. Issues & Advances. (also presented at APDXC 2014, Osaka, Japan, November 2014) HF Receiver Testing: Issues & Advances (also presented at APDXC 2014, Osaka, Japan, November 2014) Adam Farson VA7OJ/AB4OJ Copyright 2014 North Shore Amateur Radio Club 1 HF Receiver Performance Specs

More information

Advanced Photon Source. RF Beam Position Monitor Upgrade Robert M. Lill

Advanced Photon Source. RF Beam Position Monitor Upgrade Robert M. Lill Advanced Photon Source RF Beam Position Monitor Upgrade Robert M. Lill Filter Comparator (original design) to ATT LPF A+B ATT BPF S bo ATT ATT LPF 180 A-B 180 ATT BPF D x ti ATT LPF C+D ATT BPF D y 180

More information

High performance RX antenna for a small lot. Jose Carlos

High performance RX antenna for a small lot. Jose Carlos High performance RX antenna for a small lot Jose Carlos N4IS TX antenna interaction Common mode noise TX/RX leaking Polarization filter HWF Twisted pair lines HWF single loaded loop construction HWF dual

More information

Cheap Yagi Antennas for VHF/UHF

Cheap Yagi Antennas for VHF/UHF Cheap Yagi Antennas for VHF/UHF by Kent Britain, WA5VJB edited by John Maca, AB5SS [Editors notes: The antennas described in this article were built as the result of several discussions between Kent and

More information

A Ten Meter Vertical Antenna for All License Classes by Rich KR7W

A Ten Meter Vertical Antenna for All License Classes by Rich KR7W A Ten Meter Vertical Antenna for All License Classes by Rich KR7W The intent of this article is to show how I built an effective 10 meter vertical antenna. My goal is to reveal, in some kind of logical

More information

Presenters: Slides 1 thru 39 Harold AD7QJ Slides 40 thru 49 Mike KD7GHZ

Presenters: Slides 1 thru 39 Harold AD7QJ Slides 40 thru 49 Mike KD7GHZ Presenters: Slides 1 thru 39 Harold AD7QJ Slides 40 thru 49 Mike KD7GHZ 1 VHF Club November Meeting Presentation HF Antennas for Portable Operation 2 Basic Long Wire Transceiver Antenna Tuner Long wire

More information

There is an old adage in Amateur Radio that goes If your antenna did not fall down last winter, it

There is an old adage in Amateur Radio that goes If your antenna did not fall down last winter, it Chapter 17 Repeater Antenna Systems There is an old adage in Amateur Radio that goes If your antenna did not fall down last winter, it wasn t big enough. This adage might apply to antennas for MF and HF

More information

RF Communication System. EE 172 Systems Group Presentation

RF Communication System. EE 172 Systems Group Presentation RF Communication System EE 172 Systems Group Presentation RF System Outline Transmitter Components Receiver Components Noise Figure Link Budget Test Equipment System Success Design Remedy Transmitter Components

More information

Coaxial Cable Feeder Influence on Yagi Antenna Dragoslav Dobričić, YU1AW dragan@antennex.com

Coaxial Cable Feeder Influence on Yagi Antenna Dragoslav Dobričić, YU1AW dragan@antennex.com Coaxial Cable Feeder Influence on Yagi Antenna Dragoslav Dobričić, YU1AW dragan@antennex.com Introduction o far, in several previous articles [1, 2, 3], we investigated how boom radius and its S distance

More information

IC-756 Pro III vs. Pro II

IC-756 Pro III vs. Pro II IC-756 Pro III vs. Pro II Improvements in the Pro III vs. the Pro II Adam Farson VA7OJ IC-756Pro3 Information & Links Copyright 2006 North Shore Amateur Radio Club NSARC HF Operators 756Pro3 vs. Pro2 1

More information

Test Report: Yaesu FTDX-1200, S/N 3F02051 (loaned by Bill Trippett W7VP)

