no tuner

49 links

KK5BL How To Build A G5RV Antenna - How to build a G5RV Transmitting antenna Originally posted to the packet bbs system by KC6CFF. The G5RV is an easy-to-build 80-10 dipole requiring no traps. All bands are covered, including 30, 17, and 12. The G5RV has high SWR, by design, on most bands and a tuner is required
[ Hits: 25188 | Votes: 7 | Rating: 6.15 ]

A new stacked multiband dipole array - A new multiband version of the lazy-h for 10, 15 and 20m. No tuner needed.
[ Hits: 907 | Votes: 2 | Rating: 8 ]

A better antenna-tuner balun - Which balun to use? The hybrid balun promises advantages over both voltage and current baluns by ZS1AN
[ Hits: 23095 | Votes: 11 | Rating: 5.83 ]

Homemade Carolina Windom antenna - This multiband wire antenna it is an off centre fed dipole, with 10 feet of vertical radiator, needs no tuner on 40m, 20m and 10m and works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m.
[ Hits: 8187 | Votes: 12 | Rating: 7.58 ]
No tuner HF bands Center-Fed Antenna - HF Horizontal Center-Fed Antenna
[ Hits: 18169 | Votes: 10 | Rating: 8.81 ]
W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.
[ Hits: 1710 | Votes: 1 | Rating: 10 ]

Homebrew your own inductors ^pop - Cannot find the inductors you need for an antenna, a tuner or amplifier ? Build your own it is easy!
[ Hits: 28524 | Votes: 21 | Rating: 6.95 ]

Do You Need an Antenna Tuner - Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format
[ Hits: 22952 | Votes: 12 | Rating: 4.58 ]
W8ZR High-Power Antenna Tuner - This homebrew legal-limit antenna tuner is based on the famous "Ultimate Transmatch" introduced by the late Lew McCoy, W1ICP. The Ultimate Transmatch was described in the "Beginner and Novice" section of the July 1970 QST (Page 24).
[ Hits: 11496 | Votes: 10 | Rating: 8.1 ]
Getting the most from your tuner - Here is how to adjust this popular tuner circuit so it transfers maximum power to your antenna without going snap
[ Hits: 2827 | Votes: 3 | Rating: 6.33 ]
Emtech ZM-2 Antenna Tuner Kit - The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).
[ Hits: 3431 | Votes: 6 | Rating: 5.33 ]
MFJ-940 modification - The MFJ-940 VERSA TUNER II is a useful little antenna tuner for the HF-bands. However it suffers from a minor design error, which can be easily rectified.
[ Hits: 2647 | Votes: 2 | Rating: 7.5 ]

9 band vertical HF antenna by RW3XA ^pop - Simple vertical radiator with matching box. No traps, no tuner required for this multiband antenna
[ Hits: 38750 | Votes: 43 | Rating: 7.34 ]
G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance
[ Hits: 4679 | Votes: 4 | Rating: 7 ]

ZS6BKW variant of the G5RV - The ZS6BKW variant of the G5RV claims to offer multi-band coverage without the need for a tuner. This article looks at whether or not these claims are valid in a real life installation.
[ Hits: 7997 | Votes: 12 | Rating: 7.75 ]

VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
[ Hits: 3424 | Votes: 5 | Rating: 5.4 ]

CQ Shop Ham Radio Store Hong Kong - Hong Kong's only full-service amateur radio store. Full line of Amateur Radio and Two-way equipment and accessories from companies such as Yaesu, Icom, Kenwood, Motorola, MFJ, Alinco, Diamond, AOR and many, many more. Knowledgeable staff with many years of experience in the radio business TAX-FREE shopping (no sales, VAT, GAT or other taxes) HF, VHF, UHF transceivers, receivers, walkie-talkies, antennas, antenna tuners, coax and connectors
[ Hits: 9704 | Votes: 17 | Rating: 4.47 ]

EasyTuner - Easytuner id an excel spreadsheet that tunes your radio. Works with all Kenwood and Icom receivers and transceivers that are computer-controllable. Sets receiver and transmitter frequency and mode
[ Hits: 3141 | Votes: 2 | Rating: 10 ]

RevLoad - This graphics-intensive program reveals the load on the output of a matching-network, based on measurements of the components in that network. Adjust the network (tuner) for a flat input, measure or look up the network component values and you will immmediately see the R and jX values of the load on the network, presented as both a schematic with the component values and as a Smith Chart normalized to the specified system impedance.
[ Hits: 698 | Votes: 1 | Rating: 10 ]