“It’s built like a TANK!” – K0CWO, CW4 BJ Voute, U. S. Army<\/p><\/blockquote>\n
The American made AT5K is a unique high-power tuner in the American Ham tradition. This tuner has been nick-named the “Rock Crusher” and is fast becoming the tuner of choice among Hams who demand the best and most robust antenna tuner on the market.<\/p>\n
The typical unbalanced tuner with a 4:1 balun at the OUTPUT exposes the balun to a wide variety of impedance and reactance that it was never designed to handle. Palstar’s AT5K, like its AT4K little brother, has a T-matching network utilizing a 1:1 unbalanced-to-balanced transformer at the INPUT of the network. When the network is properly tuned, a 50 Ohm impedance will be presented both to the input and output of the balun, which allows it to properly perform its important transformation job.<\/p>\n Inside the AT5K you’ll find massive custom large-plate (600 pF) variable capacitors rated at 6 kV. This high capacitance means unsurpassed performance on 160 Meters, while specially designed non-metallic end plates allow a minimum capacitance of only 23 pF for 10 Meter tuning, unusually low for a variable capacitor this large. Equally massive is the 35 ?H, 10 Amp, 7 kV, Ceramic-body inductor, which is wound with 10 Ga. plated copper wire with silver-plated wheel shaft and contact wheel, .<\/p>\n Also, Palstar engineering has incorporated the technology found in our popular PM2000A wattmeter into this tuner to provide dual cross-needle metering with active peak and peak hold ($149.95 value).<\/p>\n Specifications:<\/strong><\/p>\n 3500 Watts single tone, low tuner losses and wide Z range![\"\"](\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2012\/02\/Screen-Shot-2012-02-14-at-6.47.40-PM.jpg\" "\\"Screen")
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\n160m to 15m with limited Z range on 10m
\nBalanced OUTPUT with high power 5 kW TEFLON wire balun at the INPUT of tuner circuit
\nCustom, large plate variable capacitors (600pF @ 6 kV)
\n10 Amp 7 kV CERAMIC 3.25″ body roller inductor (35 ?H) wound with 10 Ga. plated solid copper wire
\nSilver plated wheel shaft and contact wheel
\nSix-position switchable antenna input switch with 7 kV, 10 Amp contacts
\nFerrite 1:1 input balun
\nLED Backlighting
\nPeak and Peak Hold dual cross-needle metering (1-2 sec hold) with backlighting
\nChassis and top cover are 11 Ga. (.090″) aluminium iridite coated and top cover is powder coat finished
\nFan cooling for extended 100% duty cycle operation
\n(For US Domestic\/Canada)Power Connector and Power Cable Supplied
\nDimensions: 16 1\/4″ wide x 8 1\/4″ high x 19 3\/4″deep (including knobs and connectors)
\nWeight: 30 lbs<\/p>\n