¿ªÔÆÌåÓý

  1. Yaesuft301d
  2. Messages
Expanded Topics Messages Polls
Date
Re: WELCOME

 

I am blocked uploading the Elcon display replacement doc.
What gives?
Re: FT-301D Restoration

 
Edited

I had to learn a lot about the IF Board on the road to final diagnosing my SSB low power out problem.
IF Board Q403 description lies. It does not amplify the DSB signal coming from the AF Board.
The gain of the weird JFET circuit Q403 is about .3 unity gain.
The circuit is a buffer/impedance matching circuit.
Also, the IF Board schematic has 2 major errors.

Is there an Yeasu internal doc that shows ANY levels on board pins?
Yeasu seem to be devoid of any levels in their docs.
Re: SSB Filter Mod Posted in Files in the Modifications Folder

 
Edited

I need to ask Roland about his instructions for this mod.
It says to put 2 150uh chokes in series but his Figure 3 only shows one choke.
Hopefully he installed a 300uh choke before he took the pic
I will post what he says.
Re: FT-301D Restoration

 

Randy sounds like you are getting a great handle on putting another FT-301D on the air.? Congratulations.
SSB Filter Mod Posted in Files in the Modifications Folder

 

The Elcon modification to the FT-301D filter board is now posted in the Files section.? Elcon claims the skirts of the SSB filter are improved through a better, more precise termination of the filter.
FT-301D Restoration

 

Hello,

I have begun an attempt to make one good one out of two parts rigs. So far so good. The big problem so far is a bad SSB filter, waiting on delivery of a parts rig with 2 filter boards. Hopefully one filter will play. This is a very interesting little transceiver.?

Cheers all,

Randy
Re: WELCOME

 

In the Files section is a copy of the Operations and Service Manual, and the ARRL QST review of the transceiver.? The Photos section includes a folder of the sales brochure for the transceiver.
WELCOME

 

WELCOME TO THE YAESU FT-301D USER GROUP.? Looks like this is a good place for messages, tips, questions, photos, files, and all other FT-301D amateur radio fun.? The FT-301D was marketed starting in 1977 and was a transceiver well ahead of it's time in features and design.? I hope ham radio operators will find the Yaesu FT-301D user group a welcome addition to io.groups.? I have enjoyed my FT-301D since I originally purchased it new in 1978 at a ham radio store in Lincoln, NE.

Have Fun

Rex K0KP
EN36 at Fish Lake 15 mi. NW of Duluth, MN USA
?
421 - 428 of 428