Test Report: Yaesu FTDX-1200, S/N 3F02051 (loaned by Bill Trippett W7VP) Test Report: Yaesu FTDX-1200, S/N 3F02051 (loaned by Bill Trippett W7VP) Adam M. Farson VA7OJ/AB4OJ, 19-21 July 2013 1. Introduction and Scope: The following tests were conducted on the FTDX-1200: A. Receiver

More information

Antenna Basic Concepts

Antenna Basic Concepts ANTENNA An antenna is a device to transmit and/or receive electromagnetic waves. Electromagnetic waves are often referred to as radio waves. Most antennas are resonant devices, which operate efficiently

More information

INSTRUCTION MANUAL ORDER NO MODEL 28 FM. 8 Element, 2-Meter Beam PN

INSTRUCTION MANUAL ORDER NO MODEL 28 FM. 8 Element, 2-Meter Beam PN ORDER NO. 2085-1 MODEL 28 FM 8 Element, 2-Meter Beam PN 801318-2 INSTRUCTION MANUAL General Description This antenna is an 8 element, optimum spaced, 2 meter beam. It features extremely high forward gain,

More information

5 in 1 DVB-T Transmitter & Dual Cast Agile Digital Transposer TV EQUIPMENT

5 in 1 DVB-T Transmitter & Dual Cast Agile Digital Transposer TV EQUIPMENT The VHF/UHF Dual cast Digital Transposers/ Digital Transmitters set new standards for ATV and DVB-T transposer and transmitter technology by combining top performance with an extensive number of features

More information

JP Tribander Owner Manual

JP Tribander Owner Manual JP Tribander Owner Manual JP-Tribander Technical overview JP-Tribander is effective tribander beam for 20m, 15m and 10meters with full size elements without traps. Antenna is designed using latest computer

More information

Broadcast Antenna Systems for FM, TV, MMDS, DAB and DVB

Broadcast Antenna Systems for FM, TV, MMDS, DAB and DVB Broadcast Antenna Systems for FM, TV, MMDS, DAB and DVB Photo on title page: Antenna System with 12 bays for DVB-T. Catalogue Issue 6/27 Kathrein Plant IV near Rosenheim, Germany Kathrein Broadcast Antennas

More information

Regional Emergency Communications. John Walters W8CX Alpena RACES

Regional Emergency Communications. John Walters W8CX Alpena RACES Regional Emergency Communications John Walters W8CX Alpena RACES Regional Communications Needs 400 mile radius No skip zone; no dead spots No interference with or from broadcasters Reliable day/night coverage

More information

Gordon West s Pre-Study Q&A for the Extra Class Course

Gordon West s Pre-Study Q&A for the Extra Class Course Gordon West s Pre-Study Q&A for the 2012-16 Extra Class Course W elcome to your EXTRA CLASS Element 4 pre-study homework. Your upcoming license exam preparation class will take your textbook questions

More information

Two-Way Radio Express Products List (EPL) 3744 Effective November 1, 2014

Two-Way Radio Express Products List (EPL) 3744 Effective November 1, 2014 Two-Way Radio Express Products List (EPL) 3744 Two-Way Radio Express Products List (EPL) 3744 Effective November 1, 2014 Cover Warranty: 1 Year Parts and Labor at Manufacturer 1 of 8 Synthesized Vehicular

More information

The Off-Center Fed Long Wire

The Off-Center Fed Long Wire Long-Wire Antennas The Off-Center Fed Long Wire An antenna is only a long wire if it is one wavelength or greater overall. A physically long piece of wire does not constitute a "long wire," contrary to

More information

STANDARD TERMS DETERMINATION FOR CO-LOCATION ON CELLULAR MOBILE TRANSMISSION SITES

STANDARD TERMS DETERMINATION FOR CO-LOCATION ON CELLULAR MOBILE TRANSMISSION SITES 736136 STANDARD TERMS DETERMINATION FOR CO-LOCATION ON CELLULAR MOBILE TRANSMISSION SITES SCHEDULE 5 MOBILE CO-LOCATION INTERFERENCE MANAGEMENT AND DESIGN PUBLIC VERSION 11 December 2008 Table of contents

