Service manual

Answer: The diameter is 0.190"; the length is 31.875".
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Product: Discone Scanner / Ham Base Station Antenna Cat. No.: 200-0043
Question: What are the frequencies of the bottom radials?
Answer: What is being referred to as "radials" are the radiating (or center) elements. In a discone antenna, the horizontal elements are
connected to the shield and the cone is connected to the coax center conductor. The actual configuration is an upside down half-bow-tie. It is
the width of the cone ( vs. the cone's length ) that gives this antenna its broad band performance (the discone is 30 - 1300 MHz; the vertical
whip is resonant in the 10M ham and 11M CB bands, for total 25 - 1300 MHz performance).
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Product: UHF/VHF Base Antenna Cat. No.: 200-0176
Question: How is it mounted and does it come with cable?
Answer: You can use other mast mounts to mount this; it uses U bolts. It does not include cable.
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Product: 9-Volt Scanner Adapter Cat. No.: 200-0188
Question: What replaces this adapter?
Answer: This was a 9V, 300 mA (minimum) adapter with a 1.3 mm / 3.4 mm plug. The
273-1810 DC/DC adapter meets these requirements and
includes the correct plug. The
273-1767 AC/DC adapter meets these requirements and comes with your choice of one free adaptaplug. You will
need the "H" size adaptaplug, Cat. No.
273-1711.
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Product: Headphones with Earpad Cat. No.: 200-0282
Question: How much noise do these block out?
Answer: These use passive noise reduction and are not rated in dB.
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Product: Headphones with Earpad Cat. No.: 200-0282
Question: What is the sensitivity (dB rating)?
Answer: Sensitivity = 100dB +/- 5dB @ 1khz
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Product: Koss Speedzone Headset Cat. No.: 200-0284
Question: How much noise do these block out and what is it designed for?
Answer: These use passive noise reduction and are not rated in dB. They are ideal for hand-held race scanners.
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Product: Koss Speedzone Headset Cat. No.: 200-0284
Question: What are the specifications on these headphones?