#Icom ic 756 pro ii manual

Automatic and manual notch filters (manual notch inside AGC loop).Sharp and soft IF filter shape factors are independently selectable for SSB and CW (as in the IC-756Pro II and IC-756Pro III) ICOM also presents the new IC-746PRO transceiver, with 'Supercharged PerformanceРІР‚Сњ, all the features of 756PROII and a bonus: 144-148 MHz! The IC-746Pro offers thefollowing new features: B) IC-746PRO (IC-7400 in Japanese & European market)

50 MIPS, 20 ns Instruction Rate, Single Cycle TimeР”Р‡ig.

Four independent Buses for Dual Data Instructions and I/O.

#Icom ic 756 pro ii software

In this project, the new DSP filter was heavily redesigned in software (with little modification in the circuits), butretained the same DSP chipset: Analog Devices ADSP 21061L Sharc ADSP 21061L Specifications:

With this design, ICOM achieves the lowest distortion possible. РІР‚вЂњ as distinct from conventional receivers, which have a mechanical or crystal filter before the third mixer. This change allows enhanced filtering after the third mixer, where the input bandwidth is limited only to 15kHz. The third mixer was completely redesigned, and now converts 455kHz signals to 36 kHz to be passed into the 24-bit A/D converter.

ICOM has redesigned several RX stages of the 756PRO.

In addition, the 756PROII uses new Motorola PIN diodes for signal switching in the RX front end to reduce the distortion. Inductors and capacitors used in the 756PRO BPF generated distortion thus, the 756PROII has much bigger inductors than the 756PRO. In the front end of the RX, the first mixer and RF bandpass filters (BPF) have been redesigned.

Improved receiver 3rd-order IMD characteristics and wide dynamic range.

Sharp and soft IF filter shape factors are independently selectable for SSB and CW.

DSP filters: The user can select the shape factors of the filter.

4.9-inch color TFT LCD (New fonts and wallpapers available).

The following improvements/added features have been incorporated into the IC-756PROII:

A New CW Keying Control for Studio A.ICOM has taken the DSP technology introduced in the 756PROII, and created a whole new radio category with the 746PRO.It is interesting to compare the two rigs, which present very similar performance and were launched on the market almost at the same time.

Software, the violet curve is before mods, the white curve is after One of the pics here is the filter as modeled in Result was awesome.full power right up to the edge of the 60m band and This moves the knee of the filter from 5.25mhz to 5.6 mhz. Units in the standard and Pro II are physically a little different, theР”В¬ircuit was the same.

#Icom ic 756 pro ii manuals

The manuals and board layouts against each other, and while the filter He came up with a few capacitor changes to alter the upperР”В®nd of the filter response to fix the problem in the Pro II. Some filter design software, and modeled the 80m filter to see where the Internet had the IC-756 Pro II and modified his for 60m coverage as IР”Вid, and had the same problem with low output power. Matrix is setup to use the 80m low pass filter up to 6.0 mhz, where it When I first modified the processor, as I had seen numerous bits around the web for adding 60m, i t worked 'OK',Р”В«ut would only put out about 50% power on 60m.

Icom ic-756 pro ii