Page 1 of 1

Saber VHF AM mod ?

Posted: Mon Jun 17, 2002 9:33 pm
by hycheng
Hi there,
I know some ICOM FM HT's (IC-T7H) can be mod to Tx AM. I am just curious to know if any /\/\ot HT's can be mod to do AM ? In particular Sabers in VHF.
Thanks in advanced.
Chris

Posted: Tue Jun 18, 2002 11:01 am
by ricciticcitembo
Thats a damn good Question.
Here's another:
What Motorolat Does work on VHF Air Band?

Or do you just have to stick with Icom for that

Posted: Tue Jun 18, 2002 12:40 pm
by EKS
One of my yeasu mobiles will do VHF AM in the air band. It just takes a lot of button pushing to get it to work.

I thought standard made an air band portable as well?

Posted: Tue Jun 18, 2002 8:43 pm
by ricciticcitembo
Here goes a rackmount Helicopter Model.

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 1359642777

DO TELL

Posted: Tue Jun 18, 2002 9:36 pm
by mancow
What Yaesu unit is it that TX's on AM air?

I have the new VX-7R but it doesn't do it. Only FM.



mancow

Posted: Tue Jun 18, 2002 10:16 pm
by CHEFA2001
sHEESH, FOR THAT WEIGHT, YA COULD SINK THE TITANIC...LOL

Posted: Wed Jun 19, 2002 8:32 am
by uniradio
Hi All..

Those ham radios cited above only have RX in AM, even you can transmit in the AIR Band, these radios transmit in FM. They don´t have AM TX circuits...

If you want to TX in AM, buy a Airband radio. I have one ICA22 and I can say you that the performance it´s ten times superior that those Yaesu radios.

When I don´t receive any signal in my VX1R (in AM mode) my ICA22 receives a clear and crisp signal of the tower and air traffic control

Regards,

Bernardo

AM with FM Modulation

Posted: Wed Jun 19, 2002 10:28 am
by Caffiene
I read that you could use an FM radio to "simulate" AM by tuning the FM radio 5 KHz lower or 5 KHz higher than the AM station. As the deviation of the FM radio passes into the receive passband of the AM radio, it is seen as an "amplitiude" modulated signal.
I've been meaning to try this with an AM radio and service monitor, but never had time to do it.

Has anyone else done this?