Radio Shack Pro 107 Software' title='Radio Shack Pro 107 Software' />Adam, VA7. OJAB4. OJs IC 7. 56. Pro User Review. In July 2. I sold my IC 7. Pro from a local dealer. I am. delighted with the Pro. I find the Pro a big improvement over its predecessor, the 7. The Pro receiver seems much quieter than that of the 7. Radio-Mixer_1.png' alt='Radio Shack Pro 107 Software' title='Radio Shack Pro 107 Software' />DDS. LO implementation. The DSP IF filters have much steeper skirts than the. BCD536HP Scanning Quick Reference Card BCD436HP Scanning Quick Reference Card 325P2396XT346XT Scanning Quick Reference Card BCT15X Scanning Quick Reference Card. View and Download Radio Shack PRO96 owners manual online. Digital Trunking Handheld Scanner. PRO96 Scanner pdf manual download. Q. What is the frequency range A. MHz, although straw poll tests on preproduction units indicate that units can be stretched down to 51. MHz or so. QRM than. George, W5. YRs IF Filter. Page dramatically illustrates this point. Also, read. Georges Notes on roofing filters below. The manual pre AGC IF notch filter7. B deep is. dynamite. It makes an S92. S meter. The DSP IF. AGC loop unlike the. IC 7. 56. The combination of the DSP NR and noise blanker renders night time 4. I observe significant artifacts under strong signal. Little Shop Road Trip. These are clearly due to the NB gating. NB out. Overall, the Pro pulls the weak ones out of the noise noticeably better. The measured sensitivity. Pre amp 1 on, and 5. Hz bandwidth, is 0. V for 1. 0 d. B SNN using an HP. B generator. I am able to copy easily SSB signals which do not move the S meter. Those signals would have been barely intelligible on the 7. The ability to tailor the. Twin PBT or the filter tables also. The manual notch is also. SNR of the received signal. With the Pro, you can optimise the IF bandwidth by tailoring it to the occupied. SN ratio. Also, the DSP IF. AGC loop, so strong signals outside the DSP filter bandwidth will. The fact that all the DSP IF filters, including the Manual Notch. Auto Notch are inside the AGC loop sets the Pro and the late. Com 3C509 Drivers there. Kachina 5. 05 apart from all other amateur HF transceivers on the market. The vertical sensitivity of the 7. Pro Spectrum Scope is significantly higher than that. A signal of less than 1 V is visible, whilst the 7. V. to produce a spike. The only alignment procedure for the IC 7. Pro spectrum scope is. The horizontal frequency display is in. The CAL control on the lower right. Incidentally, you can observe the. Scope. during Tx ON in the Scope Set menu. The transmit speech amplifier of the Pro has a little less gain than that of the 7. MIC GAIN setting when using a Heil microphone with a dynamic. HC 4 or HC 5. The new Heil HM i electret will fully drive the Pro with Mic Gain. The infinitely variable DSP IF filters have far better shape factors than classical. The tuneable IF notch filter is 7. B deep. And once you have got. The AGC voltage. is also derived from the DSP. The IC 7. 56. Pro and an Icom amplifier PW 1, IC 4. KL or IC 2. KLAT 5. The Pro can also be interfaced to a Yaesu. Quadra. My first impressions of the Quadra are documented here. A sample. of the 3. Hz analogue transmit IF at the output of the main DAC is. LO is the 3. 6 k. Hz  ADCDAC. clock. The resulting audio is fed to the speakerheadphone output and the accessory. ACC1 Pin 5.   At the sampling point, the IF parameters are those of the. Using the Monitor and a good pair of headphones, you can set up the Pro for the desired. Try switching between NAR, MID and WIDE. TX occupied bandwidth. View. George. W5. YRs IC 7. 56. Pro Monitor page. The recommended microphone for the 7. Pro is the Heil HM i. The HM i is plugged directly into. MIC socket. 7. 56. Pro Settings MIC GAIN at 9 oclock, Treble 5 d. B, Bass. 2d. B, compression OFF and Tx occupied bandwidth MID COMP OFF MID. No auxiliary. equipment is interposed between the microphone and the radio. If compression is used, set COMP ON. MID, and adjust COMP for 5 to 1. B compression, no more. This will avoid overdrive. In May 2. 