Page 1 of 1

Superstar 3900

Posted: Wednesday 19th Nov 2008, 4:36
by naxxon
Hi guys, great site!

Ive reading thru the forums but find nothing that can helps me.
Im new in radio world.

I get a licence to transmit in 10 meters but my radio (superstar 3900 EPT 360014b board) covers 11 meters and just a little portion of 10 meters.
In my coutry it is forbbiden to transmit in 11 meters.
can anyone helps me to mod this radio to tune 10 meters?

Ive tried the mod of 12 and 13 pin of the IC7, but doesnt worked out.

Any sugestions?

NAcho.

Re: Converting Superstar 3900 to 10 meters.

Posted: Wednesday 19th Nov 2008, 7:16
by Rick
If your radio is fitted with the X2 crystal of 14.010 MHz then replace crystal X2 with 15.360 MHz.

You will need to do a full realignment on the radio.

Superstar 3900

Posted: Wednesday 19th Nov 2008, 7:41
by naxxon
mmm.....Realignment...
I think ive seen a realignment procedure somewere...
can it be done by an amateur??... isnt there an alternate way?

Thanks a lot for your help

Re: Converting Superstar 3900 to 10 meters.

Posted: Wednesday 19th Nov 2008, 11:51
by Rick
You need the right test gear to do the job right.

RF signal generator (100 MHz).
RF power meter and dummy load
A standalone frequency counter (at less 6 digit).
10 to 1 probe
SINAD meter.

There are no short cutes

Superstar 3900

Posted: Wednesday 19th Nov 2008, 11:56
by naxxon
You need the right test gear to do the job right.
Thats true for almost everything ;) hehehe

Thanks a lot !!