Amateur Radio Station 2E1AYS/M0YTT

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Kenwood TS870

Digital signal processing at the IF stage is now a reality with the Kenwood TS-870S HF transceiver. DSP technology uses a dedicated computer chip to convert analog waveforms into digital information in real-time, providing the opportunity to filter and enhance the quality of the signal before it is reconverted into analog form for the human ear. This design uses two state-of-the-art 24-bit 20 MIPS DSP chips that provide for receiving enhancements to bring signals out of the noise. Imagine over 100dB out of pass band attenuation with virtually no signal loss by the DSP filter! Imagine CW bandwidth adjustable to 50 Hz. Advanced speech processing with transmit equalization that will make you the first in pile-ups! This radio also features RIT and XIT and a multifunction meter. Plus complete computer operation and control of the TS-870S is possible with supplied Windows™ software and a built-in RS-232C port [DB9].

The built-in automatic antenna tuner works on all bands in both transmit and receive modes. Supplied with MC-43S hand mic. The TS-870S requires 13.8 VDC at 20.5 amps.

Antenna

G3TXQ Hexbeam built by MW0JZE

Yaesu G-2800 SDX rotator

Palstar AT1500CV Tuner

Audio Equipment

Heil PR40

The Heil PR 40 microphone boasts the widest frequency range of any dynamic mic in the Heil PR series. The PR 40 incorporates Heil’s sage-like understanding of phasing plug placement, along with the use of a very large (1.5”), low mass diaphragm, and custom magnet metals housed in a specially designed microphone body.

The PR 40 diaphragm is shock mounted such that it is completely de-coupled from the anodized Champaign matte-finished steel body. In addition to dual mesh screens, each made with different diameter screen apertures, there is an internal breath blast filter on the diaphragm element itself, providing superb response for the human voice across the entire vocal range, without “popping” noises. In fact, the PR 40 will provide flawless, smooth, flat response from 28 Hz all the way up to the 18k Hz, making this a great microphone for everything from vocals, to bass drums and tom drums, to guitar and bass cabinet mic’ing and more.In short, the PR 40 is known by professionals as the “thoroughbred work-horse” of professional sound recording and reinforcement

Output Connection 3 pin XLR
Element Type Dynamic
Frequency Response 28 Hz - 18 kHz
Polar Pattern Cardioid
Rear Rejection @ 180 degrees off axis -40 dB
 
Impedance 600 ohms balanced
Output Level -53.9 dB @ 1 kHz
Weight 13.5 oz
Max SPL 148 dB
 
Luxo LX-1 microphone balanced microphone arm

                          Heil SM-1 Shock Mount

W2IHY 8 Band Audio Equalizer and Noise gate

 

 

 

 

You can adjust 8 bands of Equalization to give your transmit audio that rich, full, wide-band quality ideal for rag chewing.

You can adjust Equalization for an extra edge in contest and dx work. Have pileup busting penetrating audio with substantial high frequency content.
You can fine-tune your microphone for more natural reproduction of your voice.
You can make good microphones sound great and poor microphones sound good.
You can change Equalization settings instantly to switch from one audio "personality" to another.
You can match most any microphone to any radio, new mics/old mics, new radios/old radios.
You can boost low-output microphones to work great with your radio.
You can use the Noise Gate to get rid of background noise and give your signal more presence.
You can use the Noise Gate to improve VOX operation by reducing false triggers.
You can switch Equalization on or off.
You can switch the Noise Gate on or off.