HW-9 question and wants..

[William Mabry]

----- Original Message -----
From: Ron Emerson Kb9E <Rpemers at AOL.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Thursday, December 23, 1999 10:22 AM
Subject: HW-9 question and wants..


> Hello all,
>
> I just aquired a nice HW-9, HM-9 and HFT-9.  Initial tests show the HW-9
> receives and transmits on all bands except 10 meters.  It does have the
> optional accessory pack installed with the WARC bands.  10 meters is just
> dead.  Any thoughts on why only 10 would go would be a big help before I
tear
> into it.
>
> Also,  I would like to add the PSA-9 power supply and SP-99 station
speaker
> to help complete my qrp station.  If anyone wants to part with either of
> these items let me know condition and price.
>
> Thanks and Merry Christmas to all and 73'
>
> Ron
> KB9E
>
> Sponsored by the City of Tempe
>
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Sounds like your problem lies on the oscillator board in the ten meter
section of the HFO.
Look for a bad xtal at Y108 ( 42.830 Mhz ) or improper tuning of L132, L116,
L117 or bad diodes or improper biasing of same at D136, D137, D116, D117.
Solder joints should be checked, too as well as SW1, section 8... the one
with the grey wire.
Transmit / Receive freq. formula:  HFO - VFO - BFO = transmit/ Receive freq.
Hint: BFO runs at IF freq., (  APPROXIMATELY 8831 kHz ).
73 and good luck.
Bill N4QA

Sponsored by the City of Tempe 

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