00. 2, I purchased an IC 7. Pro II at the Dayton Hamvention. Upon returning home, I installed the Pro II in my station and began evaluating it. One week later, I can report that the verdict is very favourable. I have been using the Pro II, and have. Pro. So far, I have noticed superior strong signal handling, DSP IF filtering. DSP noise reduction NR. The adjustable noise blanker NB threshold is also a big. NB level in the old Pro. I find that by increasing the. NB threshold from 5. I can almost completely eliminate. HV power line noise. The improvement in on the. IC 7. 56. Pro II is dramatic. My nearest ham. neighbour is 1 km down the street from me, and has a 3 element quad at a height. When he transmits SSB on 2. W PEP S9 6. 0 d. B at. QTH, the peakvalues. Offset k. Hz Strength. Scope. 10. S54. 0 d. B1. 5S32. 0 d. B2. S21. 0 d. B3. 5S11. BFront end settings for this test are Preamp OFF, ATT off, RF Gain 1. Spectrum Scope settings are Span 1. Hz, ATT off. For offset 2. Hz, the. artifacts are barely audible, and do not degrade the intelligibility of weak SSB signals S1. S2, despite the increase in scope grass level due to this powerful. By contrast, my neighbours transmissions overloaded the IC 7. Pro front end. so severely as to render the entire 2. The Manual Notch is at least as good as that of the Pro. The. Auto Notch is more effective in suppressing multiple tones, and the. DSP artifacts and munge. There was occasionally a. Pro. Note The. Auto Notch is not selectable in CW mode, as it would function to notch out the. CW signal that one is trying to receive. This applies to the IC 7. Pro and. IC 7. 56. Pro II. The Manual Notch can also be effective in removing the most disturbing. During a recent sked on 1. Matt KK5. DR, a band limited noise. Hz wide popped up on our frequency at about S9. Matts signal at that time was running. S6, and the interference obliterated it. By engaging MN and adjusting the Manual Notch control, I was able to pull Matts signal right. I defy any. analogue radio to emulate this. Using the Twin PBT with the 2. Hz CW filter selected, one can crank the CW. IF filter bandwidth down to 5. Hz as in the Pro. The CW Pitch control will not put the. CW signal out of the IF filter passband, even at 5. Hz bandwidth. December 2. Although my experience with my new Pro. PRO. has been greatly improved. I cannot recall ever having to use attenuation with. PRO although I normally used Preamp 1 most of the time. With the Pro. 2, I. Preamp or attenuator. The Pro. 2 front end is really that much. PRO. My experience with the original PRO dates back to. September 2. 00. 0. I can copy an S2 CW signal less than 1. Hz from an S93. 0 d. B signal using a. Hz filter setting. There is no evidence of desensing or cross modulation. I think that Icom has figured out how to make. Split Wide Open Movie here. Rohde Schwarz. I agree with comments  by other reviewers to the effect that a 2. PRO series does not. January 2. 00. 3 Concerning the ability of Icom receivers to deal with close in strong signals. I am happy to report that the Pro. I ever expected. This parallels Adams. Pro. 2. My experience with the strong local station at my QTH closely mirrors Adams. I can copy very weak signals almost within the same filter passband. S94. 0 d. B signal. When I tune out the main response to the strong signal. I can identify. This behavior is clearly superior to that of the PRO. I have a contest local station about a mile away who runs S96. B when he is on. Heard him on 4. CW the other evening and found that with no attenuation or other measures. I could copy weak signals within a few hundred Hz of his frequency. With the original PRO. Last night January 9, 2. I had an S96. 0 d. B AM signal on 7. I could copy an S3 SSB signal about 2 KHz away. I was getting a lot. AM signal, but it was not sufficient to desense or. SSB copy. This is the best test I have had of the Pro. November 2. 00. 3 It seems to me that Icom thoroughly assessed a wide range of operating environments.