More information

A Cheap And EZ HDTV Antenna Project Here s an inexpensive way of helping along that new

A Cheap And EZ HDTV Antenna Project Here s an inexpensive way of helping along that new THE ANTENNA ROOM by Kent Britain, WA5VJB A Cheap And EZ HDTV Antenna Project Here s an inexpensive way of helping along that new Digital TV converter you just got with the government HD converter coupon

More information

wavelength 2 cycles wavelength 4 cycles

wavelength 2 cycles wavelength 4 cycles Waves Frequency: Cycles per second But that is too simple so instead we call one cycle per second a Hertz (Hz) 1000 cycles/second = 1000 Hz = 1 kilohertz = 1 khz 1,000,000 Hz = 1 megahertz = 1 MHz 1,000,000,000

More information

wavelength 2 cycles wavelength 4 cycles

wavelength 2 cycles wavelength 4 cycles Waves Frequency: Cycles per second But that is too simple so instead we call one cycle per second a Hertz (Hz) 1000 cycles/second = 1000 Hz = 1 kilohertz = 1 khz 1,000,000 Hz = 1 megahertz = 1 MHz 1,000,000,000

More information

40 Meter Mini-MOXON Beam Antenna. Designed, built, and presented by: Al Koblinski W7XA

40 Meter Mini-MOXON Beam Antenna. Designed, built, and presented by: Al Koblinski W7XA 40 Meter Mini-MOXON Beam Antenna Designed, built, and presented by: Al Koblinski W7XA Design goals Some forward gain Good directivity (high F/B and F/S ratios) Relatively small size Good Bandwidth (min.

More information

Low Power Contesting (100watts and a wire antenna) Jay KT5E

Low Power Contesting (100watts and a wire antenna) Jay KT5E Low Power Contesting (100watts and a wire antenna) Jay KT5E Low Power Contesting 100 watt rig A simple wire antenna A microphone OR A paddle Low Power Contesting Agenda What is contesting Why contesting

More information

Analysis of the G3LTF Dual Band Feed for 23cm and 13cm Paul Wade W1GHZ 2004 w1ghz@arrl.net

Analysis of the G3LTF Dual Band Feed for 23cm and 13cm Paul Wade W1GHZ 2004 w1ghz@arrl.net Analysis of the G3LTF Dual Band Feed for 23cm and 13cm Paul Wade W1GHZ 2004 w1ghz@arrl.net In the March 2004 edition of the RSGB Microwave Newsletter, G3LTF described 1 a dual band feed for the 23 cm and

More information

Effects of Number of Radials on Portable Vertical Antenna Performance

Effects of Number of Radials on Portable Vertical Antenna Performance Effects of Number of Radials on Portable Vertical Antenna Performance By: Mark Forbes, KC9C The Ventenna Co. LLC www.ventenna.com kc9c@ventenna.com SUMMARY During the development of the Ventenna HFp portable

More information

HF Antenna Modeling and Construction

HF Antenna Modeling and Construction HF Antenna Modeling and Construction Wayne Freiert WB2LYL Joe Hood K2YA Introductions Wayne Freiert - WB2LYL Extra Class Amateur Licensed since 1963 Retired Electrical Engineer Manager Joe Hood K2YA Extra

More information

antennex Issue No. 122 June 2007 Page 1

antennex Issue No. 122 June 2007 Page 1 High Performance Cubical Quad Antennas 3 rd Edition by John Koszeghy, K3BB: a Review L. B. Cebik, W4RNL John Koszeghy, K3BB (ex-k2ob) has had a love affair with quad beams for 45 years. Indeed, he subtitles

More information

BSA Technical Information

BSA Technical Information BSA Technical Information Electrical Isolation of Co-Located Horizontally and Vertically Stacked Antennas Introduction: Service providers are facing rapidly increasing pressure from zoning boards to co-locate

