( I am one of the rare fools who had one and sold it.)įor a closer look at the components used inside this famous matchbox, see the cover of the 1988 Annecke Catalog. In my personal opinion, this is the BEST SYMMETRICAL MATCHBOX EVER BUILT.
#HOMEMADE ANTENNA TUNER MODS#
These two mods improve the overall matching range and assur you always get a good match to any antenna, on any frequency.
#HOMEMADE ANTENNA TUNER SERIES#
Like its little brother the 200w Symmetrical Koppler, this matchbox added taps to the coil and used a 3rd variable capacitor in series with the coax on the transmitter side of the tank circuit. You are more likely to find Bird Doo in a Kuku Clock than to find one of these for sale on There were only about 20 of these ever built and basically anyone who owns one never sells it. Impedance Matching Range: 50 to 3000 Ohms.Its Link-Coupled ciruitry uses huge components you almost need 2 hands to rotate the bandswitch. It is an improved version of the famos Johnson Viking Kilowatt Matchbox. This is the ANNECKE SYMMETRICAL MATCHBOX FLAGSHIP! The only disadvantage is, you need a second cable for control. Its biggest advantage is, you can run openwier from the antenna to a point near the house, and then a well
#HOMEMADE ANTENNA TUNER MANUAL#
There are no memories, so this is a manual tuner, and a very good one at that. This matchbox circuit can be switched from High-Pass to Low-Pass, which is unique among Balanced L-Network matchboxes.
[ Legand: Available New / Available Used (only) / Home Brew (only) *This list does not include Asymmetrical Tuners which use a balun to match balanced loads.
The S-Match is not available for purchase, but is very The list includes tuners which are currently available on the market, as well as a few which are only available on the used market. Here is a list of the High Power Symmetrical Antenna Tuners available on the market. You will win the lottery or get struck by lightening before you find one of these for InĪddition, a handful of people built home-brew versions using his components. The Annecke high power Symmetrical Koppler is a much better matchbox, but you will NEVER find one. In addition, without a bit of modification, the Johnson is really not a great choice it you want your matchbox to cover a lot of bands.
A lot of the old Johnson Viking Matchboxes are pretty corroded The used market can be a good source for high power symmetrical matchbox, but again, buyer beware. Hams in the US will pay a lot less than hams in Europe, but the hams in Europe have a broader portfolio to choose from. Unfortunately new high-power symmetrical matchboxes are quite expensive. You have three sources of high power symmetrical matchboxes. Unfortunately I do not know what is available on the Asian market.If you live in the North America, you have some good choices but your choices are limited.If you live in Europe, you have many alternatives available.See the bottom of that page for more info on this. I addressed this topic separately on a previous page, SYMMETRICAL MATCHBOXES. YES they work, but NO, they don't always work as well as a symmetrical matchbox. There are a lot of high power asymmetrical matchboxes on the market which are marketed for matching symmetricalĪntennas.
0 kommentar(er)
