On Feb 4, 5:25 pm, saki wrote:
I have a Yaesu FRG-7700 shortwave receiver, bought new in 1981, with a
problem. I haven't used it in about a year. It's been stored on a shelf
indoors.
Turning it on again I find that alignment is fine, digital readout is
fine, AM reception is fine but the radio won't hear anything above 1650
MHz except white noise. Antenna length affects volume of white noise but
there are no discernible signals, nothing that causes the s-meter to move.
I've checked the attenuator in the back (DX/Local), which works normally
in the AM frequency range. The front panel ATT, gain and mode are all
working well. I just can't get shortwave out of it. My Icom R75 and
Drake SW4-A hear signals on the same antenna used by the FRG-7700.
Is there something I should be focusing on to troubleshoot, or is this
something I should have a Yaesu/ham gear repair person examine?
Any help would be much appreciated.
----
SAKI,
Yaesu FRG-7700 Information WebPage
http://www.crocuta.com/FRG7700/index.html
http://wiki.radioreference.com/index.php/Yaesu_FRG-7700
The "Yaesu FRG-7700 Shortwave Receiver - Survival Guide
http://foxtango.org/frg7700/FRoG-7700.htm
Fox Tango International -by- Wim Penders [PA0PGA]
Modern Shortwave Receiver Survey @ DXing.Com
http://www.dxing.com/rx/frg7000.htm
Yaesu FRG-7000 General Coverage Communications Receiver
"Recently Sold" Radio Equipment @ Universal-Radio.Com
http://www.universal-radio.com/CATAL...r/frg7700.html
Yaesu FRG-7700 Shortwave Receiver
http://www.universal-radio.com/used/sold099.html
Notes: The Yaesu FRG-7700 covers 150 kHz to 29.9 MHz which is tunable
in 1 MHz bands. This multi-mode radio has a digital and analog
display. It also has a built in 12 hour clock-timer and S-Meter. There
is a carry handle on the right side. This radio has the optional
MU7700 memory unit installed which can be fine tuned.
* The Rear Panel has Dual Antenna Inputs
http://www.universal-radio.com/used/ub53rear.jpg
http://www.universal-radio.com/used/u865ant.jpg
and timer relay contacts.
The Yaesu FRG-7700 Receiver Users Group @ Yahoo!
http://groups.yahoo.com/group/FRG-7700/
hope this helps - iane ~ RHF