Chicago Industrial Reuse and Parts Blog-Newsgroup > North Chicago
> New
> Industrial
> Metalworking
> Palstar BT1500A balanced antenna tuner double l
Palstar BT1500A balanced antenna tuner double l
Double L Balanced Antenna Tuner
The BT1500A is a dual-roller balanced L antenna tuner that fills the void for a matching network up to 1500 watts pep for balanced line antennas. For ease of use the BT1500 utilizes only 2 controls to operate for tuning with two direct-coupled precision ceramic roller inductors. As on all Palstar tuners the front panel and top cover are powdercoated.
The Benefits of a Balanced Tuner
Joel Hallas described the problem many antenna tuners experience in his September 2004 QST article on balanced tuners. He wrote, "unfortunately, the typical random sized center-fed antenna with random length ladder line feed has an impedance at the feed point that varies dramatically with frequency. The result can be heating and loss (and occasional damage) at the balun...the classic solution has been the use of an inherently balanced tuner."
In his QST article Joel Hallas reviewed the Palstar AT1500BAL as a high-power solution for amateur enthusiasts looking for a balanced tuner. The engineers at Palstar took the AT1500BAL and reengineered the entire tuner inside and out reintroducing it as the BT1500A balanced antenna tuner. Palstar engineering incorporated into the BT1500A the technology found in our popular WM150 watt meter to provide dual cross-needle metering with active peak and peak hold making the BT1500A a fully-loaded balanced antenna tuner for amateur enthusiasts who want to take full advantage of the benefits of running a balanced antenna tuner.
Check out the user reviews on eHam.net about the: BT1500A - click here
Power rating 1500 watts pep
Relay switched Hi-Z/Low-Z impedance range
Relay switched Hi-C/Low-C variable capacitor
Total inductance of 44uH for greater impedance range on 160m
Matching range: 160m - 20m (2500+/-j2500)
Band coverage from 160m to 10m
Two silver plated ceramic body roller inductors crank handle driven
Low minimum dual capacitance variable capacitors @960pf/65pf/4.5Kv with vernier drive for smooth accurate tuning
Crossneedle metering with backlighting (wall transformer supplied)
Powdercoated front panel and top cover
Dimensions: 13" wide x 6" high x 16"deep
