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   Just GE Delta,  really fast.  (RANGR too)

Information on GE Delta and Rangr ham conversions seem to be more scarce than what is available for the older MASTR-II, MICORs, etc.

The Delta should be a rising star within the ham community due to

  • high supply due to recent FCC narrowband equipment rules changes
  • very low prices as surplus via eBay and hamfests 
  • versatility via optional control head choices
  • very high performance when compared to multi-band off-the-shelf ham rigs
  • low conversion requirements
  • relatively easy to program (if you know where to go)

That being said, we are now collecting web content specifically for the GE Delta and to a lesser extent, the the GE Rangr (a quasi-Delta built in Japan). This will not be the ultimate root source of actual Delta information but it may, in fact, be one of the best locations on where to find it. This web site is already in data collection mode with a number of "under-the-RADAR" contributors already helping out.  We will also contribute much of our own original content.

In addition, please try these sites as they are are already great sources on GEMOTO technical information, some of it being GE Delta:

Kevin Custer's great anthology of links for both MOTO and GE:

Duane Hall of Hall Electronics:

What one New Hampshire club is doing with Deltas:

Much information is already posted on these sites above but it may take time to dig through it all.  In addition, once you find the docs, the GE Delta manuals are lacking on how to perform some of the most basic installation tasks.  For example, "Where does one hook up the speaker" (seriously... and FYI don't connect one end to ground!) as well as "Which cable-end connector goes into what control head connector".   Previously, you needed to dig and manually confirm internal pin numbers and at times analyze a motherboard schematic. It was all there in the GE manuals, but it was not easy to find. We hope to improve on that.

A few "gotchas" and examples of what we hope to clarify:

  • Q: What does "narrowband" mean?
    • A- Old terminology: A Delta SX receiver that could receive all frequencies within a 30 MHz spread as opposed to 5 MHz
      (Delta- S)  SX's can be desirable for mobiles, undesirable when you are building a repeater.  Delta-S has a narrowband receiver.
    • A- New terminology:  A receiver and can receive newer modulation schemes with FCC-required 2.5 kHz modulation.  In this sense, all Deltas and RANGRs were wideband and are being retired from commercial service.
  • How are all seven models of control heads different (and similar)?
  • How are the dozen variants of control cables different (and similar)?
  • What models do what (Delta S vs SX, LB, VHF, UHF ranges plus  more)?
  • How much conversion may be needed to operate on the adjacent ham bands?
  • Where can I get the frequency PROMs programmed?
  • Where can I buy manuals? 
  • Where can I buy the radios and accessories?


Our first Delta/Rangr installments:

  • Historical perspective 
  • The basics and a few gotchas  (links very soon)
  • Radio models and control cables
  • Radio control heads
  • installation hints and basic cable interconnections (links very soon)
  • ham modifications   (links very soon)
  • manuals  (links very soon)
  • where to buy surplus radios, control heads, cables, etc.  (links very soon)
  • where to have EEPROMS programmed  (links very soon)


Stay tuned for more of...

Just GE Delta,  really fast.

New England area contributors:

Rick Zach, K1RJZ
Al Muise, K1NZQ
Kim Peck, WA1PBU

k1rjz (at sign) komcast-dot net

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