DSP in IF Stage?
 

There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

wrote in message
...
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

It can certainly can be done, it's pretty common now for radios to use DSP
at up to even a couple of hundred MHz. Whether there are ham txrs with this
I'm unsure of.

Ken

wrote in message
...
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

It can certainly can be done, it's pretty common now for radios to use DSP
at up to even a couple of hundred MHz. Whether there are ham txrs with this
I'm unsure of.

Ken

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.
73 Ron KN0R

wrote in :

There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.
73 Ron KN0R

wrote in :

There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.


So is the 746Pro. I have never had a better Rx. The noise reduction and
filtering capability can not be beat by any other rig even close to this
price range.


Ed WB6SAT

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.


So is the 746Pro. I have never had a better Rx. The noise reduction and
filtering capability can not be beat by any other rig even close to this
price range.


Ed WB6SAT

In my Kachina the second IF is under 100 khtz , this is where the dsp is.
the dsp does the detection.
KA9CAR



"Ed G" wrote in message
.248...

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.


So is the 746Pro. I have never had a better Rx. The noise reduction
and
filtering capability can not be beat by any other rig even close to this
price range.


Ed WB6SAT

In my Kachina the second IF is under 100 khtz , this is where the dsp is.
the dsp does the detection.
KA9CAR



"Ed G" wrote in message
.248...

The Icom 746pro and 756proII both use DSP in the IF stage. I use the
756pro and it's a wonderful rig.


So is the 746Pro. I have never had a better Rx. The noise reduction
and
filtering capability can not be beat by any other rig even close to this
price range.


Ed WB6SAT

The TS-2000 has a 12KHz IF feeding the DSP. All those old hardware tasks
done in software now.


--
Steve N, K,9;d, c. i My email has no u's.

"Ken Taylor" wrote in message
...
wrote in message
...
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

It can certainly can be done, it's pretty common now for radios to use DSP
at up to even a couple of hundred MHz. Whether there are ham txrs with
this
I'm unsure of.

Ken

The TS-2000 has a 12KHz IF feeding the DSP. All those old hardware tasks
done in software now.


--
Steve N, K,9;d, c. i My email has no u's.

"Ken Taylor" wrote in message
...
wrote in message
...
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

It can certainly can be done, it's pretty common now for radios to use DSP
at up to even a couple of hundred MHz. Whether there are ham txrs with
this
I'm unsure of.

Ken

Harris has been producing the RF-5000 series HF transceivers since about
1990 with DSP IF. Bandwidth can be selected from 340hz to 6khz. AGC,
syllabic squelch, AM/SSB modulation and demodulation is also done in
DSP. The roofing filter in this series is only 8khz wide and the
receiver performance is fantastic!
Mike

wrote:
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database

Harris has been producing the RF-5000 series HF transceivers since about
1990 with DSP IF. Bandwidth can be selected from 340hz to 6khz. AGC,
syllabic squelch, AM/SSB modulation and demodulation is also done in
DSP. The roofing filter in this series is only 8khz wide and the
receiver performance is fantastic!
Mike

wrote:
There's a number of commercial amateur transceivers that have
DSP in the audio stages but do any have DSP in the IF before the
detector/AGC?

73 Don K6LTS
address in QRZ database