IC-7100 MARS/CAP Modification

IC-7100 MARS/CAP Modification

Remove the following diodes to open the referenced frequency ranges.

In the IC- 7100 the radio frequency range can be opened in various configurations. The chart below describes four radio frequency range configurations and the specific diode(s) that enable that configuration. Select only one of the four configurations.

Note Frequency range and specifications cannot be guaranteed after modification

ICOM IC-7100 Why Should I buy

I have an IC-7100. All of those 45 aurora contacts made on 17 March were made using it.

I am asked would I recommend it. Well, yes, if you know what you are letting yourself in for.

Plus features are many - small size of the control unit, nifty touch screen controls, reasonable price, RF DSP, 4m for Europe, good frequency stability for data modes, USB lead to PC allowing direct audio in/out for data, DStar, coverage up to 70cms, ....

The snags I have experienced and my solutions are - low output powers on SSB (needs separate microphone with compressor), "clicking noise" (not a big thing, I am ignoring it), RF getting back into the control cable (use a short screened ethernet cable CAT6 or higher), deep cut on AGC a problem with QRN (electric fence problem in my case, turn AGC off).

ICOM IC-7100 ALC modification to get full TX power on SSB

ICOM IC-7100 ALC modification to get full TX power on SSB

Icom IC-7100 Unboxing

Icom IC-7100 Unboxing

Icom IC-7000's started arriving at all Ham Radio Outlet locations this week, so I took the opportunity to stop in and pick one up. This is the first mobile HF rig with D-Star Capability, allowing a user to use DV mode on the HF bands like on the Icom IC-9100. This radio further establishes Icom's new paradigm for how users interact with D-Star by including GPS enabled "Near Repeater" functionality, full D-Star Repeater Lists, and the list of all D-PLUS Reflector nodes.

Using "DR Mode" with Icom's IC-7100

Demonstrates how to use "DR Mode" with Icom's IC-7100.

Icom IC-7100 VHF UHF D-Star Walkthrough

Icom IC-7100 VHF UHF D-Star Walkthrough
I demonstrate many of the menus and features of the new Icom IC-7100 in this video.

[Icom_IC-7100] Low power output on ssb

A number of users have commented that the average power output of the IC-7100 on SSB, as measured on a moving coil power meter appears low compared with other transceivers. Having made some bench measurements it would appear that this is not so much a fault but rather a result of the very effective ALC on the radio that prevents it being overdriven. A correctly driven SSB transmitter should show the following approx power measurements :
                         Measured on moving coil meter              Measured on PEP reading meter                   Measured on Oscilloscope

Single Tone input                                   100W                        100W                              100W (peak)
Two tone input                                        40W                         100W                              100W (peak)
Speech input                                       12-20W                        100W                              100W (peak)

The reason for the lower reading on the moving coil meter is due to a number of factors including the inherent inability of this type of meter to follow a rapidly changing speech waveform.

Only a true PEP meter or oscilloscope will give a true indication of PEP, cheap wattmeters with a supposed PEP indication often have no more than a capacitor switched across the meter which again will not give a correct power indication.

A new HAM

Download IC-7100 Firmware Version E1

Reviews Summary for ICOM IC 7100

http://www.eham.net/reviews/detail/11080


Reviews Summary for ICOM IC 7100

	Reviews: 101	Average rating: 4.4/5	MSRP: $1600
	Description: A new Mobile HF,VHF and UHF Tranceiver from ICOM,.
	Product is in production.
More info: http://www.icomamerica.com/en/products/amateur/hf/7100/default.aspx