FT1000MP

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MENU 9-1 Setting (Before and After INRAD Mod)

Alignment: IF Gain (Procedure from Yaesu Technical Supplement)
1: Turn the transceiver off, then press and hold the FAST and LOCK buttons (near main VFO knob), and turn the transceiver on again.
2: Push FAST then ENT to get into the menus
3: Connect an RF signal generator to the antenna jack, and inject +8dbu. (this is +11dbu in some Technical Supplements)
4: Select menu function 9-1, and adjust the main VFO knob for a 1-segment S-meter deflection

Problem: There have been a lot of questions about where to set Menu 9-1, before or after the INRAD Mod ie:

"I just installed the INRAD mod for receiver sensitivity, in my 1000MP the value of menu 9-1 was set to 9, I lowered it to 7,is that the correct value, the reason I am asking is the scale on that menu item will go as high as 16, I bought the rig used and I am not sure what the default value is." 

Solution 1: The Yaesu Technical Supplement states the following:> Turn the transceiver off, then press and hold the FAST and LOCK buttons (near main VFO know), and turn the transceiver on again. > Connect the RF signal generator to the antenna jack, and inject +8dBu. Select menu function 9-1, and adjust the main VFO know for 1-segment S-meter deflection.

 

Solution 2: Menu item 9-1 will go as high as 31, not 16. The "default" value is whatever the factory set it at during final alignment. This will vary among radios Installation of the INRAD front end mod increases the gain, so you should decrease menu item 9-1 by 2 or 3 to bring the total gain back to what it was before installing the mod. Before installation of the mod, you should find a steady signal (like a local BC station) and note its S-meter reading. After installing the mod, set menu item 9-1 to the same reading on that steady signal as it was before the mod.

Another method is, after installing the mod, tune in any signal and set menu item 9-1 so that the S-meter reading on the main receiver is the same as its S-meter reading on the sub receiver. Menu item 9-1 only affects the gain of the main receiver.

73, de Earl, K6SE

 

Menu 9-1 Settings with INRAD Front End Mod

Question: I have installed the AGC and the Background Noise Reduction mod. I was curious as to the setting of menu item 9-1 for those of you who have done this mod as well. Hugh, K7XM

Solution: Every radio settings are going to be different. However the setting on 9-1 has a huge impact on weak signal readability. If you set it too high you wont hear the weak stations and too low and you will not hear them either. Here's what I did. I found the weakest station I could find (should be S-0) and I slowly went up and down with menu 9-1. I believe your original setting was 12, then I would slowly adjust between 7 and 11 and listen to see when you can understand the weak station the best (close your eyes while doing this and ignore the S meter). 73 Douglas KB9GKC

Thanks for your reply and that really did the trick. I ended up setting it to 7... 8 is also possible but after that the band-noise gets "noisy" and this is unwanted. Now I can confirm what somebody else wrote in the reflector. Sometimes the signals pop up from nowhere ... This is really amazing. Sometimes it looks like there is no antenna connected :) Thanks agn. The 1.8 filters are also very good. Just move the receive audio a few hz down and then it sounds comfortable again... but with less qrm :) 73 Christian, DL6KAC

VA3CR Note: The Technical Supplement has the following instructions for this adjustment:

1: Turn the transceiver off, then press and hold the FAST and LOCK buttons (near main VFO knob), and turn the transceiver on again.

2: Connect the RF signal generator to the antenna jack, and inject +8dBu. Select menu function 9-1, and adjust the main VFO know for a1-segment S-meter deflection.

 

 

 

 

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This site was last updated 08/27/07