MACOM MDX or Orion?
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- apco25
- Posts: 2685
- Joined: Tue Oct 30, 2001 4:00 pm
- What radios do you own?: APX / Astro 25 / Harris
MACOM MDX or Orion?
Anyone know if these will work on 902 ham? That is the 900Mhz edacs models. Probably a long shot, but they are available mightly cheap for such a good radio.
There are few floating around on ebay right now.
There are few floating around on ebay right now.
"Some men just don't know their limitations"
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- Posts: 129
- Joined: Mon Sep 17, 2001 4:00 pm
M/A com--
Just picked up a 900 MRK I--Will post results after hooking up. Have seen 800's--this is first 900 I have run across. Later--Blitz.
Re: MACOM MDX or Orion?
I have a hardware fix for the 900 MDX and 900 MTD's which is in the field for eval as beta. It is a processor which interrupts the pll and micro to translate commercial to ham on the fly. There is no sw fix as I have made it one of my studies for the last 5 years... to no avail.. firmware issues... So I built a plug in -drop in board to fix it.. I can make them available for those interested... Doug KB8GVQ
apco25 wrote:Anyone know if these will work on 902 ham? That is the 900Mhz edacs models. Probably a long shot, but they are available mightly cheap for such a good radio.
There are few floating around on ebay right now.
Well it is plug in in place of the header strip which connects the logic and rf board from the bottom. Pull the old jumper assy, cut the shields for clearance of the board and plug it in, up from the bottom. Solder 1 ptt wire to the accy header, and replace foam and bottom cover...
Program as commercial with specific 935-941 being mapped to 918,919,920,921, 926,927 pairs....simplex too.. Does not interfere with scan although priority from a 927 among 918's usually causes missed calls but can only do so much with vco swing time.. The radio never knows the difference..however it only ever needed to transit 6 mhz on rx, we are pushing it 9 and those are below the desigbned band. Some specimens do not like 918 ... Filters need to be changed too if you want below 927.. just like all other 935 receivers.... Murata like maxtrac etc... or Toko as on ebay right now....
Preassembled surface mount board, I have not exactly established a price as I am still in proto phase but pre-production maybe about ~$65.00 USD ea... maybe lower if i can reduce board cost...
Doug KB8GVQ
Program as commercial with specific 935-941 being mapped to 918,919,920,921, 926,927 pairs....simplex too.. Does not interfere with scan although priority from a 927 among 918's usually causes missed calls but can only do so much with vco swing time.. The radio never knows the difference..however it only ever needed to transit 6 mhz on rx, we are pushing it 9 and those are below the desigbned band. Some specimens do not like 918 ... Filters need to be changed too if you want below 927.. just like all other 935 receivers.... Murata like maxtrac etc... or Toko as on ebay right now....
Preassembled surface mount board, I have not exactly established a price as I am still in proto phase but pre-production maybe about ~$65.00 USD ea... maybe lower if i can reduce board cost...
Doug KB8GVQ