[Hammarlund] Wanted: HQ-100A improvements

[DAN COTSIRILOS]

ED in my opinion the 100 is a very inexpensive designed radio with very few
stages of gain. The older single conversation radios had many stages of gain
either in the RF or the IF or both. I don't think much can be done short of
using a ameco preamp or something similar.  Dan
----- Original Message -----
From: "Edward B Richards" <zuu6k@juno.com>
To: <hammarlund@mailman.qth.net>
Sent: Sunday, February 29, 2004 4:18 PM
Subject: [Hammarlund] Wanted: HQ-100A improvements


> Hi gang;
>
> This may have been covered recently. If so, please forgive me. I was not
> interested at the time. Now, I have a HQ-101A coming and I see the
> sensitivity is rated at 1.75 uv. This is probably fine for the lower
> frequencies where the noise level is high. However, it seems to me that a
> better sensitivity would be useful on the higher frequencies. Is there a
> simple way to improve the sensitivity by a different RF amplifier tube
> and change a few resistors?
>
> Also, I see the antenna impedance is 100 ohms. What is the best way to
> match this to 50 ohms?
>
> Thanks a bunch.
>
> 73, Ed Richards K6UUZ
>
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