More information

Report of WSPR tests in France from july 2008 to december 2009

Report of WSPR tests in France from july 2008 to december 2009 January 2010 / JMdM/F2MM-v1 Report of WSPR tests in France from july 2008 to december 2009 1-Introduction : F2MM, Jacques MEZAN de MALARTIC In mid 2008 a small group of French VHF users located in Paris

More information

Antenna Tuners (Antenna Couplers) 6/1/2011 Larry Benko, W0QE 1

Antenna Tuners (Antenna Couplers) 6/1/2011 Larry Benko, W0QE 1 Antenna Tuners (Antenna Couplers) 6/1/2011 Larry Benko, W0QE 1 What is an Antenna Tuner? An antenna tuner (coupler is a more correct term) is an impedance matching device which minimizes mismatch loss

More information

Cheap Antennas for the AMSAT LEO's Kent Britain -- WA5VJB

Cheap Antennas for the AMSAT LEO's Kent Britain -- WA5VJB Cheap Antennas for the AMSAT LEO's Kent Britain -- WA5VJB Cheap LEO Antenna Drew, KO4MA, using the Cheap LEO antenna during a Dayton AMSAT LEO Demonstration Hand held dual band antennas are popular for

More information

H.F. Antenna Analysis

H.F. Antenna Analysis Dr. John A. Allocca, WB2LUA, 2004 H.F. Antenna Analysis Theoretical Antenna Patterns 1/2 Wave Horizontal Dipole Antenna - 7 MHz Height (feet) Take Off Angle (deg) 17.2 90 34.4 61 51.6 38 68.8 28 86.0 22

More information

FIELD TUNING INSTRUCTIONS FOR 4-CAVITY BpBr CIRCUIT DUPLEXER HIGHLIGHTS

FIELD TUNING INSTRUCTIONS FOR 4-CAVITY BpBr CIRCUIT DUPLEXER HIGHLIGHTS FIELD TUNING INSTRUCTIONS FOR 4-CAVITY BpBr CIRCUIT DUPLEXER WP-604 WP-609 WP-612 WP-621 WP-629 WP-639 WP-641 HIGHLIGHTS (1) The duplexer is factory-tuned to the exact frequencies appearing on the decal

More information

M2 Antenna Systems, Inc. Model No: KT34M2

M2 Antenna Systems, Inc. Model No: KT34M2 M2 Antenna Systems, Inc. Model No: KT34M2 10m f, MHz G, dbi F/B, db 28.0 7.3 18 28.2 7.3 23 28.4 7.4 25 28.6 7.5 24 29.2 7.6 20 15m f, MHz G, dbi F/B, db 21.0 6.9 19 21.1 6.9 22 21.2 7.0 24 21.3 7.0 24

More information

TRANSRADIO SenderSysteme Berlin

TRANSRADIO SenderSysteme Berlin 1E-8920-810-DO Waniewski Contents 1.0 Introduction 2.0 Design of antenna tuning unit as diplexer and operational values 3.0 Measured value of antenna impedances for 135.6 khz 4.0 Measured values of impedances

More information

ICT / Telecom. The Path to Progress. The Choice to Grow. Solutions & Services Provider

ICT / Telecom. The Path to Progress. The Choice to Grow.  Solutions & Services Provider Office: 1 647 478 9209 Fax: 1 647 478 9319 Email: ease@aasania.com Broadband Wireless Wireline broadband Broadband VSAT IoT & M2M ICT / Telecom Solutions & Services Provider The Path to Progress The Choice

More information

Transmitter: Convert message to radio frequency (RF) voltage. Antenna: Convert RF to propagating electromagnetic (EM) wave

Transmitter: Convert message to radio frequency (RF) voltage. Antenna: Convert RF to propagating electromagnetic (EM) wave Antennas 101 Eric Hansen, KB1VUN How does radio work? Transmitter: Convert message to radio frequency (RF) voltage Antenna: Convert RF to propagating electromagnetic (EM) wave Propagation path Antenna:

More information