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Author Topic: Yaesu 8900 AM mode  (Read 6447 times)
KJ4SKP
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Posts: 69




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« Reply #15 on: January 23, 2013, 06:29:52 PM »

Thanks Dave, sounds like a great antenna set up.
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KJ4OBR
Member

Posts: 103




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« Reply #16 on: January 25, 2013, 05:49:20 AM »

Thanks, The Maldol is a compromise antenna but performs well at 2/440. On 6m it is just OK. I'm going to try adding another diplexer to split out 2 and 6 from 440 and swap the Maldol for a Larsen NMO50 5/8ths wave 2m which loads very nicely as a 1/4 wave 6 meter antenna. I just need to punch a hole on the roof of the Jeep for the 440 whip when things warm up and I can find the time.

73
Dave

Thanks Dave, sounds like a great antenna set up.
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KC2VQG
Member

Posts: 3




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« Reply #17 on: June 28, 2013, 07:52:46 AM »

For a technician class the 8900 cannot be used on 10.  A general can use it on the FM portion as the prior poster said.

Correction: "may" vs "can" and "may not" vs "can not"
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K3GM
Member

Posts: 1767




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« Reply #18 on: June 30, 2013, 01:17:28 PM »

The way I have my FT-8900 set up is as follows.  Coming out of the radio I go into a Diamond MX-610 "diplexer".  The diplexer has one input and two outputs.  One one of the outputs goes to an tri-band antenna which provides 6m, 2m, and 70cm.  The other output goes to a 10m antenna, in this case a Larsen NMO27.  As the previous poster indicates, you can put whatever antenna you desire on the output of the diplexer provided it is designed for the band you wish to operate in.

There is also a way to run 4 separate antennas with a readily available diplexer and triplexer. It is as follows:

-Output of the FT-8900 and run it to the input of a Diamond MX-610 Diplexer.
This has 2 outputs, 1.3-30MHz and 49-470MHz. Attach your 10m antenna to this
port.

-Attach the 49-470MHz port of the MX-610 to a Comet CFX-514J Triplexer. This
triplexer has outputs for 6m,2m, and 70cm.  It's very important to purchase the "J" suffix as
the outputs of this triplexer are SO-239's so you can plug the PL-259's from the
antenna mounts directly into the triplexer eliminating any lossy gender
changers. The only jumper you'll need is from the FT-8900 to the input of the MX-610.
« Last Edit: June 30, 2013, 01:30:48 PM by K3GM » Logged
KA7RRA
Member

Posts: 108




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« Reply #19 on: July 16, 2013, 02:36:52 AM »

had the 8900 had side and on it, I would have bought one in a heart beat
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