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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 25th Jan 2021, 9:35 am   #1
carlos10
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Default Howes DXR20 receiver.

hallo, looking for info about alignment of the drx20 smeter,
i assume its done with vr1 on the dcs2 bord, -73dbm for s9,
seems no written info about this.....
carlos on6cn
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Old 25th Jan 2021, 11:28 am   #2
Your_Sinclair
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Default Re: Howes DXR20 receiver.

Hi,

Perhaps you could contact the GQRP Club:

http://www.gqrp.com/howes.htm

They appear to have an archive of meterial relating to the Howes Kits, as long as certain criteria, such as actual ownership of the Howes Receiver etc is met.
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Old 26th Jan 2021, 9:12 pm   #3
m0cemdave
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Default Re: Howes DXR20 receiver..

The instructions for the DCS2 only have this calibration information:

"VR1 should be set to give reasonable meter readings. It adjusts the sensitivity of the meter. Set it about three-quarters clockwise as a starting point."

I think all you can do is decide what you want it to read at S9 and set it accordingly. The meter driver circuit diagram implies that it should provide an approximately logarithmic response.

In case you haven't noticed already, the receiver type is actually DXR20 - this might help if you are doing an internet search.
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