Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old January 13th 04, 04:51 PM
William Mutch
 
Posts: n/a
Default Looking for decent HF signal generator

Our undergrad teaching labs have a couple of really crappy cheapo
RF signal generators that will do LF and HF on fundimental and near VHF
on 3rd harmonic. The waveform is so unstable that you're lucky to be
able to read 2nd signifcant fugure of frequency on a good counter and
the voltage output across a purely resistive load varies more than
10dbv. They are just about useless.
Does anyone know of a model that could be got, new or used, for
not much more than a kilodollar that would be stable and readable to at
least three signifcant figs. (interpolate to 4 ) and is well enough
buffered to maintain a constant output level.

tnx 73 kc2lvq
  #2   Report Post  
Old January 13th 04, 05:39 PM
Steve
 
Posts: n/a
Default

If you don't mind older tube equipment, consider
an HP 606 for HF, and HP 608 for VHF. They are
excellent, stable, and well calibrated signal generators
that can be had really cheap.

Steve
p.s.-for better frequency accuracy, use an external counter

William Mutch wrote in message
ell.edu...
Our undergrad teaching labs have a couple of really crappy cheapo
RF signal generators that will do LF and HF on fundimental and near VHF
on 3rd harmonic. The waveform is so unstable that you're lucky to be
able to read 2nd signifcant fugure of frequency on a good counter and
the voltage output across a purely resistive load varies more than
10dbv. They are just about useless.
Does anyone know of a model that could be got, new or used, for
not much more than a kilodollar that would be stable and readable to at
least three signifcant figs. (interpolate to 4 ) and is well enough
buffered to maintain a constant output level.

tnx 73 kc2lvq



  #3   Report Post  
Old January 13th 04, 05:39 PM
Steve
 
Posts: n/a
Default

If you don't mind older tube equipment, consider
an HP 606 for HF, and HP 608 for VHF. They are
excellent, stable, and well calibrated signal generators
that can be had really cheap.

Steve
p.s.-for better frequency accuracy, use an external counter

William Mutch wrote in message
ell.edu...
Our undergrad teaching labs have a couple of really crappy cheapo
RF signal generators that will do LF and HF on fundimental and near VHF
on 3rd harmonic. The waveform is so unstable that you're lucky to be
able to read 2nd signifcant fugure of frequency on a good counter and
the voltage output across a purely resistive load varies more than
10dbv. They are just about useless.
Does anyone know of a model that could be got, new or used, for
not much more than a kilodollar that would be stable and readable to at
least three signifcant figs. (interpolate to 4 ) and is well enough
buffered to maintain a constant output level.

tnx 73 kc2lvq



  #4   Report Post  
Old January 13th 04, 07:41 PM
Clif Holland
 
Posts: n/a
Default

Watch Ebay for HP 8656A or B Sig Generators. Synthesized to 990 Mhz. Stable
and programmable. Have been going for around $500. Can use an external
reference for more accuracy.

--
Clif Holland, KA5IPF
AVVid
Authorized Kenwood and Icom Service Center
816 W Shady Grove Rd
Irving, TX 75060

www.avvid.com

1-800-214-5779
972-870-0630 (Local)
"William Mutch" wrote in message
ell.edu...
Our undergrad teaching labs have a couple of really crappy cheapo
RF signal generators that will do LF and HF on fundimental and near VHF
on 3rd harmonic. The waveform is so unstable that you're lucky to be
able to read 2nd signifcant fugure of frequency on a good counter and
the voltage output across a purely resistive load varies more than
10dbv. They are just about useless.
Does anyone know of a model that could be got, new or used, for
not much more than a kilodollar that would be stable and readable to at
least three signifcant figs. (interpolate to 4 ) and is well enough
buffered to maintain a constant output level.

tnx 73 kc2lvq



  #5   Report Post  
Old January 13th 04, 07:41 PM
Clif Holland
 
Posts: n/a
Default

Watch Ebay for HP 8656A or B Sig Generators. Synthesized to 990 Mhz. Stable
and programmable. Have been going for around $500. Can use an external
reference for more accuracy.

--
Clif Holland, KA5IPF
AVVid
Authorized Kenwood and Icom Service Center
816 W Shady Grove Rd
Irving, TX 75060

www.avvid.com

1-800-214-5779
972-870-0630 (Local)
"William Mutch" wrote in message
ell.edu...
Our undergrad teaching labs have a couple of really crappy cheapo
RF signal generators that will do LF and HF on fundimental and near VHF
on 3rd harmonic. The waveform is so unstable that you're lucky to be
able to read 2nd signifcant fugure of frequency on a good counter and
the voltage output across a purely resistive load varies more than
10dbv. They are just about useless.
Does anyone know of a model that could be got, new or used, for
not much more than a kilodollar that would be stable and readable to at
least three signifcant figs. (interpolate to 4 ) and is well enough
buffered to maintain a constant output level.

tnx 73 kc2lvq





  #6   Report Post  
Old January 13th 04, 09:13 PM
Yrrah
 
Posts: n/a
Default

I would certainly advise the HP8640B (to 512 MHz). One of the best
signalgenerators available. And ... affordable.
Cheers,
Harke, PA0HRK

William Mutch schreef in berichtnieuws
...



  #7   Report Post  
Old January 13th 04, 09:13 PM
Yrrah
 
Posts: n/a
Default

I would certainly advise the HP8640B (to 512 MHz). One of the best
signalgenerators available. And ... affordable.
Cheers,
Harke, PA0HRK

William Mutch schreef in berichtnieuws
...



Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: AN/TRM-1 Signal Generator N4BUQ Boatanchors 0 November 11th 04 02:57 AM
FA: Boonton 202 AM/FM Signal Generator No Reserve Ken Boatanchors 0 November 8th 04 12:53 PM
FS: EICO Signal generator twins, models 360 & 320 Al Schapira Boatanchors 1 September 15th 04 11:19 PM
FS: Precision signal generator twins, models E-200 & E-400 Al Schapira Boatanchors 0 September 13th 04 04:51 PM
FS HP 8640B SIGNAL GENERATOR [email protected] Boatanchors 0 May 24th 04 02:25 PM


All times are GMT +1. The time now is 11:23 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017