Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Kenwood TM-742A with "Rushing Sound on Transmit and Receive  (Read 1317 times)
KR6J
Member

Posts: 2




Ignore
« on: February 13, 2012, 03:21:17 PM »

I have a TM-742A and the 440 module has a rushing sound on transmit and receive. The sound as best as I can describe it is almost like a light, constant breeze blowing over a microphone. I've contacted Kenwood but they were of little help.  Huh

If anyone has any suggestions, I'm all ears.


Thanks,

Kenan, KR6J
Logged
KB5ZSM
Member

Posts: 70




Ignore
« Reply #1 on: February 13, 2012, 11:54:01 PM »

I'm confused. You say on TX & RX but then your description makes it sound like your saying what the other person hears when you transmit. If that's the case I would check your 440 module schematics (mine is in storage so I can't look at it) and follow the audio trail. A scope would be handy here or a signal tracer. It could be as simple as reseating your connections to the module.
If worst comes to worst, I know there is a guy on Ebay that rebuilds those modules and you could probably get a good price on a rebuilt module with trade-in of your bad module. Or he might be able to tell you what is wrong with yours. Just go to ebay and do a search for KW TM-742 or 741 and you may be able to find him.

Good Luck! Those are a good radio
Logged
KE4DRN
Member

Posts: 3728




Ignore
« Reply #2 on: February 14, 2012, 06:20:40 PM »

hi,

http://myworld.ebay.com/w5cia/

join other TM-742 fans here

http://groups.yahoo.com/group/tm742/

73 james



Logged
KB5ZSM
Member

Posts: 70




Ignore
« Reply #3 on: February 14, 2012, 10:29:57 PM »

http://www.ebay.com/itm/Kenwood-UT-440S-70cm-Module-TM-741A-TM-742A-FREE-SHIPPING-ConUS-/160673998452?pt=LH_DefaultDomain_0&hash=item2568eaa674

This link will take you to one that is reasonably priced but I don't think this is the guy I was telling you about in my prior post.

http://www.ebay.com/itm/Kenwood-UT-440S-UHF-3-4-Mtr-440-MHz-Module-Tri-Band-Radios-/310379506545?pt=LH_DefaultDomain_0&hash=item48440f6b71

Here is another listing

Hope this helped

73s,
Win
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!