[Hammarlund] HQ-170 Question

[Bob Young]

If the cans are similar to the ones in an HQ-180 and I'm sure they are, it 
is very difficult to get the covers off without taking the whole can out, in 
fact I had to replace one that I butchered trying to do just that,

Bob Young
Millbury, MA
KB1OKL


>From: DW Holtman <future212 at comcast.net>
>To: hammarlund at mailman.qth.net
>Subject: [Hammarlund] HQ-170 Question
>Date: Sat, 05 May 2007 08:59:47 -0600
>
>Hello,
>
>First, I would like to thank all of you who responded to my last question 
>about distortion and difficulty in tunning in a SSB signal. It turned out 
>to be the usual, dirty connectors and a very careful alignment.
>
>Yesterday I did an RF alignment. It went fine except for the following. The 
>21 MHZ band has very low sensitivity, around 12 uV, using my ear for the 
>lowest discernible signal I could hear (MDS). (20 Meters for example was 
>under 1 uV). The oscillator coil T-25 adjusted the frequency of the 
>oscillator fine. But, the RF coil T-21 has no adjustment. Suspect a bad cap 
>or broken coil wire the Can. Is it possible to remove the cover using the 
>clip device on the bottom of the can without un-soldering the whole thing?
>
>Also, the sensitivity on 80 meters is not very good and 160 has very bad 
>sensitivity, around 30 uV MDS. On both of these low bands, all adjustments 
>worked as they are suppose to.
>
>Any thoughts or suggestions would be greatly appreciated.
>
>Best,
>DW Holtman
>WB7SSN
>
>
>
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