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Icom IC-R7100

This page lists links, related pages and software support for the Icom R-7100 receiver. The technical specifications can be viewed here (From the Icom website).

General Specifications

  • 25-2000MHz range
  • 900 channels - 9 banks
  • 100Hz; 1, 5, 10, 12.5, 20, 25, 100kHz; 1MHz steps
  • Dual scan operation
  • Signal meter
  • 10 search limits
  • Attenuator
  • Noise blanker (NB)
  • AFC
  • Voice squelch control (VSC)
  • Autostore (100 channels)
  • Clock/timer
  • Computer control
  • Tape recorder control
  • Icom R-7100 Specs

Filters and other Mods

Setting the Output Baud Rate on R7100 Using the Keypad by Greg Knox

1. Turn power OFF
2. While pushing the following keys, turn power ON:

Baud Rate Keys
9600 ENT + 5
4800 ENT + 6
1200 ENT + 7
300 ENT + 8

Reviews and User Opinions

Related Pages

  • Universal Radio R-7100 page
  • Javiation R-7100 page
  • Donner's Rig Control page
  • Radio Database International published a White Paper on this receiver which can be ordered here
  • Icom manuals
  • R-7100 Service manual (28MB-Pdf)
  • R7100 Discriminator Tap Notes
  • Here is a schematic (PDF file) for an interface used with Trunker and a Icom IC-R7000. For this example, a PRO-43 scanner is used to obtain the data channel. The interface obtains power from the Icom, so there is no issue with weak ports not being able to power the slicer. The IC Chip used is a MAX203 for minimum parts count, but a MAX232 would work just as well. The MAX203 can be obtained from Digi-Key. This interface has also been tested with an Icom R7100. This interface may also work for other radios that use TTL serial levels if another source of 9-12V is available, or 5V if the regulator is left out. (Thanks to Gene!)

Supporting Software

Yahoo Groups and Mailing Lists (software and receiver support)

eBay Listings

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